SERVER-108478 JS formatted by prettier and remove clang-format (#39656)

GitOrigin-RevId: 6c8f6aded47f260aa4f7c231b17dae3302cb1e04

.git-blame-ignore-revs

@@ -1,3 +1,6 @@
+# SERVER-108478 Prettier JS format
+1adc32cdd5d6f7b8a9283d328bf7aa7d32caba6b
+
 # SERVER-72197 Clang format v12.0.1
 f63255ee677ecae5896d6f35dd712ed60ae8c39a
 ff917ea96cf91f76bbd73b0d88d626a8523c5ec0

.prettierignore

@@ -12,6 +12,7 @@
 !*.yml
 !*.yaml
 !*.idl
+!*.js
 
 # Opt in specific JS file paths
 !*.mjs

.prettierrc

@@ -4,7 +4,9 @@
         {
             "files": ["*.js", "*.mjs"],
             "options": {
-                "tabWidth": 4
+                "tabWidth": 4,
+                "printWidth": 120,
+                "quoteProps": "preserve"
             }
         },
         {

.vscode_defaults/linux-virtual-workstation.code-workspace

@@ -8,6 +8,7 @@
 		"clangd.checkUpdates": true,
 		"clangd.path": "${workspaceFolder}/buildscripts/clangd_vscode.sh",
 		"clang-format.executable": "${workspaceRoot}/bazel-out/../../../external/mongo_toolchain_v5/v5/bin/clang-format",
+		"prettier.prettierPath": "bazel-bin/node_modules/.aspect_rules_js/prettier@3.4.2/node_modules/prettier",
 		"clang-tidy.executable": "buildscripts/clang_tidy_vscode.py",
 		"editor.codeActionsOnSave": {
 			"source.fixAll.eslint": "explicit"
@@ -43,7 +44,7 @@
 			"editor.formatOnSave": true,
 		},
 		"[javascript]": {
-			"editor.defaultFormatter": "xaver.clang-format",
+			"editor.defaultFormatter": "esbenp.prettier-vscode",
 			"editor.formatOnSave": true,
 		},
 		"[python]": {

bazel/format/BUILD.bazel

@@ -29,11 +29,12 @@ py_binary(
 
 format_multirun(
     name = "rules_lint_format",
-    c = "//:clang_format",
-    cc = "//:clang_format",
+    #c = "//:clang_format",
+    #cc = "//:clang_format",
     css = "//:prettier",
     graphql = "//:prettier",
     html = "//:prettier",
+    javascript = "//:prettier",
     markdown = "//:prettier",
     shell = "@shfmt//:shfmt",
     sql = "//:prettier",

buildscripts/eslint-plugin-mongodb/rules/no-print-fn.js

@@ -1,11 +1,6 @@
-const stopList = [
-    "print",
-    "printjson",
-    "printjsononeline",
-];
+const stopList = ["print", "printjson", "printjsononeline"];
 
 export default {
-
     meta: {
         type: "problem",
         docs: {
@@ -17,19 +12,17 @@ export default {
     create(context) {
         return {
             CallExpression: function (node) {
-                if (node.callee.type == "Identifier" &&
-                    stopList.some(fn => fn == node.callee.name)) {
-                    context.report(
-                        {
+                if (node.callee.type == "Identifier" && stopList.some((fn) => fn == node.callee.name)) {
+                    context.report({
                         node,
                         message: `Direct use of '${
-                                node.callee
-                                    .name}()'. Consider using jsTest.log.info() instead or disable mongodb/no-print-fn rule when necessary, e.g., '// eslint-disable-next-line mongodb/no-print-fn'
+                            node.callee.name
+                        }()'. Consider using jsTest.log.info() instead or disable mongodb/no-print-fn rule when necessary, e.g., '// eslint-disable-next-line mongodb/no-print-fn'
 
 More about rules configuration: https://eslint.org/docs/latest/use/configure/rules`,
                     });
                 }
-            }
+            },
         };
-    }
+    },
 };

buildscripts/eslint-plugin-mongodb/rules/no-printing-tojson.js

@@ -1,11 +1,11 @@
 const print_fns = [
-    'jsTestLog',
-    'jsTest.log',
-    'jsTest.log.info',
-    'jsTest.log.debug',
-    'jsTest.log.warning',
-    'jsTest.log.error',
-    'print',
+    "jsTestLog",
+    "jsTest.log",
+    "jsTest.log.info",
+    "jsTest.log.debug",
+    "jsTest.log.warning",
+    "jsTest.log.error",
+    "print",
 ];
 
 function flattenMemberExpressionName(expr) {
@@ -19,7 +19,6 @@ function flattenMemberExpressionName(expr) {
 }
 
 export default {
-
     meta: {
         type: "problem",
         docs: {
@@ -33,40 +32,28 @@ export default {
             CallExpression: function (node) {
                 if (node.callee.type == "MemberExpression") {
                     node.callee.name = flattenMemberExpressionName(node.callee);
+                } else if (node.callee.type != "Identifier") return;
 
-                } else if (node.callee.type != "Identifier")
-                    return;
+                if (print_fns.every((name) => name != node.callee.name)) return;
 
-                if (print_fns.every((name) => name != node.callee.name))
-                    return;
+                node.arguments.forEach((arg) => {
+                    if (arg.type != "CallExpression") return;
 
-                node.arguments.forEach(arg => {
-                    if (arg.type != "CallExpression")
-                        return;
+                    if (arg.callee.type != "Identifier") return;
 
-                    if (arg.callee.type != "Identifier")
-                        return;
+                    if (arg.callee.name != "tojson" && arg.callee.name != "tojsononeline") return;
 
-                    if (arg.callee.name != "tojson" && arg.callee.name != "tojsononeline")
-                        return;
-
-                    context.report(
-                        {
+                    context.report({
                         node,
                         message: `Calling ${arg.callee.name}() as a parameter of ${
-                                node.callee
-                                    .name}(). Consider using toJsonForLog() instead or disable this rule by adding '// eslint-disable-next-line mongodb/no-printing-tojson'`,
+                            node.callee.name
+                        }(). Consider using toJsonForLog() instead or disable this rule by adding '// eslint-disable-next-line mongodb/no-printing-tojson'`,
                         fix(fixer) {
-                                return fixer.replaceTextRange(
-                                    [
-                                        arg.callee.start,
-                                        arg.callee.end,
-                                    ],
-                                    "toJsonForLog");
-                            }
+                            return fixer.replaceTextRange([arg.callee.start, arg.callee.end], "toJsonForLog");
+                        },
                     });
                 });
-            }
+            },
         };
-    }
+    },
 };

buildscripts/tests/resmoke_end2end/failtestfiles/js_failure.js

@@ -1 +1 @@
-assert.eq(true, false)
+assert.eq(true, false);

buildscripts/tests/resmoke_end2end/testfiles/fixture_info.js

@@ -1,6 +1,5 @@
 (function () {
     "use strict";
 
-writeFile(TestData.outputLocation,
-          tojson(db.adminCommand("getCmdLineOpts")["parsed"]["setParameter"]));
-}());
+    writeFile(TestData.outputLocation, tojson(db.adminCommand("getCmdLineOpts")["parsed"]["setParameter"]));
+})();

buildscripts/tests/resmoke_end2end/testfiles/fixture_info_mongos.js

@@ -4,6 +4,5 @@
     print("DEBUG BUILDINFO");
     printjson(db.adminCommand("buildInfo"));
 
-writeFile(TestData.outputLocation,
-          tojson(db.adminCommand("getCmdLineOpts")["parsed"]["setParameter"]));
-}());
+    writeFile(TestData.outputLocation, tojson(db.adminCommand("getCmdLineOpts")["parsed"]["setParameter"]));
+})();

buildscripts/tests/resmoke_end2end/testfiles/mocha/async.js

@@ -1,12 +1,4 @@
-
-import {
-    after,
-    afterEach,
-    before,
-    beforeEach,
-    describe,
-    it,
-} from "jstests/libs/mochalite.js";
+import {after, afterEach, before, beforeEach, describe, it} from "jstests/libs/mochalite.js";
 
 // validate test execution and ordering among sync and async content
 

buildscripts/tests/resmoke_end2end/testfiles/mocha/grep_names.js

@@ -1,4 +1,3 @@
-
 import {describe, it} from "jstests/libs/mochalite.js";
 
 describe("fruits", () => {

buildscripts/tests/resmoke_end2end/testfiles/mocha/test_fail.js

@@ -1,8 +1,7 @@
-
 import {describe, it} from "jstests/libs/mochalite.js";
 
-const pass = () => assert(true, 'pass');
-const fail = () => assert(false, 'fail');
+const pass = () => assert(true, "pass");
+const fail = () => assert(false, "fail");
 
 it("test1", pass);
 it("test2", pass);

buildscripts/tests/resmoke_end2end/testfiles/validatecollections/test_fail.js

@@ -4,11 +4,13 @@ const adminDB = db.getSiblingDB("admin");
 
 assert.commandWorked(t.insert({_id: 1, x: 1}));
 
-assert.commandWorked(adminDB.runCommand({
+assert.commandWorked(
+    adminDB.runCommand({
         configureFailPoint: "failCommand",
         mode: "alwaysOn",
         data: {
             errorCode: ErrorCodes.InternalError,
             failCommands: ["validate"],
-    }
-}));
+        },
+    }),
+);

eslint.config.mjs

@@ -17,11 +17,7 @@ const compat = new FlatCompat({
 export default [
     ...compat.extends("eslint:recommended"),
     {
-        ignores: [
-            "src/mongo/gotools/*",
-            "**/*.tpl.js",
-            "jstests/third_party/**/*.js",
-        ],
+        ignores: ["src/mongo/gotools/*", "**/*.tpl.js", "jstests/third_party/**/*.js"],
     },
     {
         languageOptions: {
@@ -336,13 +332,13 @@ export default [
             "no-redeclare": 0,
             "no-constant-condition": 0,
             "no-loss-of-precision": 0,
+            "no-unexpected-multiline": 0,
             semi: 2,
 
             "no-restricted-syntax": [
                 "error",
                 {
-                    message:
-                        "Invalid load call. Please convert your library to a module and import it instead.",
+                    message: "Invalid load call. Please convert your library to a module and import it instead.",
                     selector: 'CallExpression > Identifier[name="load"]',
                 },
             ],
@@ -381,11 +377,7 @@ export default [
     },
     {
         // Shell-specific: extra strict!
-        files: [
-            "jstests/core/js/**",
-            "jstests/noPassthrough/shell/**",
-            "src/mongo/shell/**",
-        ],
+        files: ["jstests/core/js/**", "jstests/noPassthrough/shell/**", "src/mongo/shell/**"],
         rules: {
             "no-var": 2,
             "no-unused-vars": [2, {args: "none", caughtErrors: "none"}],

etc/evergreen_yml_components/tasks/misc_tasks.yml

@@ -676,37 +676,6 @@ tasks:
           target: >-
             //buildscripts:resmoke -- --help
 
-  - name: lint_clang_format
-    tags:
-      [
-        "assigned_to_jira_team_devprod_build",
-        "development_critical_single_variant",
-        "lint",
-      ]
-    commands:
-      - command: timeout.update
-        params:
-          # 20 mins
-          exec_timeout_secs: 1200
-      - func: "f_expansions_write"
-      - command: manifest.load
-      - func: "git get project and add git tag"
-      - func: "f_expansions_write"
-      - func: "kill processes"
-      - func: "cleanup environment"
-      - func: "set up venv"
-      - func: "upload pip requirements"
-      - func: "get engflow creds"
-      - command: subprocess.exec
-        type: test
-        params:
-          binary: bash
-          args:
-            - "./src/evergreen/run_python_script_with_report.sh"
-            - "lint-clang-format"
-            - "buildscripts/clang_format.py"
-            - "lint-all"
-
   - name: bazel_run_lint
     tags:
       [

jstests/aggregation/accumulators/accumulator_js.js

@@ -12,9 +12,10 @@ for (const word of ["hello", "world", "world", "hello", "hi"]) {
 }
 
 const command = {
-    aggregate: 'accumulator_js',
+    aggregate: "accumulator_js",
     cursor: {},
-    pipeline: [{
+    pipeline: [
+        {
             $group: {
                 _id: "$word",
                 wordCount: {
@@ -31,11 +32,12 @@ const command = {
                         },
                         finalize: function (state) {
                             return state;
-                    }
-                }
-            }
-        }
-    }],
+                        },
+                    },
+                },
+            },
+        },
+    ],
 };
 
 let expectedResults = [
@@ -65,8 +67,11 @@ assert(resultsEq(res.cursor.firstBatch, expectedResults), res.cursor);
 
 // Test a finalizer other than the identity function. Finalizers are useful when the intermediate
 // state needs to be a different format from the final result.
-res = assert.commandWorked(db.runCommand(Object.merge(command, {
-    pipeline: [{
+res = assert.commandWorked(
+    db.runCommand(
+        Object.merge(command, {
+            pipeline: [
+                {
                     $group: {
                         _id: 1,
                         avgWordLen: {
@@ -84,12 +89,15 @@ res = assert.commandWorked(db.runCommand(Object.merge(command, {
                                 finalize: function ({count, sum}) {
                                     return sum / count;
                                 },
-                    lang: 'js',
-                }
+                                lang: "js",
                             },
-        }
-    }],
-})));
+                        },
+                    },
+                },
+            ],
+        }),
+    ),
+);
 assert(resultsEq(res.cursor.firstBatch, [{_id: 1, avgWordLen: 22 / 5}]), res.cursor);
 
 // Test that a null word is considered a valid value.
@@ -102,7 +110,8 @@ assert(resultsEq(res.cursor.firstBatch, expectedResults), res.cursor);
 // This is similar to how most other agg operators work.
 assert(db.accumulator_js.drop());
 assert.commandWorked(db.accumulator_js.insert({sentinel: 1}));
-command.pipeline = [{
+command.pipeline = [
+    {
         $group: {
             _id: 1,
             value: {
@@ -117,16 +126,18 @@ command.pipeline = [{
                     merge: function (s1, s2) {
                         return s1.concat(s2);
                     },
-                lang: 'js',
-            }
-        }
-    }
-}];
+                    lang: "js",
+                },
+            },
+        },
+    },
+];
 res = assert.commandWorked(db.runCommand(command));
 assert(resultsEq(res.cursor.firstBatch, [{_id: 1, value: [null]}]), res.cursor);
 
 // Test that initArgs must evaluate to an array.
-command.pipeline = [{
+command.pipeline = [
+    {
         $group: {
             _id: 1,
             value: {
@@ -136,15 +147,17 @@ command.pipeline = [{
                     accumulateArgs: [],
                     accumulate: function () {},
                     merge: function () {},
-                lang: 'js',
-            }
-        }
-    }
-}];
+                    lang: "js",
+                },
+            },
+        },
+    },
+];
 assert.commandFailedWithCode(db.runCommand(command), 4544711);
 
 // Test that initArgs is passed to init.
-command.pipeline = [{
+command.pipeline = [
+    {
         $group: {
             _id: 1,
             value: {
@@ -160,52 +173,57 @@ command.pipeline = [{
                     merge: function (s1, s2) {
                         return s1;
                     },
-                lang: 'js',
-            }
-        }
-    }
-}];
+                    lang: "js",
+                },
+            },
+        },
+    },
+];
 res = assert.commandWorked(db.runCommand(command));
-assert(resultsEq(res.cursor.firstBatch, [{_id: 1, value: "initial_state_set_from_ABC_and_DEF"}]),
-       res.cursor);
+assert(resultsEq(res.cursor.firstBatch, [{_id: 1, value: "initial_state_set_from_ABC_and_DEF"}]), res.cursor);
 
 // Test that when initArgs errors, we fail gracefully, and don't call init.
-command.pipeline = [{
+command.pipeline = [
+    {
         $group: {
             _id: 1,
             value: {
                 $accumulator: {
                     init: function () {
-                    throw 'init should not be called';
+                        throw "init should not be called";
                     },
                     // Use $cond to thwart constant folding, to ensure we are testing evaluate rather
                     // than optimize.
                     initArgs: {$add: {$cond: ["$foo", "", ""]}},
                     accumulateArgs: [],
                     accumulate: function () {
-                    throw 'accumulate should not be called';
+                        throw "accumulate should not be called";
                     },
                     merge: function () {
-                    throw 'merge should not be called';
+                        throw "merge should not be called";
                     },
-                lang: 'js',
-            }
-        }
-    }
-}];
+                    lang: "js",
+                },
+            },
+        },
+    },
+];
 // ErrorCodes.TypeMismatch means "$add only supports numeric or date types". Code 16554 represented
 // a type mismatch before 6.1 for this specific check.
 assert.commandFailedWithCode(db.runCommand(command), [16554, ErrorCodes.TypeMismatch]);
 
 // Test that initArgs can have a different length per group.
 assert(db.accumulator_js.drop());
-assert.commandWorked(db.accumulator_js.insert([
-    {_id: 1, a: ['A', 'B', 'C']},
-    {_id: 2, a: ['A', 'B', 'C']},
-    {_id: 3, a: ['X', 'Y']},
-    {_id: 4, a: ['X', 'Y']},
-]));
-command.pipeline = [{
+assert.commandWorked(
+    db.accumulator_js.insert([
+        {_id: 1, a: ["A", "B", "C"]},
+        {_id: 2, a: ["A", "B", "C"]},
+        {_id: 3, a: ["X", "Y"]},
+        {_id: 4, a: ["X", "Y"]},
+    ]),
+);
+command.pipeline = [
+    {
         $group: {
             _id: {a: "$a"},
             value: {
@@ -221,19 +239,24 @@ command.pipeline = [{
                     merge: function (s1, s2) {
                         return s1;
                     },
-                lang: 'js',
-            }
-        }
-    }
-}];
+                    lang: "js",
+                },
+            },
+        },
+    },
+];
 res = assert.commandWorked(db.runCommand(command));
 assert(
-    resultsEq(res.cursor.firstBatch,
-              [{_id: {a: ['A', 'B', 'C']}, value: "A,B,C"}, {_id: {a: ['X', 'Y']}, value: "X,Y"}]),
-    res.cursor);
+    resultsEq(res.cursor.firstBatch, [
+        {_id: {a: ["A", "B", "C"]}, value: "A,B,C"},
+        {_id: {a: ["X", "Y"]}, value: "X,Y"},
+    ]),
+    res.cursor,
+);
 
 // Test that accumulateArgs must evaluate to an array.
-command.pipeline = [{
+command.pipeline = [
+    {
         $group: {
             _id: 1,
             value: {
@@ -242,15 +265,17 @@ command.pipeline = [{
                     accumulateArgs: {$const: 5},
                     accumulate: function (state, value) {},
                     merge: function (s1, s2) {},
-                lang: 'js',
-            }
-        }
-    }
-}];
+                    lang: "js",
+                },
+            },
+        },
+    },
+];
 assert.commandFailedWithCode(db.runCommand(command), 4544712);
 
 // Test that accumulateArgs can have more than one element.
-command.pipeline = [{
+command.pipeline = [
+    {
         $group: {
             _id: 1,
             value: {
@@ -263,19 +288,19 @@ command.pipeline = [{
                     merge: function (s1, s2) {
                         return s1 || s2;
                     },
-                lang: 'js',
-            }
-        }
-    }
-}];
-res = assert.commandWorked(db.runCommand(command));
-expectedResults = [
-    {_id: 1, value: "ABCDEF"},
+                    lang: "js",
+                },
+            },
+        },
+    },
 ];
+res = assert.commandWorked(db.runCommand(command));
+expectedResults = [{_id: 1, value: "ABCDEF"}];
 assert(resultsEq(res.cursor.firstBatch, expectedResults), res.cursor);
 
 // Test that accumulateArgs can have a different length per document.
-command.pipeline = [{
+command.pipeline = [
+    {
         $group: {
             _id: 1,
             value: {
@@ -292,14 +317,23 @@ command.pipeline = [{
                     merge: function (s1, s2) {
                         return s1.concat(s2);
                     },
-                lang: 'js',
-            }
-        }
-    }
-}];
+                    lang: "js",
+                },
+            },
+        },
+    },
+];
 res = assert.commandWorked(db.runCommand(command));
 expectedResults = [
-    {_id: 1, value: [['A', 'B', 'C'], ['A', 'B', 'C'], ['X', 'Y'], ['X', 'Y']]},
+    {
+        _id: 1,
+        value: [
+            ["A", "B", "C"],
+            ["A", "B", "C"],
+            ["X", "Y"],
+            ["X", "Y"],
+        ],
+    },
 ];
 assert(resultsEq(res.cursor.firstBatch, expectedResults), res.cursor);
 
@@ -309,7 +343,8 @@ assert(resultsEq(res.cursor.firstBatch, expectedResults), res.cursor);
 // to JS as usual.
 assert(db.accumulator_js.drop());
 assert.commandWorked(db.accumulator_js.insert({}));
-command.pipeline = [{
+command.pipeline = [
+    {
         $group: {
             _id: 1,
             value: {
@@ -320,25 +355,24 @@ command.pipeline = [{
                     accumulateArgs: [
                         null,
                         "$no_such_field",
-                    {$let: {vars: {not_an_object: 5}, in : "$not_an_object.field"}}
+                        {$let: {vars: {not_an_object: 5}, in: "$not_an_object.field"}},
                     ],
                     accumulate: function (state, ...values) {
                         return {
                             len: values.length,
-                        types: values.map(v => typeof v),
+                            types: values.map((v) => typeof v),
                             values: values,
                         };
                     },
                     merge: function (s1, s2) {
                         return s1 || s2;
                     },
-                lang: 'js',
-            }
-        }
-    }
-}];
-res = assert.commandWorked(db.runCommand(command));
-expectedResults = [
-    {_id: 1, value: {len: 3, types: ['object', 'object', 'object'], values: [null, null, null]}},
+                    lang: "js",
+                },
+            },
+        },
+    },
 ];
+res = assert.commandWorked(db.runCommand(command));
+expectedResults = [{_id: 1, value: {len: 3, types: ["object", "object", "object"], values: [null, null, null]}}];
 assert(resultsEq(res.cursor.firstBatch, expectedResults), res.cursor);

jstests/aggregation/accumulators/accumulator_js_size_limits.js

@@ -9,12 +9,14 @@ function runExample(groupKey, accumulatorSpec, aggregateOptions = {}) {
     const aggregateCmd = {
         aggregate: coll.getName(),
         cursor: {},
-        pipeline: [{
+        pipeline: [
+            {
                 $group: {
                     _id: groupKey,
                     accumulatedField: {$accumulator: accumulatorSpec},
-            }
-        }]
+                },
+            },
+        ],
     };
     return coll.runCommand(Object.assign(aggregateCmd, aggregateOptions));
 }
@@ -27,16 +29,16 @@ let res = runExample(1, {
         return "a".repeat(20 * 1024 * 1024);
     },
     accumulate: function () {
-        throw 'accumulate should not be called';
+        throw "accumulate should not be called";
     },
     accumulateArgs: [],
     merge: function () {
-        throw 'merge should not be called';
+        throw "merge should not be called";
     },
     finalize: function () {
-        throw 'finalize should not be called';
+        throw "finalize should not be called";
     },
-    lang: 'js',
+    lang: "js",
 });
 assert.commandFailedWithCode(res, [16493, 10334]);
 
@@ -49,16 +51,16 @@ res = runExample(1, {
         return Array.from({length: 20}, () => str);
     },
     accumulate: function () {
-        throw 'accumulate should not be called';
+        throw "accumulate should not be called";
     },
     accumulateArgs: [],
     merge: function () {
-        throw 'merge should not be called';
+        throw "merge should not be called";
     },
     finalize: function () {
-        throw 'finalize should not be called';
+        throw "finalize should not be called";
     },
-    lang: 'js',
+    lang: "js",
 });
 assert.commandFailedWithCode(res, [17260, 10334]);
 
@@ -80,9 +82,9 @@ res = runExample(1, {
         return state1.concat(state2);
     },
     finalize: function () {
-        throw 'finalize should not be called';
+        throw "finalize should not be called";
     },
-    lang: 'js',
+    lang: "js",
 });
 assert.commandFailedWithCode(res, [4545000]);
 
@@ -91,7 +93,8 @@ assert(coll.drop());
 assert.commandWorked(coll.insert(Array.from({length: 200}, (_, i) => ({_id: i}))));
 // By grouping on _id, each group contains only 1 document. This means it creates many
 // AccumulatorState instances.
-res = runExample("$_id",
+res = runExample(
+    "$_id",
     {
         init: function () {
             // Each accumulator state is big enough to be expensive, but not big enough
@@ -108,13 +111,16 @@ res = runExample("$_id",
         finalize: function (state) {
             return state.length;
         },
-                     lang: 'js',
+        lang: "js",
     },
-                 {allowDiskUse: false});
+    {allowDiskUse: false},
+);
 // If featureFlagShardFilteringDistinctScan is on, we will push this $group down to shards on
 // sharded collection passthrough suites, and may run out of space during JS execution of init().
-assert.commandFailedWithCode(
-    res, [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.JSInterpreterFailure]);
+assert.commandFailedWithCode(res, [
+    ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed,
+    ErrorCodes.JSInterpreterFailure,
+]);
 
 // Verify that having large number of documents doesn't cause the $accumulator to run out of memory.
 coll.drop();
@@ -134,26 +140,32 @@ const largeAccumulator = {
         },
         finalize: function (state) {
             return state.length;
-        }
-    }
+        },
+    },
 };
-res = coll.aggregate([
+res = coll
+    .aggregate([
         {$addFields: {a: {$range: [0, 1000000]}}},
         {$unwind: "$a"}, // Create a number of documents to be executed by the accumulator.
-              {$group: {_id: "$groupBy", count: largeAccumulator}}
+        {$group: {_id: "$groupBy", count: largeAccumulator}},
     ])
     .toArray();
-assert.sameMembers(res, [{_id: 1, count: 1000000}, {_id: 2, count: 1000000}]);
+assert.sameMembers(res, [
+    {_id: 1, count: 1000000},
+    {_id: 2, count: 1000000},
+]);
 
 // With $bucket.
-res =
-    coll.aggregate([
+res = coll
+    .aggregate([
         {$addFields: {a: {$range: [0, 1000000]}}},
         {$unwind: "$a"}, // Create a number of documents to be executed by the accumulator.
         {
-                $bucket:
-                    {groupBy: "$groupBy", boundaries: [1, 2, 3], output: {count: largeAccumulator}}
-            }
+            $bucket: {groupBy: "$groupBy", boundaries: [1, 2, 3], output: {count: largeAccumulator}},
+        },
     ])
     .toArray();
-assert.sameMembers(res, [{_id: 1, count: 1000000}, {_id: 2, count: 1000000}]);
+assert.sameMembers(res, [
+    {_id: 1, count: 1000000},
+    {_id: 2, count: 1000000},
+]);

jstests/aggregation/accumulators/avg_null_no_input.js

@@ -5,30 +5,30 @@ var coll = db.accumulate_avg_sum_null;
 coll.drop();
 
 // Null cases.
-assert.commandWorked(coll.insert({a: 1, b: 2, c: 'string', d: null}));
+assert.commandWorked(coll.insert({a: 1, b: 2, c: "string", d: null}));
 
 // Missing field.
-var pipeline = [{$group: {_id: '$a', avg: {$avg: '$missing'}}}];
+var pipeline = [{$group: {_id: "$a", avg: {$avg: "$missing"}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{_id: 1, avg: null}]);
 
 // Non-numeric field.
-pipeline = [{$group: {_id: '$a', avg: {$avg: '$c'}}}];
+pipeline = [{$group: {_id: "$a", avg: {$avg: "$c"}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{_id: 1, avg: null}]);
 
 // Field with value of null.
-pipeline = [{$group: {_id: '$a', avg: {$avg: '$d'}}}];
+pipeline = [{$group: {_id: "$a", avg: {$avg: "$d"}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{_id: 1, avg: null}]);
 
 // All three.
-coll.insert({a: 1, d: 'string'});
+coll.insert({a: 1, d: "string"});
 coll.insert({a: 1});
-pipeline = [{$group: {_id: '$a', avg: {$avg: '$d'}}}];
+pipeline = [{$group: {_id: "$a", avg: {$avg: "$d"}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{_id: 1, avg: null}]);
 
 // Non-null cases.
 coll.drop();
 assert.commandWorked(coll.insert({a: 1, b: 2}));
-pipeline = [{$group: {_id: '$a', avg: {$avg: '$b'}}}];
+pipeline = [{$group: {_id: "$a", avg: {$avg: "$b"}}}];
 
 // One field.
 assert.eq(coll.aggregate(pipeline).toArray(), [{_id: 1, avg: 2}]);
@@ -43,6 +43,6 @@ assert.eq(coll.aggregate(pipeline).toArray(), [{_id: 1, avg: 0}]);
 
 // Missing, null, or non-numeric fields should not error or affect the average.
 assert.commandWorked(coll.insert({a: 1}));
-assert.commandWorked(coll.insert({a: 1, b: 'string'}));
+assert.commandWorked(coll.insert({a: 1, b: "string"}));
 assert.commandWorked(coll.insert({a: 1, b: null}));
 assert.eq(coll.aggregate(pipeline).toArray(), [{_id: 1, avg: 0}]);

jstests/aggregation/accumulators/bucketAuto_concatArrays.js

@@ -15,55 +15,50 @@ coll.insertMany(docs);
 {
     // One bucket, all the documents coming out of the $bucketAuto stage should be in the same
     // order as they came in (i.e. sorted by _id).
-    const res =
-        coll.aggregate([
+    const res = coll
+        .aggregate([
             {$sort: {_id: 1}},
-                {$bucketAuto: {groupBy: "$n", buckets: 1, output: {nums: {$concatArrays: "$arr"}}}}
+            {$bucketAuto: {groupBy: "$n", buckets: 1, output: {nums: {$concatArrays: "$arr"}}}},
         ])
         .toArray();
-    const expected = [{
+    const expected = [
+        {
             "_id": {"min": 0, "max": 9},
-        "nums": [0, 42, 1, 42, 2, 42, 3, 42, 4, 42, 5, 42, 6, 42, 7, 42, 8, 42, 9, 42]
-    }];
-    assert.eq(
-        res,
-        expected,
-        "$bucketAuto with 1 bucket & $concatArrays does not obey sort order of incoming docs.");
+            "nums": [0, 42, 1, 42, 2, 42, 3, 42, 4, 42, 5, 42, 6, 42, 7, 42, 8, 42, 9, 42],
+        },
+    ];
+    assert.eq(res, expected, "$bucketAuto with 1 bucket & $concatArrays does not obey sort order of incoming docs.");
 }
 
 {
     // Two buckets, the documents in each bucket should be sorted by _id as well.
-    const res =
-        coll.aggregate([
+    const res = coll
+        .aggregate([
             {$sort: {_id: 1}},
-                {$bucketAuto: {groupBy: "$n", buckets: 2, output: {nums: {$concatArrays: "$arr"}}}}
+            {$bucketAuto: {groupBy: "$n", buckets: 2, output: {nums: {$concatArrays: "$arr"}}}},
         ])
         .toArray();
     const expected = [
         {"_id": {"min": 0, "max": 5}, "nums": [5, 42, 6, 42, 7, 42, 8, 42, 9, 42]},
-        {"_id": {"min": 5, "max": 9}, "nums": [0, 42, 1, 42, 2, 42, 3, 42, 4, 42]}
+        {"_id": {"min": 5, "max": 9}, "nums": [0, 42, 1, 42, 2, 42, 3, 42, 4, 42]},
     ];
-    assert.eq(
-        res,
-        expected,
-        "$bucketAuto with 2 buckets & $concatArrays does not obey sort order of incoming docs.");
+    assert.eq(res, expected, "$bucketAuto with 2 buckets & $concatArrays does not obey sort order of incoming docs.");
 }
 
 {
     // Ensure that if we try to $concatArrays something that evaluates to 'missing', no value gets
     // appended to the resulting array.
-    const res =
-        coll.aggregate([{
+    const res = coll
+        .aggregate([
+            {
                 "$bucketAuto": {
                     "groupBy": "$a",
                     "buckets": 1,
-                    "output":
-                        {"array": {"$concatArrays": {$getField: {"field": "b", "input": {a: 0}}}}}
-                }
-            }])
+                    "output": {"array": {"$concatArrays": {$getField: {"field": "b", "input": {a: 0}}}}},
+                },
+            },
+        ])
         .toArray();
     const expected = [{"_id": {"min": null, "max": null}, "array": []}];
-    assert.eq(res,
-              expected,
-              "$bucketAuto with $concatArrays does not append any missing values as null.");
+    assert.eq(res, expected, "$bucketAuto with $concatArrays does not append any missing values as null.");
 }

jstests/aggregation/accumulators/bucketAuto_push.js

@@ -14,13 +14,11 @@ coll.insertMany(docs);
 {
     // One bucket, all the documents coming out of the $bucketAuto stage should be in the same
     // order as they came in (i.e. sorted by _id).
-    const res =
-        coll.aggregate([
-                {$sort: {_id: 1}},
-                {$bucketAuto: {groupBy: "$n", buckets: 1, output: {docs: {$push: "$$ROOT"}}}}
-            ])
+    const res = coll
+        .aggregate([{$sort: {_id: 1}}, {$bucketAuto: {groupBy: "$n", buckets: 1, output: {docs: {$push: "$$ROOT"}}}}])
         .toArray();
-    const expected = [{
+    const expected = [
+        {
             "_id": {"min": 0, "max": 9},
             "docs": [
                 {"_id": 0, "n": 9},
@@ -32,21 +30,17 @@ coll.insertMany(docs);
                 {"_id": 6, "n": 3},
                 {"_id": 7, "n": 2},
                 {"_id": 8, "n": 1},
-            {"_id": 9, "n": 0}
-        ]
-    }];
-    assert.eq(res,
-              expected,
-              "$bucketAuto with 1 bucket & $push does not obey sort order of incoming docs.");
+                {"_id": 9, "n": 0},
+            ],
+        },
+    ];
+    assert.eq(res, expected, "$bucketAuto with 1 bucket & $push does not obey sort order of incoming docs.");
 }
 
 {
     // Two buckets, the documents in each bucket should be sorted by _id as well.
-    const res =
-        coll.aggregate([
-                {$sort: {_id: 1}},
-                {$bucketAuto: {groupBy: "$n", buckets: 2, output: {docs: {$push: "$$ROOT"}}}}
-            ])
+    const res = coll
+        .aggregate([{$sort: {_id: 1}}, {$bucketAuto: {groupBy: "$n", buckets: 2, output: {docs: {$push: "$$ROOT"}}}}])
         .toArray();
     const expected = [
         {
@@ -56,8 +50,8 @@ coll.insertMany(docs);
                 {"_id": 6, "n": 3},
                 {"_id": 7, "n": 2},
                 {"_id": 8, "n": 1},
-                {"_id": 9, "n": 0}
-            ]
+                {"_id": 9, "n": 0},
+            ],
         },
         {
             "_id": {"min": 5, "max": 9},
@@ -66,26 +60,26 @@ coll.insertMany(docs);
                 {"_id": 1, "n": 8},
                 {"_id": 2, "n": 7},
                 {"_id": 3, "n": 6},
-                {"_id": 4, "n": 5}
-            ]
-        }
+                {"_id": 4, "n": 5},
+            ],
+        },
     ];
-    assert.eq(res,
-              expected,
-              "$bucketAuto with 2 buckets & $push does not obey sort order of incoming docs.");
+    assert.eq(res, expected, "$bucketAuto with 2 buckets & $push does not obey sort order of incoming docs.");
 }
 
 {
     // Ensure that if we try to $push something that evaluates to 'missing', no value gets pushed to
     // the resulting array.
-    const res =
-        coll.aggregate([{
+    const res = coll
+        .aggregate([
+            {
                 "$bucketAuto": {
                     "groupBy": "$a",
                     "buckets": 1,
-                    "output": {"array": {"$push": {$getField: {"field": "b", "input": {a: 0}}}}}
-                }
-            }])
+                    "output": {"array": {"$push": {$getField: {"field": "b", "input": {a: 0}}}}},
+                },
+            },
+        ])
         .toArray();
     const expected = [{"_id": {"min": null, "max": null}, "array": []}];
     assert.eq(res, expected, "$bucketAuto with $push does not push any missing values as null.");

jstests/aggregation/accumulators/concat_arrays.js

@@ -9,77 +9,88 @@ assert(coll.drop());
 
 // Test that $concatArrays correctly concatenates arrays, preserves sort order and preserves order
 // of the elements inside the concatenated arrays.
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, author: "Adrian", publisher: "Pub1", books: ["Adrian Book 0", "Adrian Book 1"]},
         {_id: 1, author: "Militsa", publisher: "Pub1", books: ["Militsa Book 0"]},
         {_id: 2, author: "Hana", publisher: "Pub1", books: ["Hana Book 0", "Hana Book 1"]},
-]));
+    ]),
+);
 
-let result = coll.aggregate([
+let result = coll
+    .aggregate([
         {$match: {_id: {$in: [0, 1, 2]}}},
         {$sort: {_id: 1}},
-                     {$group: {_id: null, allBooks: {$concatArrays: '$books'}}}
+        {$group: {_id: null, allBooks: {$concatArrays: "$books"}}},
     ])
     .toArray();
 
-assert.eq(
-    result, [{
+assert.eq(result, [
+    {
         _id: null,
-        allBooks:
-            ["Adrian Book 0", "Adrian Book 1", "Militsa Book 0", "Hana Book 0", "Hana Book 1"]
-    }]);
+        allBooks: ["Adrian Book 0", "Adrian Book 1", "Militsa Book 0", "Hana Book 0", "Hana Book 1"],
+    },
+]);
 
 // Redo the aggregation with the reverse sort to ensure sort order is really preserverd and we're
 // not just looking at the docs in the order they are found in the collection.
-result = coll.aggregate([
+result = coll
+    .aggregate([
         {$match: {_id: {$in: [0, 1, 2]}}},
         {$sort: {_id: -1}},
-                 {$group: {_id: null, allBooks: {$concatArrays: '$books'}}}
+        {$group: {_id: null, allBooks: {$concatArrays: "$books"}}},
     ])
     .toArray();
 
-assert.eq(
-    result, [{
+assert.eq(result, [
+    {
         _id: null,
-        allBooks:
-            ["Hana Book 0", "Hana Book 1", "Militsa Book 0", "Adrian Book 0", "Adrian Book 1"]
-    }]);
+        allBooks: ["Hana Book 0", "Hana Book 1", "Militsa Book 0", "Adrian Book 0", "Adrian Book 1"],
+    },
+]);
 
 // $concatArrays should concatenate arrays, and any nested arrays should remain array values.
-assert.commandWorked(coll.insert({
+assert.commandWorked(
+    coll.insert({
         _id: 3,
         author: "Ben",
         publisher: "Pub2",
-    books:
-        [["Ben Series 0 Book 0", "Ben Series 0 Book 1"], ["Ben Series 1 Book 0"], "Ben Book 4"]
-}));
-result = coll.aggregate([
+        books: [["Ben Series 0 Book 0", "Ben Series 0 Book 1"], ["Ben Series 1 Book 0"], "Ben Book 4"],
+    }),
+);
+result = coll
+    .aggregate([
         {$match: {_id: {$in: [1, 3]}}},
         {$sort: {_id: 1}},
-                 {$group: {_id: null, allBooks: {$concatArrays: '$books'}}}
+        {$group: {_id: null, allBooks: {$concatArrays: "$books"}}},
     ])
     .toArray();
-assert.eq(result, [{
+assert.eq(result, [
+    {
         _id: null,
         allBooks: [
             "Militsa Book 0",
             ["Ben Series 0 Book 0", "Ben Series 0 Book 1"],
             ["Ben Series 1 Book 0"],
-                  "Ben Book 4"
-              ]
-          }]);
+            "Ben Book 4",
+        ],
+    },
+]);
 
 // $concatArrays should 'skip over' documents that do not have field.
 // Importantly, do not create a null element for documents that do not have the referenced field.
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 4, author: "Nick", publisher: "Pub3", books: ["Smile :)"]},
         {_id: 5, author: "Santiago", publisher: "Pub3"},
-    {_id: 6, author: "Matt", publisher: "Pub3", books: ["Happy!"]}
-]));
-result = coll.aggregate([
+        {_id: 6, author: "Matt", publisher: "Pub3", books: ["Happy!"]},
+    ]),
+);
+result = coll
+    .aggregate([
         {$match: {_id: {$in: [4, 5, 6]}}},
         {$sort: {_id: 1}},
-                 {$group: {_id: null, allBooks: {$concatArrays: '$books'}}}
+        {$group: {_id: null, allBooks: {$concatArrays: "$books"}}},
     ])
     .toArray();
 assert.eq(result, [{_id: null, allBooks: ["Smile :)", "Happy!"]}]);
@@ -88,62 +99,74 @@ assert.eq(result, [{_id: null, allBooks: ["Smile :)", "Happy!"]}]);
 const notArrays = [1, "string", {object: "object"}, null];
 
 for (const notAnArray of notArrays) {
-    assert.commandWorked(coll.insert([{
+    assert.commandWorked(
+        coll.insert([
+            {
                 _id: "doesNotMatter",
                 author: "doesNotMatter",
                 publisher: "doesNotMatter",
-        books: notAnArray
-    }]));
+                books: notAnArray,
+            },
+        ]),
+    );
 
-    assertErrorCode(coll,
-                    [{$group: {_id: null, allBooks: {$concatArrays: '$books'}}}],
-                    ErrorCodes.TypeMismatch);
+    assertErrorCode(coll, [{$group: {_id: null, allBooks: {$concatArrays: "$books"}}}], ErrorCodes.TypeMismatch);
 
     assert.commandWorked(coll.deleteOne({_id: "doesNotMatter"}));
 }
 
 // Basic test of $concatArrays with grouping.
-result = coll.aggregate([
+result = coll
+    .aggregate([
         {$match: {_id: {$in: [0, 1, 3]}}},
         {$sort: {_id: 1}},
-                 {$group: {_id: '$publisher', booksByPublisher: {$concatArrays: '$books'}}},
-                 {$sort: {_id: 1}}
+        {$group: {_id: "$publisher", booksByPublisher: {$concatArrays: "$books"}}},
+        {$sort: {_id: 1}},
     ])
     .toArray();
 assert.eq(result, [
     {_id: "Pub1", booksByPublisher: ["Adrian Book 0", "Adrian Book 1", "Militsa Book 0"]},
     {
         _id: "Pub2",
-        booksByPublisher:
-            [["Ben Series 0 Book 0", "Ben Series 0 Book 1"], ["Ben Series 1 Book 0"], "Ben Book 4"]
+        booksByPublisher: [["Ben Series 0 Book 0", "Ben Series 0 Book 1"], ["Ben Series 1 Book 0"], "Ben Book 4"],
     },
 ]);
 
 // $concatArrays dotted field.
 assert(coll.drop());
-assert.commandWorked(coll.insert(
-    [{_id: 1, a: {b: [1, 2, 3]}}, {_id: 2, a: {b: [4, 5, 6]}}, {_id: 3, a: {b: [7, 8, 9]}}]));
-result = coll.aggregate([
-                 {$sort: {_id: 1}},
-                 {$group: {_id: null, nums: {$concatArrays: '$a.b'}}},
-             ])
-             .toArray();
+assert.commandWorked(
+    coll.insert([
+        {_id: 1, a: {b: [1, 2, 3]}},
+        {_id: 2, a: {b: [4, 5, 6]}},
+        {_id: 3, a: {b: [7, 8, 9]}},
+    ]),
+);
+result = coll.aggregate([{$sort: {_id: 1}}, {$group: {_id: null, nums: {$concatArrays: "$a.b"}}}]).toArray();
 assert.eq(result, [{_id: null, nums: [1, 2, 3, 4, 5, 6, 7, 8, 9]}]);
 assert(coll.drop());
 
 // $concatArrays dotted field, array halfway on path.
 assert(coll.drop());
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 1, a: [{b: [1, 2, 3]}, {b: [4, 5, 6]}]},
         {_id: 2, a: [{b: [7, 8, 9]}, {b: [10, 11, 12]}]},
-    {_id: 3, a: [{b: [7, 8, 9]}]}
-]));
-result = coll.aggregate([
-                 {$sort: {_id: 1}},
-                 {$group: {_id: null, nums: {$concatArrays: '$a.b'}}},
-             ])
-             .toArray();
-assert.eq(result, [{_id: null, nums: [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12], [7, 8, 9]]}]);
+        {_id: 3, a: [{b: [7, 8, 9]}]},
+    ]),
+);
+result = coll.aggregate([{$sort: {_id: 1}}, {$group: {_id: null, nums: {$concatArrays: "$a.b"}}}]).toArray();
+assert.eq(result, [
+    {
+        _id: null,
+        nums: [
+            [1, 2, 3],
+            [4, 5, 6],
+            [7, 8, 9],
+            [10, 11, 12],
+            [7, 8, 9],
+        ],
+    },
+]);
 assert(coll.drop());
 
 // Basic correctness test for $concatArrays used in $bucket (see bucketAuto_concatArrays.js for
@@ -157,16 +180,20 @@ for (let i = 0; i < 10; i++) {
 }
 coll.insertMany(docs);
 
-result = coll.aggregate([
+result = coll
+    .aggregate([
         {$sort: {_id: 1}},
         {
             $bucket: {
-                         groupBy: '$_id',
+                groupBy: "$_id",
                 boundaries: [0, 5, 10],
-                         output: {nums: {$concatArrays: "$arr"}}
-                     }
-                 }
+                output: {nums: {$concatArrays: "$arr"}},
+            },
+        },
     ])
     .toArray();
-assert.eq(result, [{"_id": 0, "nums": [0, 1, 2, 3, 4]}, {"_id": 5, "nums": [5, 6, 7, 8, 9]}]);
+assert.eq(result, [
+    {"_id": 0, "nums": [0, 1, 2, 3, 4]},
+    {"_id": 5, "nums": [5, 6, 7, 8, 9]},
+]);
 assert(coll.drop());

jstests/aggregation/accumulators/concat_arrays_spill_to_disk.js

@@ -21,18 +21,18 @@ assert.gt(coll.stats().size, memoryLimitMB * 1024 * 1024);
 
 // Test accumulating all values into one array. On debug builds we will spill to disk for $group and
 // so may hit the group error code before we hit ExceededMemoryLimit.
-const pipeline =
-    [{$sort: {sortKey: 1}}, {$group: {_id: null, bigArray: {$concatArrays: '$bigArr'}}}];
-const expectedCodes =
-    [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.ExceededMemoryLimit];
+const pipeline = [{$sort: {sortKey: 1}}, {$group: {_id: null, bigArray: {$concatArrays: "$bigArr"}}}];
+const expectedCodes = [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.ExceededMemoryLimit];
 
 // Test that 'allowDiskUse: false' does indeed prevent spilling to disk.
 assert.commandFailedWithCode(
     db.runCommand({aggregate: coll.getName(), pipeline: pipeline, cursor: {}, allowDiskUse: false}),
-    expectedCodes);
+    expectedCodes,
+);
 
 // The $concatArrays accumulator does not support spilling to disk, so ensure that it will fail even
 // when disk use is allowed.
 assert.commandFailedWithCode(
     db.runCommand({aggregate: coll.getName(), pipeline: pipeline, cursor: {}, allowDiskUse: true}),
-    expectedCodes);
+    expectedCodes,
+);

jstests/aggregation/accumulators/first_last.js

@@ -14,12 +14,15 @@ let docId = 0;
 const kMaxSales = 20;
 let expectedFirstSales = [];
 let expectedLastSales = [];
-for (const states
-         of [{state: 'AZ', sales: 3}, {state: 'CA', sales: 2}, {state: 'NY', sales: kMaxSales}]) {
+for (const states of [
+    {state: "AZ", sales: 3},
+    {state: "CA", sales: 2},
+    {state: "NY", sales: kMaxSales},
+]) {
     let firstSales;
     let lastSales;
-    const state = states['state'];
-    const sales = states['sales'];
+    const state = states["state"];
+    const sales = states["sales"];
     for (let i = 0; i < kMaxSales && i < sales; ++i) {
         const salesAmt = i * 10;
         docs.push({_id: docId++, state: state, sales: salesAmt, stateObj: {"st": state}, n: 3});
@@ -36,51 +39,53 @@ for (const states
 
 assert.commandWorked(coll.insert(docs));
 
-{  // Test $first when grouping by a string.
-    const actualResults = coll.aggregate([
-                                  {$sort: {_id: 1}},
-                                  {$group: {_id: '$state', sales: {$first: "$sales"}}},
-                              ])
+{
+    // Test $first when grouping by a string.
+    const actualResults = coll
+        .aggregate([{$sort: {_id: 1}}, {$group: {_id: "$state", sales: {$first: "$sales"}}}])
         .toArray();
 
-    assert(arrayEq(expectedFirstSales, actualResults),
-           () => "expected " + tojson(expectedFirstSales) + " actual " + tojson(actualResults));
+    assert(
+        arrayEq(expectedFirstSales, actualResults),
+        () => "expected " + tojson(expectedFirstSales) + " actual " + tojson(actualResults),
+    );
 }
 
-{  // Test $first when grouping by an object.
-    const actualResults = coll.aggregate([
-                                  {$sort: {_id: 1}},
-                                  {$group: {_id: "$stateObj", sales: {$first: "$sales"}}},
-                              ])
+{
+    // Test $first when grouping by an object.
+    const actualResults = coll
+        .aggregate([{$sort: {_id: 1}}, {$group: {_id: "$stateObj", sales: {$first: "$sales"}}}])
         .toArray();
 
-    const expectedResult =
-        expectedFirstSales.map(doc => ({'_id': {'st': doc['_id']}, sales: doc['sales']}));
-    assert(arrayEq(expectedResult, actualResults),
-           () => "expected " + tojson(expectedResult) + " actual " + tojson(actualResults));
+    const expectedResult = expectedFirstSales.map((doc) => ({"_id": {"st": doc["_id"]}, sales: doc["sales"]}));
+    assert(
+        arrayEq(expectedResult, actualResults),
+        () => "expected " + tojson(expectedResult) + " actual " + tojson(actualResults),
+    );
 }
 
-{  // Test $last when grouping by a string.
-    const actualResults = coll.aggregate([
-                                  {$sort: {_id: 1}},
-                                  {$group: {_id: '$state', sales: {$last: "$sales"}}},
-                              ])
+{
+    // Test $last when grouping by a string.
+    const actualResults = coll
+        .aggregate([{$sort: {_id: 1}}, {$group: {_id: "$state", sales: {$last: "$sales"}}}])
         .toArray();
-    assert(arrayEq(expectedLastSales, actualResults),
-           () => "expected " + tojson(expectedLastSales) + " actual " + tojson(actualResults));
+    assert(
+        arrayEq(expectedLastSales, actualResults),
+        () => "expected " + tojson(expectedLastSales) + " actual " + tojson(actualResults),
+    );
 }
 
-{  // Test $last when grouping by an object.
-    const actualResults = coll.aggregate([
-                                  {$sort: {_id: 1}},
-                                  {$group: {_id: "$stateObj", sales: {$last: "$sales"}}},
-                              ])
+{
+    // Test $last when grouping by an object.
+    const actualResults = coll
+        .aggregate([{$sort: {_id: 1}}, {$group: {_id: "$stateObj", sales: {$last: "$sales"}}}])
         .toArray();
 
-    const expectedResult =
-        expectedLastSales.map(doc => ({'_id': {'st': doc['_id']}, sales: doc['sales']}));
-    assert(arrayEq(expectedResult, actualResults),
-           () => "expected " + tojson(expectedResult) + " actual " + tojson(actualResults));
+    const expectedResult = expectedLastSales.map((doc) => ({"_id": {"st": doc["_id"]}, sales: doc["sales"]}));
+    assert(
+        arrayEq(expectedResult, actualResults),
+        () => "expected " + tojson(expectedResult) + " actual " + tojson(actualResults),
+    );
 }
 
 // Basic correctness test for $first/$last used in $bucketAuto. Though $bucketAuto uses
@@ -90,59 +95,61 @@ assert.commandWorked(coll.insert(docs));
 // buckets than groups, it will always be the case that the min value of each bucket
 // corresponds to the group key).
 
-{  // Test $first in $bucketAuto.
-    let actualResults =
-        coll.aggregate([
+{
+    // Test $first in $bucketAuto.
+    let actualResults = coll
+        .aggregate([
             {$sort: {sales: 1}},
-                {$bucketAuto: {groupBy: '$state', buckets: 1, output: {sales: {$first: "$sales"}}}},
-                {$project: {_id: "$_id.min", sales: 1}}
+            {$bucketAuto: {groupBy: "$state", buckets: 1, output: {sales: {$first: "$sales"}}}},
+            {$project: {_id: "$_id.min", sales: 1}},
         ])
         .toArray();
-    const expectedResults = [{_id: 'AZ', sales: 0}];
-    assert(orderedArrayEq(expectedResults, actualResults),
-           () => "expected " + tojson(expectedResults) + " actual " + tojson(actualResults));
+    const expectedResults = [{_id: "AZ", sales: 0}];
+    assert(
+        orderedArrayEq(expectedResults, actualResults),
+        () => "expected " + tojson(expectedResults) + " actual " + tojson(actualResults),
+    );
 }
 
-{  // Test $last in $bucketAuto.
-    let actualResults =
-        coll.aggregate([
+{
+    // Test $last in $bucketAuto.
+    let actualResults = coll
+        .aggregate([
             {$sort: {sales: 1}},
-                {$bucketAuto: {groupBy: '$state', buckets: 1, output: {sales: {$last: "$sales"}}}},
-                {$project: {_id: "$_id.min", sales: 1}}
+            {$bucketAuto: {groupBy: "$state", buckets: 1, output: {sales: {$last: "$sales"}}}},
+            {$project: {_id: "$_id.min", sales: 1}},
         ])
         .toArray();
-    const expectedResults = [{_id: 'AZ', sales: 190}];
-    assert(orderedArrayEq(expectedResults, actualResults),
-           () => "expected " + tojson(expectedResults) + " actual " + tojson(actualResults));
+    const expectedResults = [{_id: "AZ", sales: 190}];
+    assert(
+        orderedArrayEq(expectedResults, actualResults),
+        () => "expected " + tojson(expectedResults) + " actual " + tojson(actualResults),
+    );
 }
 
 // Verify that an index on {_id: 1, sales: -1} will produce the expected results.
 const idxSpec = {
     _id: 1,
-    sales: -1
+    sales: -1,
 };
 assert.commandWorked(coll.createIndex(idxSpec));
 
-{  // Test $first with index.
-    const actualResults = coll.aggregate(
-                                  [
-                                      {$sort: {_id: 1}},
-                                      {$group: {_id: '$state', sales: {$first: "$sales"}}},
-                                      {$sort: {_id: 1}},
-                                  ],
-                                  {hint: idxSpec})
+{
+    // Test $first with index.
+    const actualResults = coll
+        .aggregate([{$sort: {_id: 1}}, {$group: {_id: "$state", sales: {$first: "$sales"}}}, {$sort: {_id: 1}}], {
+            hint: idxSpec,
+        })
         .toArray();
     assert.eq(expectedFirstSales, actualResults);
 }
 
-{  // Test $last with index.
-    const actualResults = coll.aggregate(
-                                  [
-                                      {$sort: {_id: 1}},
-                                      {$group: {_id: '$state', sales: {$last: "$sales"}}},
-                                      {$sort: {_id: 1}},
-                                  ],
-                                  {hint: idxSpec})
+{
+    // Test $last with index.
+    const actualResults = coll
+        .aggregate([{$sort: {_id: 1}}, {$group: {_id: "$state", sales: {$last: "$sales"}}}, {$sort: {_id: 1}}], {
+            hint: idxSpec,
+        })
         .toArray();
     assert.eq(expectedLastSales, actualResults);
 }

jstests/aggregation/accumulators/first_n_last_n.js

@@ -8,8 +8,7 @@ import {arrayEq} from "jstests/aggregation/extras/utils.js";
 const coll = db[jsTestName()];
 coll.drop();
 
-const largestInt =
-    NumberDecimal("9223372036854775807");  // This is max int64 which is supported as N.
+const largestInt = NumberDecimal("9223372036854775807"); // This is max int64 which is supported as N.
 const largestIntPlus1 = NumberDecimal("9223372036854775808"); // Adding 1 puts it over the edge.
 
 // Basic correctness tests.
@@ -22,15 +21,18 @@ let expectedLastThree = [];
 let expectedAllResults = [];
 let expectedFirstNWithInitExpr = [];
 let expectedLastNWithInitExpr = [];
-for (const states
-         of [{state: 'AZ', sales: 3}, {state: 'CA', sales: 2}, {state: 'NY', sales: kMaxSales}]) {
+for (const states of [
+    {state: "AZ", sales: 3},
+    {state: "CA", sales: 2},
+    {state: "NY", sales: kMaxSales},
+]) {
     let allResults = [];
     let firstThree = [];
     let lastThree = [];
     let firstWithInitExpr = [];
     let lastWithInitExpr = [];
-    const state = states['state'];
-    const sales = states['sales'];
+    const state = states["state"];
+    const sales = states["sales"];
     for (let i = 0; i < kMaxSales; ++i) {
         const salesAmt = i * 10;
         if (i < sales) {
@@ -45,10 +47,10 @@ for (const states
                 lastThree.push(salesAmt);
             }
 
-            if (i == 0 || (state == 'AZ' && i < defaultN)) {
+            if (i == 0 || (state == "AZ" && i < defaultN)) {
                 firstWithInitExpr.push(salesAmt);
             }
-            if (i + 1 == sales || (state == 'AZ' && i + defaultN >= sales)) {
+            if (i + 1 == sales || (state == "AZ" && i + defaultN >= sales)) {
                 lastWithInitExpr.push(salesAmt);
             }
             allResults.push(salesAmt);
@@ -64,22 +66,20 @@ for (const states
 assert.commandWorked(coll.insert(docs));
 
 function runFirstLastN(n, expectedFirstNResults, expectedLastNResults) {
-    const actualFirstNResults =
-        coll.aggregate([
-                {$sort: {_id: 1}},
-                {$group: {_id: '$state', sales: {$firstN: {input: "$sales", n: n}}}},
-            ])
+    const actualFirstNResults = coll
+        .aggregate([{$sort: {_id: 1}}, {$group: {_id: "$state", sales: {$firstN: {input: "$sales", n: n}}}}])
         .toArray();
 
     // As these are unordered operators, we need to ensure we can deterministically test the values
     // returned by firstN/lastN. As the output is not guaranteed to be in order, arrayEq is used
     // instead.
-    assert(arrayEq(expectedFirstNResults, actualFirstNResults),
-           () => "expected " + tojson(expectedFirstNResults) + " actual " +
-               tojson(actualFirstNResults));
+    assert(
+        arrayEq(expectedFirstNResults, actualFirstNResults),
+        () => "expected " + tojson(expectedFirstNResults) + " actual " + tojson(actualFirstNResults),
+    );
 
-    const firstNResultsWithInitExpr =
-        coll.aggregate([
+    const firstNResultsWithInitExpr = coll
+        .aggregate([
             {$sort: {_id: 1}},
             {
                 $group: {
@@ -87,23 +87,23 @@ function runFirstLastN(n, expectedFirstNResults, expectedLastNResults) {
                     sales: {
                         $firstN: {
                             input: "$sales",
-                                n: {$cond: {if: {$eq: ["$st", 'AZ']}, then: defaultN, else: 1}}
-                            }
-                        }
-                    }
+                            n: {$cond: {if: {$eq: ["$st", "AZ"]}, then: defaultN, else: 1}},
+                        },
+                    },
+                },
             },
         ])
         .toArray();
 
     let expectedResult = [];
-    expectedFirstNWithInitExpr.forEach(
-        i => expectedResult.push({'_id': {'st': i['_id']}, sales: i['sales']}));
-    assert(arrayEq(expectedResult, firstNResultsWithInitExpr),
-           () => "expected " + tojson(expectedResult) + " actual " +
-               tojson(firstNResultsWithInitExpr));
+    expectedFirstNWithInitExpr.forEach((i) => expectedResult.push({"_id": {"st": i["_id"]}, sales: i["sales"]}));
+    assert(
+        arrayEq(expectedResult, firstNResultsWithInitExpr),
+        () => "expected " + tojson(expectedResult) + " actual " + tojson(firstNResultsWithInitExpr),
+    );
 
-    const firstNResultsWithInitExprAndVariableGroupId =
-        coll.aggregate([
+    const firstNResultsWithInitExprAndVariableGroupId = coll
+        .aggregate([
             {$sort: {_id: 1}},
             {
                 $group: {
@@ -111,33 +111,31 @@ function runFirstLastN(n, expectedFirstNResults, expectedLastNResults) {
                     sales: {
                         $firstN: {
                             input: "$sales",
-                                n: {$cond: {if: {$eq: ["$st", 'AZ']}, then: defaultN, else: 1}}
-                            }
-                        }
-                    }
+                            n: {$cond: {if: {$eq: ["$st", "AZ"]}, then: defaultN, else: 1}},
+                        },
+                    },
+                },
             },
         ])
         .toArray();
 
     expectedResult = [];
-    expectedFirstNWithInitExpr.forEach(
-        i => expectedResult.push({'_id': {'st': i['_id']}, sales: i['sales']}));
-    assert(arrayEq(expectedResult, firstNResultsWithInitExprAndVariableGroupId),
-           () => "expected " + tojson(expectedResult) + " actual " +
-               tojson(firstNResultsWithInitExprAndVariableGroupId));
+    expectedFirstNWithInitExpr.forEach((i) => expectedResult.push({"_id": {"st": i["_id"]}, sales: i["sales"]}));
+    assert(
+        arrayEq(expectedResult, firstNResultsWithInitExprAndVariableGroupId),
+        () => "expected " + tojson(expectedResult) + " actual " + tojson(firstNResultsWithInitExprAndVariableGroupId),
+    );
 
-    const actualLastNResults =
-        coll.aggregate([
-                {$sort: {_id: 1}},
-                {$group: {_id: '$state', sales: {$lastN: {input: "$sales", n: n}}}},
-            ])
+    const actualLastNResults = coll
+        .aggregate([{$sort: {_id: 1}}, {$group: {_id: "$state", sales: {$lastN: {input: "$sales", n: n}}}}])
         .toArray();
     assert(
         arrayEq(expectedLastNResults, actualLastNResults),
-        () => "expected " + tojson(expectedLastNResults) + " actual " + tojson(actualLastNResults));
+        () => "expected " + tojson(expectedLastNResults) + " actual " + tojson(actualLastNResults),
+    );
 
-    const lastNResultsWithInitExpr =
-        coll.aggregate([
+    const lastNResultsWithInitExpr = coll
+        .aggregate([
             {$sort: {_id: 1}},
             {
                 $group: {
@@ -145,23 +143,23 @@ function runFirstLastN(n, expectedFirstNResults, expectedLastNResults) {
                     sales: {
                         $lastN: {
                             input: "$sales",
-                                n: {$cond: {if: {$eq: ["$st", 'AZ']}, then: defaultN, else: 1}}
-                            }
-                        }
-                    }
+                            n: {$cond: {if: {$eq: ["$st", "AZ"]}, then: defaultN, else: 1}},
+                        },
+                    },
+                },
             },
         ])
         .toArray();
 
     expectedResult = [];
-    expectedLastNWithInitExpr.forEach(
-        i => expectedResult.push({'_id': {'st': i['_id']}, sales: i['sales']}));
+    expectedLastNWithInitExpr.forEach((i) => expectedResult.push({"_id": {"st": i["_id"]}, sales: i["sales"]}));
     assert(
         arrayEq(expectedResult, lastNResultsWithInitExpr),
-        () => "expected " + tojson(expectedResult) + " actual " + tojson(lastNResultsWithInitExpr));
+        () => "expected " + tojson(expectedResult) + " actual " + tojson(lastNResultsWithInitExpr),
+    );
 
-    const lastNResultsWithInitExprAndVariableGroupId =
-        coll.aggregate([
+    const lastNResultsWithInitExprAndVariableGroupId = coll
+        .aggregate([
             {$sort: {_id: 1}},
             {
                 $group: {
@@ -169,20 +167,20 @@ function runFirstLastN(n, expectedFirstNResults, expectedLastNResults) {
                     sales: {
                         $lastN: {
                             input: "$sales",
-                                n: {$cond: {if: {$eq: ["$st", 'AZ']}, then: defaultN, else: 1}}
-                            }
-                        }
-                    }
+                            n: {$cond: {if: {$eq: ["$st", "AZ"]}, then: defaultN, else: 1}},
+                        },
+                    },
+                },
             },
         ])
         .toArray();
 
     expectedResult = [];
-    expectedLastNWithInitExpr.forEach(
-        i => expectedResult.push({'_id': {'st': i['_id']}, sales: i['sales']}));
-    assert(arrayEq(expectedResult, lastNResultsWithInitExprAndVariableGroupId),
-           () => "expected " + tojson(expectedResult) + " actual " +
-               tojson(lastNResultsWithInitExprAndVariableGroupId));
+    expectedLastNWithInitExpr.forEach((i) => expectedResult.push({"_id": {"st": i["_id"]}, sales: i["sales"]}));
+    assert(
+        arrayEq(expectedResult, lastNResultsWithInitExprAndVariableGroupId),
+        () => "expected " + tojson(expectedResult) + " actual " + tojson(lastNResultsWithInitExprAndVariableGroupId),
+    );
 
     function reorderBucketResults(bucketResults) {
         // Using a computed projection will put the fields out of order. As such, we re-order them
@@ -199,66 +197,66 @@ function runFirstLastN(n, expectedFirstNResults, expectedLastNResults) {
     // to compare the $bucketAuto results to the expected $group results (because there are more
     // buckets than groups, it will always be the case that the min value of each bucket
     // corresponds to the group key).
-    let actualFirstNBucketAutoResults =
-        coll.aggregate([
+    let actualFirstNBucketAutoResults = coll
+        .aggregate([
             {$sort: {state: 1, sales: 1}},
             {
                 $bucketAuto: {
-                        groupBy: '$state',
+                    groupBy: "$state",
                     buckets: 10 * 1000,
-                        output: {sales: {$firstN: {input: "$sales", n: n}}}
-                    }
+                    output: {sales: {$firstN: {input: "$sales", n: n}}},
                 },
-                {$project: {_id: "$_id.min", sales: 1}}
+            },
+            {$project: {_id: "$_id.min", sales: 1}},
         ])
         .toArray();
 
     reorderBucketResults(actualFirstNBucketAutoResults);
-    assert(arrayEq(expectedFirstNResults, actualFirstNBucketAutoResults),
-           () => "expected " + tojson(expectedFirstNResults) + " actual " +
-               tojson(actualFirstNBucketAutoResults));
+    assert(
+        arrayEq(expectedFirstNResults, actualFirstNBucketAutoResults),
+        () => "expected " + tojson(expectedFirstNResults) + " actual " + tojson(actualFirstNBucketAutoResults),
+    );
 
-    let actualLastNBucketAutoResults =
-        coll.aggregate([
+    let actualLastNBucketAutoResults = coll
+        .aggregate([
             {$sort: {state: 1, sales: 1}},
             {
                 $bucketAuto: {
-                        groupBy: '$state',
+                    groupBy: "$state",
                     buckets: 10 * 1000,
-                        output: {sales: {$lastN: {input: "$sales", n: n}}}
-                    }
+                    output: {sales: {$lastN: {input: "$sales", n: n}}},
                 },
-                {$project: {_id: "$_id.min", sales: 1}}
+            },
+            {$project: {_id: "$_id.min", sales: 1}},
         ])
         .toArray();
     reorderBucketResults(actualLastNBucketAutoResults);
-    assert(arrayEq(expectedLastNResults, actualLastNBucketAutoResults),
-           () => "expected " + tojson(expectedLastNResults) + " actual " +
-               tojson(actualLastNBucketAutoResults));
+    assert(
+        arrayEq(expectedLastNResults, actualLastNBucketAutoResults),
+        () => "expected " + tojson(expectedLastNResults) + " actual " + tojson(actualLastNBucketAutoResults),
+    );
 
     // Verify that an index on {_id: 1, sales: -1} will produce the expected results.
     const idxSpec = {_id: 1, sales: -1};
     assert.commandWorked(coll.createIndex(idxSpec));
 
-    const indexedFirstNResults =
-        coll.aggregate(
+    const indexedFirstNResults = coll
+        .aggregate(
             [
                 {$sort: {_id: 1}},
-                    {$group: {_id: '$state', sales: {$firstN: {input: "$sales", n: n}}}},
+                {$group: {_id: "$state", sales: {$firstN: {input: "$sales", n: n}}}},
                 {$sort: {_id: 1}},
             ],
-                {hint: idxSpec})
+            {hint: idxSpec},
+        )
         .toArray();
     assert.eq(expectedFirstNResults, indexedFirstNResults);
 
-    const indexedLastNResults =
-        coll.aggregate(
-                [
-                    {$sort: {_id: 1}},
-                    {$group: {_id: '$state', sales: {$lastN: {input: "$sales", n: n}}}},
-                    {$sort: {_id: 1}},
-                ],
-                {hint: idxSpec})
+    const indexedLastNResults = coll
+        .aggregate(
+            [{$sort: {_id: 1}}, {$group: {_id: "$state", sales: {$lastN: {input: "$sales", n: n}}}}, {$sort: {_id: 1}}],
+            {hint: idxSpec},
+        )
         .toArray();
     assert.eq(expectedLastNResults, indexedLastNResults);
 }
@@ -269,56 +267,67 @@ runFirstLastN(defaultN, expectedFirstThree, expectedLastThree);
 runFirstLastN(largestInt, expectedAllResults, expectedAllResults);
 
 // Reject non-integral values of n.
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{$group: {_id: {'st': '$state'}, sales: {$firstN: {input: '$sales', n: 'string'}}}}],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, sales: {$firstN: {input: "$sales", n: "string"}}}}],
+        cursor: {},
     }),
-                             5787902);
+    5787902,
+);
 
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{$group: {_id: {'st': '$state'}, sales: {$firstN: {input: '$sales', n: 3.2}}}}],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, sales: {$firstN: {input: "$sales", n: 3.2}}}}],
+        cursor: {},
     }),
-                             5787903);
+    5787903,
+);
 
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{$group: {_id: {'st': '$state'}, sales: {$firstN: {input: '$sales', n: -1}}}}],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, sales: {$firstN: {input: "$sales", n: -1}}}}],
+        cursor: {},
     }),
-                             5787908);
+    5787908,
+);
 
 // Verify that 'n' cannot be greater than the largest signed 64 bit int.
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [
-        {$group: {_id: {'st': '$state'}, sales: {$firstN: {input: '$sales', n: largestIntPlus1}}}}
-    ],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, sales: {$firstN: {input: "$sales", n: largestIntPlus1}}}}],
+        cursor: {},
     }),
-                             5787903);
+    5787903,
+);
 
 // Reject invalid specifications.
 
 // Extra fields
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [
+            {
                 $group: {
-            _id: {'st': '$state'},
-            sales: {$firstN: {input: '$sales', n: 2, randomField: "randomArg"}}
-        }
-    }],
-    cursor: {}
+                    _id: {"st": "$state"},
+                    sales: {$firstN: {input: "$sales", n: 2, randomField: "randomArg"}},
+                },
+            },
+        ],
+        cursor: {},
     }),
-                             5787901);
+    5787901,
+);
 
 // Missing arguments.
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{$group: {_id: {'st': '$state'}, sales: {$firstN: {input: '$sales'}}}}],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, sales: {$firstN: {input: "$sales"}}}}],
+        cursor: {},
     }),
-                             5787906);
+    5787906,
+);
 
 assert.commandFailedWithCode(
-    coll.runCommand(
-        "aggregate",
-        {pipeline: [{$group: {_id: {'st': '$state'}, sales: {$firstN: {n: 2}}}}], cursor: {}}),
-    5787907);
+    coll.runCommand("aggregate", {pipeline: [{$group: {_id: {"st": "$state"}, sales: {$firstN: {n: 2}}}}], cursor: {}}),
+    5787907,
+);

jstests/aggregation/accumulators/group_doing_merge.js

@@ -22,24 +22,28 @@ const docs = [
 assert.commandWorked(coll.insertMany(docs));
 
 function assertTypeMismatch(aggFunction, aggFunctionArgument) {
-    const pipeline = [{
+    const pipeline = [
+        {
             $group: {
                 _id: "$groupKey",
                 agg: {[aggFunction]: aggFunctionArgument},
                 $doingMerge: true,
-        }
-    }];
+            },
+        },
+    ];
     assertErrCodeAndErrMsgContains(coll, pipeline, 9961600, aggFunction);
 }
 
 function assertNoError(aggFunction, aggFunctionArgument) {
-    const pipeline = [{
+    const pipeline = [
+        {
             $group: {
                 _id: "$groupKey",
                 agg: {[aggFunction]: aggFunctionArgument},
                 $doingMerge: true,
-        }
-    }];
+            },
+        },
+    ];
     assert.eq(coll.aggregate(pipeline).toArray().length, 2);
 }
 

jstests/aggregation/accumulators/group_doing_merge_array.js

@@ -28,13 +28,15 @@ const docs = [
 assert.commandWorked(coll.insertMany(docs));
 
 function assertNoError(aggFunction, aggFunctionArgument) {
-    const pipeline = [{
+    const pipeline = [
+        {
             $group: {
                 _id: "$groupKey",
                 agg: {[aggFunction]: aggFunctionArgument},
                 $doingMerge: true,
-        }
-    }];
+            },
+        },
+    ];
     assert.eq(coll.aggregate(pipeline).toArray().length, 2);
 }
 

jstests/aggregation/accumulators/internal_js_reduce.js

@@ -17,23 +17,25 @@ function reduce(key, values) {
     return Array.sum(values);
 }
 
-let groupPipe = [{
+let groupPipe = [
+    {
         $group: {
             _id: "$word",
             wordCount: {
                 $_internalJsReduce: {
                     data: {k: "$word", v: "$val"},
                     eval: reduce,
-            }
-        }
-    }
-}];
+                },
+            },
+        },
+    },
+];
 
 let command = {
-    aggregate: 'js_reduce',
+    aggregate: "js_reduce",
     cursor: {},
     pipeline: groupPipe,
-    allowDiskUse: true  // Set allowDiskUse to true to force the expression to run on a shard in the
+    allowDiskUse: true, // Set allowDiskUse to true to force the expression to run on a shard in the
     // passthrough suites, where javascript execution is supported.
 };
 
@@ -100,17 +102,17 @@ assert.commandFailedWithCode(db.runCommand(command), 31242);
 
 groupPipe[0].$group.wordCount.$_internalJsReduce = {
     notEval: 1,
-    notData: 1
+    notData: 1,
 };
 assert.commandFailedWithCode(db.runCommand(command), 31243);
 
 groupPipe[0].$group.wordCount.$_internalJsReduce = {
     eval: reduce,
-    data: {v: 1}
+    data: {v: 1},
 };
 assert.commandFailedWithCode(db.runCommand(command), 31251);
 groupPipe[0].$group.wordCount.$_internalJsReduce.data = {
     key: 1,
-    value: 1
+    value: 1,
 };
 assert.commandFailedWithCode(db.runCommand(command), 31251);

jstests/aggregation/accumulators/internal_js_reduce_with_scope.js

@@ -27,19 +27,20 @@ function reduce(key, values) {
 const command = {
     aggregate: coll.getName(),
     cursor: {},
-    runtimeConstants:
-        {localNow: new Date(), clusterTime: new Timestamp(0, 0), jsScope: {modulus: modulus}},
-    pipeline: [{
+    runtimeConstants: {localNow: new Date(), clusterTime: new Timestamp(0, 0), jsScope: {modulus: modulus}},
+    pipeline: [
+        {
             $group: {
                 _id: "$word",
                 wordCountMod: {
                     $_internalJsReduce: {
                         data: {k: "$word", v: "$val"},
                         eval: reduce,
-                }
-            }
-        }
-    }],
+                    },
+                },
+            },
+        },
+    ],
     fromRouter: true,
 };
 

jstests/aggregation/accumulators/median_approx.js

@@ -5,10 +5,7 @@
  *   requires_fcv_70,
  * ]
  */
-import {
-    testWithMultipleGroupsMedian,
-    testWithSingleGroupMedian
-} from "jstests/aggregation/libs/percentiles_util.js";
+import {testWithMultipleGroupsMedian, testWithSingleGroupMedian} from "jstests/aggregation/libs/percentiles_util.js";
 
 const coll = db[jsTestName()];
 
@@ -23,7 +20,7 @@ testWithSingleGroupMedian({
     docs: [{x: 0}, {x: "non-numeric"}, {x: 1}, {no_x: 0}, {x: 2}],
     medianSpec: {$median: {input: "$x", method: "approximate"}},
     expectedResult: 1,
-    msg: "Non-numeric data should be ignored"
+    msg: "Non-numeric data should be ignored",
 });
 
 testWithSingleGroupMedian({
@@ -31,7 +28,7 @@ testWithSingleGroupMedian({
     docs: [{x: "non-numeric"}, {non_x: 1}],
     medianSpec: {$median: {input: "$x", method: "approximate"}},
     expectedResult: null,
-    msg: "Median of completely non-numeric data."
+    msg: "Median of completely non-numeric data.",
 });
 
 /**
@@ -42,5 +39,5 @@ testWithMultipleGroupsMedian({
     docs: [{k: 0, x: 2}, {k: 0, x: 1}, {k: 1, x: 2}, {k: 2}, {k: 0, x: "str"}, {k: 1, x: 0}],
     medianSpec: {$median: {input: "$x", method: "approximate"}},
     expectedResult: [/* k:0 */ 1, /* k:1 */ 0, /* k:2 */ null],
-    msg: "Median of multiple groups"
+    msg: "Median of multiple groups",
 });

jstests/aggregation/accumulators/median_continuous.js

@@ -6,10 +6,7 @@
  *   featureFlagAccuratePercentiles
  * ]
  */
-import {
-    testWithMultipleGroupsMedian,
-    testWithSingleGroupMedian
-} from "jstests/aggregation/libs/percentiles_util.js";
+import {testWithMultipleGroupsMedian, testWithSingleGroupMedian} from "jstests/aggregation/libs/percentiles_util.js";
 
 const coll = db[jsTestName()];
 
@@ -24,7 +21,7 @@ testWithSingleGroupMedian({
     docs: [{x: 0}, {x: 2}],
     medianSpec: {$median: {input: "$x", method: "continuous"}},
     expectedResult: 1,
-    msg: "Continuous interpolation should allow result not in original dataset"
+    msg: "Continuous interpolation should allow result not in original dataset",
 });
 
 testWithSingleGroupMedian({
@@ -32,7 +29,7 @@ testWithSingleGroupMedian({
     docs: [{x: 0}, {x: "non-numeric"}, {x: 1}, {no_x: 0}, {x: 2}],
     medianSpec: {$median: {input: "$x", method: "continuous"}},
     expectedResult: 1,
-    msg: "Non-numeric data should be ignored"
+    msg: "Non-numeric data should be ignored",
 });
 
 testWithSingleGroupMedian({
@@ -40,7 +37,7 @@ testWithSingleGroupMedian({
     docs: [{x: "non-numeric"}, {non_x: 1}],
     medianSpec: {$median: {input: "$x", method: "continuous"}},
     expectedResult: null,
-    msg: "Median of completely non-numeric data."
+    msg: "Median of completely non-numeric data.",
 });
 
 /**
@@ -51,5 +48,5 @@ testWithMultipleGroupsMedian({
     docs: [{k: 0, x: 2}, {k: 0, x: 1}, {k: 1, x: 2}, {k: 2}, {k: 0, x: "str"}, {k: 1, x: 0}],
     medianSpec: {$median: {input: "$x", method: "continuous"}},
     expectedResult: [/* k:0 */ 1.5, /* k:1 */ 1, /* k:2 */ null],
-    msg: "Median of multiple groups"
+    msg: "Median of multiple groups",
 });

jstests/aggregation/accumulators/median_discrete.js

@@ -6,10 +6,7 @@
  *   featureFlagAccuratePercentiles
  * ]
  */
-import {
-    testWithMultipleGroupsMedian,
-    testWithSingleGroupMedian
-} from "jstests/aggregation/libs/percentiles_util.js";
+import {testWithMultipleGroupsMedian, testWithSingleGroupMedian} from "jstests/aggregation/libs/percentiles_util.js";
 
 const coll = db[jsTestName()];
 
@@ -24,7 +21,7 @@ testWithSingleGroupMedian({
     docs: [{x: 0}, {x: "non-numeric"}, {x: 1}, {no_x: 0}, {x: 2}],
     medianSpec: {$median: {input: "$x", method: "discrete"}},
     expectedResult: 1,
-    msg: "Non-numeric data should be ignored"
+    msg: "Non-numeric data should be ignored",
 });
 
 testWithSingleGroupMedian({
@@ -32,7 +29,7 @@ testWithSingleGroupMedian({
     docs: [{x: "non-numeric"}, {non_x: 1}],
     medianSpec: {$median: {input: "$x", method: "discrete"}},
     expectedResult: null,
-    msg: "Median of completely non-numeric data."
+    msg: "Median of completely non-numeric data.",
 });
 
 /**
@@ -43,5 +40,5 @@ testWithMultipleGroupsMedian({
     docs: [{k: 0, x: 2}, {k: 0, x: 1}, {k: 1, x: 2}, {k: 2}, {k: 0, x: "str"}, {k: 1, x: 0}],
     medianSpec: {$median: {input: "$x", method: "discrete"}},
     expectedResult: [/* k:0 */ 1, /* k:1 */ 0, /* k:2 */ null],
-    msg: "Median of multiple groups"
+    msg: "Median of multiple groups",
 });

jstests/aggregation/accumulators/min_n_max_n.js

@@ -10,18 +10,17 @@ coll.drop();
 let docs = [];
 const n = 4;
 
-const largestInt =
-    NumberDecimal("9223372036854775807");  // This is max int64 which is supported as N.
+const largestInt = NumberDecimal("9223372036854775807"); // This is max int64 which is supported as N.
 const largestIntPlus1 = NumberDecimal("9223372036854775808"); // Adding 1 puts it over the edge.
 
 // Some big number that will allow us to test big without running this testcase into next decade.
 const bigN = 10000;
 
 const states = [
-    {state: 'CA', sales: 10},
-    {state: 'NY', sales: 7},
-    {state: 'TX', sales: 4},
-    {state: 'WY', sales: bigN}
+    {state: "CA", sales: 10},
+    {state: "NY", sales: 7},
+    {state: "TX", sales: 4},
+    {state: "WY", sales: bigN},
 ];
 let expectedMinNResults = [];
 let expectedMaxNResults = [];
@@ -31,8 +30,8 @@ let expectedBigNMinNResults = [];
 let expectedBigNMaxNResults = [];
 
 for (const stateDoc of states) {
-    const state = stateDoc['state'];
-    const sales = stateDoc['sales'];
+    const state = stateDoc["state"];
+    const sales = stateDoc["sales"];
     let minArr = [];
     let maxArr = [];
     let minArrForLargestInt = [];
@@ -80,11 +79,8 @@ assert.commandWorked(coll.insert(docs));
 // Note that the output documents are sorted by '_id' so that we can compare actual groups against
 // expected groups (we cannot perform unordered comparison because order matters for $minN/$maxN).
 function runAndCompareMinMaxN(nFunction, n, expectedResults) {
-    const actualResults =
-        coll.aggregate([
-                {$group: {_id: '$state', sales: {[nFunction]: {input: '$sales', n: n}}}},
-                {$sort: {_id: 1}}
-            ])
+    const actualResults = coll
+        .aggregate([{$group: {_id: "$state", sales: {[nFunction]: {input: "$sales", n: n}}}}, {$sort: {_id: 1}}])
         .toArray();
     assert.eq(expectedResults, actualResults);
 
@@ -94,14 +90,14 @@ function runAndCompareMinMaxN(nFunction, n, expectedResults) {
     // to compare the $bucketAuto results to the expected $group results (because there are more
     // buckets than groups, it will always be the case that the min value of each bucket
     // corresponds to the group key).
-    let actualBucketAutoResults =
-        coll.aggregate([
+    let actualBucketAutoResults = coll
+        .aggregate([
             {
                 $bucketAuto: {
-                        groupBy: '$state',
+                    groupBy: "$state",
                     buckets: 10 * 1000,
-                        output: {sales: {[nFunction]: {input: '$sales', n: n}}}
-                    }
+                    output: {sales: {[nFunction]: {input: "$sales", n: n}}},
+                },
             },
             {$project: {_id: "$_id.min", sales: 1}},
             {$sort: {_id: 1}},
@@ -131,23 +127,25 @@ runAndCompareMinMaxN("$maxN", bigN - 1, expectedBigNMaxNResults);
 
 // Verify that we can dynamically compute 'n' based on the group key for $group.
 const groupKeyNExpr = {
-    $cond: {if: {$eq: ['$st', 'CA']}, then: 10, else: 4}
+    $cond: {if: {$eq: ["$st", "CA"]}, then: 10, else: 4},
 };
-const dynamicMinNResults =
-    coll.aggregate([{
-            $group: {_id: {'st': '$state'}, minSales: {$minN: {input: '$sales', n: groupKeyNExpr}}}
-        }])
+const dynamicMinNResults = coll
+    .aggregate([
+        {
+            $group: {_id: {"st": "$state"}, minSales: {$minN: {input: "$sales", n: groupKeyNExpr}}},
+        },
+    ])
     .toArray();
 
 // Verify that the 'CA' group has 10 results, while all others have only 4.
 for (const result of dynamicMinNResults) {
-    assert(result.hasOwnProperty('_id'), tojson(result));
-    const groupKey = result['_id'];
-    assert(groupKey.hasOwnProperty('st'), tojson(groupKey));
-    const state = groupKey['st'];
-    assert(result.hasOwnProperty('minSales'), tojson(result));
-    const salesArray = result['minSales'];
-    if (state === 'CA') {
+    assert(result.hasOwnProperty("_id"), tojson(result));
+    const groupKey = result["_id"];
+    assert(groupKey.hasOwnProperty("st"), tojson(groupKey));
+    const state = groupKey["st"];
+    assert(result.hasOwnProperty("minSales"), tojson(result));
+    const salesArray = result["minSales"];
+    if (state === "CA") {
         assert.eq(salesArray.length, 10, tojson(salesArray));
     } else {
         assert.eq(salesArray.length, 4, tojson(salesArray));
@@ -157,75 +155,94 @@ for (const result of dynamicMinNResults) {
 // Error cases
 
 // Cannot reference the group key in $minN when using $bucketAuto.
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [
+            {
                 $bucketAuto: {
                     groupBy: "$state",
                     buckets: 2,
-            output: {minSales: {$minN: {input: '$sales', n: groupKeyNExpr}}}
-        }
-    }],
-    cursor: {}
+                    output: {minSales: {$minN: {input: "$sales", n: groupKeyNExpr}}},
+                },
+            },
+        ],
+        cursor: {},
     }),
-                             4544714);
+    4544714,
+);
 
 // Reject non-integral/negative values of n.
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline:
-        [{$group: {_id: {'st': '$state'}, minSales: {$minN: {input: '$sales', n: 'string'}}}}],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, minSales: {$minN: {input: "$sales", n: "string"}}}}],
+        cursor: {},
     }),
-                             5787902);
+    5787902,
+);
 
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{$group: {_id: {'st': '$state'}, minSales: {$minN: {input: '$sales', n: 3.2}}}}],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, minSales: {$minN: {input: "$sales", n: 3.2}}}}],
+        cursor: {},
     }),
-                             5787903);
+    5787903,
+);
 
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{$group: {_id: {'st': '$state'}, minSales: {$minN: {input: '$sales', n: -1}}}}],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, minSales: {$minN: {input: "$sales", n: -1}}}}],
+        cursor: {},
     }),
-                             5787908);
+    5787908,
+);
 
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{$group: {_id: {'st': '$state'}, minSales: {$minN: {input: '$sales', n: 0}}}}],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, minSales: {$minN: {input: "$sales", n: 0}}}}],
+        cursor: {},
     }),
-                             5787908);
+    5787908,
+);
 
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [
-        {$group: {_id: {'st': '$state'}, minSales: {$minN: {input: '$sales', n: largestIntPlus1}}}}
-    ],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, minSales: {$minN: {input: "$sales", n: largestIntPlus1}}}}],
+        cursor: {},
     }),
-                             5787903);
+    5787903,
+);
 
 // Reject invalid specifications.
 
 // Missing arguments.
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{$group: {_id: {'st': '$state'}, minSales: {$minN: {input: '$sales'}}}}],
-    cursor: {}
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, minSales: {$minN: {input: "$sales"}}}}],
+        cursor: {},
     }),
-                             5787906);
+    5787906,
+);
 
 assert.commandFailedWithCode(
-    coll.runCommand(
-        "aggregate",
-        {pipeline: [{$group: {_id: {'st': '$state'}, minSales: {$minN: {n: 2}}}}], cursor: {}}),
-    5787907);
+    coll.runCommand("aggregate", {
+        pipeline: [{$group: {_id: {"st": "$state"}, minSales: {$minN: {n: 2}}}}],
+        cursor: {},
+    }),
+    5787907,
+);
 
 // Extra field.
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [
+            {
                 $group: {
-            _id: {'st': '$state'},
-            minSales: {$minN: {input: '$sales', n: 2, randomField: "randomArg"}}
-        }
-    }],
-    cursor: {}
+                    _id: {"st": "$state"},
+                    minSales: {$minN: {input: "$sales", n: 2, randomField: "randomArg"}},
+                },
+            },
+        ],
+        cursor: {},
     }),
-                             5787901);
+    5787901,
+);

jstests/aggregation/accumulators/percentiles_approx.js

@@ -9,7 +9,7 @@ import {
     testLargeUniformDataset_Decimal,
     testLargeUniformDataset_WithInfinities,
     testWithMultipleGroups,
-    testWithSingleGroup
+    testWithSingleGroup,
 } from "jstests/aggregation/libs/percentiles_util.js";
 
 const coll = db[jsTestName()];
@@ -23,7 +23,7 @@ testWithSingleGroup({
     docs: [{x: 0}, {x: "non-numeric"}, {x: 1}, {no_x: 0}, {x: 2}],
     percentileSpec: {$percentile: {p: [0.5], input: "$x", method: "approximate"}},
     expectedResult: [1],
-    msg: "Non-numeric data should be ignored"
+    msg: "Non-numeric data should be ignored",
 });
 
 testWithSingleGroup({
@@ -31,7 +31,7 @@ testWithSingleGroup({
     docs: [{x: "non-numeric"}, {no_x: 0}, {x: new Date()}, {x: [42, 43]}, {x: null}, {x: NaN}],
     percentileSpec: {$percentile: {p: [0.5], input: "$x", method: "approximate"}},
     expectedResult: [null],
-    msg: "Single percentile of completely non-numeric data"
+    msg: "Single percentile of completely non-numeric data",
 });
 
 testWithSingleGroup({
@@ -39,7 +39,7 @@ testWithSingleGroup({
     docs: [{x: "non-numeric"}, {no_x: 0}, {x: new Date()}, {x: [42, 43]}, {x: null}, {x: NaN}],
     percentileSpec: {$percentile: {p: [0.5, 0.9], input: "$x", method: "approximate"}},
     expectedResult: [null, null],
-    msg: "Multiple percentiles of completely non-numeric data"
+    msg: "Multiple percentiles of completely non-numeric data",
 });
 
 testWithSingleGroup({
@@ -47,7 +47,7 @@ testWithSingleGroup({
     docs: [{x: 10}, {x: 5}, {x: 27}],
     percentileSpec: {$percentile: {p: [0], input: "$x", method: "approximate"}},
     expectedResult: [5],
-    msg: "Minimum percentile"
+    msg: "Minimum percentile",
 });
 
 testWithSingleGroup({
@@ -55,7 +55,7 @@ testWithSingleGroup({
     docs: [{x: 10}, {x: 5}, {x: 27}],
     percentileSpec: {$percentile: {p: [1], input: "$x", method: "approximate"}},
     expectedResult: [27],
-    msg: "Maximum percentile"
+    msg: "Maximum percentile",
 });
 
 testWithSingleGroup({
@@ -63,7 +63,7 @@ testWithSingleGroup({
     docs: [{x: 0}, {x: 1}, {x: 2}],
     percentileSpec: {$percentile: {p: [0.5, 0.9, 0.1], input: "$x", method: "approximate"}},
     expectedResult: [1, 2, 0],
-    msg: "Multiple percentiles"
+    msg: "Multiple percentiles",
 });
 
 testWithSingleGroup({
@@ -72,7 +72,7 @@ testWithSingleGroup({
     percentileSpec: {$percentile: {p: "$$ps", input: "$x", method: "approximate"}},
     letSpec: {ps: [0.5, 0.9, 0.1]},
     expectedResult: [1, 2, 0],
-    msg: "Multiple percentiles using variable in the percentile spec for the whole array"
+    msg: "Multiple percentiles using variable in the percentile spec for the whole array",
 });
 
 testWithSingleGroup({
@@ -81,19 +81,18 @@ testWithSingleGroup({
     percentileSpec: {$percentile: {p: ["$$p90"], input: "$x", method: "approximate"}},
     letSpec: {p90: 0.9},
     expectedResult: [2],
-    msg: "Single percentile using variable in the percentile spec for the array elements"
+    msg: "Single percentile using variable in the percentile spec for the array elements",
 });
 
 testWithSingleGroup({
     coll: coll,
     docs: [{x: 0}, {x: 1}, {x: 2}],
     percentileSpec: {
-        $percentile:
-            {p: {$concatArrays: [[0.1, 0.5], ["$$p90"]]}, input: "$x", method: "approximate"}
+        $percentile: {p: {$concatArrays: [[0.1, 0.5], ["$$p90"]]}, input: "$x", method: "approximate"},
     },
     letSpec: {p90: 0.9},
     expectedResult: [0, 1, 2],
-    msg: "Multiple percentiles using const expression in the percentile spec"
+    msg: "Multiple percentiles using const expression in the percentile spec",
 });
 
 testWithSingleGroup({
@@ -102,7 +101,7 @@ testWithSingleGroup({
     percentileSpec: {$percentile: {p: "$$ps", input: {$add: [42, "$x"]}, method: "approximate"}},
     letSpec: {ps: [0.5, 0.9, 0.1]},
     expectedResult: [42 + 1, 42 + 2, 42 + 0],
-    msg: "Multiple percentiles using expression as input"
+    msg: "Multiple percentiles using expression as input",
 });
 
 /**
@@ -113,7 +112,7 @@ testWithMultipleGroups({
     docs: [{k: 0, x: 0}, {k: 0, x: 1}, {k: 1, x: 2}, {k: 2}, {k: 0, x: "str"}, {k: 1, x: 0}],
     percentileSpec: {$percentile: {p: [0.9], input: "$x", method: "approximate"}},
     expectedResult: [/* k:0 */ [1], /* k:1 */ [2], /* k:2 */ [null]],
-    msg: "Multiple groups"
+    msg: "Multiple groups",
 });
 
 /**
@@ -143,8 +142,7 @@ const p = [0.0, 0.001, 0.01, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.99,
 
 testLargeUniformDataset(coll, samples, sortedSamples, p, accuracyError, "approximate");
 
-testLargeUniformDataset_WithInfinities(
-    coll, samples, sortedSamples, p, accuracyError, "approximate");
+testLargeUniformDataset_WithInfinities(coll, samples, sortedSamples, p, accuracyError, "approximate");
 
 // Same dataset but using Decimal128 type.
 testLargeUniformDataset_Decimal(coll, samples, sortedSamples, p, accuracyError, "approximate");

jstests/aggregation/accumulators/percentiles_continuous.js

@@ -10,7 +10,7 @@ import {
     testLargeUniformDataset_Decimal,
     testLargeUniformDataset_WithInfinities,
     testWithMultipleGroups,
-    testWithSingleGroup
+    testWithSingleGroup,
 } from "jstests/aggregation/libs/percentiles_util.js";
 
 const coll = db[jsTestName()];
@@ -24,7 +24,7 @@ testWithSingleGroup({
     docs: [{x: 0}, {x: "non-numeric"}, {x: 1}, {no_x: 0}, {x: 2}],
     percentileSpec: {$percentile: {p: [0.5], input: "$x", method: "continuous"}},
     expectedResult: [1],
-    msg: "Non-numeric data should be ignored"
+    msg: "Non-numeric data should be ignored",
 });
 
 testWithSingleGroup({
@@ -32,7 +32,7 @@ testWithSingleGroup({
     docs: [{x: "non-numeric"}, {no_x: 0}, {x: new Date()}, {x: [42, 43]}, {x: null}, {x: NaN}],
     percentileSpec: {$percentile: {p: [0.5], input: "$x", method: "continuous"}},
     expectedResult: [null],
-    msg: "Single percentile of completely non-numeric data"
+    msg: "Single percentile of completely non-numeric data",
 });
 
 testWithSingleGroup({
@@ -40,7 +40,7 @@ testWithSingleGroup({
     docs: [{x: "non-numeric"}, {no_x: 0}, {x: new Date()}, {x: [42, 43]}, {x: null}, {x: NaN}],
     percentileSpec: {$percentile: {p: [0.5, 0.9], input: "$x", method: "continuous"}},
     expectedResult: [null, null],
-    msg: "Multiple percentiles of completely non-numeric data"
+    msg: "Multiple percentiles of completely non-numeric data",
 });
 
 testWithSingleGroup({
@@ -48,7 +48,7 @@ testWithSingleGroup({
     docs: [{x: 10}, {x: 5}, {x: 27}],
     percentileSpec: {$percentile: {p: [0], input: "$x", method: "continuous"}},
     expectedResult: [5],
-    msg: "Minimum percentile"
+    msg: "Minimum percentile",
 });
 
 testWithSingleGroup({
@@ -56,7 +56,7 @@ testWithSingleGroup({
     docs: [{x: 10}, {x: 5}, {x: 27}],
     percentileSpec: {$percentile: {p: [1], input: "$x", method: "continuous"}},
     expectedResult: [27],
-    msg: "Maximum percentile"
+    msg: "Maximum percentile",
 });
 
 testWithSingleGroup({
@@ -64,7 +64,7 @@ testWithSingleGroup({
     docs: [{x: 0}, {x: 1}, {x: 2}],
     percentileSpec: {$percentile: {p: [0.5, 0.9, 0.1], input: "$x", method: "continuous"}},
     expectedResult: [1, 1.8, 0.2],
-    msg: "Multiple percentiles"
+    msg: "Multiple percentiles",
 });
 
 testWithSingleGroup({
@@ -73,7 +73,7 @@ testWithSingleGroup({
     percentileSpec: {$percentile: {p: "$$ps", input: "$x", method: "continuous"}},
     letSpec: {ps: [0.5, 0.9, 0.1]},
     expectedResult: [1, 1.8, 0.2],
-    msg: "Multiple percentiles using variable in the percentile spec for the whole array"
+    msg: "Multiple percentiles using variable in the percentile spec for the whole array",
 });
 
 testWithSingleGroup({
@@ -82,19 +82,18 @@ testWithSingleGroup({
     percentileSpec: {$percentile: {p: ["$$p90"], input: "$x", method: "continuous"}},
     letSpec: {p90: 0.9},
     expectedResult: [1.8],
-    msg: "Single percentile using variable in the percentile spec for the array elements"
+    msg: "Single percentile using variable in the percentile spec for the array elements",
 });
 
 testWithSingleGroup({
     coll: coll,
     docs: [{x: 0}, {x: 1}, {x: 2}],
     percentileSpec: {
-        $percentile:
-            {p: {$concatArrays: [[0.1, 0.5], ["$$p90"]]}, input: "$x", method: "continuous"}
+        $percentile: {p: {$concatArrays: [[0.1, 0.5], ["$$p90"]]}, input: "$x", method: "continuous"},
     },
     letSpec: {p90: 0.9},
     expectedResult: [0.2, 1, 1.8],
-    msg: "Multiple percentiles using const expression in the percentile spec"
+    msg: "Multiple percentiles using const expression in the percentile spec",
 });
 
 testWithSingleGroup({
@@ -103,7 +102,7 @@ testWithSingleGroup({
     percentileSpec: {$percentile: {p: "$$ps", input: {$add: [42, "$x"]}, method: "continuous"}},
     letSpec: {ps: [0.5, 0.9, 0.1]},
     expectedResult: [42 + 1, 42 + 1.8, 42 + 0.2],
-    msg: "Multiple percentiles using expression as input"
+    msg: "Multiple percentiles using expression as input",
 });
 
 /**
@@ -114,7 +113,7 @@ testWithMultipleGroups({
     docs: [{k: 0, x: 0}, {k: 0, x: 1}, {k: 1, x: 2}, {k: 2}, {k: 0, x: "str"}, {k: 1, x: 0}],
     percentileSpec: {$percentile: {p: [0.9], input: "$x", method: "continuous"}},
     expectedResult: [/* k:0 */ [0.9], /* k:1 */ [1.8], /* k:2 */ [null]],
-    msg: "Multiple groups"
+    msg: "Multiple groups",
 });
 
 /**
@@ -139,8 +138,7 @@ const p = [0.0, 0.001, 0.01, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.99,
 
 testLargeUniformDataset(coll, samples, sortedSamples, p, accuracyError, "continuous");
 
-testLargeUniformDataset_WithInfinities(
-    coll, samples, sortedSamples, p, accuracyError, "continuous");
+testLargeUniformDataset_WithInfinities(coll, samples, sortedSamples, p, accuracyError, "continuous");
 
 // TODO SERVER-91956: Improve precision so that this test succeeds.
 // // Same dataset but using Decimal128 type.

jstests/aggregation/accumulators/percentiles_discrete.js

@@ -10,7 +10,7 @@ import {
     testLargeUniformDataset_Decimal,
     testLargeUniformDataset_WithInfinities,
     testWithMultipleGroups,
-    testWithSingleGroup
+    testWithSingleGroup,
 } from "jstests/aggregation/libs/percentiles_util.js";
 
 const coll = db[jsTestName()];
@@ -24,7 +24,7 @@ testWithSingleGroup({
     docs: [{x: 0}, {x: "non-numeric"}, {x: 1}, {no_x: 0}, {x: 2}],
     percentileSpec: {$percentile: {p: [0.5], input: "$x", method: "discrete"}},
     expectedResult: [1],
-    msg: "Non-numeric data should be ignored"
+    msg: "Non-numeric data should be ignored",
 });
 
 testWithSingleGroup({
@@ -32,7 +32,7 @@ testWithSingleGroup({
     docs: [{x: "non-numeric"}, {no_x: 0}, {x: new Date()}, {x: [42, 43]}, {x: null}, {x: NaN}],
     percentileSpec: {$percentile: {p: [0.5], input: "$x", method: "discrete"}},
     expectedResult: [null],
-    msg: "Single percentile of completely non-numeric data"
+    msg: "Single percentile of completely non-numeric data",
 });
 
 testWithSingleGroup({
@@ -40,7 +40,7 @@ testWithSingleGroup({
     docs: [{x: "non-numeric"}, {no_x: 0}, {x: new Date()}, {x: [42, 43]}, {x: null}, {x: NaN}],
     percentileSpec: {$percentile: {p: [0.5, 0.9], input: "$x", method: "discrete"}},
     expectedResult: [null, null],
-    msg: "Multiple percentiles of completely non-numeric data"
+    msg: "Multiple percentiles of completely non-numeric data",
 });
 
 testWithSingleGroup({
@@ -48,7 +48,7 @@ testWithSingleGroup({
     docs: [{x: 10}, {x: 5}, {x: 27}],
     percentileSpec: {$percentile: {p: [0], input: "$x", method: "discrete"}},
     expectedResult: [5],
-    msg: "Minimum percentile"
+    msg: "Minimum percentile",
 });
 
 testWithSingleGroup({
@@ -56,7 +56,7 @@ testWithSingleGroup({
     docs: [{x: 10}, {x: 5}, {x: 27}],
     percentileSpec: {$percentile: {p: [1], input: "$x", method: "discrete"}},
     expectedResult: [27],
-    msg: "Maximum percentile"
+    msg: "Maximum percentile",
 });
 
 testWithSingleGroup({
@@ -64,7 +64,7 @@ testWithSingleGroup({
     docs: [{x: 0}, {x: 1}, {x: 2}],
     percentileSpec: {$percentile: {p: [0.5, 0.9, 0.1], input: "$x", method: "discrete"}},
     expectedResult: [1, 2, 0],
-    msg: "Multiple percentiles"
+    msg: "Multiple percentiles",
 });
 
 testWithSingleGroup({
@@ -72,7 +72,7 @@ testWithSingleGroup({
     docs: [{x: -Infinity}, {x: 0}, {x: 1}, {x: 2}, {x: Infinity}, {x: Infinity}, {x: Infinity}],
     percentileSpec: {$percentile: {p: [0.5, 0.9, 0.1], input: "$x", method: "discrete"}},
     expectedResult: [2, Infinity, -Infinity],
-    msg: "Multiple percentiles with infinities"
+    msg: "Multiple percentiles with infinities",
 });
 
 testWithSingleGroup({
@@ -81,7 +81,7 @@ testWithSingleGroup({
     percentileSpec: {$percentile: {p: "$$ps", input: "$x", method: "discrete"}},
     letSpec: {ps: [0.5, 0.9, 0.1]},
     expectedResult: [1, 2, 0],
-    msg: "Multiple percentiles using variable in the percentile spec for the whole array"
+    msg: "Multiple percentiles using variable in the percentile spec for the whole array",
 });
 
 testWithSingleGroup({
@@ -90,18 +90,18 @@ testWithSingleGroup({
     percentileSpec: {$percentile: {p: ["$$p90"], input: "$x", method: "discrete"}},
     letSpec: {p90: 0.9},
     expectedResult: [2],
-    msg: "Single percentile using variable in the percentile spec for the array elements"
+    msg: "Single percentile using variable in the percentile spec for the array elements",
 });
 
 testWithSingleGroup({
     coll: coll,
     docs: [{x: 0}, {x: 1}, {x: 2}],
     percentileSpec: {
-        $percentile: {p: {$concatArrays: [[0.1, 0.5], ["$$p90"]]}, input: "$x", method: "discrete"}
+        $percentile: {p: {$concatArrays: [[0.1, 0.5], ["$$p90"]]}, input: "$x", method: "discrete"},
     },
     letSpec: {p90: 0.9},
     expectedResult: [0, 1, 2],
-    msg: "Multiple percentiles using const expression in the percentile spec"
+    msg: "Multiple percentiles using const expression in the percentile spec",
 });
 
 testWithSingleGroup({
@@ -110,7 +110,7 @@ testWithSingleGroup({
     percentileSpec: {$percentile: {p: "$$ps", input: {$add: [42, "$x"]}, method: "discrete"}},
     letSpec: {ps: [0.5, 0.9, 0.1]},
     expectedResult: [42 + 1, 42 + 2, 42 + 0],
-    msg: "Multiple percentiles using expression as input"
+    msg: "Multiple percentiles using expression as input",
 });
 
 /**
@@ -121,7 +121,7 @@ testWithMultipleGroups({
     docs: [{k: 0, x: 0}, {k: 0, x: 1}, {k: 1, x: 2}, {k: 2}, {k: 0, x: "str"}, {k: 1, x: 0}],
     percentileSpec: {$percentile: {p: [0.9], input: "$x", method: "discrete"}},
     expectedResult: [/* k:0 */ [1], /* k:1 */ [2], /* k:2 */ [null]],
-    msg: "Multiple groups"
+    msg: "Multiple groups",
 });
 
 /**

jstests/aggregation/accumulators/percentiles_syntax.js

@@ -29,27 +29,26 @@ function assertValidSyntax({pSpec, letSpec, msg}) {
 /**
  * Test missing or unexpected fields in $percentile spec.
  */
-assertInvalidSyntax(
-    {pSpec: {$percentile: 0.5}, msg: "Should fail if $percentile is not an object"});
+assertInvalidSyntax({pSpec: {$percentile: 0.5}, msg: "Should fail if $percentile is not an object"});
 
 assertInvalidSyntax({
     pSpec: {$percentile: {input: "$x", method: "approximate"}},
-    msg: "Should fail if $percentile is missing 'p' field"
+    msg: "Should fail if $percentile is missing 'p' field",
 });
 
 assertInvalidSyntax({
     pSpec: {$percentile: {p: [0.5], method: "approximate"}},
-    msg: "Should fail if $percentile is missing 'input' field"
+    msg: "Should fail if $percentile is missing 'input' field",
 });
 
 assertInvalidSyntax({
     pSpec: {$percentile: {p: [0.5], input: "$x"}},
-    msg: "Should fail if $percentile is missing 'method' field"
+    msg: "Should fail if $percentile is missing 'method' field",
 });
 
 assertInvalidSyntax({
     pSpec: {$percentile: {p: [0.5], input: "$x", method: "approximate", extras: 42}},
-    msg: "Should fail if $percentile contains an unexpected field"
+    msg: "Should fail if $percentile contains an unexpected field",
 });
 
 /**
@@ -57,23 +56,22 @@ assertInvalidSyntax({
  */
 assertInvalidSyntax({
     pSpec: {$percentile: {p: 0.5, input: "$x", method: "approximate"}},
-    msg: "Should fail if 'p' field in $percentile isn't array"
+    msg: "Should fail if 'p' field in $percentile isn't array",
 });
 
 assertInvalidSyntax({
     pSpec: {$percentile: {p: [], input: "$x", method: "approximate"}},
-    msg: "Should fail if 'p' field in $percentile is an empty array"
+    msg: "Should fail if 'p' field in $percentile is an empty array",
 });
 
 assertInvalidSyntax({
     pSpec: {$percentile: {p: [0.5, "foo"], input: "$x", method: "approximate"}},
-    msg: "Should fail if 'p' field in $percentile is an array with a non-numeric element"
+    msg: "Should fail if 'p' field in $percentile is an array with a non-numeric element",
 });
 
 assertInvalidSyntax({
     pSpec: {$percentile: {p: [0.5, 10], input: "$x", method: "approximate"}},
-    msg:
-        "Should fail if 'p' field in $percentile is an array with any value outside of [0, 1] range"
+    msg: "Should fail if 'p' field in $percentile is an array with any value outside of [0, 1] range",
 });
 
 /**
@@ -81,32 +79,31 @@ assertInvalidSyntax({
  */
 assertInvalidSyntax({
     pSpec: {$percentile: {p: ["$x"], input: "$x", method: "approximate"}},
-    msg: "'p' should not accept non-const expressions"
+    msg: "'p' should not accept non-const expressions",
 });
 
 assertInvalidSyntax({
     pSpec: {$percentile: {p: {$add: [0.1, 0.5]}, input: "$x", method: "approximate"}},
-    msg: "'p' should not accept expressions that evaluate to a non-array"
+    msg: "'p' should not accept expressions that evaluate to a non-array",
 });
 
 assertInvalidSyntax({
     pSpec: {
-        $percentile:
-            {p: {$concatArrays: [[0.01, 0.1], ["foo"]]}, input: "$x", method: "approximate"}
+        $percentile: {p: {$concatArrays: [[0.01, 0.1], ["foo"]]}, input: "$x", method: "approximate"},
     },
-    msg: "'p' should not accept expressions that evaluate to an array with non-numeric elements"
+    msg: "'p' should not accept expressions that evaluate to an array with non-numeric elements",
 });
 
 assertInvalidSyntax({
     pSpec: {$percentile: {p: "$$pvals", input: "$x", method: "approximate"}},
     letSpec: {pvals: 0.5},
-    msg: "'p' should not accept variables that evaluate to a non-array"
+    msg: "'p' should not accept variables that evaluate to a non-array",
 });
 
 assertInvalidSyntax({
     pSpec: {$percentile: {p: "$$pvals", input: "$x", method: "approximate"}},
     letSpec: {pvals: [0.5, "foo"]},
-    msg: "'p' should not accept variables that evaluate to an array with non-numeric elements"
+    msg: "'p' should not accept variables that evaluate to an array with non-numeric elements",
 });
 
 /**
@@ -114,37 +111,36 @@ assertInvalidSyntax({
  */
 assertInvalidSyntax({
     pSpec: {$percentile: {p: [0.5, 0.7], input: "$x", method: 42}},
-    msg: "$percentile should fail if 'method' field isn't a string"
+    msg: "$percentile should fail if 'method' field isn't a string",
 });
 
 assertInvalidSyntax({
     pSpec: {$percentile: {p: [0.5, 0.7], input: "$x", method: "fancy"}},
-    msg: "$percentile should fail if 'method' isn't one of _predefined_ strings"
+    msg: "$percentile should fail if 'method' isn't one of _predefined_ strings",
 });
 
 if (FeatureFlagUtil.isPresentAndEnabled(db, "AccuratePercentiles")) {
     assertValidSyntax({
         pSpec: {$percentile: {p: [0.5, 0.7], input: "$x", method: "discrete"}},
-        msg: "Should work with discrete 'method'"
+        msg: "Should work with discrete 'method'",
     });
 
     assertValidSyntax({
         pSpec: {$percentile: {p: [0.5, 0.7], input: "$x", method: "continuous"}},
         errorCode: ErrorCodes.InternalErrorNotSupported,
-        msg: "Should work with continuous 'method'"
+        msg: "Should work with continuous 'method'",
     });
-
 } else {
     assertInvalidSyntax({
         pSpec: {$percentile: {p: [0.5, 0.7], input: "$x", method: "discrete"}},
         errorCode: ErrorCodes.BadValue,
-        msg: "$percentile should fail because discrete 'method' isn't supported yet"
+        msg: "$percentile should fail because discrete 'method' isn't supported yet",
     });
 
     assertInvalidSyntax({
         pSpec: {$percentile: {p: [0.5, 0.7], input: "$x", method: "continuous"}},
         errorCode: ErrorCodes.BadValue,
-        msg: "$percentile should fail because continuous 'method' isn't supported yet"
+        msg: "$percentile should fail because continuous 'method' isn't supported yet",
     });
 }
 
@@ -153,50 +149,48 @@ if (FeatureFlagUtil.isPresentAndEnabled(db, "AccuratePercentiles")) {
  */
 assertInvalidSyntax({
     pSpec: {$median: {p: [0.5], input: "$x", method: "approximate"}},
-    msg: "$median should fail if 'p' is defined"
+    msg: "$median should fail if 'p' is defined",
 });
 
 assertInvalidSyntax({
     pSpec: {$median: {method: "approximate"}},
-    msg: "$median should fail if 'input' field is missing"
+    msg: "$median should fail if 'input' field is missing",
 });
 
-assertInvalidSyntax(
-    {pSpec: {$median: {input: "$x"}}, msg: "Median should fail if 'method' field is missing"});
+assertInvalidSyntax({pSpec: {$median: {input: "$x"}}, msg: "Median should fail if 'method' field is missing"});
 
 assertInvalidSyntax({
     pSpec: {$median: {input: "$x", method: "approximate", extras: 42}},
-    msg: "$median should fail if there is an unexpected field"
+    msg: "$median should fail if there is an unexpected field",
 });
 
 assertInvalidSyntax({
     pSpec: {$median: {input: "$x", method: "fancy"}},
-    msg: "$median should fail if 'method' isn't one of the _predefined_ strings"
+    msg: "$median should fail if 'method' isn't one of the _predefined_ strings",
 });
 
 if (FeatureFlagUtil.isPresentAndEnabled(db, "AccuratePercentiles")) {
     assertValidSyntax({
         pSpec: {$median: {input: "$x", method: "discrete"}},
-        msg: "Should work with discrete 'method'"
+        msg: "Should work with discrete 'method'",
     });
 
     assertValidSyntax({
         pSpec: {$median: {input: "$x", method: "continuous"}},
         errorCode: ErrorCodes.InternalErrorNotSupported,
-        msg: "Should work with continuous 'method'"
+        msg: "Should work with continuous 'method'",
     });
-
 } else {
     assertInvalidSyntax({
         pSpec: {$median: {input: "$x", method: "discrete"}},
         errorCode: ErrorCodes.BadValue,
-        msg: "$median should fail because discrete 'method' isn't supported yet"
+        msg: "$median should fail because discrete 'method' isn't supported yet",
     });
 
     assertInvalidSyntax({
         pSpec: {$median: {input: "$x", method: "continuous"}},
         errorCode: ErrorCodes.BadValue,
-        msg: "$median should fail because continuous 'method' isn't supported yet"
+        msg: "$median should fail because continuous 'method' isn't supported yet",
     });
 }
 
@@ -207,58 +201,65 @@ if (FeatureFlagUtil.isPresentAndEnabled(db, "AccuratePercentiles")) {
  */
 assertValidSyntax({
     pSpec: {$percentile: {p: [0.0, 0.0001, 0.5, 0.995, 1.0], input: "$x", method: "approximate"}},
-    msg: "Should be able to specify an array of percentiles"
+    msg: "Should be able to specify an array of percentiles",
 });
 
 assertValidSyntax({
     pSpec: {$percentile: {p: [0.5, 0.9], input: {$divide: ["$x", 2]}, method: "approximate"}},
-    msg: "Should be able to specify 'input' as an expression"
+    msg: "Should be able to specify 'input' as an expression",
 });
 
 assertValidSyntax({
     pSpec: {$percentile: {p: [0.5, 0.9], input: "x", method: "approximate"}},
-    msg: "Non-numeric inputs should be gracefully ignored"
+    msg: "Non-numeric inputs should be gracefully ignored",
 });
 
 assertValidSyntax({
     pSpec: {$percentile: {p: [0.5, 0.9], input: {$add: [2, "$x"]}, method: "approximate"}},
-    msg: "'input' should be able to use expressions"
+    msg: "'input' should be able to use expressions",
 });
 
 assertValidSyntax({
     pSpec: {
-        $percentile: {p: [0.5, 0.9], input: {$concatArrays: [[2], ["$x"]]}, method: "approximate"}
+        $percentile: {p: [0.5, 0.9], input: {$concatArrays: [[2], ["$x"]]}, method: "approximate"},
     },
-    msg: "'input' should be able to use expressions even if the result of their eval is non-numeric"
+    msg: "'input' should be able to use expressions even if the result of their eval is non-numeric",
 });
 
 assertValidSyntax({
     pSpec: {
-        $percentile:
-            {p: {$concatArrays: [[0.01, 0.1], [0.9, 0.99]]}, input: "$x", method: "approximate"}
+        $percentile: {
+            p: {
+                $concatArrays: [
+                    [0.01, 0.1],
+                    [0.9, 0.99],
+                ],
             },
-    msg: "'p' should be able to use expressions that evaluate to an array"
+            input: "$x",
+            method: "approximate",
+        },
+    },
+    msg: "'p' should be able to use expressions that evaluate to an array",
 });
 
 assertValidSyntax({
     pSpec: {$percentile: {p: [{$add: [0.1, 0.5]}], input: "$x", method: "approximate"}},
-    msg: "'p' should be able to use expressions for the array elements"
+    msg: "'p' should be able to use expressions for the array elements",
 });
 
 assertValidSyntax({
     pSpec: {$percentile: {p: "$$pvals", input: "$x", method: "approximate"}},
     letSpec: {pvals: [0.5, 0.9]},
-    msg: "'p' should be able to use variables for the array"
+    msg: "'p' should be able to use variables for the array",
 });
 
 assertValidSyntax({
     pSpec: {$percentile: {p: ["$$p1", "$$p2"], input: "$x", method: "approximate"}},
     letSpec: {p1: 0.5, p2: 0.9},
-    msg: "'p' should be able to use variables for the array elements"
+    msg: "'p' should be able to use variables for the array elements",
 });
 
 /**
  * Tests for valid $median.
  */
-assertValidSyntax(
-    {pSpec: {$median: {input: "$x", method: "approximate"}}, msg: "Simple base case for $median."});
+assertValidSyntax({pSpec: {$median: {input: "$x", method: "approximate"}}, msg: "Simple base case for $median."});

jstests/aggregation/accumulators/set_union.js

@@ -10,11 +10,17 @@ assert(coll.drop());
 // Test that $setUnion produces a single array containing all the unique values from the input
 // arrays. As $setUnion does not provide guarantees on ordering, the result is sorted for easy
 // comparison.
-assert.commandWorked(coll.insert([{_id: 0, nums: [1, 2, 3]}, {_id: 1, nums: [4, 5, 6]}]));
+assert.commandWorked(
+    coll.insert([
+        {_id: 0, nums: [1, 2, 3]},
+        {_id: 1, nums: [4, 5, 6]},
+    ]),
+);
 
-let result = coll.aggregate([
-                     {$group: {_id: null, n: {$setUnion: '$nums'}}},
-                     {$project: {_id: 1, setUnionArr: {$sortArray: {input: '$n', sortBy: 1}}}}
+let result = coll
+    .aggregate([
+        {$group: {_id: null, n: {$setUnion: "$nums"}}},
+        {$project: {_id: 1, setUnionArr: {$sortArray: {input: "$n", sortBy: 1}}}},
     ])
     .toArray();
 
@@ -24,12 +30,18 @@ assert(coll.drop());
 
 // Test that $setUnion deduplicates the values. That is, each unique value will only appear once in
 // the ouput of the accumulation.
-assert.commandWorked(coll.insert(
-    [{_id: 0, nums: [1, 2, 3]}, {_id: 1, nums: [2, 3, 4]}, {_id: 2, nums: [3, 4, 5, 6]}]));
+assert.commandWorked(
+    coll.insert([
+        {_id: 0, nums: [1, 2, 3]},
+        {_id: 1, nums: [2, 3, 4]},
+        {_id: 2, nums: [3, 4, 5, 6]},
+    ]),
+);
 
-result = coll.aggregate([
-                 {$group: {_id: null, n: {$setUnion: '$nums'}}},
-                 {$project: {_id: 1, setUnionArr: {$sortArray: {input: '$n', sortBy: 1}}}}
+result = coll
+    .aggregate([
+        {$group: {_id: null, n: {$setUnion: "$nums"}}},
+        {$project: {_id: 1, setUnionArr: {$sortArray: {input: "$n", sortBy: 1}}}},
     ])
     .toArray();
 
@@ -41,9 +53,10 @@ assert(coll.drop());
 // value will only appear once in the ouput of the accumulation.
 assert.commandWorked(coll.insert([{_id: 0, nums: [1, 1, 2, 2, 3, 3]}]));
 
-result = coll.aggregate([
-                 {$group: {_id: null, n: {$setUnion: '$nums'}}},
-                 {$project: {_id: 1, setUnionArr: {$sortArray: {input: '$n', sortBy: 1}}}}
+result = coll
+    .aggregate([
+        {$group: {_id: null, n: {$setUnion: "$nums"}}},
+        {$project: {_id: 1, setUnionArr: {$sortArray: {input: "$n", sortBy: 1}}}},
     ])
     .toArray();
 
@@ -52,15 +65,18 @@ assert.eq(result, [{_id: null, setUnionArr: [1, 2, 3]}]);
 assert(coll.drop());
 
 // Nested arrays should still be arrays in the result of $setUnion.
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, vals: [["nested"], 1, 2]},
         {_id: 1, vals: [3, 4, ["nested"]]},
-    {_id: 2, vals: [4, ["nested", "extra"]]}
-]));
+        {_id: 2, vals: [4, ["nested", "extra"]]},
+    ]),
+);
 
-result = coll.aggregate([
-                 {$group: {_id: null, n: {$setUnion: '$vals'}}},
-                 {$project: {_id: 1, setUnionArr: {$sortArray: {input: '$n', sortBy: 1}}}}
+result = coll
+    .aggregate([
+        {$group: {_id: null, n: {$setUnion: "$vals"}}},
+        {$project: {_id: 1, setUnionArr: {$sortArray: {input: "$n", sortBy: 1}}}},
     ])
     .toArray();
 
@@ -70,33 +86,47 @@ assert(coll.drop());
 
 // $setUnion should deduplicate objects as well. Note that documents which differ in field order are
 // considered unique.
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, vals: [{a: 1, b: 2}]},
         {_id: 1, vals: [{b: 2, a: 1}]},
         {_id: 2, vals: [{a: 1, b: 2}]},
-]));
+    ]),
+);
 
-result = coll.aggregate([
-                 {$group: {_id: null, n: {$setUnion: '$vals'}}},
-                 {$project: {_id: 1, setUnionArr: {$sortArray: {input: '$n', sortBy: 1}}}}
+result = coll
+    .aggregate([
+        {$group: {_id: null, n: {$setUnion: "$vals"}}},
+        {$project: {_id: 1, setUnionArr: {$sortArray: {input: "$n", sortBy: 1}}}},
     ])
     .toArray();
 
-assert.eq(result, [{_id: null, setUnionArr: [{a: 1, b: 2}, {b: 2, a: 1}]}]);
+assert.eq(result, [
+    {
+        _id: null,
+        setUnionArr: [
+            {a: 1, b: 2},
+            {b: 2, a: 1},
+        ],
+    },
+]);
 
 assert(coll.drop());
 
 // $setUnion should 'skip over' documents that do not have the array field. Importantly, do not
 // insert null for documents that do not have the referenced field.
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 1, author: "Nick", publisher: "Pub3", books: ["Smile :)"]},
         {_id: 2, author: "Santiago", publisher: "Pub3"},
-    {_id: 3, author: "Matt", publisher: "Pub3", books: ["Happy!"]}
-]));
-result = coll.aggregate([
+        {_id: 3, author: "Matt", publisher: "Pub3", books: ["Happy!"]},
+    ]),
+);
+result = coll
+    .aggregate([
         {$sort: {_id: 1}},
-                 {$group: {_id: null, allBooks: {$setUnion: '$books'}}},
-                 {$project: {_id: 1, setUnionArr: {$sortArray: {input: '$allBooks', sortBy: 1}}}}
+        {$group: {_id: null, allBooks: {$setUnion: "$books"}}},
+        {$project: {_id: 1, setUnionArr: {$sortArray: {input: "$allBooks", sortBy: 1}}}},
     ])
     .toArray();
 
@@ -105,12 +135,18 @@ assert.eq(result, [{_id: null, setUnionArr: ["Happy!", "Smile :)"]}]);
 assert(coll.drop());
 
 // $setUnion dotted field.
-assert.commandWorked(coll.insert(
-    [{_id: 1, a: {b: [1, 2, 3]}}, {_id: 2, a: {b: [3, 4, 5, 6]}}, {_id: 3, a: {b: [7, 8, 9]}}]));
-result = coll.aggregate([
+assert.commandWorked(
+    coll.insert([
+        {_id: 1, a: {b: [1, 2, 3]}},
+        {_id: 2, a: {b: [3, 4, 5, 6]}},
+        {_id: 3, a: {b: [7, 8, 9]}},
+    ]),
+);
+result = coll
+    .aggregate([
         {$sort: {_id: 1}},
-                 {$group: {_id: null, nums: {$setUnion: '$a.b'}}},
-                 {$project: {_id: 1, setUnionArr: {$sortArray: {input: '$nums', sortBy: 1}}}}
+        {$group: {_id: null, nums: {$setUnion: "$a.b"}}},
+        {$project: {_id: 1, setUnionArr: {$sortArray: {input: "$nums", sortBy: 1}}}},
     ])
     .toArray();
 assert.eq(result, [{_id: null, setUnionArr: [1, 2, 3, 4, 5, 6, 7, 8, 9]}]);
@@ -118,19 +154,32 @@ assert.eq(result, [{_id: null, setUnionArr: [1, 2, 3, 4, 5, 6, 7, 8, 9]}]);
 assert(coll.drop());
 
 // $setUnion dotted field, array halfway on path.
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 1, a: [{b: [1, 2, 3]}, {b: [4, 5, 6]}]},
         {_id: 2, a: [{b: [7, 8, 9]}, {b: [10, 11, 12]}]},
-    {_id: 3, a: [{b: [7, 8, 9]}]}
-]));
-result = coll.aggregate([
+        {_id: 3, a: [{b: [7, 8, 9]}]},
+    ]),
+);
+result = coll
+    .aggregate([
         {$sort: {_id: 1}},
-                 {$group: {_id: null, nums: {$setUnion: '$a.b'}}},
-                 {$project: {_id: 1, setUnionArr: {$sortArray: {input: '$nums', sortBy: 1}}}}
+        {$group: {_id: null, nums: {$setUnion: "$a.b"}}},
+        {$project: {_id: 1, setUnionArr: {$sortArray: {input: "$nums", sortBy: 1}}}},
     ])
     .toArray();
 
-assert.eq(result, [{_id: null, setUnionArr: [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]}]);
+assert.eq(result, [
+    {
+        _id: null,
+        setUnionArr: [
+            [1, 2, 3],
+            [4, 5, 6],
+            [7, 8, 9],
+            [10, 11, 12],
+        ],
+    },
+]);
 
 assert(coll.drop());
 
@@ -140,8 +189,7 @@ const notArrays = [1, "string", {object: "object"}, null];
 for (const notAnArray of notArrays) {
     assert.commandWorked(coll.insert([{_id: "doesNotMatter", vals: notAnArray}]));
 
-    assertErrorCode(
-        coll, [{$group: {_id: null, v: {$setUnion: '$vals'}}}], ErrorCodes.TypeMismatch);
+    assertErrorCode(coll, [{$group: {_id: null, v: {$setUnion: "$vals"}}}], ErrorCodes.TypeMismatch);
 
     assert.commandWorked(coll.deleteOne({_id: "doesNotMatter"}));
 }
@@ -149,24 +197,27 @@ for (const notAnArray of notArrays) {
 assert(coll.drop());
 
 // Basic test of $setUnion with grouping.
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 1, author: "Kyra", publisher: "Pub1", books: ["Book 1"]},
         {_id: 2, author: "Nick", publisher: "Pub3", books: ["Book 2"]},
         {_id: 3, author: "Santiago", publisher: "Pub3"},
-    {_id: 4, author: "Matt", publisher: "Pub3", books: ["Book 3"]}
-]));
+        {_id: 4, author: "Matt", publisher: "Pub3", books: ["Book 3"]},
+    ]),
+);
 
-result =
-    coll.aggregate([
-            {$group: {_id: '$publisher', booksByPublisher: {$setUnion: '$books'}}},
+result = coll
+    .aggregate([
+        {$group: {_id: "$publisher", booksByPublisher: {$setUnion: "$books"}}},
         {$sort: {_id: 1}},
-            {$project: {_id: 1, setUnionArr: {$sortArray: {input: '$booksByPublisher', sortBy: 1}}}}
+        {$project: {_id: 1, setUnionArr: {$sortArray: {input: "$booksByPublisher", sortBy: 1}}}},
     ])
     .toArray();
 
-assert.eq(
-    result,
-    [{_id: "Pub1", setUnionArr: ["Book 1"]}, {_id: "Pub3", setUnionArr: ["Book 2", "Book 3"]}]);
+assert.eq(result, [
+    {_id: "Pub1", setUnionArr: ["Book 1"]},
+    {_id: "Pub3", setUnionArr: ["Book 2", "Book 3"]},
+]);
 
 // Basic correctness tests for $setUnion used in $bucket and $bucketAuto. Though $bucket and
 // $bucketAuto use accumulators in the same way that $group does, the tests below verifies that
@@ -179,20 +230,23 @@ for (let i = 0; i < 10; i++) {
 coll.insertMany(docs);
 
 // $bucket
-result =
-    coll.aggregate([{
-            $bucket: {groupBy: '$_id', boundaries: [0, 5, 10], output: {nums: {$setUnion: "$arr"}}}
-        }])
+result = coll
+    .aggregate([
+        {
+            $bucket: {groupBy: "$_id", boundaries: [0, 5, 10], output: {nums: {$setUnion: "$arr"}}},
+        },
+    ])
     .toArray();
-assert.eq(result, [{"_id": 0, "nums": [42]}, {"_id": 5, "nums": [42]}]);
+assert.eq(result, [
+    {"_id": 0, "nums": [42]},
+    {"_id": 5, "nums": [42]},
+]);
 
 // $bucketAuto
-result =
-    coll.aggregate(
-            [{$bucketAuto: {groupBy: '$_id', buckets: 2, output: {nums: {$setUnion: "$arr"}}}}])
-        .toArray();
-assert.eq(
-    result,
-    [{"_id": {"min": 0, "max": 5}, "nums": [42]}, {"_id": {"min": 5, "max": 9}, "nums": [42]}]);
+result = coll.aggregate([{$bucketAuto: {groupBy: "$_id", buckets: 2, output: {nums: {$setUnion: "$arr"}}}}]).toArray();
+assert.eq(result, [
+    {"_id": {"min": 0, "max": 5}, "nums": [42]},
+    {"_id": {"min": 5, "max": 9}, "nums": [42]},
+]);
 
 assert(coll.drop());

jstests/aggregation/accumulators/set_union_spill_to_disk.js

@@ -22,17 +22,18 @@ assert.gt(coll.stats().size, memoryLimitMB * 1024 * 1024);
 
 // Test accumulating all values into one array. On debug builds we will spill to disk for $group and
 // so may hit the group error code before we hit ExceededMemoryLimit.
-const pipeline = [{$sort: {sortKey: 1}}, {$group: {_id: null, bigArray: {$setUnion: '$bigArr'}}}];
-const expectedCodes =
-    [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.ExceededMemoryLimit];
+const pipeline = [{$sort: {sortKey: 1}}, {$group: {_id: null, bigArray: {$setUnion: "$bigArr"}}}];
+const expectedCodes = [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.ExceededMemoryLimit];
 
 // Test that 'allowDiskUse: false' does indeed prevent spilling to disk.
 assert.commandFailedWithCode(
     db.runCommand({aggregate: coll.getName(), pipeline: pipeline, cursor: {}, allowDiskUse: false}),
-    expectedCodes);
+    expectedCodes,
+);
 
 // The $setUnion accumulator does not support spilling to disk, so ensure that it will fail even
 // when disk use is allowed.
 assert.commandFailedWithCode(
     db.runCommand({aggregate: coll.getName(), pipeline: pipeline, cursor: {}, allowDiskUse: true}),
-    expectedCodes);
+    expectedCodes,
+);

jstests/aggregation/accumulators/top_bottom_top_n_bottom_n.js

@@ -9,18 +9,21 @@ import "jstests/libs/query/sbe_assert_error_override.js";
 const coll = db[jsTestName()];
 coll.drop();
 
-const largestInt =
-    NumberDecimal("9223372036854775807");  // This is max int64 which is supported as N.
+const largestInt = NumberDecimal("9223372036854775807"); // This is max int64 which is supported as N.
 const largestIntPlus1 = NumberDecimal("9223372036854775808"); // Adding 1 puts it over the edge.
 
 // Makes a string for a unique sales associate name that looks like 'Jim the 4 from CA'.
-const associateName = (i, state) => ["Jim", "Pam", "Dwight", "Phyllis"][i % 4] + " the " +
-    parseInt(i / 4) + " from " + state;
+const associateName = (i, state) =>
+    ["Jim", "Pam", "Dwight", "Phyllis"][i % 4] + " the " + parseInt(i / 4) + " from " + state;
 
 // Basic correctness tests.
 let docs = [];
 const defaultN = 4;
-const states = [{state: "CA", sales: 10}, {state: "NY", sales: 7}, {state: "TX", sales: 4}];
+const states = [
+    {state: "CA", sales: 10},
+    {state: "NY", sales: 7},
+    {state: "TX", sales: 4},
+];
 let expectedBottomNAscResults = [];
 let expectedTopNAscResults = [];
 let expectedBottomNDescResults = [];
@@ -65,15 +68,15 @@ function buildTopNBottomNSpec(op, sortSpec, outputSpec, nValue) {
  * Helper that verifies that 'op' and 'sortSpec' produce 'expectedResults'.
  */
 function assertExpected(op, sortSpec, expectedResults) {
-    const actual =
-        coll.aggregate([
+    const actual = coll
+        .aggregate([
             {
                 $group: {
                     _id: "$state",
-                        associates: buildTopNBottomNSpec(op, sortSpec, "$associate", defaultN)
-                    }
+                    associates: buildTopNBottomNSpec(op, sortSpec, "$associate", defaultN),
                 },
-                {$sort: {_id: 1}}
+            },
+            {$sort: {_id: 1}},
         ])
         .toArray();
     assert.eq(expectedResults, actual);
@@ -84,15 +87,14 @@ function assertExpected(op, sortSpec, expectedResults) {
     // allows us to compare the $bucketAuto results to the expected $group results (because there
     // are more buckets than groups, it will always be the case that the min value of each bucket
     // corresponds to the group key).
-    let actualBucketAutoResults =
-        coll.aggregate([
+    let actualBucketAutoResults = coll
+        .aggregate([
             {
                 $bucketAuto: {
-                        groupBy: '$state',
+                    groupBy: "$state",
                     buckets: 10 * 1000,
-                        output:
-                            {associates: buildTopNBottomNSpec(op, sortSpec, "$associate", defaultN)}
-                    }
+                    output: {associates: buildTopNBottomNSpec(op, sortSpec, "$associate", defaultN)},
+                },
             },
             {$project: {_id: "$_id.min", associates: 1}},
             {$sort: {_id: 1}},
@@ -116,19 +118,18 @@ assertExpected("$bottomN", {sales: -1}, expectedBottomNDescResults);
 assertExpected("$topN", {sales: -1}, expectedTopNDescResults);
 
 // Verify that we can compute multiple topN/bottomN groupings in the same $group.
-const combinedGroup =
-    coll.aggregate([
+const combinedGroup = coll
+    .aggregate([
         {
             $group: {
                 _id: "$state",
                 bottomAsc: buildTopNBottomNSpec("$bottomN", {sales: 1}, "$associate", defaultN),
-                    bottomDesc:
-                        buildTopNBottomNSpec("$bottomN", {sales: -1}, "$associate", defaultN),
+                bottomDesc: buildTopNBottomNSpec("$bottomN", {sales: -1}, "$associate", defaultN),
                 topAsc: buildTopNBottomNSpec("$topN", {sales: 1}, "$associate", defaultN),
-                    topDesc: buildTopNBottomNSpec("$topN", {sales: -1}, "$associate", defaultN)
-                }
+                topDesc: buildTopNBottomNSpec("$topN", {sales: -1}, "$associate", defaultN),
             },
-            {$sort: {_id: 1}}
+        },
+        {$sort: {_id: 1}},
     ])
     .toArray();
 
@@ -143,25 +144,24 @@ for (const doc of combinedGroup) {
     topDesc.push({_id: doc["_id"], associates: doc["topDesc"]});
 }
 
-assert.eq([bottomAsc, bottomDesc, topAsc, topDesc], [
-    expectedBottomNAscResults,
-    expectedBottomNDescResults,
-    expectedTopNAscResults,
-    expectedTopNDescResults
-]);
+assert.eq(
+    [bottomAsc, bottomDesc, topAsc, topDesc],
+    [expectedBottomNAscResults, expectedBottomNDescResults, expectedTopNAscResults, expectedTopNDescResults],
+);
 
 // Verify that we can dynamically compute 'n' based on the group key for $group.
 const groupKeyNExpr = {
-    $cond: {if: {$eq: ["$st", "CA"]}, then: 10, else: 4}
+    $cond: {if: {$eq: ["$st", "CA"]}, then: 10, else: 4},
 };
-const dynamicBottomNResults =
-    coll.aggregate([{
+const dynamicBottomNResults = coll
+    .aggregate([
+        {
             $group: {
                 _id: {"st": "$state"},
-                bottomAssociates:
-                    {$bottomN: {output: "$associate", n: groupKeyNExpr, sortBy: {sales: 1}}}
-            }
-        }])
+                bottomAssociates: {$bottomN: {output: "$associate", n: groupKeyNExpr, sortBy: {sales: 1}}},
+            },
+        },
+    ])
     .toArray();
 
 // Verify that the 'CA' group has 10 results, while all others have only 4.
@@ -181,12 +181,13 @@ for (const result of dynamicBottomNResults) {
 
 // When output evaluates to missing for the single version, it should be promoted to null like in
 // $first.
-const outputMissing = coll.aggregate({
+const outputMissing = coll
+    .aggregate({
         $group: {
             _id: "",
             bottom: {$bottom: {output: "$b", sortBy: {sales: 1}}},
-                                  top: {$top: {output: "$b", sortBy: {sales: 1}}}
-                              }
+            top: {$top: {output: "$b", sortBy: {sales: 1}}},
+        },
     })
     .toArray();
 assert.eq(null, outputMissing[0]["top"]);
@@ -195,32 +196,39 @@ assert.eq(null, outputMissing[0]["bottom"]);
 // Error cases.
 
 // Cannot reference the group key in $bottomN when using $bucketAuto.
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [
+            {
                 $bucketAuto: {
                     groupBy: "$state",
                     buckets: 2,
                     output: {
-                bottomAssociates:
-                    {$bottomN: {output: "$associate", n: groupKeyNExpr, sortBy: {sales: 1}}}
-            }
-        }
-    }],
-    cursor: {}
+                        bottomAssociates: {$bottomN: {output: "$associate", n: groupKeyNExpr, sortBy: {sales: 1}}},
+                    },
+                },
+            },
+        ],
+        cursor: {},
     }),
-                             4544714);
+    4544714,
+);
 
 // Verify that 'n' cannot be greater than the largest signed 64 bit int.
-assert.commandFailedWithCode(coll.runCommand("aggregate", {
-    pipeline: [{
+assert.commandFailedWithCode(
+    coll.runCommand("aggregate", {
+        pipeline: [
+            {
                 $group: {
-            _id: {'st': '$state'},
-            sales: {$topN: {output: "$associate", n: largestIntPlus1, sortBy: {sales: 1}}}
-        }
-    }],
-    cursor: {}
+                    _id: {"st": "$state"},
+                    sales: {$topN: {output: "$associate", n: largestIntPlus1, sortBy: {sales: 1}}},
+                },
+            },
+        ],
+        cursor: {},
     }),
-                             5787903);
+    5787903,
+);
 
 assert(coll.drop());
 
@@ -235,7 +243,7 @@ function gameScoreGenerator(i) {
         _id: i,
         game: "G" + gameId,
         player: players[playerId] + Math.floor(i / players.length),
-        score: score
+        score: score,
     };
 }
 const nGames = 100;
@@ -247,28 +255,31 @@ assert.commandWorked(coll.insert(games));
 
 const gameSpec = {
     player: "$player",
-    score: "$score"
+    score: "$score",
 };
 for (const nVal of [defaultN, largestInt]) {
-    const gameResults =
-        coll.aggregate([{
+    const gameResults = coll
+        .aggregate([
+            {
                 $group: {
                     _id: "$game",
                     bottomAsc: buildTopNBottomNSpec("$bottomN", {score: 1}, gameSpec, nVal),
                     topAsc: buildTopNBottomNSpec("$topN", {score: 1}, gameSpec, nVal),
                     topDesc: buildTopNBottomNSpec("$topN", {score: -1}, gameSpec, nVal),
                     bottomDesc: buildTopNBottomNSpec("$bottomN", {score: -1}, gameSpec, nVal),
-                }
-            }])
+                },
+            },
+        ])
         .toArray();
 
     for (const doc of gameResults) {
         let assertResultsInOrder = function (index, fieldName, arr, isAsc) {
             const [first, second] = [arr[index - 1]["score"], arr[index]["score"]];
             const cmpResult = isAsc ? first < second : first > second;
-            assert(cmpResult,
-                   "Incorrect order from accumulator corresponding to field '" + fieldName +
-                       "'; results: " + tojson(arr));
+            assert(
+                cmpResult,
+                "Incorrect order from accumulator corresponding to field '" + fieldName + "'; results: " + tojson(arr),
+            );
         };
 
         let testFieldNames = function (fNames, isAsc) {
@@ -277,10 +288,11 @@ for (const nVal of [defaultN, largestInt]) {
                 // Verify that 'nVal' is greater or equal to the number of results returned.
                 // Note that we upconvert to NumberDecimal to account for 'largestInt' being a
                 // NumberDecimal.
-                assert.gte(NumberDecimal(nVal),
+                assert.gte(
+                    NumberDecimal(nVal),
                     NumberDecimal(arr.length),
-                           nVal + " is not GTE array length of " + tojson(arr) + " for field " +
-                               fieldName);
+                    nVal + " is not GTE array length of " + tojson(arr) + " for field " + fieldName,
+                );
                 for (let i = 1; i < arr.length; ++i) {
                     assertResultsInOrder(i, fieldName, arr, isAsc);
                 }
@@ -294,12 +306,14 @@ for (const nVal of [defaultN, largestInt]) {
 
 const rejectInvalidSpec = (op, assign, errCode, delProps = []) => {
     let spec = Object.assign({}, {output: "$associate", n: 2, sortBy: {sales: 1}}, assign);
-    delProps.forEach(delProp => delete spec[delProp]);
-    assert.commandFailedWithCode(coll.runCommand("aggregate", {
+    delProps.forEach((delProp) => delete spec[delProp]);
+    assert.commandFailedWithCode(
+        coll.runCommand("aggregate", {
             pipeline: [{$group: {_id: {"st": "$state"}, bottomAssociates: {[op]: spec}}}],
-        cursor: {}
+            cursor: {},
         }),
-                                 errCode);
+        errCode,
+    );
 };
 
 // Reject non-integral/negative values of n.
@@ -326,9 +340,8 @@ rejectInvalidSpec("$bottom", {}, 5788002);
 // Sort on embedded field.
 assert(coll.drop());
 assert.commandWorked(coll.insertMany([4, 2, 3, 1].map((i) => ({a: {b: i}}))));
-const embeddedResult =
-    coll.aggregate(
-            {$group: {_id: "", result: {$bottomN: {n: 3, output: "$a.b", sortBy: {"a.b": 1}}}}})
+const embeddedResult = coll
+    .aggregate({$group: {_id: "", result: {$bottomN: {n: 3, output: "$a.b", sortBy: {"a.b": 1}}}}})
     .toArray();
 assert.eq([2, 3, 4], embeddedResult[0].result);
 
@@ -336,16 +349,16 @@ assert.eq([2, 3, 4], embeddedResult[0].result);
 assert(coll.drop());
 const makeArray = (i) => [i, i + 1, i + 2];
 assert.commandWorked(coll.insertMany([4, 2, 3, 1].map((i) => ({a: makeArray(i)}))));
-const nestedResult =
-    coll.aggregate({$group: {_id: "", result: {$bottomN: {n: 3, output: "$a", sortBy: {"a": 1}}}}})
+const nestedResult = coll
+    .aggregate({$group: {_id: "", result: {$bottomN: {n: 3, output: "$a", sortBy: {"a": 1}}}}})
     .toArray();
 assert.eq([makeArray(2), makeArray(3), makeArray(4)], nestedResult[0].result);
 
 // Sort on doubly nested array.
 assert(coll.drop());
 assert.commandWorked(coll.insertMany([4, 2, 3, 1].map((i) => ({a: [makeArray(i)]}))));
-const doublyNestedResult =
-    coll.aggregate({$group: {_id: "", result: {$bottomN: {n: 3, output: "$a", sortBy: {"a": 1}}}}})
+const doublyNestedResult = coll
+    .aggregate({$group: {_id: "", result: {$bottomN: {n: 3, output: "$a", sortBy: {"a": 1}}}}})
     .toArray();
 assert.eq([[makeArray(2)], [makeArray(3)], [makeArray(4)]], doublyNestedResult[0].result);
 
@@ -354,54 +367,55 @@ coll.drop();
 const as = [1, 2, 3];
 const bs = [1, 2, 3];
 const crossProduct = (arr1, arr2) =>
-    arr1.map(a => arr2.map(b => ({a, b}))).reduce((docs, inner) => docs.concat(inner));
+    arr1.map((a) => arr2.map((b) => ({a, b}))).reduce((docs, inner) => docs.concat(inner));
 const fullAscending = crossProduct(as, bs);
 const aAscendingBDescending = crossProduct(as, bs.reverse());
 
 assert.commandWorked(coll.insertMany(fullAscending));
-const actualFullAscending =
-    coll.aggregate({
+const actualFullAscending = coll
+    .aggregate({
         $group: {
             _id: "",
-                sorted: {$bottomN: {n: 9, output: {a: "$a", b: "$b"}, sortBy: {a: 1, b: 1}}}
-            }
+            sorted: {$bottomN: {n: 9, output: {a: "$a", b: "$b"}, sortBy: {a: 1, b: 1}}},
+        },
     })
     .toArray();
 assert.eq(fullAscending, actualFullAscending[0]["sorted"]);
 
-const actualAAscendingBDescending =
-    coll.aggregate({
+const actualAAscendingBDescending = coll
+    .aggregate({
         $group: {
             _id: "",
-                sorted: {$bottomN: {n: 9, output: {a: "$a", b: "$b"}, sortBy: {a: 1, b: -1}}}
-            }
+            sorted: {$bottomN: {n: 9, output: {a: "$a", b: "$b"}, sortBy: {a: 1, b: -1}}},
+        },
     })
     .toArray();
 assert.eq(aAscendingBDescending, actualAAscendingBDescending[0]["sorted"]);
 
 // $meta sort specification.
 assert(coll.drop());
-assert.commandWorked(coll.insertMany(
-    ["apples apples pears", "pears pears", "apples apples apples", "apples doughnuts"].map(
-        text => ({text}))));
+assert.commandWorked(
+    coll.insertMany(
+        ["apples apples pears", "pears pears", "apples apples apples", "apples doughnuts"].map((text) => ({text})),
+    ),
+);
 assert.commandWorked(coll.createIndex({text: "text"}));
-const sortStageResult =
-    coll.aggregate(
-            [{$match: {$text: {$search: "apples pears"}}}, {$sort: {text: {$meta: "textScore"}}}])
+const sortStageResult = coll
+    .aggregate([{$match: {$text: {$search: "apples pears"}}}, {$sort: {text: {$meta: "textScore"}}}])
     .toArray()
-        .map(doc => doc["text"]);
+    .map((doc) => doc["text"]);
 const testOperatorText = (op) => {
-    const opNResult =
-        coll.aggregate([
+    const opNResult = coll
+        .aggregate([
             {$match: {$text: {$search: "apples pears"}}},
             {
                 $group: {
                     _id: "",
                     result: {
-                            [op]: {n: 4, output: "$text", sortBy: {"a.text": {$meta: "textScore"}}}
-                        }
-                    }
-                }
+                        [op]: {n: 4, output: "$text", sortBy: {"a.text": {$meta: "textScore"}}},
+                    },
+                },
+            },
         ])
         .toArray();
     assert.eq(opNResult.length, 1);
@@ -417,9 +431,8 @@ testOperatorText("$topN");
 assert(coll.drop());
 assert.commandWorked(coll.insertMany([{a: 1}, {a: 2}, {a: 3}]));
 const testConstantOutputAndSort = (op) => {
-    const results =
-        coll.aggregate(
-                [{$group: {_id: null, result: {[op]: {n: 3, output: "abc", sortBy: {a: 1}}}}}])
+    const results = coll
+        .aggregate([{$group: {_id: null, result: {[op]: {n: 3, output: "abc", sortBy: {a: 1}}}}}])
         .toArray();
     assert.eq(results.length, 1, results);
     assert.docEq(results[0], {_id: null, result: ["abc", "abc", "abc"]}, results);

jstests/aggregation/data/articles.js

@@ -11,8 +11,11 @@ testDb.article.save({
     posted: new Date(1079895594000),
     pageViews: 5,
     tags: ["fun", "good", "fun"],
-    comments: [{author: "joe", text: "this is cool"}, {author: "sam", text: "this is bad"}],
-    other: {foo: 5}
+    comments: [
+        {author: "joe", text: "this is cool"},
+        {author: "sam", text: "this is bad"},
+    ],
+    other: {foo: 5},
 });
 
 testDb.article.save({
@@ -24,9 +27,9 @@ testDb.article.save({
     tags: ["fun", "nasty"],
     comments: [
         {author: "barbara", text: "this is interesting"},
-        {author: "jenny", text: "i like to play pinball", votes: 10}
+        {author: "jenny", text: "i like to play pinball", votes: 10},
     ],
-    other: {bar: 14}
+    other: {bar: 14},
 });
 
 testDb.article.save({
@@ -38,7 +41,7 @@ testDb.article.save({
     tags: ["nasty", "filthy"],
     comments: [
         {author: "will", text: "i don't like the color"},
-        {author: "jenny", text: "can i get that in green?"}
+        {author: "jenny", text: "can i get that in green?"},
     ],
-    other: {bar: 14}
+    other: {bar: 14},
 });

jstests/aggregation/exec/agg_cursor.js

@@ -24,7 +24,7 @@ function buildAggCmd(pipeline, batchSize) {
     return {
         aggregate: t.getName(),
         pipeline: pipeline,
-        cursor: (batchSize === undefined ? {} : {batchSize: batchSize}),
+        cursor: batchSize === undefined ? {} : {batchSize: batchSize},
     };
 }
 
@@ -42,8 +42,7 @@ function aggCursor(pipeline, firstBatchSize, followupBatchSize) {
     const cmdOut = db.runCommand(buildAggCmd(pipeline, firstBatchSize));
     assert.commandWorked(cmdOut);
 
-    if (firstBatchSize !== undefined)
-        assert.lte(cmdOut.cursor.firstBatch.length, firstBatchSize);
+    if (firstBatchSize !== undefined) assert.lte(cmdOut.cursor.firstBatch.length, firstBatchSize);
 
     return makeCursor(cmdOut, followupBatchSize);
 }
@@ -53,24 +52,22 @@ function aggCursor(pipeline, firstBatchSize, followupBatchSize) {
 //
 
 let bigArray = [];
-for (let i = 0; i < 1000; i++)
-    bigArray.push(i);
+for (let i = 0; i < 1000; i++) bigArray.push(i);
 
 let bigStr = Array(1001).toString(); // 1000 bytes of ','
 
-for (let i = 0; i < 100; i++)
-    t.insert({_id: i, bigArray: bigArray, bigStr: bigStr});
+for (let i = 0; i < 100; i++) t.insert({_id: i, bigArray: bigArray, bigStr: bigStr});
 
 //
 // do testing
 //
 
 // successfully handles results > 16MB (bigArray.length * bytes in bigStr * t.count() == 100MB)
-let cursor = aggCursor([{$unwind: '$bigArray'}]);  // default settings
+let cursor = aggCursor([{$unwind: "$bigArray"}]); // default settings
 assert.eq(cursor.itcount(), bigArray.length * t.count());
-cursor = aggCursor([{$unwind: '$bigArray'}], 0);  // empty first batch
+cursor = aggCursor([{$unwind: "$bigArray"}], 0); // empty first batch
 assert.eq(cursor.itcount(), bigArray.length * t.count());
-cursor = aggCursor([{$unwind: '$bigArray'}], 5, 5);  // many small batches
+cursor = aggCursor([{$unwind: "$bigArray"}], 5, 5); // many small batches
 assert.eq(cursor.itcount(), bigArray.length * t.count());
 
 // empty result set results in cursor.id == 0 unless batchSize is 0;
@@ -87,12 +84,12 @@ res = t.runCommand(buildAggCmd([{$noSuchStage: 1}], 0));
 assert.commandFailed(res);
 
 // data dependent errors can get ok:1 but fail in getMore if they don't fail in first batch
-res = t.runCommand(buildAggCmd([{$project: {cantAddString: {$add: [1, '$bigStr']}}}], 1));
+res = t.runCommand(buildAggCmd([{$project: {cantAddString: {$add: [1, "$bigStr"]}}}], 1));
 assert.commandFailed(res);
 
 // Setting batchSize 0 doesn't guarantee that command will succeed: it may fail during plan
 // selection.
-res = t.runCommand(buildAggCmd([{$project: {cantAddString: {$add: [1, '$bigStr']}}}], 0));
+res = t.runCommand(buildAggCmd([{$project: {cantAddString: {$add: [1, "$bigStr"]}}}], 0));
 if (res.ok) {
     assert.throws(function () {
         makeCursor(res).itcount();
@@ -100,7 +97,7 @@ if (res.ok) {
 }
 
 // error if collection dropped after first batch
-cursor = aggCursor([{$unwind: '$bigArray'}], 0);
+cursor = aggCursor([{$unwind: "$bigArray"}], 0);
 t.drop();
 assert.throws(function () {
     cursor.itcount();

jstests/aggregation/exec/agg_drop_index.js

@@ -4,7 +4,7 @@ const docsPerBatch = 3;
 coll.drop();
 
 // Initialize collection with eight 1M documents, and index on field "a".
-const longString = 'x'.repeat(1024 * 1024);
+const longString = "x".repeat(1024 * 1024);
 for (let i = 0; i < 100; ++i) {
     assert.commandWorked(coll.insert({a: 1, bigField: longString}));
 }
@@ -25,8 +25,7 @@ assert.commandWorked(coll.dropIndex({a: 1}));
 try {
     cursor.hasNext();
     cursor.next();
-} catch (e) {
-}
+} catch (e) {}
 
 // Verify that the server hasn't crashed.
 assert.commandWorked(db.adminCommand({ping: 1}));

jstests/aggregation/exec/agg_large_result_handled_correctly.js

@@ -5,17 +5,19 @@ t.drop();
 
 // first 63MB
 for (let i = 0; i < 63; i++) {
-    assert.commandWorked(t.insert({a: 'a'.repeat(1024 * 1024)}));
+    assert.commandWorked(t.insert({a: "a".repeat(1024 * 1024)}));
 }
 
 // the remaining ~1MB with room for field names and other overhead
-assert.commandWorked(t.insert({a: 'a'.repeat(1024 * 1024 - 1106)}));
+assert.commandWorked(t.insert({a: "a".repeat(1024 * 1024 - 1106)}));
 
 // do not use cursor form, since it has a different workaroud for this issue.
-assert.commandFailed(db.runCommand({
+assert.commandFailed(
+    db.runCommand({
         aggregate: t.getName(),
-    pipeline: [{$match: {}}, {$group: {_id: null, arr: {$push: {a: '$a'}}}}]
-}));
+        pipeline: [{$match: {}}, {$group: {_id: null, arr: {$push: {a: "$a"}}}}],
+    }),
+);
 
 // Make sure the server is still up.
-assert.commandWorked(db.runCommand('ping'));
+assert.commandWorked(db.runCommand("ping"));

jstests/aggregation/exec/agg_timestamp.js

@@ -20,23 +20,24 @@ coll.drop();
 assert.commandWorked(coll.insertOne({date: new Timestamp(1341337661, 1)}));
 assert.commandWorked(coll.insertOne({date: new Date(1341337661000)}));
 // Aggregate checking various combinations of the constant and the field
-let agg_timestamp = coll.aggregate({
+let agg_timestamp = coll
+    .aggregate({
         $project: {
             _id: 0,
-                                dayOfMonth: {$dayOfMonth: '$date'},
-                                dayOfWeek: {$dayOfWeek: '$date'},
-                                dayOfYear: {$dayOfYear: '$date'},
-                                hour: {$hour: '$date'},
-                                minute: {$minute: '$date'},
-                                month: {$month: '$date'},
-                                second: {$second: '$date'},
-                                week: {$week: '$date'},
-                                year: {$year: '$date'}
-                            }
+            dayOfMonth: {$dayOfMonth: "$date"},
+            dayOfWeek: {$dayOfWeek: "$date"},
+            dayOfYear: {$dayOfYear: "$date"},
+            hour: {$hour: "$date"},
+            minute: {$minute: "$date"},
+            month: {$month: "$date"},
+            second: {$second: "$date"},
+            week: {$week: "$date"},
+            year: {$year: "$date"},
+        },
     })
     .toArray();
 // Assert the two entries are equal
-assert.eq(agg_timestamp[0], agg_timestamp[1], 'agg_timestamp failed');
+assert.eq(agg_timestamp[0], agg_timestamp[1], "agg_timestamp failed");
 
 // Clear db for timestamp to date compare test
 // For historical reasons the compare the same if they are the same 64-bit representation.
@@ -49,31 +50,30 @@ agg_timestamp = coll.aggregate({
     $project: {
         _id: 0,
         // comparison is different code path based on order (same as in bson)
-        ts_date: {$eq: ['$time', '$date']},
-        date_ts: {$eq: ['$date', '$time']}
-    }
+        ts_date: {$eq: ["$time", "$date"]},
+        date_ts: {$eq: ["$date", "$time"]},
+    },
 });
-assert.eq(agg_timestamp.toArray(),
-          [{ts_date: false, date_ts: false}, {ts_date: false, date_ts: false}]);
+assert.eq(agg_timestamp.toArray(), [
+    {ts_date: false, date_ts: false},
+    {ts_date: false, date_ts: false},
+]);
 
 // Clear db for timestamp comparison tests
 assert(coll.drop());
-assert.commandWorked(
-    coll.insertOne({time: new Timestamp(1341337661, 1), time2: new Timestamp(1341337661, 2)}));
+assert.commandWorked(coll.insertOne({time: new Timestamp(1341337661, 1), time2: new Timestamp(1341337661, 2)}));
 agg_timestamp = coll.aggregate({
     $project: {
         _id: 0,
-        cmp: {$cmp: ['$time', '$time2']},
-        eq: {$eq: ['$time', '$time2']},
-        gt: {$gt: ['$time', '$time2']},
-        gte: {$gte: ['$time', '$time2']},
-        lt: {$lt: ['$time', '$time2']},
-        lte: {$lte: ['$time', '$time2']},
-        ne: {$ne: ['$time', '$time2']}
-    }
+        cmp: {$cmp: ["$time", "$time2"]},
+        eq: {$eq: ["$time", "$time2"]},
+        gt: {$gt: ["$time", "$time2"]},
+        gte: {$gte: ["$time", "$time2"]},
+        lt: {$lt: ["$time", "$time2"]},
+        lte: {$lte: ["$time", "$time2"]},
+        ne: {$ne: ["$time", "$time2"]},
+    },
 });
-var agg_timestampresult =
-    [{cmp: -1, eq: false, gt: false, gte: false, lt: true, lte: true, ne: true}];
+var agg_timestampresult = [{cmp: -1, eq: false, gt: false, gte: false, lt: true, lte: true, ne: true}];
 // Assert the results are as expected
-assert.eq(
-    agg_timestamp.toArray(), agg_timestampresult, 'agg_timestamp failed comparing two timestamps');
+assert.eq(agg_timestamp.toArray(), agg_timestampresult, "agg_timestamp failed comparing two timestamps");

jstests/aggregation/exec/dbref.js

@@ -20,14 +20,16 @@ otherColl.drop();
 assert.commandWorked(otherColl.insert({_id: "id0", x: 1}));
 assert.commandWorked(otherColl.insert({_id: "id1", x: 2}));
 
-assert.commandWorked(coll.insert({
+assert.commandWorked(
+    coll.insert({
         _id: 0,
         link: new DBRef(otherColl.getName(), "id0", db.getName()),
         linkArray: [
             new DBRef(otherColl.getName(), "id0", db.getName()),
-        new DBRef(otherColl.getName(), "id1", db.getName())
-    ]
-}));
+            new DBRef(otherColl.getName(), "id1", db.getName()),
+        ],
+    }),
+);
 
 function projectOnlyPipeline(projection) {
     const aggRes = coll.aggregate({$project: projection}).toArray();
@@ -38,34 +40,36 @@ function projectOnlyPipeline(projection) {
 
 // Refer to a DBRef sub-field in a projection.
 assert.eq(projectOnlyPipeline({refVal: "$link.$ref"}), [{_id: 0, refVal: otherColl.getName()}]);
-assert.eq(projectOnlyPipeline({refVal: "$linkArray.$ref"}),
-          [{_id: 0, refVal: [otherColl.getName(), otherColl.getName()]}]);
+assert.eq(projectOnlyPipeline({refVal: "$linkArray.$ref"}), [
+    {_id: 0, refVal: [otherColl.getName(), otherColl.getName()]},
+]);
 
 assert.eq(projectOnlyPipeline({idVal: "$link.$id"}), [{_id: 0, idVal: "id0"}]);
 assert.eq(projectOnlyPipeline({idVal: "$linkArray.$id"}), [{_id: 0, idVal: ["id0", "id1"]}]);
 
 assert.eq(projectOnlyPipeline({idVal: "$link.$db"}), [{_id: 0, idVal: db.getName()}]);
-assert.eq(projectOnlyPipeline({idVal: "$linkArray.$db"}),
-          [{_id: 0, idVal: [db.getName(), db.getName()]}]);
+assert.eq(projectOnlyPipeline({idVal: "$linkArray.$db"}), [{_id: 0, idVal: [db.getName(), db.getName()]}]);
 
 // Use a DBRef sub-field in an expression.
 assert.eq(projectOnlyPipeline({idLen: {$strLenCP: "$link.$id"}}), [{_id: 0, idLen: "id0".length}]);
 
 // Project away DBRef values.
-assert.eq(projectOnlyPipeline({link: {$ref: 0}, linkArray: 0}),
-          [{_id: 0, link: {$id: "id0", $db: db.getName()}}]);
+assert.eq(projectOnlyPipeline({link: {$ref: 0}, linkArray: 0}), [{_id: 0, link: {$id: "id0", $db: db.getName()}}]);
 
-assert.eq(projectOnlyPipeline({link: 0, linkArray: {$id: 0}}), [{
+assert.eq(projectOnlyPipeline({link: 0, linkArray: {$id: 0}}), [
+    {
         _id: 0,
         linkArray: [
             {$ref: otherColl.getName(), $db: db.getName()},
-                  {$ref: otherColl.getName(), $db: db.getName()}
-              ]
-          }]);
+            {$ref: otherColl.getName(), $db: db.getName()},
+        ],
+    },
+]);
 
 // Assigning to a DBRef field.
-assert.eq(projectOnlyPipeline({link: {$ref: 1, $id: 1, $db: "someOtherDB"}}),
-          [{_id: 0, link: new DBRef(otherColl.getName(), "id0", "someOtherDB")}]);
+assert.eq(projectOnlyPipeline({link: {$ref: 1, $id: 1, $db: "someOtherDB"}}), [
+    {_id: 0, link: new DBRef(otherColl.getName(), "id0", "someOtherDB")},
+]);
 
 // While not a 'feature' we advertise, it is allowed to assign to top-level DBRef fields.
 assert.eq(projectOnlyPipeline({$ref: "$link.$ref"}), [{_id: 0, $ref: otherColl.getName()}]);
@@ -75,46 +79,61 @@ assert.eq(projectOnlyPipeline({$ref: "$link.$ref"}), [{_id: 0, $ref: otherColl.g
 assert.throwsWithCode(() => coll.aggregate({$project: {x: "$$ref"}}).toArray(), 17276);
 
 // It can be accessed through $$ROOT, however.
-assert.eq(coll.aggregate([
+assert.eq(
+    coll
+        .aggregate([
             // Rather than go through the trouble of inserting a document with a top-level
             // $-prefixed field, create one in an intermediate $project stage.
             {$project: {"$ref": "hello world"}},
             // Make sure that no optimization coalesces the above projection stage with the
             // below one.
             {$_internalInhibitOptimization: {}},
-                  {$project: {x: "$$ROOT.$ref"}}
+            {$project: {x: "$$ROOT.$ref"}},
         ])
         .toArray(),
-          [{_id: 0, x: "hello world"}]);
+    [{_id: 0, x: "hello world"}],
+);
 
 // Do a count (using $group) on a DBRef field.
-assert.eq(coll.aggregate({$group: {_id: "$link.$db", count: {$sum: 1}}}).toArray(),
-          [{_id: db.getName(), count: 1}]);
+assert.eq(coll.aggregate({$group: {_id: "$link.$db", count: {$sum: 1}}}).toArray(), [{_id: db.getName(), count: 1}]);
 
 // Refer to a DBRef field in an accumulator.
-assert.eq(coll.aggregate({$group: {_id: "$link.$db", count: {$sum: {$size: "$linkArray.$ref"}}}})
-              .toArray(),
-          [{_id: db.getName(), count: 2}]);
+assert.eq(coll.aggregate({$group: {_id: "$link.$db", count: {$sum: {$size: "$linkArray.$ref"}}}}).toArray(), [
+    {_id: db.getName(), count: 2},
+]);
 
 // Use $lookup with a DBRef.
 
 // Equality match version.
-const lookupEqualityPipeline = [{$lookup: {from: otherColl.getName(),
-                                           localField: "link.$id",
-                                           foreignField: "_id",
-                                           as: "joinedField"}},
-                        {$project: {link: 0, linkArray: 0}}];
-assert.eq(coll.aggregate(lookupEqualityPipeline).toArray(),
-          [{_id: 0, joinedField: [{_id: "id0", x: 1}]}]);
+const lookupEqualityPipeline = [
+    {$lookup: {from: otherColl.getName(), localField: "link.$id", foreignField: "_id", as: "joinedField"}},
+    {$project: {link: 0, linkArray: 0}},
+];
+assert.eq(coll.aggregate(lookupEqualityPipeline).toArray(), [{_id: 0, joinedField: [{_id: "id0", x: 1}]}]);
 
 // Foreign pipeline.
-const lookupSubPipePipeline = [{$lookup: {from: otherColl.getName(),
+const lookupSubPipePipeline = [
+    {
+        $lookup: {
+            from: otherColl.getName(),
             let: {idsWanted: "$linkArray.$id"},
             pipeline: [{$match: {$expr: {$in: ["$_id", "$$idsWanted"]}}}],
-                                          as: "joinedField"}},
-                        {$project: {link: 0, linkArray: 0}}];
-assert(anyEq(coll.aggregate(lookupSubPipePipeline).toArray(),
-             [{_id: 0, joinedField: [{_id: "id0", x: 1}, {_id: "id1", x: 2}]}]));
+            as: "joinedField",
+        },
+    },
+    {$project: {link: 0, linkArray: 0}},
+];
+assert(
+    anyEq(coll.aggregate(lookupSubPipePipeline).toArray(), [
+        {
+            _id: 0,
+            joinedField: [
+                {_id: "id0", x: 1},
+                {_id: "id1", x: 2},
+            ],
+        },
+    ]),
+);
 
 (function testGraphLookup() {
     // $graphLookup using DBRef.
@@ -122,28 +141,34 @@ assert(anyEq(coll.aggregate(lookupSubPipePipeline).toArray(),
     graphLookupColl.drop();
 
     // id0 -> id1 -> id2 -> id0
-    assert.commandWorked(graphLookupColl.insert(
-        {_id: "id0", link: new DBRef(graphLookupColl.getName(), "id1", db.getName())}));
-    assert.commandWorked(graphLookupColl.insert(
-        {_id: "id1", link: new DBRef(graphLookupColl.getName(), "id2", db.getName())}));
-    assert.commandWorked(graphLookupColl.insert(
-        {_id: "id2", link: new DBRef(graphLookupColl.getName(), "id0", db.getName())}));
+    assert.commandWorked(
+        graphLookupColl.insert({_id: "id0", link: new DBRef(graphLookupColl.getName(), "id1", db.getName())}),
+    );
+    assert.commandWorked(
+        graphLookupColl.insert({_id: "id1", link: new DBRef(graphLookupColl.getName(), "id2", db.getName())}),
+    );
+    assert.commandWorked(
+        graphLookupColl.insert({_id: "id2", link: new DBRef(graphLookupColl.getName(), "id0", db.getName())}),
+    );
 
     // id3 -> id4
-    assert.commandWorked(graphLookupColl.insert(
-        {_id: "id3", link: new DBRef(graphLookupColl.getName(), "id4", db.getName())}));
+    assert.commandWorked(
+        graphLookupColl.insert({_id: "id3", link: new DBRef(graphLookupColl.getName(), "id4", db.getName())}),
+    );
     assert.commandWorked(graphLookupColl.insert({_id: "id4", link: null}));
 
-    const graphLookupPipeline = [{
+    const graphLookupPipeline = [
+        {
             $graphLookup: {
                 from: graphLookupColl.getName(),
                 startWith: "$link.$id",
                 connectFromField: "link.$id",
                 connectToField: "_id",
-            as: "connectedDocuments"
-        }
+                as: "connectedDocuments",
             },
-                                 {$sort: {_id: 1}}];
+        },
+        {$sort: {_id: 1}},
+    ];
 
     const res = graphLookupColl.aggregate(graphLookupPipeline).toArray();
     // id0, id1, and id2 are all connected.
@@ -175,7 +200,7 @@ assert.commandWorked(coll.createIndex({"link.$ref": 1}, {unique: true}));
 thirdColl
     .aggregate([
         {$project: {"link.$ref": otherColl.getName(), "link.$id": "id0", sentinel: "foo"}},
-        {$merge: {into: coll.getName(), on: "link.$ref", whenMatched: "replace"}}
+        {$merge: {into: coll.getName(), on: "link.$ref", whenMatched: "replace"}},
     ])
     .itcount();
 
@@ -190,13 +215,14 @@ thirdColl
             $merge: {
                 into: coll.getName(),
                 on: "link.$ref",
-                whenMatched: [{
-                    $project:
-                        {"link.$ref": "otherRef", "link.$id": "otherId", "link.$db": "otherDB"}
-                }],
-                whenNotMatched: "discard"
-            }
-        }
+                whenMatched: [
+                    {
+                        $project: {"link.$ref": "otherRef", "link.$id": "otherId", "link.$db": "otherDB"},
+                    },
+                ],
+                whenNotMatched: "discard",
+            },
+        },
     ])
     .itcount();
 assert.eq(coll.find().toArray()[0], {_id: 0, link: new DBRef("otherRef", "otherId", "otherDB")});

jstests/aggregation/exec/empty_field_names.js

@@ -9,10 +9,7 @@ for (let i = 0; i < 50; ++i) {
     assert.commandWorked(coll.insert({"": 123, "b": 456, sortField: i}));
 }
 
-assert.eq(coll.aggregate([
-                  {$sort: {sortField: 1}},
-                  {$addFields: {"m": {$meta: "sortKey"}}},
-                  {$match: {"b": 456}}
-              ])
-              .itcount(),
-          kNumDocs);
+assert.eq(
+    coll.aggregate([{$sort: {sortField: 1}}, {$addFields: {"m": {$meta: "sortKey"}}}, {$match: {"b": 456}}]).itcount(),
+    kNumDocs,
+);

jstests/aggregation/exec/large_bson_mid_pipeline.js

@@ -6,7 +6,7 @@ const testDB = db.getSiblingDB("jsTestName");
 assert.commandWorked(testDB.dropDatabase());
 
 const coll = testDB.coll;
-const largeString = 'x'.repeat(10 * 1024 * 1024);
+const largeString = "x".repeat(10 * 1024 * 1024);
 assert.commandWorked(coll.insert({a: 1, b: largeString}));
 
 // Use '$addFields' to create extra-large documents in the middle of the pipeline followed by
@@ -15,7 +15,7 @@ const pipeline = [
     {$_internalInhibitOptimization: {}},
     {$addFields: {c: {$concat: ["$b", "-"]}}},
     {$match: {c: {$exists: true}}},
-    {$project: {a: 1}}
+    {$project: {a: 1}},
 ];
 
 assert.doesNotThrow(() => coll.aggregate(pipeline).toArray());

jstests/aggregation/exec/query_limits_test.js

@@ -47,10 +47,10 @@ function runAgg(pipeline) {
 function testLargeIn() {
     jsTestLog("Testing large $in");
     // Int limit is different than double limit.
-    const filterValsInts = range(1200000).map(i => NumberInt(i));
+    const filterValsInts = range(1200000).map((i) => NumberInt(i));
     runAgg([{$match: {a: {$in: filterValsInts}}}]);
 
-    const filterValsDoubles = range(1000000).map(i => i * 1.0);
+    const filterValsDoubles = range(1000000).map((i) => i * 1.0);
     runAgg([{$match: {a: {$in: filterValsDoubles}}}]);
 }
 
@@ -72,14 +72,16 @@ function testLargeBucket() {
     for (let i = 0; i < 100000; i++) {
         boundaries.push(i);
     }
-    runAgg([{
+    runAgg([
+        {
             $bucket: {
                 groupBy: "$a",
                 boundaries: boundaries,
                 default: "default",
-            output: {"count": {$sum: 1}}
-        }
-    }]);
+                output: {"count": {$sum: 1}},
+            },
+        },
+    ]);
 }
 
 // Construct a {$project: {a0: 1, a1: 1, ...}}.
@@ -111,7 +113,7 @@ function testLargeAndOrPredicates() {
     runAgg([{$match: largeMatch}]);
 
     function intStream(n) {
-        return range(n).map(i => NumberInt(i));
+        return range(n).map((i) => NumberInt(i));
     }
 
     const andOrFilters = [
@@ -149,7 +151,7 @@ function testLargeAndOrPredicates() {
         intStream(400000).map(function (i) {
             const field = "a" + i;
             return {[field]: {$exists: false}};
-        })
+        }),
     ];
     for (const m of andOrFilters) {
         runAgg([{$match: {$and: m}}]);
@@ -161,7 +163,7 @@ function testLongFieldNames() {
     jsTestLog("Testing $match with long field name");
     // Test with a long field name that's accepted by the server.
     {
-        const longFieldName = 'a'.repeat(10_000_000);
+        const longFieldName = "a".repeat(10_000_000);
         const predicate = {[longFieldName]: 1};
         runAgg([{$match: predicate}]);
         runAgg([{$match: {$and: [predicate]}}]);
@@ -170,7 +172,7 @@ function testLongFieldNames() {
 
     // Test with a field name that's too long, where the server rejects it.
     {
-        const extraLongFieldName = 'a'.repeat(17_000_000);
+        const extraLongFieldName = "a".repeat(17_000_000);
         const predicate = {[extraLongFieldName]: 1};
         assert.throwsWithCode(() => runAgg([{$match: predicate}]), 17260);
         assert.throwsWithCode(() => runAgg([{$match: {$and: [predicate]}}]), 17260);
@@ -192,9 +194,9 @@ function testDeeplyNestedPath() {
 // Test pipeline length.
 function testPipelineLimits() {
     jsTestLog("Testing large agg pipelines");
-    const pipelineLimit =
-        assert.commandWorked(db.adminCommand({getParameter: 1, internalPipelineLengthLimit: 1}))
-            .internalPipelineLengthLimit;
+    const pipelineLimit = assert.commandWorked(
+        db.adminCommand({getParameter: 1, internalPipelineLengthLimit: 1}),
+    ).internalPipelineLengthLimit;
     let stages = [
         {$limit: 1},
         {$skip: 1},
@@ -209,7 +211,7 @@ function testPipelineLimits() {
     ];
 
     for (const stage of stages) {
-        const pipeline = range(pipelineLimit).map(_ => stage);
+        const pipeline = range(pipelineLimit).map((_) => stage);
         jsTestLog(stage);
         runAgg(pipeline);
     }
@@ -223,13 +225,13 @@ function testPipelineLimits() {
 let fieldIndex = 0;
 function generateNestedAndOrHelper(type, branchingFactor, maxDepth) {
     if (maxDepth === 0) {
-        const field = 'a' + fieldIndex;
+        const field = "a" + fieldIndex;
         const query = {[field]: NumberInt(fieldIndex)};
         fieldIndex++;
         return query;
     }
 
-    const oppositeType = type === '$and' ? '$or' : '$and';
+    const oppositeType = type === "$and" ? "$or" : "$and";
     const children = [];
     for (let i = 0; i < branchingFactor; i++) {
         const childQuery = generateNestedAndOrHelper(oppositeType, branchingFactor, maxDepth - 1);
@@ -246,7 +248,7 @@ function generateNestedAndOr(type, branchingFactor, maxDepth) {
 
 function testNestedAndOr() {
     jsTestLog("Testing nested $and/$or");
-    for (const topLevelType of ['$and', '$or']) {
+    for (const topLevelType of ["$and", "$or"]) {
         // Test different types of nested queries
         let [branchingFactor, maxDepth] = [3, 10];
         const deepNarrowQuery = generateNestedAndOr(topLevelType, branchingFactor, maxDepth);
@@ -303,7 +305,7 @@ const tests = [
     testPipelineLimits,
     testLargeSetFunction,
     testLargeConcatFunction,
-    testLargeArrayToObjectFunction
+    testLargeArrayToObjectFunction,
 ];
 
 for (const test of tests) {

jstests/aggregation/exec/read_cached_scalar_or_removed_field.js

@@ -7,15 +7,18 @@
 const coll = db[jsTestName()];
 coll.drop();
 
-assert.commandWorked(coll.insertMany([
-    {_id: 1, "obj": {"obj": {}}},
-    {_id: 2},
-]));
+assert.commandWorked(coll.insertMany([{_id: 1, "obj": {"obj": {}}}, {_id: 2}]));
 
 // Update a field to scalar
-let results =
-    coll.aggregate([{$addFields: {"obj": null}}, {$sort: {"obj.obj": 1, _id: 1}}]).toArray();
-assert.eq(results, [{_id: 1, "obj": null}, {_id: 2, "obj": null}], results);
+let results = coll.aggregate([{$addFields: {"obj": null}}, {$sort: {"obj.obj": 1, _id: 1}}]).toArray();
+assert.eq(
+    results,
+    [
+        {_id: 1, "obj": null},
+        {_id: 2, "obj": null},
+    ],
+    results,
+);
 
 // Remove a field
 results = coll.aggregate([{$project: {"obj": 0}}, {$sort: {"obj.obj": 1, _id: 1}}]).toArray();

jstests/aggregation/exec/spill_to_disk.js

@@ -33,7 +33,7 @@ function setMemoryParamHelper(paramName, memoryLimit) {
         cmdObj: {
             setParameter: 1,
             [paramName]: memoryLimit,
-        }
+        },
     });
     assert.gt(commandResArr.length, 0, "Setting memory limit on primaries failed");
     const oldMemoryLimit = assert.commandWorked(commandResArr[0]).was;
@@ -66,24 +66,21 @@ assert.gt(coll.stats().size, memoryLimitMB * 1024 * 1024);
 function test({pipeline, expectedCodes, canSpillToDisk}) {
     // Test that 'allowDiskUse: false' does indeed prevent spilling to disk.
     assert.commandFailedWithCode(
-        db.runCommand(
-            {aggregate: coll.getName(), pipeline: pipeline, cursor: {}, allowDiskUse: false}),
-        expectedCodes);
+        db.runCommand({aggregate: coll.getName(), pipeline: pipeline, cursor: {}, allowDiskUse: false}),
+        expectedCodes,
+    );
 
     // If this command supports spilling to disk, ensure that it will succeed when disk use is
     // allowed.
-    const res = db.runCommand(
-        {aggregate: coll.getName(), pipeline: pipeline, cursor: {}, allowDiskUse: true});
+    const res = db.runCommand({aggregate: coll.getName(), pipeline: pipeline, cursor: {}, allowDiskUse: true});
     if (canSpillToDisk) {
-        assert.eq(new DBCommandCursor(coll.getDB(), res).itcount(),
-                  coll.count());  // all tests output one doc per input doc
+        assert.eq(new DBCommandCursor(coll.getDB(), res).itcount(), coll.count()); // all tests output one doc per input doc
 
         if (isSbeGroupLookupPushdownEnabled) {
             const explain = db.runCommand({
-                explain:
-                    {aggregate: coll.getName(), pipeline: pipeline, cursor: {}, allowDiskUse: true}
+                explain: {aggregate: coll.getName(), pipeline: pipeline, cursor: {}, allowDiskUse: true},
             });
-            const hashAggGroups = getSbePlanStages(explain, 'group');
+            const hashAggGroups = getSbePlanStages(explain, "group");
             if (hashAggGroups.length > 0) {
                 assert.eq(hashAggGroups.length, 1, explain);
                 const hashAggGroup = hashAggGroups[0];
@@ -101,7 +98,7 @@ function setHashAggParameters(memoryLimit, atLeast) {
         cmdObj: {
             setParameter: 1,
             internalQuerySlotBasedExecutionHashAggApproxMemoryUseInBytesBeforeSpill: memoryLimit,
-        }
+        },
     });
     assert.gt(memLimitCommandResArr.length, 0, "Setting memory limit on primaries failed.");
     const oldMemoryLimit = assert.commandWorked(memLimitCommandResArr[0]).was;
@@ -111,7 +108,7 @@ function setHashAggParameters(memoryLimit, atLeast) {
         cmdObj: {
             setParameter: 1,
             internalQuerySlotBasedExecutionHashAggMemoryCheckPerAdvanceAtLeast: atLeast,
-        }
+        },
     });
     assert.gt(atLeastCommandResArr.length, 0, "Setting atLeast limit on primaries failed.");
     const oldAtLeast = assert.commandWorked(atLeastCommandResArr[0]).was;
@@ -129,10 +126,10 @@ function testWithHashAggMemoryLimit({pipeline, expectedCodes, canSpillToDisk, me
 }
 
 testWithHashAggMemoryLimit({
-    pipeline: [{$group: {_id: '$_id', bigStr: {$min: '$bigStr'}}}],
+    pipeline: [{$group: {_id: "$_id", bigStr: {$min: "$bigStr"}}}],
     expectedCodes: ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed,
     canSpillToDisk: true,
-    memoryLimit: 1024
+    memoryLimit: 1024,
 });
 
 // Sorting with _id would use index which doesn't require external sort, so sort by 'random'
@@ -140,73 +137,70 @@ testWithHashAggMemoryLimit({
 test({
     pipeline: [{$sort: {random: 1}}],
     expectedCodes: ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed,
-    canSpillToDisk: true
+    canSpillToDisk: true,
 });
 
 test({
     pipeline: [{$sort: {bigStr: 1}}], // big key and value
     expectedCodes: ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed,
-    canSpillToDisk: true
+    canSpillToDisk: true,
 });
 
 // Test that sort + large limit won't crash the server (SERVER-10136)
 test({
     pipeline: [{$sort: {bigStr: 1}}, {$limit: 1000 * 1000 * 1000}],
     expectedCodes: ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed,
-    canSpillToDisk: true
+    canSpillToDisk: true,
 });
 
 // Test combining two external sorts in both same and different orders.
 test({
-    pipeline: [{$group: {_id: '$_id', bigStr: {$min: '$bigStr'}}}, {$sort: {_id: 1}}],
+    pipeline: [{$group: {_id: "$_id", bigStr: {$min: "$bigStr"}}}, {$sort: {_id: 1}}],
     expectedCodes: ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed,
-    canSpillToDisk: true
+    canSpillToDisk: true,
 });
 
 test({
-    pipeline: [{$group: {_id: '$_id', bigStr: {$min: '$bigStr'}}}, {$sort: {_id: -1}}],
+    pipeline: [{$group: {_id: "$_id", bigStr: {$min: "$bigStr"}}}, {$sort: {_id: -1}}],
     expectedCodes: ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed,
-    canSpillToDisk: true
+    canSpillToDisk: true,
 });
 
 test({
-    pipeline: [{$group: {_id: '$_id', bigStr: {$min: '$bigStr'}}}, {$sort: {random: 1}}],
+    pipeline: [{$group: {_id: "$_id", bigStr: {$min: "$bigStr"}}}, {$sort: {random: 1}}],
     expectedCodes: ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed,
-    canSpillToDisk: true
+    canSpillToDisk: true,
 });
 
 test({
-    pipeline: [{$sort: {random: 1}}, {$group: {_id: '$_id', bigStr: {$first: '$bigStr'}}}],
+    pipeline: [{$sort: {random: 1}}, {$group: {_id: "$_id", bigStr: {$first: "$bigStr"}}}],
     expectedCodes: ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed,
-    canSpillToDisk: true
+    canSpillToDisk: true,
 });
 
 // Test accumulating all values into one array. On debug builds we will spill to disk for $group and
 // so may hit the group error code before we hit ExceededMemoryLimit.
 test({
-    pipeline: [{$group: {_id: null, bigArray: {$push: '$bigStr'}}}],
-    expectedCodes:
-        [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.ExceededMemoryLimit],
-    canSpillToDisk: false
+    pipeline: [{$group: {_id: null, bigArray: {$push: "$bigStr"}}}],
+    expectedCodes: [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.ExceededMemoryLimit],
+    canSpillToDisk: false,
 });
 
 test({
-    pipeline:
-        [{$group: {_id: null, bigArray: {$addToSet: {$concat: ['$bigStr', {$toString: "$_id"}]}}}}],
-    expectedCodes:
-        [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.ExceededMemoryLimit],
-    canSpillToDisk: false
+    pipeline: [{$group: {_id: null, bigArray: {$addToSet: {$concat: ["$bigStr", {$toString: "$_id"}]}}}}],
+    expectedCodes: [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.ExceededMemoryLimit],
+    canSpillToDisk: false,
 });
 
-for (const op of ['$firstN', '$lastN', '$minN', '$maxN', '$topN', '$bottomN']) {
+for (const op of ["$firstN", "$lastN", "$minN", "$maxN", "$topN", "$bottomN"]) {
     jsTestLog("Testing op " + op);
     let spec = {n: 100000000};
-    if (op === '$topN' || op === '$bottomN') {
-        spec['sortBy'] = {random: 1};
-        spec['output'] = '$bigStr';
+    if (op === "$topN" || op === "$bottomN") {
+        spec["sortBy"] = {random: 1};
+        spec["output"] = "$bigStr";
     } else {
         // $firstN/$lastN/$minN/$maxN accept 'input'.
-        spec['input'] = '$bigStr';
+        spec["input"] = "$bigStr";
     }
 
     // By grouping all of the entries in the same group, it is the case that we will either
@@ -216,18 +210,17 @@ for (const op of ['$firstN', '$lastN', '$minN', '$maxN', '$topN', '$bottomN']) {
     // reduce the memory consumption of our group in this case.
     test({
         pipeline: [{$group: {_id: null, bigArray: {[op]: spec}}}],
-        expectedCodes:
-            [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.ExceededMemoryLimit],
-        canSpillToDisk: false
+        expectedCodes: [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed, ErrorCodes.ExceededMemoryLimit],
+        canSpillToDisk: false,
     });
 
     // Because each group uses less than the configured limit, but cumulatively they exceed
     // the limit for $group, we only check for 'QueryExceededMemoryLimitNoDiskUseAllowed'
     // when disk use is disabled.
     test({
-        pipeline: [{$group: {_id: '$_id', bigArray: {[op]: spec}}}],
+        pipeline: [{$group: {_id: "$_id", bigArray: {[op]: spec}}}],
         expectedCodes: [ErrorCodes.QueryExceededMemoryLimitNoDiskUseAllowed],
-        canSpillToDisk: true
+        canSpillToDisk: true,
     });
 }
 // don't leave large collection laying around
@@ -245,25 +238,23 @@ for (let i = 0; i < numGroups; ++i) {
             _id: counter++,
             a: i,
             b: 100 * i + j,
-            c: 100 * i + j % 5,
+            c: 100 * i + (j % 5),
             obj: {a: i, b: j},
-            random: Math.random()
+            random: Math.random(),
         };
         assert.commandWorked(coll.insert(doc));
     }
 }
 
 function setHashGroupMemoryParameters(memoryLimit) {
-    return setMemoryParamHelper(
-        "internalQuerySlotBasedExecutionHashAggApproxMemoryUseInBytesBeforeSpill", memoryLimit);
+    return setMemoryParamHelper("internalQuerySlotBasedExecutionHashAggApproxMemoryUseInBytesBeforeSpill", memoryLimit);
 }
 
 // Runs a group query containing the given 'accumulator' after sorting the data by the given
 // 'sortInputBy' field. Then verifies that the query results are equal to 'expectedOutput'. If SBE
 // is enabled, also runs explain and checks that the execution stats show that spilling occurred.
 function testAccumulator({accumulator, sortInputBy, expectedOutput, ignoreArrayOrder = false}) {
-    const pipeline =
-        [{$sort: {[sortInputBy]: 1}}, {$group: {_id: "$a", acc: accumulator}}, {$sort: {_id: 1}}];
+    const pipeline = [{$sort: {[sortInputBy]: 1}}, {$group: {_id: "$a", acc: accumulator}}, {$sort: {_id: 1}}];
     const results = coll.aggregate(pipeline).toArray();
 
     if (ignoreArrayOrder) {
@@ -289,9 +280,8 @@ function testSpillingForVariousAccumulators() {
             {_id: 1, acc: 100},
             {_id: 2, acc: 200},
             {_id: 3, acc: 300},
-            {_id: 4, acc: 400}
-        ]
-
+            {_id: 4, acc: 400},
+        ],
     });
 
     testAccumulator({
@@ -302,8 +292,8 @@ function testSpillingForVariousAccumulators() {
             {_id: 1, acc: 109},
             {_id: 2, acc: 209},
             {_id: 3, acc: 309},
-            {_id: 4, acc: 409}
-        ]
+            {_id: 4, acc: 409},
+        ],
     });
 
     testAccumulator({
@@ -314,8 +304,8 @@ function testSpillingForVariousAccumulators() {
             {_id: 1, acc: 100},
             {_id: 2, acc: 200},
             {_id: 3, acc: 300},
-            {_id: 4, acc: 400}
-        ]
+            {_id: 4, acc: 400},
+        ],
     });
 
     testAccumulator({
@@ -326,8 +316,8 @@ function testSpillingForVariousAccumulators() {
             {_id: 1, acc: 109},
             {_id: 2, acc: 209},
             {_id: 3, acc: 309},
-            {_id: 4, acc: 409}
-        ]
+            {_id: 4, acc: 409},
+        ],
     });
 
     testAccumulator({
@@ -338,8 +328,8 @@ function testSpillingForVariousAccumulators() {
             {_id: 1, acc: 1045},
             {_id: 2, acc: 2045},
             {_id: 3, acc: 3045},
-            {_id: 4, acc: 4045}
-        ]
+            {_id: 4, acc: 4045},
+        ],
     });
 
     testAccumulator({
@@ -350,8 +340,8 @@ function testSpillingForVariousAccumulators() {
             {_id: 1, acc: 104.5},
             {_id: 2, acc: 204.5},
             {_id: 3, acc: 304.5},
-            {_id: 4, acc: 404.5}
-        ]
+            {_id: 4, acc: 404.5},
+        ],
     });
 
     testAccumulator({
@@ -388,7 +378,7 @@ function testSpillingForVariousAccumulators() {
             {_id: 1, acc: {a: 1, b: 9}},
             {_id: 2, acc: {a: 2, b: 9}},
             {_id: 3, acc: {a: 3, b: 9}},
-            {_id: 4, acc: {a: 4, b: 9}}
+            {_id: 4, acc: {a: 4, b: 9}},
         ],
     });
 }
@@ -418,7 +408,9 @@ function setupCollections(localRecords, foreignRecords, foreignField) {
 
 function setHashLookupParameters(memoryLimit) {
     return setMemoryParamHelper(
-        "internalQuerySlotBasedExecutionHashLookupApproxMemoryUseInBytesBeforeSpill", memoryLimit);
+        "internalQuerySlotBasedExecutionHashLookupApproxMemoryUseInBytesBeforeSpill",
+        memoryLimit,
+    );
 }
 
 /**
@@ -433,23 +425,26 @@ function runTest_MultipleLocalForeignRecords({
     foreignRecords,
     foreignField,
     idsExpectedToMatch,
-    spillsToDisk
+    spillsToDisk,
 }) {
     setupCollections(localRecords, foreignRecords, foreignField);
-    const pipeline = [{
+    const pipeline = [
+        {
             $lookup: {
                 from: foreignColl.getName(),
                 localField: localField,
                 foreignField: foreignField,
-                                as: "matched"
-                            }}];
+                as: "matched",
+            },
+        },
+    ];
     const results = localColl.aggregate(pipeline, {allowDiskUse: true}).toArray();
-    const explain = localColl.explain('executionStats').aggregate(pipeline, {allowDiskUse: true});
+    const explain = localColl.explain("executionStats").aggregate(pipeline, {allowDiskUse: true});
     const pipelineWasSplit = !!explain.splitPipeline;
 
     // If sharding is enabled, or the pipeline was split, then '$lookup' is not pushed down to SBE.
     if (isSbeGroupLookupPushdownEnabled && !sharded && !pipelineWasSplit) {
-        const hLookups = getSbePlanStages(explain, 'hash_lookup');
+        const hLookups = getSbePlanStages(explain, "hash_lookup");
         assert.eq(hLookups.length, 1, explain);
         const hLookup = hLookups[0];
         assert(hLookup, explain);
@@ -465,12 +460,12 @@ function runTest_MultipleLocalForeignRecords({
 
     // Extract matched foreign ids from the "matched" field.
     for (let i = 0; i < results.length; i++) {
-        const matchedIds = results[i].matched.map(x => (x._id));
+        const matchedIds = results[i].matched.map((x) => x._id);
         // Order of the elements within the arrays is not significant for 'assertArrayEq'.
         assertArrayEq({
             actual: matchedIds,
             expected: idsExpectedToMatch[i],
-            extraErrorMsg: " **TEST** " + testDescription + " " + tojson(explain)
+            extraErrorMsg: " **TEST** " + testDescription + " " + tojson(explain),
         });
     }
 }
@@ -494,7 +489,7 @@ function runHashLookupSpill({memoryLimit, spillsToDisk}) {
             foreignRecords: docs,
             foreignField: "a",
             idsExpectedToMatch: [[1, 2, 4]],
-            spillsToDisk: spillsToDisk
+            spillsToDisk: spillsToDisk,
         });
     })();
 
@@ -526,20 +521,19 @@ function runHashLookupSpill({memoryLimit, spillsToDisk}) {
             foreignRecords: foreignDocs,
             foreignField: "b",
             idsExpectedToMatch: [[], [8], [9, 10], [11, 12, 13], [11, 12, 13], []],
-            spillsToDisk: spillsToDisk
+            spillsToDisk: spillsToDisk,
         });
     })();
 
     return oldSettings;
 }
 
-const oldMemSettings =
-    assert
-        .commandWorked(db.adminCommand({
+const oldMemSettings = assert.commandWorked(
+    db.adminCommand({
         getParameter: 1,
-            internalQuerySlotBasedExecutionHashLookupApproxMemoryUseInBytesBeforeSpill: 1
-        }))
-        .internalQuerySlotBasedExecutionHashLookupApproxMemoryUseInBytesBeforeSpill;
+        internalQuerySlotBasedExecutionHashLookupApproxMemoryUseInBytesBeforeSpill: 1,
+    }),
+).internalQuerySlotBasedExecutionHashLookupApproxMemoryUseInBytesBeforeSpill;
 
 (function runAllDiskTest() {
     try {

jstests/aggregation/exec/undefined.js

@@ -13,4 +13,4 @@ assert.eq(res[0].x, 0);
 // Make sure having an undefined doesn't break pipelines that do use the field
 res = t.aggregate({$project: {undef: 1}}).toArray();
 assert.eq(res[0].undef, undefined);
-assert.eq(typeof (res[0].undef), "undefined");
+assert.eq(typeof res[0].undef, "undefined");

jstests/aggregation/exec/value_coerce_to_bool.js

@@ -29,8 +29,8 @@ assertBoolValue(true, 1.0);
 assertBoolValue(false, null);
 
 // Always true types.
-assertBoolValue(true, '');
-assertBoolValue(true, 'a');
+assertBoolValue(true, "");
+assertBoolValue(true, "a");
 assertBoolValue(true, "$object");
 assertBoolValue(true, []);
 assertBoolValue(true, [1]);
@@ -40,4 +40,4 @@ assertBoolValue(true, /a/);
 assertBoolValue(true, new Timestamp());
 
 // Missing field.
-assertBoolValue(false, '$missingField');
+assertBoolValue(false, "$missingField");

jstests/aggregation/explain/explain.js

@@ -11,8 +11,8 @@ assert.commandWorked(coll.createIndex({y: 1}));
 
 let result = coll.explain().aggregate([{$match: {x: 1, y: 1}}]);
 assert.eq(null, getAggPlanStage(result, "CACHED_PLAN"));
-assert(result.hasOwnProperty('serverInfo'), result);
-assert.hasFields(result.serverInfo, ['host', 'port', 'version', 'gitVersion']);
+assert(result.hasOwnProperty("serverInfo"), result);
+assert.hasFields(result.serverInfo, ["host", "port", "version", "gitVersion"]);
 
 // At this point, there should be no entries in the plan cache.
 result = coll.explain().aggregate([{$match: {x: 1, y: 1}}]);
@@ -29,6 +29,6 @@ assert.eq(null, getAggPlanStage(result, "CACHED_PLAN"));
 // into the query layer. In these cases we use a different explain mechanism. Using $lookup will
 // prevent this optimization and stress an explain implementation in the aggregation layer. Test
 // that this implementation also includes serverInfo.
-result = coll.explain().aggregate([{$lookup: {from: 'other_coll', pipeline: [], as: 'docs'}}]);
-assert(result.hasOwnProperty('serverInfo'), result);
-assert.hasFields(result.serverInfo, ['host', 'port', 'version', 'gitVersion']);
+result = coll.explain().aggregate([{$lookup: {from: "other_coll", pipeline: [], as: "docs"}}]);
+assert(result.hasOwnProperty("serverInfo"), result);
+assert.hasFields(result.serverInfo, ["host", "port", "version", "gitVersion"]);

jstests/aggregation/explain/explain_limit.js

@@ -38,8 +38,8 @@ function checkResults({results, verbosity}) {
             const execStatsStages = getAggPlanStages(results, "limit");
             assert.gt(queryPlannerStages.length, 0, results);
             assert.gt(execStatsStages.length, 0, results);
-            const planNodeIds = new Set(queryPlannerStages.map(stage => stage.planNodeId));
-            return [execStatsStages.filter(stage => planNodeIds.has(stage.planNodeId)), "limit"];
+            const planNodeIds = new Set(queryPlannerStages.map((stage) => stage.planNodeId));
+            return [execStatsStages.filter((stage) => planNodeIds.has(stage.planNodeId)), "limit"];
         }
         return [getAggPlanStages(results, "LIMIT"), "limitAmount"];
     })();

jstests/aggregation/explain/explain_options_helper.js

@@ -9,7 +9,7 @@ for (let i = 0; i < 10; ++i) {
 }
 
 const collation = {
-    collation: {locale: "zh", backwards: false}
+    collation: {locale: "zh", backwards: false},
 };
 
 const firstResults = coll.aggregate([{$sort: {_id: 1}}], collation).toArray();

jstests/aggregation/explain/explain_per_stage_exec_stats.js

@@ -33,7 +33,7 @@ const pipelineShardedStages = [
     {$skip: 100},
     {$project: {arr: 0}},
     {$group: {_id: "$b", count: {$sum: 1}}},
-    {$limit: 10}
+    {$limit: 10},
 ];
 
 // Test explain output where the shards part of the pipeline can be optimized away.
@@ -48,7 +48,7 @@ const pipelineNoShardedStages = [
     {$sort: {a: -1}},
     {$project: {arr: 0}},
     {$group: {_id: "$b", count: {$sum: 1}}},
-    {$limit: 10}
+    {$limit: 10},
 ];
 
 // Verify behavior of a nested pipeline.
@@ -115,18 +115,14 @@ function checkResults(result, assertExecutionStatsCallback) {
 }
 
 for (let pipeline of [pipelineShardedStages, pipelineNoShardedStages, facet]) {
-    checkResults(coll.explain("executionStats").aggregate(pipeline),
-                 assertStageExecutionStatsPresent);
-    checkResults(coll.explain("allPlansExecution").aggregate(pipeline),
-                 assertStageExecutionStatsPresent);
+    checkResults(coll.explain("executionStats").aggregate(pipeline), assertStageExecutionStatsPresent);
+    checkResults(coll.explain("allPlansExecution").aggregate(pipeline), assertStageExecutionStatsPresent);
 }
 
 // Only test $changeStream if we are on a replica set or on a sharded cluster.
 if (FixtureHelpers.isReplSet(db) || FixtureHelpers.isSharded(coll)) {
-    checkResults(coll.explain("executionStats").aggregate(changeStream),
-                 assertStageExecutionStatsPresent);
-    checkResults(coll.explain("allPlansExecution").aggregate(changeStream),
-                 assertStageExecutionStatsPresent);
+    checkResults(coll.explain("executionStats").aggregate(changeStream), assertStageExecutionStatsPresent);
+    checkResults(coll.explain("allPlansExecution").aggregate(changeStream), assertStageExecutionStatsPresent);
 }
 
 // Returns the number of documents
@@ -142,8 +138,7 @@ function numberOfDocsReturnedByMatchStage(explain) {
 }
 
 const matchPipeline = [{$_internalInhibitOptimization: {}}, {$match: {a: {$gte: 500}}}];
-assert.eq(numberOfDocsReturnedByMatchStage(coll.explain("executionStats").aggregate(matchPipeline)),
-          500);
+assert.eq(numberOfDocsReturnedByMatchStage(coll.explain("executionStats").aggregate(matchPipeline)), 500);
 
 // Checks $group totalOutputDataSizeBytes execution statistic.
 (function testGroupStatTotalDataSizeBytes() {

jstests/aggregation/explain/explain_writing_aggs.js

@@ -21,10 +21,12 @@ assert.commandWorked(sourceColl.insert({_id: 1}));
 // Verifies that running the execution explains do not error, perform any writes, or create the
 // target collection.
 function assertExecutionExplainOk(writingStage, verbosity) {
-    assert.commandWorked(db.runCommand({
+    assert.commandWorked(
+        db.runCommand({
             explain: {aggregate: sourceColl.getName(), pipeline: [writingStage], cursor: {}},
-        verbosity: verbosity
-    }));
+            verbosity: verbosity,
+        }),
+    );
     assert.eq(targetColl.find().itcount(), 0);
     // Verify that the collection was not created.
     const collectionList = db.getCollectionInfos({name: targetColl.getName()});
@@ -34,8 +36,7 @@ function assertExecutionExplainOk(writingStage, verbosity) {
 // Test that $out can be explained with 'queryPlanner' explain verbosity and does not perform
 // any writes.
 let explain = sourceColl.explain("queryPlanner").aggregate([{$out: targetColl.getName()}]);
-let explainedPipeline =
-    getExplainPipelineFromAggregationResult(explain, {inhibitOptimization: false});
+let explainedPipeline = getExplainPipelineFromAggregationResult(explain, {inhibitOptimization: false});
 assert.eq(1, explainedPipeline.length);
 assert(explainedPipeline[0].$out);
 let outExplain = explainedPipeline[0];
@@ -55,8 +56,8 @@ withEachMergeMode(function({whenMatchedMode, whenNotMatchedMode}) {
         $merge: {
             into: targetColl.getName(),
             whenMatched: whenMatchedMode,
-            whenNotMatched: whenNotMatchedMode
-        }
+            whenNotMatched: whenNotMatchedMode,
+        },
     };
 
     // Verify that execution explains don't error for $merge.
@@ -64,8 +65,7 @@ withEachMergeMode(function({whenMatchedMode, whenNotMatchedMode}) {
     assertExecutionExplainOk(mergeStage, "allPlansExecution");
 
     const explain = sourceColl.explain("queryPlanner").aggregate([mergeStage]);
-    let explainedPipeline =
-        getExplainPipelineFromAggregationResult(explain, {inhibitOptimization: false});
+    let explainedPipeline = getExplainPipelineFromAggregationResult(explain, {inhibitOptimization: false});
     assert.eq(1, explainedPipeline.length);
     assert(explainedPipeline[0].$merge);
     const mergeExplain = explainedPipeline[0];

jstests/aggregation/expressions/add.js

@@ -14,24 +14,21 @@ assert.eq(result[0]["y"], 0);
 // Confirm that we're not using DoubleDoubleSummation for $add expression with a set of double
 // values.
 let arr = [
-    1.4831356930199802e-05, -3.121724665346865,     3041897608700.073,       1001318343149.7166,
-    -1714.6229586696593,    1731390114894580.8,     6.256645803154374e-08,   -107144114533844.25,
-    -0.08839485091750919,   -265119153.02185738,    -0.02450615965231944,    0.0002684331017079073,
-    32079040427.68358,      -0.04733295911845742,   0.061381859083076085,    -25329.59126796951,
-    -0.0009567520620034965, -1553879364344.9932,    -2.1101077525869814e-08, -298421079729.5547,
-    0.03182394834273594,    22.201944843278916,     -33.35667991109125,      11496013.960449915,
-    -40652595.33210472,     3.8496066090328163,     2.5074042398147304e-08,  -0.02208724071782122,
-    -134211.37290639878,    0.17640433666616578,    4.463787499171126,       9.959669945399718,
-    129265976.35224283,     1.5865526187526546e-07, -4746011.710555799,      -712048598925.0789,
-    582214206210.4034,      0.025236204812875362,   530078170.91147506,      -14.865307666195053,
-    1.6727994895185032e-05, -113386276.03121366,    -6.135827207137054,      10644945799901.145,
-    -100848907797.1582,     2.2404406961625282e-08, 1.315662618424494e-09,   -0.832190208349044,
-    -9.779323414999364,     -546522170658.2997
+    1.4831356930199802e-5, -3.121724665346865, 3041897608700.073, 1001318343149.7166, -1714.6229586696593,
+    1731390114894580.8, 6.256645803154374e-8, -107144114533844.25, -0.08839485091750919, -265119153.02185738,
+    -0.02450615965231944, 0.0002684331017079073, 32079040427.68358, -0.04733295911845742, 0.061381859083076085,
+    -25329.59126796951, -0.0009567520620034965, -1553879364344.9932, -2.1101077525869814e-8, -298421079729.5547,
+    0.03182394834273594, 22.201944843278916, -33.35667991109125, 11496013.960449915, -40652595.33210472,
+    3.8496066090328163, 2.5074042398147304e-8, -0.02208724071782122, -134211.37290639878, 0.17640433666616578,
+    4.463787499171126, 9.959669945399718, 129265976.35224283, 1.5865526187526546e-7, -4746011.710555799,
+    -712048598925.0789, 582214206210.4034, 0.025236204812875362, 530078170.91147506, -14.865307666195053,
+    1.6727994895185032e-5, -113386276.03121366, -6.135827207137054, 10644945799901.145, -100848907797.1582,
+    2.2404406961625282e-8, 1.315662618424494e-9, -0.832190208349044, -9.779323414999364, -546522170658.2997,
 ];
 let doc = {_id: 0};
 let i = 0;
 let queryArr = [];
-arr.forEach(num => {
+arr.forEach((num) => {
     i++;
     doc[`f_${i}`] = num;
     queryArr.push(`$f_${i}`);
@@ -43,7 +40,10 @@ assert.commandWorked(coll.insert(doc));
 let addResult = coll.aggregate([{$project: {add: {$add: queryArr}}}]).toArray();
 let sumResult = coll.aggregate([{$project: {sum: {$sum: queryArr}}}]).toArray();
 assert.neq(addResult[0]["add"], sumResult[0]["sum"]);
-assert.eq(addResult[0]["add"], arr.reduce((a, b) => a + b));
+assert.eq(
+    addResult[0]["add"],
+    arr.reduce((a, b) => a + b),
+);
 
 assert.eq(true, coll.drop());
 // Doubles are rounded to int64 when added to Date
@@ -52,17 +52,12 @@ assert.commandWorked(coll.insert({_id: 1, lhs: new Date(1683794065002), rhs: 1.4
 assert.commandWorked(coll.insert({_id: 2, lhs: new Date(1683794065002), rhs: 1.5}));
 assert.commandWorked(coll.insert({_id: 3, lhs: new Date(1683794065002), rhs: 1.7}));
 // Decimals are rounded to int64, when tie rounded to even, when added to Date
-assert.commandWorked(
-    coll.insert({_id: 4, lhs: new Date(1683794065002), rhs: new NumberDecimal("1.4")}));
-assert.commandWorked(
-    coll.insert({_id: 5, lhs: new Date(1683794065002), rhs: new NumberDecimal("1.5")}));
-assert.commandWorked(
-    coll.insert({_id: 6, lhs: new Date(1683794065002), rhs: new NumberDecimal("1.7")}));
-assert.commandWorked(
-    coll.insert({_id: 7, lhs: new Date(1683794065002), rhs: new NumberDecimal("2.5")}));
+assert.commandWorked(coll.insert({_id: 4, lhs: new Date(1683794065002), rhs: new NumberDecimal("1.4")}));
+assert.commandWorked(coll.insert({_id: 5, lhs: new Date(1683794065002), rhs: new NumberDecimal("1.5")}));
+assert.commandWorked(coll.insert({_id: 6, lhs: new Date(1683794065002), rhs: new NumberDecimal("1.7")}));
+assert.commandWorked(coll.insert({_id: 7, lhs: new Date(1683794065002), rhs: new NumberDecimal("2.5")}));
 
-let result1 =
-    coll.aggregate([{$project: {sum: {$add: ["$lhs", "$rhs"]}}}, {$sort: {_id: 1}}]).toArray();
+let result1 = coll.aggregate([{$project: {sum: {$add: ["$lhs", "$rhs"]}}}, {$sort: {_id: 1}}]).toArray();
 assert.eq(result1[0].sum, new Date(1683794065003));
 assert.eq(result1[1].sum, new Date(1683794065003));
 assert.eq(result1[2].sum, new Date(1683794065004));
@@ -74,12 +69,16 @@ assert.eq(result1[7].sum, new Date(1683794065004));
 
 coll.drop();
 
-assert.commandWorked(coll.insert([{
+assert.commandWorked(
+    coll.insert([
+        {
             _id: 0,
             veryBigPositiveLong: NumberLong("9223372036854775806"),
             veryBigPositiveDouble: 9223372036854775806,
-    veryBigPositiveDecimal: NumberDecimal("9223372036854775806")
-}]));
+            veryBigPositiveDecimal: NumberDecimal("9223372036854775806"),
+        },
+    ]),
+);
 
 let pipeline = [{$project: {res: {$add: [new Date(10), "$veryBigPositiveLong"]}}}];
 assertErrCodeAndErrMsgContains(coll, pipeline, ErrorCodes.Overflow, "date overflow");

jstests/aggregation/expressions/add_error_on_str.js

@@ -8,18 +8,10 @@ c.drop();
 c.save({x: 17, y: "foo"});
 
 // 16554 was the code used instead of TypeMismatch before 6.1.
-assertErrorCode(
-    c, {$project: {string_fields: {$add: [3, "$y", 4, "$y"]}}}, [16554, ErrorCodes.TypeMismatch]);
-assertErrorCode(c,
-                {$project: {number_fields: {$add: ["a", "$x", "b", "$x"]}}},
-                [16554, ErrorCodes.TypeMismatch]);
-assertErrorCode(
-    c, {$project: {all_strings: {$add: ["c", "$y", "d", "$y"]}}}, [16554, ErrorCodes.TypeMismatch]);
-assertErrorCode(
-    c, {$project: {potpourri_1: {$add: [5, "$y", "e", "$x"]}}}, [16554, ErrorCodes.TypeMismatch]);
-assertErrorCode(
-    c, {$project: {potpourri_2: {$add: [6, "$x", "f", "$y"]}}}, [16554, ErrorCodes.TypeMismatch]);
-assertErrorCode(
-    c, {$project: {potpourri_3: {$add: ["g", "$y", 7, "$x"]}}}, [16554, ErrorCodes.TypeMismatch]);
-assertErrorCode(
-    c, {$project: {potpourri_4: {$add: ["h", "$x", 8, "$y"]}}}, [16554, ErrorCodes.TypeMismatch]);
+assertErrorCode(c, {$project: {string_fields: {$add: [3, "$y", 4, "$y"]}}}, [16554, ErrorCodes.TypeMismatch]);
+assertErrorCode(c, {$project: {number_fields: {$add: ["a", "$x", "b", "$x"]}}}, [16554, ErrorCodes.TypeMismatch]);
+assertErrorCode(c, {$project: {all_strings: {$add: ["c", "$y", "d", "$y"]}}}, [16554, ErrorCodes.TypeMismatch]);
+assertErrorCode(c, {$project: {potpourri_1: {$add: [5, "$y", "e", "$x"]}}}, [16554, ErrorCodes.TypeMismatch]);
+assertErrorCode(c, {$project: {potpourri_2: {$add: [6, "$x", "f", "$y"]}}}, [16554, ErrorCodes.TypeMismatch]);
+assertErrorCode(c, {$project: {potpourri_3: {$add: ["g", "$y", 7, "$x"]}}}, [16554, ErrorCodes.TypeMismatch]);
+assertErrorCode(c, {$project: {potpourri_4: {$add: ["h", "$x", 8, "$y"]}}}, [16554, ErrorCodes.TypeMismatch]);

jstests/aggregation/expressions/add_subtract_dates.js

@@ -22,14 +22,14 @@ function fail(expression, code) {
     assertErrorCode(coll, {$project: {out: expression}}, code);
 }
 
-test({$subtract: ['$date', '$date']}, NumberLong(0));
-test({$subtract: ['$date', '$num']}, new Date(millis - num));
-fail({$subtract: ['$num', '$date']}, [16556, ErrorCodes.TypeMismatch]);
+test({$subtract: ["$date", "$date"]}, NumberLong(0));
+test({$subtract: ["$date", "$num"]}, new Date(millis - num));
+fail({$subtract: ["$num", "$date"]}, [16556, ErrorCodes.TypeMismatch]);
 
-fail({$add: ['$date', '$date']}, 16612);
-test({$add: ['$date', '$num']}, new Date(millis + num));
-test({$add: ['$num', '$date']}, new Date(millis + num));
+fail({$add: ["$date", "$date"]}, 16612);
+test({$add: ["$date", "$num"]}, new Date(millis + num));
+test({$add: ["$num", "$date"]}, new Date(millis + num));
 
 // addition supports any number of arguments
-test({$add: ['$date']}, new Date(millis));
-test({$add: ['$num', '$date', '$num']}, new Date(millis + num + num));
+test({$add: ["$date"]}, new Date(millis));
+test({$add: ["$num", "$date", "$num"]}, new Date(millis + num + num));

jstests/aggregation/expressions/add_with_date.js

@@ -9,7 +9,8 @@ function getResultOfExpression(expr) {
     return resultArray[0].computed;
 }
 
-assert.commandWorked(coll.insert({
+assert.commandWorked(
+    coll.insert({
         _id: 0,
         decimalVal: NumberDecimal("819.5359123621083"),
         doubleVal: 819.536,
@@ -21,110 +22,115 @@ assert.commandWorked(coll.insert({
         overflowInt64: NumberLong("9223372036854775807"),
         nanDouble: NaN,
         nanDecimal: NumberDecimal("NaN"),
-}));
+    }),
+);
 
 // Adding a Decimal128 value to a date literal.
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: ["$decimalVal", ISODate("2019-01-30T07:30:10.137Z")]}));
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: [ISODate("2019-01-30T07:30:10.137Z"), "$decimalVal"]}));
+assert.eq(
+    ISODate("2019-01-30T07:30:10.957Z"),
+    getResultOfExpression({$add: ["$decimalVal", ISODate("2019-01-30T07:30:10.137Z")]}),
+);
+assert.eq(
+    ISODate("2019-01-30T07:30:10.957Z"),
+    getResultOfExpression({$add: [ISODate("2019-01-30T07:30:10.137Z"), "$decimalVal"]}),
+);
 
 // Adding a Decimal128 literal to a date value.
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: ["$dateVal", NumberDecimal("819.5359123621083")]}));
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: [NumberDecimal("819.5359123621083"), "$dateVal"]}));
+assert.eq(
+    ISODate("2019-01-30T07:30:10.957Z"),
+    getResultOfExpression({$add: ["$dateVal", NumberDecimal("819.5359123621083")]}),
+);
+assert.eq(
+    ISODate("2019-01-30T07:30:10.957Z"),
+    getResultOfExpression({$add: [NumberDecimal("819.5359123621083"), "$dateVal"]}),
+);
 
 // Adding a Decimal128 value to a date value.
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: ["$dateVal", "$decimalVal"]}));
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: ["$decimalVal", "$dateVal"]}));
+assert.eq(ISODate("2019-01-30T07:30:10.957Z"), getResultOfExpression({$add: ["$dateVal", "$decimalVal"]}));
+assert.eq(ISODate("2019-01-30T07:30:10.957Z"), getResultOfExpression({$add: ["$decimalVal", "$dateVal"]}));
 
 // Adding a double value to a date value.
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: ["$dateVal", "$doubleVal"]}));
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: ["$doubleVal", "$dateVal"]}));
+assert.eq(ISODate("2019-01-30T07:30:10.957Z"), getResultOfExpression({$add: ["$dateVal", "$doubleVal"]}));
+assert.eq(ISODate("2019-01-30T07:30:10.957Z"), getResultOfExpression({$add: ["$doubleVal", "$dateVal"]}));
 
 // Adding an int64_t value to date value.
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: ["$dateVal", "$int64Val"]}));
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: ["$int64Val", "$dateVal"]}));
+assert.eq(ISODate("2019-01-30T07:30:10.957Z"), getResultOfExpression({$add: ["$dateVal", "$int64Val"]}));
+assert.eq(ISODate("2019-01-30T07:30:10.957Z"), getResultOfExpression({$add: ["$int64Val", "$dateVal"]}));
 
 // Adding an int32_t value to date value.
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: ["$dateVal", "$int32Val"]}));
-assert.eq(ISODate("2019-01-30T07:30:10.957Z"),
-          getResultOfExpression({$add: ["$int32Val", "$dateVal"]}));
+assert.eq(ISODate("2019-01-30T07:30:10.957Z"), getResultOfExpression({$add: ["$dateVal", "$int32Val"]}));
+assert.eq(ISODate("2019-01-30T07:30:10.957Z"), getResultOfExpression({$add: ["$int32Val", "$dateVal"]}));
 
 // Addition with a date and multiple values of differing data types.
-assert.eq(ISODate("2019-01-30T07:30:12.597Z"),
-          getResultOfExpression({$add: ["$dateVal", "$decimalVal", "$doubleVal", "$int64Val"]}));
-assert.eq(ISODate("2019-01-30T07:30:12.597Z"),
-          getResultOfExpression({$add: ["$decimalVal", "$dateVal", "$doubleVal", "$int64Val"]}));
-assert.eq(ISODate("2019-01-30T07:30:12.596Z"),
-          getResultOfExpression({$add: ["$decimalVal", "$doubleVal", "$int64Val", "$dateVal"]}));
+assert.eq(
+    ISODate("2019-01-30T07:30:12.597Z"),
+    getResultOfExpression({$add: ["$dateVal", "$decimalVal", "$doubleVal", "$int64Val"]}),
+);
+assert.eq(
+    ISODate("2019-01-30T07:30:12.597Z"),
+    getResultOfExpression({$add: ["$decimalVal", "$dateVal", "$doubleVal", "$int64Val"]}),
+);
+assert.eq(
+    ISODate("2019-01-30T07:30:12.596Z"),
+    getResultOfExpression({$add: ["$decimalVal", "$doubleVal", "$int64Val", "$dateVal"]}),
+);
 // The result of an addition must remain in the range of int64_t in order to convert back to a Date;
 // an overflow into the domain of double-precision floating point numbers triggers a query-fatal
 // error.
-assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$overflowDouble"]}),
-                      ErrorCodes.Overflow);
+assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$overflowDouble"]}), ErrorCodes.Overflow);
 
-assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$overflowInt64"]}),
-                      ErrorCodes.Overflow);
+assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$overflowInt64"]}), ErrorCodes.Overflow);
 
 assert.throwsWithCode(
     () => getResultOfExpression({$add: ["$dateVal", "$int64Val", "$overflowDouble"]}),
-    ErrorCodes.Overflow);
+    ErrorCodes.Overflow,
+);
 
 assert.throwsWithCode(
     () => getResultOfExpression({$add: ["$int64Val", "$dateVal", "$overflowDouble"]}),
-    ErrorCodes.Overflow);
+    ErrorCodes.Overflow,
+);
 
 // An overflow into the domain of Decimal128 results in an overflow exception.
-assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$overflowDecimal"]}),
-                      ErrorCodes.Overflow);
+assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$overflowDecimal"]}), ErrorCodes.Overflow);
 assert.throwsWithCode(
     () => getResultOfExpression({$add: ["$int64Val", "$dateVal", "$overflowDecimal"]}),
-    ErrorCodes.Overflow);
+    ErrorCodes.Overflow,
+);
 assert.throwsWithCode(
     () => getResultOfExpression({$add: ["$dateVal", "$overflowDouble", "$overflowDecimal"]}),
-    ErrorCodes.Overflow);
+    ErrorCodes.Overflow,
+);
 
 // Adding a double-typed NaN to a date value.
-assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$nanDouble"]}),
-                      ErrorCodes.Overflow);
+assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$nanDouble"]}), ErrorCodes.Overflow);
 
-assert.throwsWithCode(() => getResultOfExpression({$add: ["$nanDouble", "$dateVal"]}),
-                      ErrorCodes.Overflow);
+assert.throwsWithCode(() => getResultOfExpression({$add: ["$nanDouble", "$dateVal"]}), ErrorCodes.Overflow);
 
 // An NaN Decimal128 added to date results in an overflow exception.
-assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$nanDecimal"]}),
-                      ErrorCodes.Overflow);
-assert.throwsWithCode(() => getResultOfExpression({$add: ["$nanDecimal", "$dateVal"]}),
-                      ErrorCodes.Overflow);
+assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$nanDecimal"]}), ErrorCodes.Overflow);
+assert.throwsWithCode(() => getResultOfExpression({$add: ["$nanDecimal", "$dateVal"]}), ErrorCodes.Overflow);
 
 // Addition with a date, a double-typed NaN, and a third value.
-assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", "$doubleVal", "$nanDouble"]}),
-                      ErrorCodes.Overflow);
+assert.throwsWithCode(
+    () => getResultOfExpression({$add: ["$dateVal", "$doubleVal", "$nanDouble"]}),
+    ErrorCodes.Overflow,
+);
 
 // Addition with a date, and both types of NaN.
 assert.throwsWithCode(
     () => getResultOfExpression({$add: ["$dateVal", "$nanDouble", "$nanDecimal"]}),
-    ErrorCodes.Overflow);
+    ErrorCodes.Overflow,
+);
 
 // Throw error when there're two or more date in $add.
 assert.throwsWithCode(() => getResultOfExpression({$add: ["$dateVal", 1, "$dateVal"]}), 4974202);
 
 // Test very large long and verify that we're maintaining the precision of long arithmetic.
 // 2397083434877565865 and 239708343487756586 both cast to the same double value from longs
-assert.eq(ISODate("2019-01-30T07:30:10.958Z"), getResultOfExpression({
-              $add: [
-                  "$dateVal",
-                  NumberLong("2397083434877565865"),
-                  "$doubleVal",
-                  NumberLong("-2397083434877565864")
-              ]
-          }));
+assert.eq(
+    ISODate("2019-01-30T07:30:10.958Z"),
+    getResultOfExpression({
+        $add: ["$dateVal", NumberLong("2397083434877565865"), "$doubleVal", NumberLong("-2397083434877565864")],
+    }),
+);

jstests/aggregation/expressions/all_elements_true.js

@@ -3,8 +3,7 @@
  */
 const coll = db.all_elements_true;
 coll.drop();
-assert.commandWorked(
-    coll.insert({_id: 0, allTrue: [true, true], someTrue: [true, false], noneTrue: [0, false]}));
+assert.commandWorked(coll.insert({_id: 0, allTrue: [true, true], someTrue: [true, false], noneTrue: [0, false]}));
 
 function testOp(expression, expected) {
     const results = coll.aggregate([{$project: {_id: 0, result: expression}}]).toArray();

jstests/aggregation/expressions/any_element_true.js

@@ -5,7 +5,8 @@ import "jstests/libs/query/sbe_assert_error_override.js";
 
 const coll = db.any_element_true;
 coll.drop();
-assert.commandWorked(coll.insert({
+assert.commandWorked(
+    coll.insert({
         _id: 0,
         allTrue: [true, true],
         someTrue: [true, false],
@@ -15,8 +16,9 @@ assert.commandWorked(coll.insert({
         undefinedInput: [undefined],
         undefinedTrue: [undefined, true],
         nullTrue: [null, true],
-    empty: []
-}));
+        empty: [],
+    }),
+);
 
 function testOp(expression, expected) {
     const results = coll.aggregate([{$project: {_id: 0, result: expression}}]).toArray();
@@ -27,8 +29,7 @@ function testOp(expression, expected) {
 }
 
 function assertThrows(expression) {
-    const error =
-        assert.throws(() => coll.aggregate([{$project: {_id: 0, result: expression}}]).toArray());
+    const error = assert.throws(() => coll.aggregate([{$project: {_id: 0, result: expression}}]).toArray());
     assert.commandFailedWithCode(error, 5159200);
 }
 

jstests/aggregation/expressions/arith_overflow.js

@@ -3,25 +3,25 @@
 const coll = db.arith_overflow;
 
 function runTest(operator, expectedResults) {
-    const result =
-        coll.aggregate([{$project: {res: {[operator]: ["$lhs", "$rhs"]}}}, {$sort: {_id: 1}}])
+    const result = coll
+        .aggregate([{$project: {res: {[operator]: ["$lhs", "$rhs"]}}}, {$sort: {_id: 1}}])
         .toArray()
-            .map(r => r.res);
+        .map((r) => r.res);
     assert.eq(result, expectedResults);
 }
 
 // $add
 coll.drop();
-assert.commandWorked(coll.insert({_id: 0, lhs: NumberInt(2e+9), rhs: NumberInt(2e+9)}));
-assert.commandWorked(coll.insert({_id: 1, lhs: NumberLong(9e+18), rhs: NumberLong(9e+18)}));
+assert.commandWorked(coll.insert({_id: 0, lhs: NumberInt(2e9), rhs: NumberInt(2e9)}));
+assert.commandWorked(coll.insert({_id: 1, lhs: NumberLong(9e18), rhs: NumberLong(9e18)}));
 
-runTest("$add", [NumberLong(4e+9), 1.8e+19]);
+runTest("$add", [NumberLong(4e9), 1.8e19]);
 
 // $subtract
 coll.drop();
-assert.commandWorked(coll.insert({_id: 0, lhs: NumberInt(2e+9), rhs: NumberInt(-2e+9)}));
-assert.commandWorked(coll.insert({_id: 1, lhs: NumberLong(9e+18), rhs: NumberLong(-9e+18)}));
+assert.commandWorked(coll.insert({_id: 0, lhs: NumberInt(2e9), rhs: NumberInt(-2e9)}));
+assert.commandWorked(coll.insert({_id: 1, lhs: NumberLong(9e18), rhs: NumberLong(-9e18)}));
 
-runTest("$subtract", [NumberLong(4e+9), 1.8e+19]);
+runTest("$subtract", [NumberLong(4e9), 1.8e19]);
 // $multiply uses same arguments
-runTest("$multiply", [NumberLong(-4e+18), -8.1e+37]);
+runTest("$multiply", [NumberLong(-4e18), -8.1e37]);

jstests/aggregation/expressions/arithmetic_constant_folding.js

@@ -6,17 +6,14 @@
  *  requires_pipeline_optimization,
  * ]
  */
-import {
-    assertArrayEq,
-    getExplainedPipelineFromAggregation
-} from "jstests/aggregation/extras/utils.js";
+import {assertArrayEq, getExplainedPipelineFromAggregation} from "jstests/aggregation/extras/utils.js";
 import {FixtureHelpers} from "jstests/libs/fixture_helpers.js";
 
 // TODO(SERVER-18047): Remove database creation once explain behavior is unified between replica
 // sets and sharded clusters.
 if (FixtureHelpers.isMongos(db) || TestData.testingReplicaSetEndpoint) {
     // Create database
-    assert.commandWorked(db.adminCommand({'enableSharding': db.getName()}));
+    assert.commandWorked(db.adminCommand({"enableSharding": db.getName()}));
 }
 
 (function () {
@@ -37,8 +34,8 @@ const $x = "$x";  // fieldpath to "block" constant folding
     function assertConstantFoldingResultForOp(op, input, expectedOutput, message) {
         const buildExpressionFromArguments = (arr, op) => {
             if (Array.isArray(arr)) {
-            return {[op]: arr.map(elt => buildExpressionFromArguments(elt, op))};
-        } else if (typeof arr === 'string' || arr instanceof String) {
+                return {[op]: arr.map((elt) => buildExpressionFromArguments(elt, op))};
+            } else if (typeof arr === "string" || arr instanceof String) {
                 return arr;
             } else {
                 return {$const: arr};
@@ -64,54 +61,69 @@ function assertConstantFoldingResults(input, addOutput, multiplyOutput, message)
     // Totally fold constants.
     assertConstantFoldingResults([1, 2, 3], 6, 6, "All constants should fold.");
     assertConstantFoldingResults(
-    [[1, 2], 3, 4, 5], 15, 120, "Nested operations with all constants should be folded away.");
+        [[1, 2], 3, 4, 5],
+        15,
+        120,
+        "Nested operations with all constants should be folded away.",
+    );
 
     // Left-associative test cases.
-assertConstantFoldingResults([1, 2, $x],
+    assertConstantFoldingResults(
+        [1, 2, $x],
         [3, $x],
         [2, $x],
-                             "Constants should fold left-to-right before the first non-constant.");
+        "Constants should fold left-to-right before the first non-constant.",
+    );
     assertConstantFoldingResults(
         [$x, 1, 2],
         [$x, 1, 2],
         [$x, 1, 2],
-    "Constants should not fold left-to-right after the first non-constant.");
-assertConstantFoldingResults(
-    [1, $x, 2], [1, $x, 2], [1, $x, 2], "Constants should not fold across non-constants.");
+        "Constants should not fold left-to-right after the first non-constant.",
+    );
+    assertConstantFoldingResults([1, $x, 2], [1, $x, 2], [1, $x, 2], "Constants should not fold across non-constants.");
 
-assertConstantFoldingResults([5, 2, $x, 3, 4],
+    assertConstantFoldingResults(
+        [5, 2, $x, 3, 4],
         [7, $x, 3, 4],
         [10, $x, 3, 4],
-                             "Constants should fold up until a non-constant.");
+        "Constants should fold up until a non-constant.",
+    );
 
-assertConstantFoldingResults([$x, 1, 2, 3],
+    assertConstantFoldingResults(
         [$x, 1, 2, 3],
         [$x, 1, 2, 3],
-                             "Non-constant at start of operand list blocks folding constants.");
+        [$x, 1, 2, 3],
+        "Non-constant at start of operand list blocks folding constants.",
+    );
 
-assertConstantFoldingResults([[1, 2, $x], 3, 4, $x, 5],
+    assertConstantFoldingResults(
+        [[1, 2, $x], 3, 4, $x, 5],
         [[3, $x], 3, 4, $x, 5],
         [[2, $x], 3, 4, $x, 5],
-                             "Nested operation folds as expected.");
+        "Nested operation folds as expected.",
+    );
 
     assertConstantFoldingResults(
         [1, 2, [1, 2, $x], 3, 4, $x, 5],
         [3, [3, $x], 3, 4, $x, 5],
         [2, [2, $x], 3, 4, $x, 5],
-    "Nested operation folds along with outer operation following left-associative rules.");
+        "Nested operation folds along with outer operation following left-associative rules.",
+    );
 
     assertConstantFoldingResults(
         [1, 2, [1, 2, $x, 5, 6], 3, 4, 5],
         [3, [3, $x, 5, 6], 3, 4, 5],
         [2, [2, $x, 5, 6], 3, 4, 5],
-    "Nested operation folds along and outer operation does not fold past inner expression even without toplevel fieldpaths.");
+        "Nested operation folds along and outer operation does not fold past inner expression even without toplevel fieldpaths.",
+    );
 
     assertConstantFoldingResults(
         [1, 2, $x, 4, [1, 2, $x, 5, 6], 3, 4, 5],
         [3, $x, 4, [3, $x, 5, 6], 3, 4, 5],
         [2, $x, 4, [2, $x, 5, 6], 3, 4, 5],
-    "Nested operation folds along and even when fieldpath exists before it.");
-}());
+        "Nested operation folds along and even when fieldpath exists before it.",
+    );
+})();
 
 // Mixing $add and $multiply
 (function () {
@@ -126,13 +138,13 @@ const assertFoldedResult = (expr, expected, message) => {
         const wrapLits = (arr) => {
             if (Array.isArray(arr)) {
                 return arr.map(wrapLits);
-        } else if (typeof arr === 'object') {
+            } else if (typeof arr === "object") {
                 let out = {};
-            Object.keys(arr).forEach(k => {
+                Object.keys(arr).forEach((k) => {
                     out[k] = wrapLits(arr[k]);
                 });
                 return out;
-        } else if (typeof arr === 'string' || arr instanceof String) {
+            } else if (typeof arr === "string" || arr instanceof String) {
                 return arr;
             } else {
                 return {$const: arr};
@@ -143,32 +155,42 @@ const assertFoldedResult = (expr, expected, message) => {
         assert.eq(processedPipeline[0].$group._id, wrapLits(expected), message);
     };
 
-assertFoldedResult({$add: [1, 2, {$multiply: [3, 4, "$x", 5, 6]}, 6, 7]},
+    assertFoldedResult(
+        {$add: [1, 2, {$multiply: [3, 4, "$x", 5, 6]}, 6, 7]},
         {$add: [3, {$multiply: [12, "$x", 5, 6]}, 6, 7]},
-                   "Multiply inside add will fold as much as it can.");
+        "Multiply inside add will fold as much as it can.",
+    );
 
-assertFoldedResult({$multiply: [1, 2, {$add: [3, 4, "$x", 5, 6]}, 6, 7]},
+    assertFoldedResult(
+        {$multiply: [1, 2, {$add: [3, 4, "$x", 5, 6]}, 6, 7]},
         {$multiply: [2, {$add: [7, "$x", 5, 6]}, 6, 7]},
-                   "Add inside multiply will fold as much as it can.");
+        "Add inside multiply will fold as much as it can.",
+    );
 
-assertFoldedResult({$add: [1, 2, {$multiply: [3, 4, 5, 6]}, 6, "$x", 7, 8]},
+    assertFoldedResult(
+        {$add: [1, 2, {$multiply: [3, 4, 5, 6]}, 6, "$x", 7, 8]},
         {$add: [369, "$x", 7, 8]},
-                   "Multiply without fieldpath will fold away and add will continue folding.");
+        "Multiply without fieldpath will fold away and add will continue folding.",
+    );
 
-assertFoldedResult({$multiply: [1, 2, {$add: [3, 4, 5, 6]}, 6, "$x", 7, 8]},
+    assertFoldedResult(
+        {$multiply: [1, 2, {$add: [3, 4, 5, 6]}, 6, "$x", 7, 8]},
         {$multiply: [216, "$x", 7, 8]},
-                   "Add without fieldpath will fold away and multiply will continue folding.");
+        "Add without fieldpath will fold away and multiply will continue folding.",
+    );
 
     assertFoldedResult(
         {$add: [1, 2, "$x", {$multiply: [3, 4, "$x", 5, 6]}, 6, 7, 8]},
         {$add: [3, "$x", {$multiply: [12, "$x", 5, 6]}, 6, 7, 8]},
-    "Constant folding nested $multiply proceeds even after outer $add stops folding.");
+        "Constant folding nested $multiply proceeds even after outer $add stops folding.",
+    );
 
     assertFoldedResult(
         {$multiply: [1, 2, "$x", {$add: [3, 4, "$x", 5, 6]}, 6, 7, 8]},
         {$multiply: [2, "$x", {$add: [7, "$x", 5, 6]}, 6, 7, 8]},
-    "Constant folding nested $add proceeds even after outer multiply stops folding.");
-}());
+        "Constant folding nested $add proceeds even after outer multiply stops folding.",
+    );
+})();
 
 // Regression tests for BFs related to SERVER-63099.
 (function () {
@@ -183,35 +205,40 @@ const makePipeline = (id) => [{$group: {_id: id, sum: {$sum: 1}}}];
     coll.insert({_id: 0, v: NumberDecimal("917.6875119062092")});
     coll.insert({_id: 1, v: NumberDecimal("927.3345924210555")});
 
-const idToString = d => d._id.toJSON().$numberDecimal;
+    const idToString = (d) => d._id.toJSON().$numberDecimal;
 
     assertArrayEq({
-    actual: coll.aggregate(makePipeline({$multiply: [-3.14159265859, "$v", -314159255]}))
+        actual: coll
+            .aggregate(makePipeline({$multiply: [-3.14159265859, "$v", -314159255]}))
             .toArray()
             .map(idToString),
-    expected: [
-        "915242528741.9469524422272990976000",
-        "905721242210.0453137831269007622941",
-    ]
+        expected: ["915242528741.9469524422272990976000", "905721242210.0453137831269007622941"],
     });
 
     // BF-24945
     coll.drop();
     coll.insert({x: 0, y: 4.1});
-assert(numberDecimalsEqual(
+    assert(
+        numberDecimalsEqual(
             coll
-        .aggregate(makePipeline(
-            {$multiply: [NumberDecimal("-9.999999999999999999999999999999999E+6144"), "$x", "$y"]}))
-        .toArray()[0]
-        ._id,
-    NumberDecimal(0)));
+                .aggregate(
+                    makePipeline({
+                        $multiply: [NumberDecimal("-9.999999999999999999999999999999999E+6144"), "$x", "$y"],
+                    }),
+                )
+                .toArray()[0]._id,
+            NumberDecimal(0),
+        ),
+    );
     assertArrayEq({
-    actual: coll.aggregate(makePipeline({
-                    $multiply:
-                        [NumberDecimal("-9.999999999999999999999999999999999E+6144"), "$y", "$x"]
-                }))
+        actual: coll
+            .aggregate(
+                makePipeline({
+                    $multiply: [NumberDecimal("-9.999999999999999999999999999999999E+6144"), "$y", "$x"],
+                }),
+            )
             .toArray()
             .map(idToString),
-    expected: ["NaN"]
+        expected: ["NaN"],
     });
-}());
+})();

jstests/aggregation/expressions/arrayToObject.js

@@ -16,9 +16,7 @@ assert.commandWorked(coll.insert({_id: "sentinel", a: 1}));
 function assertCollapsed(expanded, expectedCollapsed) {
     assert(coll.drop());
     assert.commandWorked(coll.insert({expanded: expanded}));
-    const result = coll.aggregate([{$project: {collapsed: {$arrayToObject: "$expanded"}}}])
-                       .toArray()[0]
-                       .collapsed;
+    const result = coll.aggregate([{$project: {collapsed: {$arrayToObject: "$expanded"}}}]).toArray()[0].collapsed;
     assert.eq(result, expectedCollapsed);
 }
 
@@ -26,10 +24,11 @@ function assertCollapsed(expanded, expectedCollapsed) {
 function assertCollapsedWithCollation(expanded, expectedCollapsed) {
     assert(coll.drop());
     assert.commandWorked(coll.insert({expanded: expanded}));
-    const result = coll.aggregate([{$project: {collapsed: {$arrayToObject: "$expanded"}}}],
-                                  {collation: {locale: "en_US", strength: 2}})
-                       .toArray()[0]
-                       .collapsed;
+    const result = coll
+        .aggregate([{$project: {collapsed: {$arrayToObject: "$expanded"}}}], {
+            collation: {locale: "en_US", strength: 2},
+        })
+        .toArray()[0].collapsed;
     assert.eq(result, expectedCollapsed);
 }
 
@@ -43,19 +42,59 @@ function assertPipelineErrors(expanded, errorCode) {
 }
 
 // $arrayToObject correctly converts a key-value pairs to an object.
-assertCollapsed([["price", 24], ["item", "apple"]], {"price": 24, "item": "apple"});
-assertCollapsed([{"k": "price", "v": 24}, {"k": "item", "v": "apple"}],
-                {"price": 24, "item": "apple"});
+assertCollapsed(
+    [
+        ["price", 24],
+        ["item", "apple"],
+    ],
+    {"price": 24, "item": "apple"},
+);
+assertCollapsed(
+    [
+        {"k": "price", "v": 24},
+        {"k": "item", "v": "apple"},
+    ],
+    {"price": 24, "item": "apple"},
+);
 // If duplicate field names are in the array, $arrayToObject should use value from the last one.
-assertCollapsed([{"k": "price", "v": 24}, {"k": "price", "v": 100}], {"price": 100});
-assertCollapsed([["price", 24], ["price", 100]], {"price": 100});
+assertCollapsed(
+    [
+        {"k": "price", "v": 24},
+        {"k": "price", "v": 100},
+    ],
+    {"price": 100},
+);
+assertCollapsed(
+    [
+        ["price", 24],
+        ["price", 100],
+    ],
+    {"price": 100},
+);
 
 // Test with collation
-assertCollapsedWithCollation([{"k": "price", "v": 24}, {"k": "PRICE", "v": 100}],
-                             {"price": 24, "PRICE": 100});
-assertCollapsedWithCollation([["price", 24], ["PRICE", 100]], {"price": 24, "PRICE": 100});
+assertCollapsedWithCollation(
+    [
+        {"k": "price", "v": 24},
+        {"k": "PRICE", "v": 100},
+    ],
+    {"price": 24, "PRICE": 100},
+);
+assertCollapsedWithCollation(
+    [
+        ["price", 24],
+        ["PRICE", 100],
+    ],
+    {"price": 24, "PRICE": 100},
+);
 
-assertCollapsed([["price", 24], ["item", "apple"]], {"price": 24, "item": "apple"});
+assertCollapsed(
+    [
+        ["price", 24],
+        ["item", "apple"],
+    ],
+    {"price": 24, "item": "apple"},
+);
 assertCollapsed([], {});
 
 assertCollapsed(null, null);
@@ -90,15 +129,15 @@ assertPipelineErrors(NaN, 40386);
 assertPipelineErrors([["a\0b", "abra cadabra"]], 4940400);
 assertPipelineErrors([{k: "a\0b", v: "blah"}], 4940401);
 
-assertErrorCode(
-    coll, [{$replaceWith: {$arrayToObject: {$literal: [["a\0b", "abra cadabra"]]}}}], 4940400);
-assertErrorCode(
-    coll, [{$replaceWith: {$arrayToObject: {$literal: [{k: "a\0b", v: "blah"}]}}}], 4940401);
+assertErrorCode(coll, [{$replaceWith: {$arrayToObject: {$literal: [["a\0b", "abra cadabra"]]}}}], 4940400);
+assertErrorCode(coll, [{$replaceWith: {$arrayToObject: {$literal: [{k: "a\0b", v: "blah"}]}}}], 4940401);
 assertErrorCode(
     coll,
     [{$replaceWith: {$arrayToObject: {$literal: [["a\0b", "abra cadabra"]]}}}, {$out: "output"}],
-    4940400);
+    4940400,
+);
 assertErrorCode(
     coll,
     [{$replaceWith: {$arrayToObject: {$literal: [{k: "a\0b", v: "blah"}]}}}, {$out: "output"}],
-    4940401);
+    4940401,
+);

jstests/aggregation/expressions/array_elem_at.js

@@ -10,41 +10,41 @@ coll.drop();
 assert.commandWorked(coll.insert({a: [1, 2, 3, 4, 5]}));
 
 // Normal indexing.
-var pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', 2]}}}];
+var pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", 2]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{x: 3}]);
 
 // Indexing with a float.
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', 1.0]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", 1.0]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{x: 2}]);
 
 // Indexing with a decimal
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', NumberDecimal('2.0')]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", NumberDecimal("2.0")]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{x: 3}]);
 
 // Negative indexing.
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', -1]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", -1]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{x: 5}]);
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', -5]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", -5]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{x: 1}]);
 
 // Out of bounds positive.
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', 5]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", 5]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{}]);
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', Math.pow(2, 31) - 1]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", Math.pow(2, 31) - 1]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{}]);
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', NumberLong(Math.pow(2, 31) - 1)]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", NumberLong(Math.pow(2, 31) - 1)]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{}]);
 
 // Out of bounds negative.
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', -6]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", -6]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{}]);
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', -Math.pow(2, 31)]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", -Math.pow(2, 31)]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{}]);
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', NumberLong(-Math.pow(2, 31))]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", NumberLong(-Math.pow(2, 31))]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{}]);
 
 // Null inputs.
-pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ['$a', null]}}}];
+pipeline = [{$project: {_id: 0, x: {$arrayElemAt: ["$a", null]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{x: null}]);
 pipeline = [{$project: {_id: 0, x: {$arrayElemAt: [null, 4]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{x: null}]);
@@ -52,16 +52,16 @@ assert.eq(coll.aggregate(pipeline).toArray(), [{x: null}]);
 // Error cases.
 
 // Wrong number of arguments.
-assertErrorCode(coll, [{$project: {x: {$arrayElemAt: [['one', 'arg']]}}}], 16020);
+assertErrorCode(coll, [{$project: {x: {$arrayElemAt: [["one", "arg"]]}}}], 16020);
 
 // First argument is not an array.
-assertErrorCode(coll, [{$project: {x: {$arrayElemAt: ['one', 2]}}}], 28689);
+assertErrorCode(coll, [{$project: {x: {$arrayElemAt: ["one", 2]}}}], 28689);
 
 // Second argument is not numeric.
-assertErrorCode(coll, [{$project: {x: {$arrayElemAt: [[1, 2], '2']}}}], 28690);
+assertErrorCode(coll, [{$project: {x: {$arrayElemAt: [[1, 2], "2"]}}}], 28690);
 
 // Second argument is not integral.
 assertErrorCode(coll, [{$project: {x: {$arrayElemAt: [[1, 2], 1.5]}}}], 28691);
-assertErrorCode(coll, [{$project: {x: {$arrayElemAt: [[1, 2], NumberDecimal('1.5')]}}}], 28691);
+assertErrorCode(coll, [{$project: {x: {$arrayElemAt: [[1, 2], NumberDecimal("1.5")]}}}], 28691);
 assertErrorCode(coll, [{$project: {x: {$arrayElemAt: [[1, 2], Math.pow(2, 32)]}}}], 28691);
 assertErrorCode(coll, [{$project: {x: {$arrayElemAt: [[1, 2], -Math.pow(2, 31) - 1]}}}], 28691);

jstests/aggregation/expressions/avg_and_sum.js

@@ -30,7 +30,7 @@ coll.insertOne({
     "array2": [1, 2, 3, "string"],
     "array3": [12.4, 5.6, 9.805],
     "arrayNested1": [[1, 2, 3], new Map()],
-    "arrayNested2": [[1, 2, 3], 4, null]
+    "arrayNested2": [[1, 2, 3], 4, null],
 });
 
 // Single non-array input.

jstests/aggregation/expressions/binarySize.js

@@ -6,7 +6,8 @@ import {assertErrorCode} from "jstests/aggregation/extras/utils.js";
 const coll = db.expression_binarySize;
 coll.drop();
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, x: ""},
         {_id: 1, x: "abc"},
         {_id: 2, x: "ab\0c"},
@@ -15,12 +16,11 @@ assert.commandWorked(coll.insert([
         {_id: 5, x: BinData(0, "1234")},
         {_id: 6, x: null},
         {_id: 7},
-]));
+    ]),
+);
 
-const result =
-    coll.aggregate([{$sort: {_id: 1}}, {$addFields: {s: {$binarySize: "$x"}}}]).toArray();
+const result = coll.aggregate([{$sort: {_id: 1}}, {$addFields: {s: {$binarySize: "$x"}}}]).toArray();
 assert.eq(result, [
-
     {_id: 0, x: "", s: 0},
     {_id: 1, x: "abc", s: 3},
     // Javascript strings and BSON strings can contain '\0', so both of these have length 4.

jstests/aggregation/expressions/bitwise.js

@@ -9,19 +9,22 @@ const collName = jsTestName();
 const coll = db[collName];
 coll.drop();
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, a: NumberInt(0), b: NumberInt(127), c: [NumberInt(0), NumberInt(127)]},
         {_id: 1, a: NumberInt(1), b: NumberInt(2), c: [NumberInt(1), NumberInt(2)]},
         {_id: 2, a: NumberInt(2), b: NumberInt(3), c: [NumberInt(2), NumberInt(3)]},
         {_id: 3, a: NumberInt(3), b: NumberInt(5), c: [NumberInt(3), NumberInt(5)]},
-]));
+    ]),
+);
 
 function runAndAssert(expression, expectedResult) {
     assertArrayEq({
-        actual: coll.aggregate([{$project: {r: {[expression]: ["$a", "$b"]}}}])
+        actual: coll
+            .aggregate([{$project: {r: {[expression]: ["$a", "$b"]}}}])
             .toArray()
-                    .map(doc => doc.r),
-        expected: expectedResult
+            .map((doc) => doc.r),
+        expected: expectedResult,
     });
 }
 
@@ -30,60 +33,74 @@ runAndAssert("$bitOr", [127, 3, 3, 7]);
 runAndAssert("$bitXor", [127, 3, 1, 6]);
 
 for (const operator of ["$bitAnd", "$bitOr", "$bitXor"]) {
-    for (const operand
-             of [Number(12.0), NumberDecimal("12"), "$c", ["$c"], [[NumberInt(1), NumberInt(2)]]]) {
-        assert.commandFailedWithCode(coll.runCommand({
+    for (const operand of [Number(12.0), NumberDecimal("12"), "$c", ["$c"], [[NumberInt(1), NumberInt(2)]]]) {
+        assert.commandFailedWithCode(
+            coll.runCommand({
                 aggregate: collName,
                 cursor: {},
-            pipeline: [{
+                pipeline: [
+                    {
                         $project: {
                             r: {[operator]: ["$a", operand]},
-                }
-            }]
+                        },
+                    },
+                ],
             }),
-                                     ErrorCodes.TypeMismatch);
+            ErrorCodes.TypeMismatch,
+        );
     }
     for (const argument of ["$c", ["$c"], [[NumberInt(1), NumberInt(2)]]]) {
-        assert.commandFailedWithCode(coll.runCommand({
+        assert.commandFailedWithCode(
+            coll.runCommand({
                 aggregate: collName,
                 cursor: {},
-            pipeline: [{
+                pipeline: [
+                    {
                         $project: {
                             r: {[operator]: argument},
-                }
-            }]
+                        },
+                    },
+                ],
             }),
-                                     ErrorCodes.TypeMismatch);
+            ErrorCodes.TypeMismatch,
+        );
     }
 }
 
 assertArrayEq({
-    actual: coll.aggregate([
-                    {$project: {r: {$bitNot: "$a"}}},
-                ])
+    actual: coll
+        .aggregate([{$project: {r: {$bitNot: "$a"}}}])
         .toArray()
-                .map(doc => doc.r),
-    expected: [-1, -2, -3, -4]
+        .map((doc) => doc.r),
+    expected: [-1, -2, -3, -4],
 });
 
-assert.commandFailedWithCode(coll.runCommand({
+assert.commandFailedWithCode(
+    coll.runCommand({
         aggregate: collName,
         cursor: {},
-    pipeline: [{
+        pipeline: [
+            {
                 $project: {
                     r: {$bitNot: 12.5},
-        }
-    }]
+                },
+            },
+        ],
     }),
-                             ErrorCodes.TypeMismatch);
+    ErrorCodes.TypeMismatch,
+);
 
-assert.commandFailedWithCode(coll.runCommand({
+assert.commandFailedWithCode(
+    coll.runCommand({
         aggregate: collName,
         cursor: {},
-    pipeline: [{
+        pipeline: [
+            {
                 $project: {
                     r: {$bitNot: ["$a", "$b"]},
-        }
-    }]
+                },
+            },
+        ],
     }),
-                             16020);  // Error for incorrect number of arguments.
+    16020,
+); // Error for incorrect number of arguments.

jstests/aggregation/expressions/bsonSize.js

@@ -3,8 +3,7 @@ coll.drop();
 assert.commandWorked(coll.insert({_id: 1}));
 
 function checkBsonSize() {
-    assert.eq(Object.bsonsize(coll.findOne()),
-              coll.aggregate([{$project: {s: {$bsonSize: "$$CURRENT"}}}]).next().s);
+    assert.eq(Object.bsonsize(coll.findOne()), coll.aggregate([{$project: {s: {$bsonSize: "$$CURRENT"}}}]).next().s);
 }
 
 checkBsonSize();
@@ -15,13 +14,13 @@ checkBsonSize();
 assert.commandWorked(coll.update({_id: 1}, {$push: {xs: {subdoc: 12345}}}));
 checkBsonSize();
 
-assert.commandWorked(coll.update({_id: 1}, {$push: {xs: 'x'.repeat(7)}}));
+assert.commandWorked(coll.update({_id: 1}, {$push: {xs: "x".repeat(7)}}));
 checkBsonSize();
 
-assert.commandWorked(coll.update({_id: 1}, {$push: {xs: 'x'.repeat(500)}}));
+assert.commandWorked(coll.update({_id: 1}, {$push: {xs: "x".repeat(500)}}));
 checkBsonSize();
 
-assert.commandWorked(coll.update({_id: 1}, {$push: {xs: 'x'.repeat(16 * 1e6)}}));
+assert.commandWorked(coll.update({_id: 1}, {$push: {xs: "x".repeat(16 * 1e6)}}));
 checkBsonSize();
 
 // embedded arrays
@@ -34,9 +33,11 @@ checkBsonSize();
 
 // bsonSize's argument must be a document
 function checkExpectsDocument(badInput) {
-    assert.throws(() => coll.aggregate([{$project: {x: {$bsonSize: {$literal: badInput}}}}]),
+    assert.throws(
+        () => coll.aggregate([{$project: {x: {$bsonSize: {$literal: badInput}}}}]),
         [],
-                  "$bsonSize requires a document input");
+        "$bsonSize requires a document input",
+    );
 }
 checkExpectsDocument(123);
 checkExpectsDocument("abc");

jstests/aggregation/expressions/cmp_literal.js

@@ -6,15 +6,15 @@ assert.commandWorked(coll.insertOne({string: "foo"}));
 // check that without $literal we end up comparing a field with itself and the result is true
 var result = db.runCommand({
     aggregate: collName,
-    pipeline: [{$project: {stringis$string: {$eq: ["$string", '$string']}}}],
-    cursor: {}
+    pipeline: [{$project: {stringis$string: {$eq: ["$string", "$string"]}}}],
+    cursor: {},
 });
 assert.eq(result.cursor.firstBatch[0].stringis$string, true);
 
 // check that with $literal we end up comparing a field with '$string' and the result is true
 result = db.runCommand({
     aggregate: collName,
-    pipeline: [{$project: {stringis$string: {$eq: ["$string", {$literal: '$string'}]}}}],
-    cursor: {}
+    pipeline: [{$project: {stringis$string: {$eq: ["$string", {$literal: "$string"}]}}}],
+    cursor: {},
 });
 assert.eq(result.cursor.firstBatch[0].stringis$string, false);

jstests/aggregation/expressions/collation_expressions.js

@@ -12,11 +12,11 @@ coll.drop();
 var results;
 const caseInsensitive = {
     locale: "en_US",
-    strength: 2
+    strength: 2,
 };
 const numericOrdering = {
     locale: "en_US",
-    numericOrdering: true
+    numericOrdering: true,
 };
 
 // Test that $cmp respects the collection-default collation.
@@ -52,8 +52,7 @@ testExpressionWithCollation(coll, {$gte: ["b", "B"]}, true, caseInsensitive);
 testExpressionWithCollation(coll, {$in: ["A", [1, 2, "a", 3, 4]]}, true, caseInsensitive);
 
 // Test that $indexOfArray respects the collation.
-testExpressionWithCollation(
-    coll, {$indexOfArray: [[1, 2, "a", "b", "c", "B"], "B"]}, 3, caseInsensitive);
+testExpressionWithCollation(coll, {$indexOfArray: [[1, 2, "a", "b", "c", "B"], "B"]}, 3, caseInsensitive);
 
 // Test that $indexOfBytes doesn't respect the collation.
 testExpressionWithCollation(coll, {$indexOfBytes: ["12abcB", "B"]}, 5, caseInsensitive);
@@ -65,19 +64,56 @@ testExpressionWithCollation(coll, {$indexOfCP: ["12abcB", "B"]}, 5, caseInsensit
 testExpressionWithCollation(coll, {$strcasecmp: ["100", "2"]}, -1, numericOrdering);
 
 // Test that $setEquals respects the collation.
-testExpressionWithCollation(coll, {$setEquals: [["a", "B"], ["b", "A"]]}, true, caseInsensitive);
+testExpressionWithCollation(
+    coll,
+    {
+        $setEquals: [
+            ["a", "B"],
+            ["b", "A"],
+        ],
+    },
+    true,
+    caseInsensitive,
+);
 
 // Test that $setIntersection respects the collation.
-results =
-    coll.aggregate([{$project: {out: {$setIntersection: [["a", "B", "c"], ["d", "b", "A"]]}}}],
-                   {collation: caseInsensitive})
+results = coll
+    .aggregate(
+        [
+            {
+                $project: {
+                    out: {
+                        $setIntersection: [
+                            ["a", "B", "c"],
+                            ["d", "b", "A"],
+                        ],
+                    },
+                },
+            },
+        ],
+        {collation: caseInsensitive},
+    )
     .toArray();
 assert.eq(1, results.length);
 assert.eq(2, results[0].out.length);
 
 // Test that $setUnion respects the collation.
-results = coll.aggregate([{$project: {out: {$setUnion: [["a", "B", "c"], ["d", "b", "A"]]}}}],
-                         {collation: caseInsensitive})
+results = coll
+    .aggregate(
+        [
+            {
+                $project: {
+                    out: {
+                        $setUnion: [
+                            ["a", "B", "c"],
+                            ["d", "b", "A"],
+                        ],
+                    },
+                },
+            },
+        ],
+        {collation: caseInsensitive},
+    )
     .toArray();
 assert.eq(1, results.length);
 assert.eq(4, results[0].out.length);
@@ -87,20 +123,39 @@ assert.eq(4, results[0].out.length);
 assert(coll.drop);
 coll.drop();
 assert.commandWorked(coll.insert({_id: 1, upper: "A", lower: "a"}));
-var results1 = coll.aggregate([{$project: {out: {$setUnion: [["$upper"], ["a"]]}}}],
-                              {collation: caseInsensitive})
+var results1 = coll
+    .aggregate([{$project: {out: {$setUnion: [["$upper"], ["a"]]}}}], {collation: caseInsensitive})
     .toArray();
-var results2 = coll.aggregate([{$project: {out: {$setUnion: [["A"], ["$lower"]]}}}],
-                              {collation: caseInsensitive})
+var results2 = coll
+    .aggregate([{$project: {out: {$setUnion: [["A"], ["$lower"]]}}}], {collation: caseInsensitive})
     .toArray();
 assert.eq(results1, results2);
 
 // Test that $setDifference respects the collation.
-testExpressionWithCollation(coll, {$setDifference: [["a", "B"], ["b", "A"]]}, [], caseInsensitive);
+testExpressionWithCollation(
+    coll,
+    {
+        $setDifference: [
+            ["a", "B"],
+            ["b", "A"],
+        ],
+    },
+    [],
+    caseInsensitive,
+);
 
 // Test that $setIsSubset respects the collation.
 testExpressionWithCollation(
-    coll, {$setIsSubset: [["a", "B"], ["b", "A", "c"]]}, true, caseInsensitive);
+    coll,
+    {
+        $setIsSubset: [
+            ["a", "B"],
+            ["b", "A", "c"],
+        ],
+    },
+    true,
+    caseInsensitive,
+);
 
 // Test that $split doesn't respect the collation.
 testExpressionWithCollation(coll, {$split: ["abc", "B"]}, ["abc"], caseInsensitive);
@@ -108,8 +163,8 @@ testExpressionWithCollation(coll, {$split: ["abc", "B"]}, ["abc"], caseInsensiti
 // Test that an $and which can be optimized out respects the collation.
 coll.drop();
 assert.commandWorked(coll.insert({_id: 1, str: "A"}));
-results = coll.aggregate([{$project: {out: {$and: [{$eq: ["$str", "a"]}, {$eq: ["b", "B"]}]}}}],
-                         {collation: caseInsensitive})
+results = coll
+    .aggregate([{$project: {out: {$and: [{$eq: ["$str", "a"]}, {$eq: ["b", "B"]}]}}}], {collation: caseInsensitive})
     .toArray();
 assert.eq(1, results.length);
 assert.eq(true, results[0].out);
@@ -117,8 +172,8 @@ assert.eq(true, results[0].out);
 // Test that an $and which cannot be optimized out respects the collation.
 coll.drop();
 assert.commandWorked(coll.insert({_id: 1, str: "A", str2: "B"}));
-results = coll.aggregate([{$project: {out: {$and: [{$eq: ["$str", "a"]}, {$eq: ["$str2", "b"]}]}}}],
-                         {collation: caseInsensitive})
+results = coll
+    .aggregate([{$project: {out: {$and: [{$eq: ["$str", "a"]}, {$eq: ["$str2", "b"]}]}}}], {collation: caseInsensitive})
     .toArray();
 assert.eq(1, results.length);
 assert.eq(true, results[0].out);
@@ -126,8 +181,8 @@ assert.eq(true, results[0].out);
 // Test that an $or which can be optimized out respects the collation.
 coll.drop();
 assert.commandWorked(coll.insert({_id: 1, str: "A"}));
-results = coll.aggregate([{$project: {out: {$or: [{$eq: ["$str", "a"]}, {$eq: ["b", "c"]}]}}}],
-                         {collation: caseInsensitive})
+results = coll
+    .aggregate([{$project: {out: {$or: [{$eq: ["$str", "a"]}, {$eq: ["b", "c"]}]}}}], {collation: caseInsensitive})
     .toArray();
 assert.eq(1, results.length);
 assert.eq(true, results[0].out);
@@ -135,40 +190,44 @@ assert.eq(true, results[0].out);
 // Test that an $or which cannot be optimized out respects the collation.
 coll.drop();
 assert.commandWorked(coll.insert({_id: 1, str: "A", str2: "B"}));
-results = coll.aggregate([{$project: {out: {$or: [{$eq: ["$str", "c"]}, {$eq: ["$str2", "b"]}]}}}],
-                         {collation: caseInsensitive})
+results = coll
+    .aggregate([{$project: {out: {$or: [{$eq: ["$str", "c"]}, {$eq: ["$str2", "b"]}]}}}], {collation: caseInsensitive})
     .toArray();
 assert.eq(1, results.length);
 assert.eq(true, results[0].out);
 
 // Test that $filter's subexpressions respect the collation.
-testExpressionWithCollation(coll,
+testExpressionWithCollation(
+    coll,
     {
         $filter: {
             input: {
                 $cond: {
                     if: {$eq: ["FOO", "foo"]},
                     then: ["a", "b", "A", "c", "C", "d"],
-                                              else: null
-                                          }
+                    else: null,
+                },
             },
             as: "str",
-                                      cond: {$or: [{$eq: ["$$str", "a"]}, {$eq: ["$$str", "c"]}]}
-                                  }
+            cond: {$or: [{$eq: ["$$str", "a"]}, {$eq: ["$$str", "c"]}]},
+        },
     },
     ["a", "A", "c", "C"],
-                                caseInsensitive);
+    caseInsensitive,
+);
 
 // Test that $let's subexpressions respect the collation.
-testExpressionWithCollation(coll,
+testExpressionWithCollation(
+    coll,
     {
         $let: {
             vars: {str: {$cond: [{$eq: ["A", "a"]}, "b", "c"]}},
-                                      in : {$cond: [{$eq: ["$$str", "B"]}, "d", "e"]}
-                                  }
+            in: {$cond: [{$eq: ["$$str", "B"]}, "d", "e"]},
+        },
     },
     "d",
-                                caseInsensitive);
+    caseInsensitive,
+);
 
 // Test that $map's subexpressions respect the collation.
 testExpressionWithCollation(
@@ -177,17 +236,18 @@ testExpressionWithCollation(
         $map: {
             input: {$cond: [{$eq: ["A", "a"]}, ["aa", "a", "AA", "b"], null]},
             as: "val",
-              in : {$and: [{$eq: ["$$val", "aA"]}, {$eq: ["$$val", "Aa"]}]}
-          }
+            in: {$and: [{$eq: ["$$val", "aA"]}, {$eq: ["$$val", "Aa"]}]},
+        },
     },
     [true, false, true, false],
-        caseInsensitive);
+    caseInsensitive,
+);
 
 // Test that $group stage's _id expressions respect the collation.
 coll.drop();
 assert.commandWorked(coll.insert({_id: 1}));
-results = coll.aggregate([{$group: {_id: {a: {$eq: ["a", "A"]}, b: {$eq: ["b", "B"]}}}}],
-                         {collation: caseInsensitive})
+results = coll
+    .aggregate([{$group: {_id: {a: {$eq: ["a", "A"]}, b: {$eq: ["b", "B"]}}}}], {collation: caseInsensitive})
     .toArray();
 assert.eq(1, results.length);
 assert.eq(true, results[0]._id.a);
@@ -201,19 +261,21 @@ testExpressionWithCollation(
             input: {$cond: [{$eq: ["a", "A"]}, [1, 2, 3], null]},
             initialValue: {$cond: [{$eq: ["a", "A"]}, {sum: 1}, {sum: 0}]},
             in: {
-                  $cond: [{$eq: ["a", "A"]}, {sum: {$add: ["$$value.sum", "$$this"]}}, {sum: 0}]
-              }
-          }
+                $cond: [{$eq: ["a", "A"]}, {sum: {$add: ["$$value.sum", "$$this"]}}, {sum: 0}],
+            },
+        },
     },
     {sum: 7},
-        caseInsensitive);
+    caseInsensitive,
+);
 
 // Test that $switch's subexpressions respect the collation.
 coll.drop();
 assert.commandWorked(coll.insert({_id: 1, a: "A"}));
 assert.commandWorked(coll.insert({_id: 2, b: "B"}));
 assert.commandWorked(coll.insert({_id: 3, c: "C"}));
-results = coll.aggregate(
+results = coll
+    .aggregate(
         [
             {$sort: {_id: 1}},
             {
@@ -222,15 +284,16 @@ results = coll.aggregate(
                         $switch: {
                             branches: [
                                 {case: {$eq: ["$a", "a"]}, then: "foo"},
-                                          {case: {$eq: ["$b", "b"]}, then: "bar"}
+                                {case: {$eq: ["$b", "b"]}, then: "bar"},
                             ],
-                                      default: "baz"
-                                  }
-                              }
-                          }
-                      }
+                            default: "baz",
+                        },
+                    },
+                },
+            },
         ],
-                  {collation: caseInsensitive})
+        {collation: caseInsensitive},
+    )
     .toArray();
 assert.eq(3, results.length);
 assert.eq("foo", results[0].out);
@@ -240,21 +303,33 @@ assert.eq("baz", results[2].out);
 // Test that a $zip's subexpressions respect the collation.
 coll.drop();
 assert.commandWorked(coll.insert({_id: 0, evens: [0, 2, 4], odds: [1, 3]}));
-results = coll.aggregate([{
+results = coll
+    .aggregate(
+        [
+            {
                 $project: {
                     out: {
                         $zip: {
                             inputs: [
                                 {$cond: [{$eq: ["A", "a"]}, "$evens", "$odds"]},
-                                             {$cond: [{$eq: ["B", "b"]}, "$odds", "$evens"]}
+                                {$cond: [{$eq: ["B", "b"]}, "$odds", "$evens"]},
                             ],
                             defaults: [0, {$cond: [{$eq: ["C", "c"]}, 5, 7]}],
-                                         useLongestLength: true
-                                     }
-                                 }
-                             }
-                         }],
-                         {collation: caseInsensitive})
+                            useLongestLength: true,
+                        },
+                    },
+                },
+            },
+        ],
+        {collation: caseInsensitive},
+    )
     .toArray();
 assert.eq(1, results.length);
-assert.eq([[0, 1], [2, 3], [4, 5]], results[0].out);
+assert.eq(
+    [
+        [0, 1],
+        [2, 3],
+        [4, 5],
+    ],
+    results[0].out,
+);

jstests/aggregation/expressions/commutative_arithmetic_exprs.js

@@ -3,7 +3,10 @@
 const coll = db[jsTest.name()];
 coll.drop();
 const numbers = [1.0, NumberInt("1"), NumberLong("1"), NumberDecimal("1.0")];
-const specials = [{val: NaN, path: "$nan"}, {val: Infinity, path: "$inf"}];
+const specials = [
+    {val: NaN, path: "$nan"},
+    {val: Infinity, path: "$inf"},
+];
 
 assert.commandWorked(coll.insert({inf: Infinity, nan: NaN}));
 
@@ -11,15 +14,9 @@ assert.commandWorked(coll.insert({inf: Infinity, nan: NaN}));
     (function testCommutativityWithConstArguments() {
         specials.forEach((special) => {
             numbers.forEach((num) => {
-                const expected = [
-                    {a: (num instanceof NumberDecimal ? NumberDecimal(special.val) : special.val)}
-                ];
-                assert.eq(expected,
-                          coll.aggregate([{$project: {a: {[op]: [special.val, num]}, _id: 0}}])
-                              .toArray());
-                assert.eq(expected,
-                          coll.aggregate([{$project: {a: {[op]: [num, special.val]}, _id: 0}}])
-                              .toArray());
+                const expected = [{a: num instanceof NumberDecimal ? NumberDecimal(special.val) : special.val}];
+                assert.eq(expected, coll.aggregate([{$project: {a: {[op]: [special.val, num]}, _id: 0}}]).toArray());
+                assert.eq(expected, coll.aggregate([{$project: {a: {[op]: [num, special.val]}, _id: 0}}]).toArray());
             });
         });
     })();
@@ -27,15 +24,9 @@ assert.commandWorked(coll.insert({inf: Infinity, nan: NaN}));
     (function testCommutativityWithNonConstArgument() {
         specials.forEach((special) => {
             numbers.forEach((num) => {
-                const expected = [
-                    {a: (num instanceof NumberDecimal ? NumberDecimal(special.val) : special.val)}
-                ];
-                assert.eq(expected,
-                          coll.aggregate([{$project: {a: {[op]: [special.path, num]}, _id: 0}}])
-                              .toArray());
-                assert.eq(expected,
-                          coll.aggregate([{$project: {a: {[op]: [num, special.path]}, _id: 0}}])
-                              .toArray());
+                const expected = [{a: num instanceof NumberDecimal ? NumberDecimal(special.val) : special.val}];
+                assert.eq(expected, coll.aggregate([{$project: {a: {[op]: [special.path, num]}, _id: 0}}]).toArray());
+                assert.eq(expected, coll.aggregate([{$project: {a: {[op]: [num, special.path]}, _id: 0}}]).toArray());
             });
         });
     })();

jstests/aggregation/expressions/concat_arrays.js

@@ -19,7 +19,8 @@ import {checkSbeFullyEnabled} from "jstests/libs/query/sbe_util.js";
 const coll = db.projection_expr_concat_arrays;
 coll.drop();
 
-assert.commandWorked(coll.insertOne({
+assert.commandWorked(
+    coll.insertOne({
         int_arr: [1, 2, 3, 4],
         dbl_arr: [10.0, 20.1, 20.4, 50.5],
         nested_arr: [["an", "array"], "arr", [[], [[], "a", "b"]]],
@@ -33,13 +34,14 @@ assert.commandWorked(coll.insertOne({
         str_val: "a string",
         dbl_val: 2.0,
         int_val: 1,
-    obj_val: {a: 1, b: "two"}
-}));
+        obj_val: {a: 1, b: "two"},
+    }),
+);
 
 function runAndAssert(operands, expectedResult) {
     assertArrayEq({
-        actual: coll.aggregate([{$project: {f: {$concatArrays: operands}}}]).map(doc => doc.f),
-        expected: expectedResult
+        actual: coll.aggregate([{$project: {f: {$concatArrays: operands}}}]).map((doc) => doc.f),
+        expected: expectedResult,
     });
 }
 function runAndAssertNull(operands) {
@@ -47,8 +49,7 @@ function runAndAssertNull(operands) {
 }
 
 function runAndAssertThrows(operands) {
-    const error =
-        assert.throws(() => coll.aggregate([{$project: {f: {$concatArrays: operands}}}]).toArray());
+    const error = assert.throws(() => coll.aggregate([{$project: {f: {$concatArrays: operands}}}]).toArray());
     assert.commandFailedWithCode(error, 28664);
 }
 
@@ -65,37 +66,54 @@ runAndAssert([[0], "$int_arr", [5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7]]);
 runAndAssert(["$int_arr", "$str_arr"], [[1, 2, 3, 4, "a", "b", "c"]]);
 runAndAssert(
     ["$obj_arr", "$obj_arr", "$null_arr"],
-    [[{a: 1, b: 2}, {c: 3}, {d: 4, e: 5}, {a: 1, b: 2}, {c: 3}, {d: 4, e: 5}, null, null, null]]);
-runAndAssert(["$int_arr", "$str_arr", "$nested_arr"],
-             [[1, 2, 3, 4, "a", "b", "c", ["an", "array"], "arr", [[], [[], "a", "b"]]]]);
+    [[{a: 1, b: 2}, {c: 3}, {d: 4, e: 5}, {a: 1, b: 2}, {c: 3}, {d: 4, e: 5}, null, null, null]],
+);
+runAndAssert(
+    ["$int_arr", "$str_arr", "$nested_arr"],
+    [[1, 2, 3, 4, "a", "b", "c", ["an", "array"], "arr", [[], [[], "a", "b"]]]],
+);
 runAndAssert(["$int_arr", "$obj_arr"], [[1, 2, 3, 4, {a: 1, b: 2}, {c: 3}, {d: 4, e: 5}]]);
 runAndAssert(["$obj_arr"], [[{a: 1, b: 2}, {c: 3}, {d: 4, e: 5}]]);
-runAndAssert(["$obj_arr", [{o: 123, b: 1}, {y: "o", d: "a"}]],
-             [[{a: 1, b: 2}, {c: 3}, {d: 4, e: 5}, {o: 123, b: 1}, {y: "o", d: "a"}]]);
+runAndAssert(
+    [
+        "$obj_arr",
+        [
+            {o: 123, b: 1},
+            {y: "o", d: "a"},
+        ],
+    ],
+    [[{a: 1, b: 2}, {c: 3}, {d: 4, e: 5}, {o: 123, b: 1}, {y: "o", d: "a"}]],
+);
 
 // Confirm that arrays containing null can be concatenated.
 runAndAssert(["$null_arr"], [[null, null, null]]);
 runAndAssert([[null], "$null_arr"], [[null, null, null, null]]);
 runAndAssert("$one_null_arr", [[null]]);
-runAndAssert(["$null_arr", "$one_null_arr", "$int_arr", "$null_arr"],
-             [[null, null, null, null, 1, 2, 3, 4, null, null, null]]);
+runAndAssert(
+    ["$null_arr", "$one_null_arr", "$int_arr", "$null_arr"],
+    [[null, null, null, null, 1, 2, 3, 4, null, null, null]],
+);
 
 // Test operands that form more complex expressions.
 runAndAssert([{$concatArrays: "$int_arr"}], [[1, 2, 3, 4]]);
-runAndAssert([{$concatArrays: "$int_arr"}, {$concatArrays: {$concatArrays: "$str_arr"}}],
-             [[1, 2, 3, 4, "a", "b", "c"]]);
-runAndAssert(["$str_arr", {$filter: {input: "$int_arr",
-                         as: "num",
-                         cond: { $and: [
-                                    { $gte: [ "$$num", 2 ] },
-                                    { $lte: [ "$$num", 3 ] }
-                                ] }}}, "$int_arr"],
-             [["a", "b", "c", 2, 3, 1, 2, 3, 4]]);
+runAndAssert(
+    [{$concatArrays: "$int_arr"}, {$concatArrays: {$concatArrays: "$str_arr"}}],
+    [[1, 2, 3, 4, "a", "b", "c"]],
+);
+runAndAssert(
+    [
+        "$str_arr",
+        {$filter: {input: "$int_arr", as: "num", cond: {$and: [{$gte: ["$$num", 2]}, {$lte: ["$$num", 3]}]}}},
+        "$int_arr",
+    ],
+    [["a", "b", "c", 2, 3, 1, 2, 3, 4]],
+);
 
 // Confirm that empty arrays can be concatenated with variables.
 runAndAssert(
     ["$str_arr", {$filter: {input: [], cond: {$isArray: [{$concatArrays: [[], "$$this"]}]}}}],
-    [["a", "b", "c"]]);
+    [["a", "b", "c"]],
+);
 
 // Concatenation with no arguments results in the empty array.
 runAndAssert([], [[]]);
@@ -113,11 +131,7 @@ runAndAssertNull(["$not_a_field"]);
 runAndAssertNull(["$null_val"]);
 runAndAssertNull(["$not_a_field", "$null_val"]);
 runAndAssertNull(["$null_val", "$not_a_field"]);
-runAndAssertNull([
-    {$concatArrays: "$int_arr"},
-    null,
-    {$concatArrays: {$concatArrays: ["$obj_arr", "$str_arr"]}}
-]);
+runAndAssertNull([{$concatArrays: "$int_arr"}, null, {$concatArrays: {$concatArrays: ["$obj_arr", "$str_arr"]}}]);
 
 // Confirm edge case where if null precedes non-array input, null is returned.
 runAndAssertNull(["$int_arr", "$null_val", "$int_val"]);
@@ -153,7 +167,8 @@ runAndAssertThrows(["$int_arr", 32]);
 assert(coll.drop());
 
 // Test case where find returns multiple documents.
-assert.commandWorked(coll.insertMany([
+assert.commandWorked(
+    coll.insertMany([
         {arr1: [42, 35.0, 197865432], arr2: ["albatross", "abbacus", "alien"]},
         {arr1: [1], arr2: ["albatross", "abbacus", "alien"]},
         {arr1: [1, 2, 3, 4, 5, 6, 11, 12, 23], arr2: []},
@@ -161,22 +176,29 @@ assert.commandWorked(coll.insertMany([
         {arr1: [], arr2: []},
         {arr1: [1, 2, 3, 4, 5, 6, 11, 12, 23], arr2: null},
         {some_field: "foo"},
-]));
-runAndAssert(["$arr1", "$arr2"], [
+    ]),
+);
+runAndAssert(
+    ["$arr1", "$arr2"],
+    [
         [42, 35.0, 197865432, "albatross", "abbacus", "alien"],
         [1, "albatross", "abbacus", "alien"],
         [1, 2, 3, 4, 5, 6, 11, 12, 23],
         ["foo", "bar"],
         [],
         null,
-    null
-]);
-runAndAssert(["$arr1", [1, 2, 3], "$arr2"], [
+        null,
+    ],
+);
+runAndAssert(
+    ["$arr1", [1, 2, 3], "$arr2"],
+    [
         [42, 35.0, 197865432, 1, 2, 3, "albatross", "abbacus", "alien"],
         [1, 1, 2, 3, "albatross", "abbacus", "alien"],
         [1, 2, 3, 4, 5, 6, 11, 12, 23, 1, 2, 3],
         ["foo", 1, 2, 3, "bar"],
         [1, 2, 3],
         null,
-    null
-]);
+        null,
+    ],
+);

jstests/aggregation/expressions/concat_arrays2.js

@@ -7,26 +7,26 @@ import {assertErrorCode} from "jstests/aggregation/extras/utils.js";
 var coll = db.agg_concat_arrays_expr;
 coll.drop();
 
-assert.commandWorked(coll.insert({a: [1, 2], b: ['three'], c: [], d: [[3], 4], e: null, str: 'x'}));
+assert.commandWorked(coll.insert({a: [1, 2], b: ["three"], c: [], d: [[3], 4], e: null, str: "x"}));
 
 // Basic concatenation.
-var pipeline = [{$project: {_id: 0, all: {$concatArrays: ['$a', '$b', '$c']}}}];
-assert.eq(coll.aggregate(pipeline).toArray(), [{all: [1, 2, 'three']}]);
+var pipeline = [{$project: {_id: 0, all: {$concatArrays: ["$a", "$b", "$c"]}}}];
+assert.eq(coll.aggregate(pipeline).toArray(), [{all: [1, 2, "three"]}]);
 
 // Concatenation with nested arrays.
-pipeline = [{$project: {_id: 0, all: {$concatArrays: ['$a', '$d']}}}];
+pipeline = [{$project: {_id: 0, all: {$concatArrays: ["$a", "$d"]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{all: [1, 2, [3], 4]}]);
 
 // Concatenation with 1 argument.
-pipeline = [{$project: {_id: 0, all: {$concatArrays: ['$a']}}}];
+pipeline = [{$project: {_id: 0, all: {$concatArrays: ["$a"]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{all: [1, 2]}]);
 
 // Any nullish inputs will result in null.
-pipeline = [{$project: {_id: 0, all: {$concatArrays: ['$a', '$e']}}}];
+pipeline = [{$project: {_id: 0, all: {$concatArrays: ["$a", "$e"]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{all: null}]);
-pipeline = [{$project: {_id: 0, all: {$concatArrays: ['$a', '$f']}}}];
+pipeline = [{$project: {_id: 0, all: {$concatArrays: ["$a", "$f"]}}}];
 assert.eq(coll.aggregate(pipeline).toArray(), [{all: null}]);
 
 // Error on any non-array, non-null inputs.
-pipeline = [{$project: {_id: 0, all: {$concatArrays: ['$a', '$str']}}}];
+pipeline = [{$project: {_id: 0, all: {$concatArrays: ["$a", "$str"]}}}];
 assertErrorCode(coll, pipeline, 28664);

jstests/aggregation/expressions/concat_error.js

@@ -8,14 +8,10 @@ let c = db.s6570;
 c.drop();
 c.save({v: "$", w: ".", x: "foo", y: "bar", z: "z\0z"});
 
-assert.eq(c.aggregate({$project: {str: {$concat: ["X", "$x", "Y", "$y"]}}}).toArray()[0].str,
-          "XfooYbar");
-assert.eq(c.aggregate({$project: {str: {$concat: ["$v", "X", "$w", "Y"]}}}).toArray()[0].str,
-          "$X.Y");
-assert.eq(c.aggregate({$project: {str: {$concat: ["$w", "X", "$v", "Y"]}}}).toArray()[0].str,
-          ".X$Y");
-assert.eq(c.aggregate({$project: {str: {$concat: ["X", "$z", "a\0a", "Y"]}}}).toArray()[0].str,
-          "Xz\0za\0aY");
+assert.eq(c.aggregate({$project: {str: {$concat: ["X", "$x", "Y", "$y"]}}}).toArray()[0].str, "XfooYbar");
+assert.eq(c.aggregate({$project: {str: {$concat: ["$v", "X", "$w", "Y"]}}}).toArray()[0].str, "$X.Y");
+assert.eq(c.aggregate({$project: {str: {$concat: ["$w", "X", "$v", "Y"]}}}).toArray()[0].str, ".X$Y");
+assert.eq(c.aggregate({$project: {str: {$concat: ["X", "$z", "a\0a", "Y"]}}}).toArray()[0].str, "Xz\0za\0aY");
 
 // Nullish (both with and without other strings)
 assert.isnull(c.aggregate({$project: {str: {$concat: ["$missing"]}}}).toArray()[0].str);

jstests/aggregation/expressions/concat_preserve_arg_order.js

@@ -2,8 +2,8 @@
 let c = db.c;
 c.drop();
 
-c.save({x: '3'});
+c.save({x: "3"});
 
-let project = {$project: {a: {$concat: ['1', {$concat: ['foo', '$x', 'bar']}, '2']}}};
+let project = {$project: {a: {$concat: ["1", {$concat: ["foo", "$x", "bar"]}, "2"]}}};
 
-assert.eq('1foo3bar2', c.aggregate(project).toArray()[0].a);
+assert.eq("1foo3bar2", c.aggregate(project).toArray()[0].a);

jstests/aggregation/expressions/cond.js

@@ -46,39 +46,42 @@ assertResult(1, [{$and: []}, {$add: [1]}, {$add: [1, 1]}]);
 assertResult(2, [{$or: []}, {$add: [1]}, {$add: [1, 1]}]);
 
 assert(coll.drop());
-assert.commandWorked(coll.insert({t: true, f: false, x: 'foo', y: 'bar'}));
+assert.commandWorked(coll.insert({t: true, f: false, x: "foo", y: "bar"}));
 
 // Field path expressions.
-assertResult('foo', ['$t', '$x', '$y']);
-assertResult('bar', ['$f', '$x', '$y']);
+assertResult("foo", ["$t", "$x", "$y"]);
+assertResult("bar", ["$f", "$x", "$y"]);
 
 assert(coll.drop());
 assert.commandWorked(coll.insert({}));
 
 // Coerce to bool.
-assertResult('a', [1, 'a', 'b']);
-assertResult('a', ['', 'a', 'b']);
-assertResult('b', [0, 'a', 'b']);
+assertResult("a", [1, "a", "b"]);
+assertResult("a", ["", "a", "b"]);
+assertResult("b", [0, "a", "b"]);
 
 // Nested.
 assert(coll.drop());
-assert.commandWorked(coll.insert({noonSense: 'am', mealCombined: 'no'}));
-assert.commandWorked(coll.insert({noonSense: 'am', mealCombined: 'yes'}));
-assert.commandWorked(coll.insert({noonSense: 'pm', mealCombined: 'yes'}));
-assert.commandWorked(coll.insert({noonSense: 'pm', mealCombined: 'no'}));
-assert.eq(['breakfast', 'brunch', 'dinner', 'linner'],
-          coll.aggregate([
+assert.commandWorked(coll.insert({noonSense: "am", mealCombined: "no"}));
+assert.commandWorked(coll.insert({noonSense: "am", mealCombined: "yes"}));
+assert.commandWorked(coll.insert({noonSense: "pm", mealCombined: "yes"}));
+assert.commandWorked(coll.insert({noonSense: "pm", mealCombined: "no"}));
+assert.eq(
+    ["breakfast", "brunch", "dinner", "linner"],
+    coll
+        .aggregate([
             {
                 $project: {
                     meal: {
                         $cond: [
-                                  {$eq: ['$noonSense', 'am']},
-                                  {$cond: [{$eq: ['$mealCombined', 'yes']}, 'brunch', 'breakfast']},
-                                  {$cond: [{$eq: ['$mealCombined', 'yes']}, 'linner', 'dinner']}
-                              ]
-                          }
-                      }
+                            {$eq: ["$noonSense", "am"]},
+                            {$cond: [{$eq: ["$mealCombined", "yes"]}, "brunch", "breakfast"]},
+                            {$cond: [{$eq: ["$mealCombined", "yes"]}, "linner", "dinner"]},
+                        ],
                     },
-                  {$sort: {meal: 1}}
+                },
+            },
+            {$sort: {meal: 1}},
         ])
-              .map(doc => doc.meal));
+        .map((doc) => doc.meal),
+);

jstests/aggregation/expressions/convert.js

@@ -28,14 +28,14 @@ const conversionTestDocs = [
         _id: 9,
         input: "0123456789abcdef01234567",
         target: "objectId",
-        expected: ObjectId("0123456789abcdef01234567")
+        expected: ObjectId("0123456789abcdef01234567"),
     },
     {_id: 10, input: "", target: "bool", expected: true},
     {
         _id: 11,
         input: "1970-01-01T00:00:00.001Z",
         target: "date",
-        expected: ISODate("1970-01-01T00:00:00.001Z")
+        expected: ISODate("1970-01-01T00:00:00.001Z"),
     },
     {_id: 12, input: "1", target: "int", expected: NumberInt(1)},
     {_id: 13, input: "1", target: "long", expected: NumberLong(1)},
@@ -45,20 +45,20 @@ const conversionTestDocs = [
         _id: 15,
         input: ObjectId("0123456789abcdef01234567"),
         target: "string",
-        expected: "0123456789abcdef01234567"
+        expected: "0123456789abcdef01234567",
     },
     {_id: 16, input: ObjectId("0123456789abcdef01234567"), target: "bool", expected: true},
     {
         _id: 17,
         input: ObjectId("0123456789abcdef01234567"),
         target: "objectId",
-        expected: ObjectId("0123456789abcdef01234567")
+        expected: ObjectId("0123456789abcdef01234567"),
     },
     {
         _id: 18,
         input: ObjectId("0123456789abcdef01234567"),
         target: "date",
-        expected: ISODate("1970-08-09T22:25:43Z")
+        expected: ISODate("1970-08-09T22:25:43Z"),
     },
 
     {_id: 19, input: false, target: "double", expected: 0.0},
@@ -73,26 +73,26 @@ const conversionTestDocs = [
         _id: 26,
         input: ISODate("1970-01-01T00:00:00.123Z"),
         target: "string",
-        expected: "1970-01-01T00:00:00.123Z"
+        expected: "1970-01-01T00:00:00.123Z",
     },
     {_id: 27, input: ISODate("1970-01-01T00:00:00.123Z"), target: "bool", expected: true},
     {
         _id: 28,
         input: ISODate("1970-01-01T00:00:00.123Z"),
         target: "date",
-        expected: ISODate("1970-01-01T00:00:00.123Z")
+        expected: ISODate("1970-01-01T00:00:00.123Z"),
     },
     {
         _id: 29,
         input: ISODate("1970-01-01T00:00:00.123Z"),
         target: "long",
-        expected: NumberLong(123)
+        expected: NumberLong(123),
     },
     {
         _id: 30,
         input: ISODate("1970-01-01T00:00:00.123Z"),
         target: "decimal",
-        expected: NumberDecimal("123")
+        expected: NumberDecimal("123"),
     },
 
     {_id: 31, input: NumberInt(1), target: "double", expected: 1.0},
@@ -117,7 +117,7 @@ const conversionTestDocs = [
         _id: 47,
         input: NumberDecimal("1.9"),
         target: "date",
-        expected: ISODate("1970-01-01T00:00:00.001Z")
+        expected: ISODate("1970-01-01T00:00:00.001Z"),
     },
     {_id: 48, input: NumberDecimal("1.9"), target: "int", expected: NumberInt(1)},
     {_id: 49, input: NumberDecimal("1.9"), target: "long", expected: NumberLong(1)},
@@ -138,7 +138,7 @@ const conversionTestDocs = [
         _id: 60,
         input: Timestamp(1, 1),
         target: "date",
-        expected: ISODate("1970-01-01T00:00:01.000Z")
+        expected: ISODate("1970-01-01T00:00:01.000Z"),
     },
 ];
 
@@ -184,7 +184,6 @@ const illegalConversionTestDocs = [
 //
 // One test document for each "nullish" value.
 //
-const nullTestDocs =
-    [{_id: 0, input: null}, {_id: 1, input: undefined}, {_id: 2, /* input is missing */}];
+const nullTestDocs = [{_id: 0, input: null}, {_id: 1, input: undefined}, {_id: 2 /* input is missing */}];
 
 runConvertTests({coll, requiresFCV80, conversionTestDocs, illegalConversionTestDocs, nullTestDocs});

jstests/aggregation/expressions/convert_bindata.js

@@ -148,12 +148,12 @@ const illegalConversionTestDocs = [
     {
         _id: 3,
         input: ObjectId("0123456789abcdef01234567"),
-        target: {type: "binData", subtype: kUUIDSubtype}
+        target: {type: "binData", subtype: kUUIDSubtype},
     },
     {
         _id: 4,
         input: ObjectId("0123456789abcdef01234567"),
-        target: {type: "binData", subtype: kNonUUIDSubtype}
+        target: {type: "binData", subtype: kNonUUIDSubtype},
     },
 
     // Can't convert UUID string to non-UUID BinData.
@@ -161,7 +161,7 @@ const illegalConversionTestDocs = [
         _id: 5,
         input: "867dee52-c331-484e-92d1-c56479b8e67e",
         target: {type: "binData", subtype: kNonUUIDSubtype},
-        format: "uuid"
+        format: "uuid",
     },
 
     // Input is not a valid UUID, base64, hex or utf8 string.
@@ -169,25 +169,25 @@ const illegalConversionTestDocs = [
         _id: 6,
         input: "867dee--52-c331-484e-",
         target: {type: "binData", subtype: kUUIDSubtype},
-        format: "uuid"
+        format: "uuid",
     },
     {
         _id: 7,
         input: "867dee--52-c331-484e-",
         target: {type: "binData", subtype: kNonUUIDSubtype},
-        format: "base64"
+        format: "base64",
     },
     {
         _id: 8,
         input: "867dee--52-c331-484e-",
         target: {type: "binData", subtype: kNonUUIDSubtype},
-        format: "base64url"
+        format: "base64url",
     },
     {
         _id: 9,
         input: "867dee--52-c331-484e-zx",
         target: {type: "binData", subtype: kNonUUIDSubtype},
-        format: "hex"
+        format: "hex",
     },
 
     // When converting from string to BinData, the "auto" format is not allowed, and the "uuid"
@@ -196,25 +196,25 @@ const illegalConversionTestDocs = [
         _id: 10,
         input: "867dee52-c331-484e-92d1-c56479b8e67e",
         target: {type: "binData", subtype: kNonUUIDSubtype},
-        format: "uuid"
+        format: "uuid",
     },
     {
         _id: 11,
         input: "867dee52-c331-484e-92d1-c56479b8e67e",
         target: {type: "binData", subtype: kNonUUIDSubtype},
-        format: "auto"
+        format: "auto",
     },
     {
         _id: 12,
         input: "hn3uUsMxSE6S0cVkebjmfg==",
         target: {type: "binData", subtype: kUUIDSubtype},
-        format: "base64"
+        format: "base64",
     },
     {
         _id: 13,
         input: "hn3uUsMxSE6S0cVkebjmfg==",
         target: {type: "binData", subtype: kUUIDSubtype},
-        format: "auto"
+        format: "auto",
     },
 
     // Forbidden conversions between different binData subtypes
@@ -251,14 +251,14 @@ const invalidArgumentValueDocs = [
         input: "hn3uUsMxSE6S0cVkebjmfg==",
         target: {type: "binData", subtype: -1},
         format: "base64",
-        expectedCode: 4341107
+        expectedCode: 4341107,
     },
     {
         _id: 2,
         input: "hn3uUsMxSE6S0cVkebjmfg==",
         target: {type: "binData", subtype: 1000},
         format: "base64",
-        expectedCode: 4341107
+        expectedCode: 4341107,
     },
     {
         _id: 3,
@@ -266,7 +266,7 @@ const invalidArgumentValueDocs = [
         // User-defined subtypes must be between 128-255.
         target: {type: "binData", subtype: 256},
         format: "base64",
-        expectedCode: 4341107
+        expectedCode: 4341107,
     },
     {
         _id: 4,
@@ -274,12 +274,11 @@ const invalidArgumentValueDocs = [
         // User-defined subtypes must be between 128-255.
         target: {type: "binData", subtype: 127},
         format: "base64",
-        expectedCode: 4341107
+        expectedCode: 4341107,
     },
     // Invalid type.
     {_id: 5, input: 123, target: {type: -2}, expectedCode: ErrorCodes.FailedToParse},
     {_id: 6, input: 123, target: -2, expectedCode: ErrorCodes.FailedToParse},
 ];
 
-runConvertTests(
-    {coll, requiresFCV80, conversionTestDocs, illegalConversionTestDocs, invalidArgumentValueDocs});
+runConvertTests({coll, requiresFCV80, conversionTestDocs, illegalConversionTestDocs, invalidArgumentValueDocs});

jstests/aggregation/expressions/convert_bindata_numeric.js

@@ -218,8 +218,7 @@ const invalidArgumentValueDocs = [
     },
 ];
 
-runConvertTests(
-    {coll, requiresFCV81, conversionTestDocs, illegalConversionTestDocs, invalidArgumentValueDocs});
+runConvertTests({coll, requiresFCV81, conversionTestDocs, illegalConversionTestDocs, invalidArgumentValueDocs});
 
 // Additional tests covering shortcuts and string byteOrder.
 function testConvertNumeric({pipeline: convertPipeline, docs: documents}) {
@@ -227,61 +226,66 @@ function testConvertNumeric({pipeline: convertPipeline, docs: documents}) {
     assert.commandWorked(coll.insertMany(documents));
 
     let aggResult = coll.aggregate(convertPipeline).toArray();
-    aggResult.forEach(doc => {
+    aggResult.forEach((doc) => {
         assert.eq(doc.output, doc.expected);
     });
 }
 
 (function testConvertBindataToLong() {
-    let pipeline = [{
+    let pipeline = [
+        {
             $project: {
                 _id: 0,
                 expected: 1,
-            output: {$convert: {to: "binData", input: "$longInput", byteOrder: "big"}}
-        }
-    }];
+                output: {$convert: {to: "binData", input: "$longInput", byteOrder: "big"}},
+            },
+        },
+    ];
     testConvertNumeric({
         pipeline: pipeline,
         // Hex: "0x00000000000000c8", 8 byte long
-        docs: [{longInput: NumberLong(200), expected: BinData(0, "AAAAAAAAAMg=")}]
+        docs: [{longInput: NumberLong(200), expected: BinData(0, "AAAAAAAAAMg=")}],
     });
 })();
 
 (function testConvertBindataToInt() {
-    let pipeline = [{
+    let pipeline = [
+        {
             $project: {
                 _id: 0,
                 expected: 1,
-            output: {$convert: {to: "binData", input: "$IntInput", byteOrder: "big"}}
-        }
-    }];
+                output: {$convert: {to: "binData", input: "$IntInput", byteOrder: "big"}},
+            },
+        },
+    ];
     testConvertNumeric({
         pipeline: pipeline,
         // Hex: "0xfffffe89", 4 byte int
-        docs: [{IntInput: NumberInt(-375), expected: BinData(0, "///+iQ==")}]
+        docs: [{IntInput: NumberInt(-375), expected: BinData(0, "///+iQ==")}],
     });
 })();
 
 (function testConvertBindataToDouble() {
-    let pipeline = [{
+    let pipeline = [
+        {
             $project: {
                 _id: 0,
                 expected: 1,
-            output: {$convert: {to: "binData", input: "$DoubleInput", byteOrder: "big"}}
-        }
-    }];
+                output: {$convert: {to: "binData", input: "$DoubleInput", byteOrder: "big"}},
+            },
+        },
+    ];
     testConvertNumeric({
         pipeline: pipeline,
         // Hex: "0xC004CCCCCCCCCCCD", 8 byte double precision double
-        docs: [{DoubleInput: -2.6, expected: BinData(0, "wATMzMzMzM0=")}]
+        docs: [{DoubleInput: -2.6, expected: BinData(0, "wATMzMzMzM0=")}],
     });
 })();
 
 (function testConvertBindataToIntShortCut() {
     let pipeline = [{$project: {_id: 0, expected: 1, output: {$toInt: "$binDataInput"}}}];
     // Hex: "0x=02", 1 byte integer
-    testConvertNumeric(
-        {pipeline: pipeline, docs: [{binDataInput: BinData(0, "Ag=="), expected: NumberInt(2)}]});
+    testConvertNumeric({pipeline: pipeline, docs: [{binDataInput: BinData(0, "Ag=="), expected: NumberInt(2)}]});
 })();
 
 (function testConvertBindataToLongShortCut() {
@@ -289,7 +293,7 @@ function testConvertNumeric({pipeline: convertPipeline, docs: documents}) {
     testConvertNumeric({
         pipeline: pipeline,
         // Hex: "0xA2020000", 4 byte long
-        docs: [{binDataInput: BinData(6, "ogIAAA=="), expected: NumberLong(674)}]
+        docs: [{binDataInput: BinData(6, "ogIAAA=="), expected: NumberLong(674)}],
     });
 })();
 
@@ -298,6 +302,6 @@ function testConvertNumeric({pipeline: convertPipeline, docs: documents}) {
     testConvertNumeric({
         pipeline: pipeline,
         // Hex: "0xCDCCCCCCCCCC04C0", 4 byte long
-        docs: [{binDataInput: BinData(0, "zczMzMzMBMA="), expected: -2.6}]
+        docs: [{binDataInput: BinData(0, "zczMzMzMBMA="), expected: -2.6}],
     });
 })();

jstests/aggregation/expressions/convert_with_base.js

@@ -85,7 +85,7 @@ const conversionTestDocs = [
         input: "0123456789abcdef01234567",
         target: "objectId",
         base: 2,
-        expected: ObjectId("0123456789abcdef01234567")
+        expected: ObjectId("0123456789abcdef01234567"),
     },
     {_id: 53, input: ObjectId("0123456789abcdef01234567"), target: "bool", expected: true},
     {
@@ -93,7 +93,7 @@ const conversionTestDocs = [
         input: ObjectId("0123456789abcdef01234567"),
         target: "objectId",
         base: 2,
-        expected: ObjectId("0123456789abcdef01234567")
+        expected: ObjectId("0123456789abcdef01234567"),
     },
     {_id: 55, input: false, target: "double", base: 2, expected: 0.0},
     {_id: 56, input: false, target: "bool", base: 2, expected: false},
@@ -102,14 +102,14 @@ const conversionTestDocs = [
         input: ISODate("1970-01-01T00:00:00.123Z"),
         target: "date",
         base: 2,
-        expected: ISODate("1970-01-01T00:00:00.123Z")
+        expected: ISODate("1970-01-01T00:00:00.123Z"),
     },
     {
         _id: 58,
         input: ISODate("1970-01-01T00:00:00.123Z"),
         target: "long",
         base: 2,
-        expected: NumberLong(123)
+        expected: NumberLong(123),
     },
     {_id: 59, input: NumberInt(1), target: "int", base: 2, expected: NumberInt(1)},
     {_id: 60, input: NumberInt(1), target: "long", base: 2, expected: NumberLong(1)},
@@ -122,7 +122,7 @@ const conversionTestDocs = [
         input: NumberDecimal("1.9"),
         target: "decimal",
         base: 2,
-        expected: NumberDecimal("1.9")
+        expected: NumberDecimal("1.9"),
     },
 
     // Complementary examples of illegal conversions.
@@ -152,28 +152,28 @@ const conversionTestDocs = [
         input: NumberInt(2147483647),
         target: "string",
         base: 2,
-        expected: "1111111111111111111111111111111"
+        expected: "1111111111111111111111111111111",
     },
     {
         _id: 81,
         input: NumberInt(-2147483648),
         target: "string",
         base: 2,
-        expected: "-10000000000000000000000000000000"
+        expected: "-10000000000000000000000000000000",
     },
     {
         _id: 82,
         input: NumberLong("9223372036854775807"),
         target: "string",
         base: 2,
-        expected: "111111111111111111111111111111111111111111111111111111111111111"
+        expected: "111111111111111111111111111111111111111111111111111111111111111",
     },
     {
         _id: 83,
         input: NumberLong("-9223372036854775808"),
         target: "string",
         base: 2,
-        expected: "-1000000000000000000000000000000000000000000000000000000000000000"
+        expected: "-1000000000000000000000000000000000000000000000000000000000000000",
     },
 
     {_id: 84, input: NumberInt(2147483647), target: "string", base: 8, expected: "17777777777"},
@@ -183,14 +183,14 @@ const conversionTestDocs = [
         input: NumberLong("9223372036854775807"),
         target: "string",
         base: 8,
-        expected: "777777777777777777777"
+        expected: "777777777777777777777",
     },
     {
         _id: 87,
         input: NumberLong("-9223372036854775808"),
         target: "string",
         base: 8,
-        expected: "-1000000000000000000000"
+        expected: "-1000000000000000000000",
     },
 
     {_id: 88, input: NumberInt(2147483647), target: "string", base: 10, expected: "2147483647"},
@@ -200,14 +200,14 @@ const conversionTestDocs = [
         input: NumberLong("9223372036854775807"),
         target: "string",
         base: 10,
-        expected: "9223372036854775807"
+        expected: "9223372036854775807",
     },
     {
         _id: 91,
         input: NumberLong("-9223372036854775808"),
         target: "string",
         base: 10,
-        expected: "-9223372036854775808"
+        expected: "-9223372036854775808",
     },
 
     {_id: 92, input: NumberInt(2147483647), target: "string", base: 16, expected: "7FFFFFFF"},
@@ -217,14 +217,14 @@ const conversionTestDocs = [
         input: NumberLong("9223372036854775807"),
         target: "string",
         base: 16,
-        expected: "7FFFFFFFFFFFFFFF"
+        expected: "7FFFFFFFFFFFFFFF",
     },
     {
         _id: 95,
         input: NumberLong("-9223372036854775808"),
         target: "string",
         base: 16,
-        expected: "-8000000000000000"
+        expected: "-8000000000000000",
     },
 ];
 
@@ -259,38 +259,38 @@ const illegalConversionTestDocs = [
         _id: 16,
         input: "1000000000000000000000000000000000000000000000000000000000000000",
         target: "double",
-        base: 2
+        base: 2,
     },
     {
         _id: 17,
         input: "1000000000000000000000000000000000000000000000000000000000000000",
         target: "long",
-        base: 2
+        base: 2,
     },
     {
         _id: 18,
         input: "1000000000000000000000000000000000000000000000000000000000000000",
         target: "decimal",
-        base: 2
+        base: 2,
     },
     {_id: 19, input: "-10000000000000000000000000000001", target: "int", base: 2},
     {
         _id: 20,
         input: "-1000000000000000000000000000000000000000000000000000000000000001",
         target: "double",
-        base: 2
+        base: 2,
     },
     {
         _id: 21,
         input: "-1000000000000000000000000000000000000000000000000000000000000001",
         target: "long",
-        base: 2
+        base: 2,
     },
     {
         _id: 22,
         input: "-1000000000000000000000000000000000000000000000000000000000000001",
         target: "decimal",
-        base: 2
+        base: 2,
     },
 
     {_id: 23, input: "20000000000", target: "int", base: 8},
@@ -363,7 +363,7 @@ const invalidArgumentValueDocs = [
         input: ObjectId("0123456789abcdef01234567"),
         target: "objectId",
         base: 2.1,
-        expectedCode: 3501300
+        expectedCode: 3501300,
     },
     {_id: 56, input: false, target: "bool", base: 3, expectedCode: 3501301},
     {
@@ -371,7 +371,7 @@ const invalidArgumentValueDocs = [
         input: ISODate("1970-01-01T00:00:00.123Z"),
         target: "date",
         base: 2.1,
-        expectedCode: 3501300
+        expectedCode: 3501300,
     },
     {_id: 59, input: NumberInt(1), target: "int", base: 3, expectedCode: 3501301},
     {_id: 62, input: NumberLong(1), target: "long", base: 2.1, expectedCode: 3501300},
@@ -386,5 +386,5 @@ runConvertTests({
     runRoundTripTests: true,
     conversionTestDocs,
     illegalConversionTestDocs,
-    invalidArgumentValueDocs
+    invalidArgumentValueDocs,
 });

jstests/aggregation/expressions/create_oid.js

@@ -32,7 +32,7 @@ function setupCollection() {
         assert(result["_id"].toString().startsWith("ObjectId("));
     }
     // All generated ObjectIds are unique.
-    assert.eq(new Set(resultArray.map(res => res["_id"].toString())).size, resultArray.length);
+    assert.eq(new Set(resultArray.map((res) => res["_id"].toString())).size, resultArray.length);
 }
 
 // Test with invalid arguments.
@@ -40,31 +40,28 @@ setupCollection();
 const failedToParseCode = 9;
 {
     // non-empty object
-    const error = assert.throws(
-        () => coll.aggregate([{$project: {_id: {$createObjectId: {"key": "value"}}}}]).toArray());
+    const error = assert.throws(() =>
+        coll.aggregate([{$project: {_id: {$createObjectId: {"key": "value"}}}}]).toArray(),
+    );
     assert.commandFailedWithCode(error, failedToParseCode);
 }
 {
     // null
-    const error =
-        assert.throws(() => coll.aggregate([{$project: {_id: {$createObjectId: null}}}]).toArray());
+    const error = assert.throws(() => coll.aggregate([{$project: {_id: {$createObjectId: null}}}]).toArray());
     assert.commandFailedWithCode(error, failedToParseCode);
 }
 {
     // array
-    const error = assert.throws(
-        () => coll.aggregate([{$project: {_id: {$createObjectId: ["argument"]}}}]).toArray());
+    const error = assert.throws(() => coll.aggregate([{$project: {_id: {$createObjectId: ["argument"]}}}]).toArray());
     assert.commandFailedWithCode(error, failedToParseCode);
 }
 {
     // object id
-    const error = assert.throws(
-        () => coll.aggregate([{$project: {_id: {$createObjectId: ObjectId()}}}]).toArray());
+    const error = assert.throws(() => coll.aggregate([{$project: {_id: {$createObjectId: ObjectId()}}}]).toArray());
     assert.commandFailedWithCode(error, failedToParseCode);
 }
 {
     // string
-    const error = assert.throws(
-        () => coll.aggregate([{$project: {_id: {$createObjectId: "argument"}}}]).toArray());
+    const error = assert.throws(() => coll.aggregate([{$project: {_id: {$createObjectId: "argument"}}}]).toArray());
     assert.commandFailedWithCode(error, failedToParseCode);
 }

jstests/aggregation/expressions/create_uuid.js

@@ -28,7 +28,7 @@ function basicTest() {
     const pipeline = [
         {$addFields: {uuidField: {$createUUID: {}}}},
         {$project: {uuidStrField: {$toString: "$uuidField"}, uuidField: 1}},
-        {$project: {_id: 0}}
+        {$project: {_id: 0}},
     ];
 
     const resultArray = coll.aggregate(pipeline).toArray();
@@ -56,21 +56,21 @@ function lookupTest() {
     setupCollection();
 
     const pipeline = [
-        {$lookup: {
+        {
+            $lookup: {
                 from: collName,
                 let: {
-                docId: "$_id"
+                    docId: "$_id",
+                },
+                pipeline: [{$addFields: {uuid: {$createUUID: {}}}}],
+                as: "result",
+            },
         },
-            pipeline: [
-                {$addFields: {uuid: {$createUUID: {}}}}
-            ],
-            as: "result"
-        }},
     ];
 
     const resultArray = coll.aggregate(pipeline).toArray();
     assert.eq(resultArray.length, docCount);
-    const s = resultArray.flatMap(doc => doc.result).map(doc => doc.uuid);
+    const s = resultArray.flatMap((doc) => doc.result).map((doc) => doc.uuid);
     const set = new Set(s);
     assert.eq(set.size, docCount * docCount);
 }

jstests/aggregation/expressions/current_date.js

@@ -32,7 +32,7 @@ function basicTest() {
         // Evaluate a $group with another $currentDate expression.
         {$group: {_id: "$time1", time2: {$first: {$currentDate: {}}}}},
         {$project: {time1: "$_id", time2: 1}},
-        {$project: {_id: 0}}
+        {$project: {_id: 0}},
     ];
 
     const resultArray = coll.aggregate(pipeline).toArray();
@@ -55,13 +55,15 @@ try {
         func: (db) => configureFailPoint(db, "sleepBeforeCurrentDateEvaluation", {ms: 2}),
         primaryNodeOnly: false,
     });
-    failPoints.push(...FixtureHelpers.mapOnEachShardNode({
+    failPoints.push(
+        ...FixtureHelpers.mapOnEachShardNode({
             db: db.getSiblingDB("admin"),
             func: (db) => configureFailPoint(db, "sleepBeforeCurrentDateEvaluationSBE", {ms: 2}),
             primaryNodeOnly: false,
-    }));
+        }),
+    );
 
     basicTest();
 } finally {
-    failPoints.forEach(failPoint => failPoint.off());
+    failPoints.forEach((failPoint) => failPoint.off());
 }

jstests/aggregation/expressions/date_add_subtract.js

@@ -26,18 +26,16 @@ function runAndAssertResultOrErrorCode(date, result, errorCode) {
 function runTest({dateArithmeticsSpec, expectedResult, expectedErrorCode}) {
     executeAggregationTestCase(coll, {
         pipeline: [{$project: {_id: 0, newDate: dateArithmeticsSpec}}],
-        inputDocuments: [
-            {_id: 1, date: ISODate("2020-12-31T12:10:05"), unit: "month", timezone: "Europe/Paris"}
-        ],
+        inputDocuments: [{_id: 1, date: ISODate("2020-12-31T12:10:05"), unit: "month", timezone: "Europe/Paris"}],
         expectedErrorCode: expectedErrorCode,
-        expectedResults: expectedResult
-
+        expectedResults: expectedResult,
     });
 }
 
 (function testDateAddWithValidInputs() {
-    runAndAssert({$dateAdd: {startDate: ISODate("2020-11-30T12:10:05Z"), unit: "day", amount: 1}},
-                 [{newDate: ISODate("2020-12-01T12:10:05Z")}]);
+    runAndAssert({$dateAdd: {startDate: ISODate("2020-11-30T12:10:05Z"), unit: "day", amount: 1}}, [
+        {newDate: ISODate("2020-12-01T12:10:05Z")},
+    ]);
 
     // Test that adding with a null argument (non-existing field) results in null.
     runAndAssert({$dateAdd: {startDate: "$dateSent", unit: "day", amount: 1}}, [{newDate: null}]);
@@ -46,148 +44,179 @@ function runTest({dateArithmeticsSpec, expectedResult, expectedErrorCode}) {
 
     runAndAssert({$dateAdd: {startDate: "$date", unit: "day", amount: null}}, [{newDate: null}]);
 
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "$unit", amount: 1, timezone: null}},
-                 [{newDate: null}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "$unit", amount: 1, timezone: null}}, [{newDate: null}]);
 
     // Test combination of null and invalid arguments.
-    runAndAssertResultOrErrorCode({$dateAdd: {startDate: "$dateSent", unit: "workday", amount: 1}},
+    runAndAssertResultOrErrorCode(
+        {$dateAdd: {startDate: "$dateSent", unit: "workday", amount: 1}},
         [{newDate: null}],
-                                  ErrorCodes.FailedToParse);
+        ErrorCodes.FailedToParse,
+    );
 
-    runAndAssert({$dateAdd: {startDate: "New year day", unit: "$timeunit", amount: 1}},
-                 [{newDate: null}]);
+    runAndAssert({$dateAdd: {startDate: "New year day", unit: "$timeunit", amount: 1}}, [{newDate: null}]);
 
     runAndAssertResultOrErrorCode(
         {$dateAdd: {startDate: "$date", unit: "workday", amount: "$amount", timezone: "Unknown"}},
         [{newDate: null}],
-        ErrorCodes.FailedToParse);
+        ErrorCodes.FailedToParse,
+    );
 
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "$unit", amount: 1.5, timezone: null}},
-                 [{newDate: null}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "$unit", amount: 1.5, timezone: null}}, [{newDate: null}]);
 
     // Tests when startDate and result date cross the DST time change in a timezone.
-    runAndAssert({
+    runAndAssert(
+        {
             $dateAdd: {
                 startDate: ISODate("2020-10-24T18:10:00Z"),
                 unit: "hour",
                 amount: 24,
-            timezone: "Europe/Paris"
-        }
+                timezone: "Europe/Paris",
             },
-                 [{newDate: ISODate("2020-10-25T18:10:00Z")}]);
+        },
+        [{newDate: ISODate("2020-10-25T18:10:00Z")}],
+    );
 
     // When adding units of day both the startDate and the result represent 20:10:00 in
     // Europe/Paris. The two dates have different offsets from UTC due to the change in daylight
     // savings time.
-    runAndAssert({
+    runAndAssert(
+        {
             $dateAdd: {
                 startDate: ISODate("2020-10-24T18:10:00Z"),
                 unit: "day",
                 amount: 1,
-            timezone: "Europe/Paris"
-        }
+                timezone: "Europe/Paris",
             },
-                 [{newDate: ISODate("2020-10-25T19:10:00Z")}]);
+        },
+        [{newDate: ISODate("2020-10-25T19:10:00Z")}],
+    );
 
     // The following tests use start date from the document field and all valid values for the
     // 'unit' argument.
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "year", amount: -1}},
-                 [{newDate: ISODate("2019-12-31T12:10:05Z")}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "year", amount: -1}}, [
+        {newDate: ISODate("2019-12-31T12:10:05Z")},
+    ]);
 
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "quarter", amount: 1}},
-                 [{newDate: ISODate("2021-03-31T12:10:05Z")}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "quarter", amount: 1}}, [
+        {newDate: ISODate("2021-03-31T12:10:05Z")},
+    ]);
 
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "month", amount: 2}},
-                 [{newDate: ISODate("2021-02-28T12:10:05Z")}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "month", amount: 2}}, [
+        {newDate: ISODate("2021-02-28T12:10:05Z")},
+    ]);
 
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "week", amount: 1}},
-                 [{newDate: ISODate("2021-01-07T12:10:05Z")}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "week", amount: 1}}, [
+        {newDate: ISODate("2021-01-07T12:10:05Z")},
+    ]);
 
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "day", amount: 1}},
-                 [{newDate: ISODate("2021-01-01T12:10:05Z")}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "day", amount: 1}}, [
+        {newDate: ISODate("2021-01-01T12:10:05Z")},
+    ]);
 
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "hour", amount: 2}},
-                 [{newDate: ISODate("2020-12-31T14:10:05Z")}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "hour", amount: 2}}, [
+        {newDate: ISODate("2020-12-31T14:10:05Z")},
+    ]);
 
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "minute", amount: -20}},
-                 [{newDate: ISODate("2020-12-31T11:50:05Z")}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "minute", amount: -20}}, [
+        {newDate: ISODate("2020-12-31T11:50:05Z")},
+    ]);
 
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "millisecond", amount: 1050}},
-                 [{newDate: ISODate("2020-12-31T12:10:06.05Z")}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "millisecond", amount: 1050}}, [
+        {newDate: ISODate("2020-12-31T12:10:06.05Z")},
+    ]);
 
     // Tests using the document fields for unit and timezone arguments.
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "$unit", amount: 1}},
-                 [{newDate: ISODate("2021-01-31T12:10:05Z")}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "$unit", amount: 1}}, [
+        {newDate: ISODate("2021-01-31T12:10:05Z")},
+    ]);
 
-    runAndAssert({$dateAdd: {startDate: "$date", unit: "month", amount: 2, timezone: "$timezone"}},
-                 [{newDate: ISODate("2021-02-28T12:10:05Z")}]);
+    runAndAssert({$dateAdd: {startDate: "$date", unit: "month", amount: 2, timezone: "$timezone"}}, [
+        {newDate: ISODate("2021-02-28T12:10:05Z")},
+    ]);
 })();
 
 (function testDateSubtractWithValidInputs() {
-    runAndAssert({$dateSubtract: {startDate: "$date", unit: "year", amount: 2}},
-                 [{newDate: ISODate("2018-12-31T12:10:05Z")}]);
+    runAndAssert({$dateSubtract: {startDate: "$date", unit: "year", amount: 2}}, [
+        {newDate: ISODate("2018-12-31T12:10:05Z")},
+    ]);
 
-    runAndAssert({$dateSubtract: {startDate: "$date", unit: "quarter", amount: 2}},
-                 [{newDate: ISODate("2020-06-30T12:10:05Z")}]);
+    runAndAssert({$dateSubtract: {startDate: "$date", unit: "quarter", amount: 2}}, [
+        {newDate: ISODate("2020-06-30T12:10:05Z")},
+    ]);
 
-    runAndAssert({$dateSubtract: {startDate: "$date", unit: "day", amount: 15}},
-                 [{newDate: ISODate("2020-12-16T12:10:05Z")}]);
+    runAndAssert({$dateSubtract: {startDate: "$date", unit: "day", amount: 15}}, [
+        {newDate: ISODate("2020-12-16T12:10:05Z")},
+    ]);
 
-    runAndAssert({$dateSubtract: {startDate: "$date", unit: "hour", amount: 48}},
-                 [{newDate: ISODate("2020-12-29T12:10:05Z")}]);
+    runAndAssert({$dateSubtract: {startDate: "$date", unit: "hour", amount: 48}}, [
+        {newDate: ISODate("2020-12-29T12:10:05Z")},
+    ]);
 
-    runAndAssert({$dateSubtract: {startDate: "$date", unit: "minute", amount: 15}},
-                 [{newDate: ISODate("2020-12-31T11:55:05Z")}]);
+    runAndAssert({$dateSubtract: {startDate: "$date", unit: "minute", amount: 15}}, [
+        {newDate: ISODate("2020-12-31T11:55:05Z")},
+    ]);
 
-    runAndAssert({$dateSubtract: {startDate: "$date", unit: "second", amount: 125}},
-                 [{newDate: ISODate("2020-12-31T12:08:00Z")}]);
+    runAndAssert({$dateSubtract: {startDate: "$date", unit: "second", amount: 125}}, [
+        {newDate: ISODate("2020-12-31T12:08:00Z")},
+    ]);
 
     // Test last day adjustment in UTC.
-    runAndAssert({$dateSubtract: {startDate: "$date", unit: "$unit", amount: 3}},
-                 [{newDate: ISODate("2020-09-30T12:10:05Z")}]);
+    runAndAssert({$dateSubtract: {startDate: "$date", unit: "$unit", amount: 3}}, [
+        {newDate: ISODate("2020-09-30T12:10:05Z")},
+    ]);
 
     // Test last day adjustment and crossing DST time change in a timezone.
-    runAndAssert(
-        {$dateSubtract: {startDate: "$date", unit: "$unit", amount: 3, timezone: "$timezone"}},
-        [{newDate: ISODate("2020-09-30T11:10:05Z")}]);
+    runAndAssert({$dateSubtract: {startDate: "$date", unit: "$unit", amount: 3, timezone: "$timezone"}}, [
+        {newDate: ISODate("2020-09-30T11:10:05Z")},
+    ]);
 
     // Test last day adjustment in the New York timezone.
-    runAndAssert({
+    runAndAssert(
+        {
             $dateSubtract: {
                 startDate: ISODate("2021-01-31T03:00:00Z"),
                 unit: "month",
                 amount: 2,
-            timezone: "America/New_York"
-        }
+                timezone: "America/New_York",
             },
-                 [{newDate: ISODate("2020-12-01T03:00:00Z")}]);
+        },
+        [{newDate: ISODate("2020-12-01T03:00:00Z")}],
+    );
 })();
 
 // Test combinations of $dateAdd and $dateSubtract.
 (function testDateArithmetics() {
-    runAndAssert({
+    runAndAssert(
+        {
             $dateSubtract: {
                 startDate: {$dateAdd: {startDate: "$date", unit: "hour", amount: 2}},
                 unit: "hour",
-            amount: 2
-        }
+                amount: 2,
             },
-                 [{newDate: ISODate("2020-12-31T12:10:05Z")}]);
+        },
+        [{newDate: ISODate("2020-12-31T12:10:05Z")}],
+    );
 
     assert.eq(
-        coll.aggregate([{
-                $project: {newDate: {$dateSubtract: {startDate: "$date", unit: "month", amount: 1}}}
-            }])
+        coll
+            .aggregate([
+                {
+                    $project: {newDate: {$dateSubtract: {startDate: "$date", unit: "month", amount: 1}}},
+                },
+            ])
             .toArray(),
-        coll.aggregate([{
+        coll
+            .aggregate([
+                {
                     $project: {
                         newDate: {
-                        $dateAdd:
-                            {startDate: ISODate("2020-11-30T12:10:00Z"), unit: "second", amount: 5}
-                    }
-                }
-            }])
-            .toArray());
+                            $dateAdd: {startDate: ISODate("2020-11-30T12:10:00Z"), unit: "second", amount: 5},
+                        },
+                    },
+                },
+            ])
+            .toArray(),
+    );
 })();
 
 // Tests for error codes.
@@ -202,34 +231,27 @@ function runTest({dateArithmeticsSpec, expectedResult, expectedErrorCode}) {
     runAndAssertErrorCode({$dateSubtract: {startDate: "$date", units: "day", amount: 1}}, 5166401);
 
     // Invalid string type of startDate argument.
-    runAndAssertErrorCode({$dateSubtract: {startDate: "myBirthDate", unit: "year", amount: 10}},
-                          5166403);
+    runAndAssertErrorCode({$dateSubtract: {startDate: "myBirthDate", unit: "year", amount: 10}}, 5166403);
 
     // Invalid numeric type of unit argument.
     runAndAssertErrorCode({$dateAdd: {startDate: "$date", unit: 1, amount: 10}}, 5166404);
 
     // Invalid value of unit argument.
-    runAndAssertErrorCode({$dateAdd: {startDate: "$date", unit: "epoch", amount: 10}},
-                          ErrorCodes.FailedToParse);
+    runAndAssertErrorCode({$dateAdd: {startDate: "$date", unit: "epoch", amount: 10}}, ErrorCodes.FailedToParse);
 
     // Invalid double type of amount argument.
-    runAndAssertErrorCode({$dateSubtract: {startDate: "$date", unit: "year", amount: 1.001}},
-                          5166405);
+    runAndAssertErrorCode({$dateSubtract: {startDate: "$date", unit: "year", amount: 1.001}}, 5166405);
 
     // Overflow error of dateAdd operation due to large amount.
-    runAndAssertErrorCode(
-        {$dateSubtract: {startDate: "$date", unit: "month", amount: 12 * 300000000}}, 5166406);
+    runAndAssertErrorCode({$dateSubtract: {startDate: "$date", unit: "month", amount: 12 * 300000000}}, 5166406);
 
     // Invalid 'amount' parameter error of dateAdd operation due to large amount.
-    runAndAssertErrorCode(
-        {$dateSubtract: {startDate: "$date", unit: "month", amount: -30000000000}}, 5976500);
+    runAndAssertErrorCode({$dateSubtract: {startDate: "$date", unit: "month", amount: -30000000000}}, 5976500);
 
     // Invalid 'amount' parameter error of dateSubtract operation: long long min value cannot be
     // negated.
-    runAndAssertErrorCode(
-        {$dateSubtract: {startDate: "$date", unit: "day", amount: -9223372036854775808}}, 6045000);
+    runAndAssertErrorCode({$dateSubtract: {startDate: "$date", unit: "day", amount: -9223372036854775808}}, 6045000);
 
     // Invalid value of timezone argument.
-    runAndAssertErrorCode(
-        {$dateAdd: {startDate: "$date", unit: "year", amount: 1, timezone: "Unknown"}}, 40485);
+    runAndAssertErrorCode({$dateAdd: {startDate: "$date", unit: "year", amount: 1, timezone: "Unknown"}}, 40485);
 })();

jstests/aggregation/expressions/date_diff.js

@@ -14,16 +14,18 @@ const coll = testDB.collection;
 assert.commandWorked(testDB.dropDatabase());
 
 const someDate = new Date("2020-11-01T18:23:36Z");
-const aggregationPipelineWithDateDiff = [{
+const aggregationPipelineWithDateDiff = [
+    {
         $project: {
             _id: false,
             date_diff: {
-            $dateDiff:
-                {startDate: "$startDate", endDate: "$endDate", unit: "$unit", timezone: "$timeZone"}
-        }
-    }
-}];
-const aggregationPipelineWithDateDiffAndStartOfWeek = [{
+                $dateDiff: {startDate: "$startDate", endDate: "$endDate", unit: "$unit", timezone: "$timeZone"},
+            },
+        },
+    },
+];
+const aggregationPipelineWithDateDiffAndStartOfWeek = [
+    {
         $project: {
             _id: false,
             date_diff: {
@@ -32,60 +34,69 @@ const aggregationPipelineWithDateDiffAndStartOfWeek = [{
                     endDate: "$endDate",
                     unit: "$unit",
                     timezone: "$timeZone",
-                startOfWeek: "$startOfWeek"
-            }
-        }
-    }
-}];
+                    startOfWeek: "$startOfWeek",
+                },
+            },
+        },
+    },
+];
 const testCases = [
     {
         // Parameters are constants, timezone is not specified.
-        pipeline: [{
+        pipeline: [
+            {
                 $project: {
                     _id: true,
                     date_diff: {
                         $dateDiff: {
                             startDate: new Date("2020-11-01T18:23:36Z"),
                             endDate: new Date("2020-11-02T00:00:00Z"),
-                        unit: "hour"
-                    }
-                }
-            }
-        }],
+                            unit: "hour",
+                        },
+                    },
+                },
+            },
+        ],
         inputDocuments: [{_id: 1}],
-        expectedResults: [{_id: 1, date_diff: NumberLong("6")}]
+        expectedResults: [{_id: 1, date_diff: NumberLong("6")}],
     },
     {
         // Parameters are field paths.
         pipeline: aggregationPipelineWithDateDiffAndStartOfWeek,
-        inputDocuments: [{
+        inputDocuments: [
+            {
                 startDate: new Date("2020-11-01T18:23:36Z"),
                 endDate: new Date("2020-11-02T00:00:00Z"),
                 unit: "hour",
                 timeZone: "America/New_York",
-            startOfWeek: "IGNORED"  // Ignored when unit is not week.
-        }],
-        expectedResults: [{date_diff: NumberLong("6")}]
+                startOfWeek: "IGNORED", // Ignored when unit is not week.
+            },
+        ],
+        expectedResults: [{date_diff: NumberLong("6")}],
     },
     {
         // Parameters are field paths, 'timezone' is not specified.
-        pipeline: [{
+        pipeline: [
+            {
                 $project: {
                     _id: false,
-                date_diff:
-                    {$dateDiff: {startDate: "$startDate", endDate: "$endDate", unit: "$unit"}}
-            }
-        }],
-        inputDocuments: [{
+                    date_diff: {$dateDiff: {startDate: "$startDate", endDate: "$endDate", unit: "$unit"}},
+                },
+            },
+        ],
+        inputDocuments: [
+            {
                 startDate: new Date("2020-11-01T18:23:36Z"),
                 endDate: new Date("2020-11-02T00:00:00Z"),
-            unit: "hour"
-        }],
-        expectedResults: [{date_diff: NumberLong("6")}]
+                unit: "hour",
+            },
+        ],
+        expectedResults: [{date_diff: NumberLong("6")}],
     },
     {
         // 'startDate' and 'endDate' are object ids.
-        pipeline: [{
+        pipeline: [
+            {
                 $project: {
                     _id: false,
                     date_diff: {
@@ -93,24 +104,27 @@ const testCases = [
                             startDate: "$_id",
                             endDate: "$_id",
                             unit: "millisecond",
-                        timezone: "America/New_York"
-                    }
-                }
-            }
-        }],
+                            timezone: "America/New_York",
+                        },
+                    },
+                },
+            },
+        ],
         inputDocuments: [{}],
-        expectedResults: [{date_diff: NumberLong("0")}]
+        expectedResults: [{date_diff: NumberLong("0")}],
     },
     {
         // 'startDate' and 'endDate' are timestamps.
-        pipeline: [{
+        pipeline: [
+            {
                 $project: {
                     _id: false,
-                date_diff: {$dateDiff: {startDate: "$ts", endDate: "$ts", unit: "millisecond"}}
-            }
-        }],
+                    date_diff: {$dateDiff: {startDate: "$ts", endDate: "$ts", unit: "millisecond"}},
+                },
+            },
+        ],
         inputDocuments: [{ts: new Timestamp()}],
-        expectedResults: [{date_diff: NumberLong("0")}]
+        expectedResults: [{date_diff: NumberLong("0")}],
     },
     {
         // Invalid 'startDate' type.
@@ -189,46 +203,53 @@ const testCases = [
     {
         // Invalid 'timezone' value.
         pipeline: aggregationPipelineWithDateDiff,
-        inputDocuments:
-            [{startDate: someDate, endDate: someDate, unit: "hour", timeZone: "America/Invalid"}],
+        inputDocuments: [{startDate: someDate, endDate: someDate, unit: "hour", timeZone: "America/Invalid"}],
         expectedErrorCode: 40485,
     },
     {
         // Specified 'startOfWeek'.
         pipeline: aggregationPipelineWithDateDiffAndStartOfWeek,
-        inputDocuments: [{
+        inputDocuments: [
+            {
                 startDate: new Date("2021-01-24T18:23:36Z"), // Sunday.
                 endDate: new Date("2021-01-25T02:23:36Z"), // Monday.
                 unit: "week",
                 timeZone: "GMT",
-            startOfWeek: "MONDAY"
-        }],
+                startOfWeek: "MONDAY",
+            },
+        ],
         expectedResults: [{date_diff: NumberLong("1")}],
     },
     {
         // Specified 'startOfWeek' and timezone.
         pipeline: aggregationPipelineWithDateDiffAndStartOfWeek,
-        inputDocuments: [{
+        inputDocuments: [
+            {
                 startDate: new Date("2021-01-17T05:00:00Z"), // Sunday in New York.
                 endDate: new Date("2021-01-17T04:59:00Z"), // Saturday in New York.
                 unit: "week",
                 timeZone: "America/New_York",
-            startOfWeek: "sunday"
-        }],
+                startOfWeek: "sunday",
+            },
+        ],
         expectedResults: [{date_diff: NumberLong("-1")}],
     },
     {
         // Unspecified 'startOfWeek' - defaults to Sunday.
-        pipeline: [{
+        pipeline: [
+            {
                 $project: {
                     _id: false,
-                date_diff: {$dateDiff: {startDate: "$startDate", endDate: "$endDate", unit: "week"}}
-            }
-        }],
-        inputDocuments: [{
+                    date_diff: {$dateDiff: {startDate: "$startDate", endDate: "$endDate", unit: "week"}},
+                },
+            },
+        ],
+        inputDocuments: [
+            {
                 startDate: new Date("2021-01-24T18:23:36Z"), // Sunday.
                 endDate: new Date("2021-01-25T02:23:36Z"), // Monday.
-        }],
+            },
+        ],
         expectedResults: [{date_diff: NumberLong("0")}],
     },
     {
@@ -246,30 +267,28 @@ const testCases = [
     {
         // Invalid 'startOfWeek' type.
         pipeline: aggregationPipelineWithDateDiffAndStartOfWeek,
-        inputDocuments: [
-            {startDate: someDate, endDate: someDate, unit: "week", timeZone: "GMT", startOfWeek: 1}
-        ],
+        inputDocuments: [{startDate: someDate, endDate: someDate, unit: "week", timeZone: "GMT", startOfWeek: 1}],
         expectedErrorCode: 5439015,
     },
     {
         // Invalid 'startOfWeek' type, unit is not the week.
         pipeline: aggregationPipelineWithDateDiffAndStartOfWeek,
-        inputDocuments: [
-            {startDate: someDate, endDate: someDate, unit: "hour", timeZone: "GMT", startOfWeek: 1}
-        ],
+        inputDocuments: [{startDate: someDate, endDate: someDate, unit: "hour", timeZone: "GMT", startOfWeek: 1}],
         expectedResults: [{date_diff: NumberLong("0")}],
     },
     {
         // Invalid 'startOfWeek' value.
         pipeline: aggregationPipelineWithDateDiffAndStartOfWeek,
-        inputDocuments: [{
+        inputDocuments: [
+            {
                 startDate: someDate,
                 endDate: someDate,
                 unit: "week",
                 timeZone: "GMT",
-            startOfWeek: "FRIDIE"
-        }],
+                startOfWeek: "FRIDIE",
+            },
+        ],
         expectedErrorCode: 5439016,
-    }
+    },
 ];
-testCases.forEach(testCase => executeAggregationTestCase(coll, testCase));
+testCases.forEach((testCase) => executeAggregationTestCase(coll, testCase));

jstests/aggregation/expressions/date_expr_before_1970.js

@@ -7,35 +7,33 @@ function test(date, testSynthetics) {
     c.drop();
     c.save({date: date});
 
-    var ISOfmt = (date.getUTCMilliseconds() == 0) ? 'ISODate("%Y-%m-%dT%H:%M:%SZ")'
-                                                  : 'ISODate("%Y-%m-%dT%H:%M:%S.%LZ")';
+    var ISOfmt = date.getUTCMilliseconds() == 0 ? 'ISODate("%Y-%m-%dT%H:%M:%SZ")' : 'ISODate("%Y-%m-%dT%H:%M:%S.%LZ")';
 
     // Can't use aggregate helper or assertErrorCode because we need to handle multiple error types
-    var res = c.runCommand('aggregate', {
-        pipeline: [{
+    var res = c.runCommand("aggregate", {
+        pipeline: [
+            {
                 $project: {
                     _id: 0,
-                year: {$year: '$date'},
-                month: {$month: '$date'},
-                dayOfMonth: {$dayOfMonth: '$date'},
-                hour: {$hour: '$date'},
-                minute: {$minute: '$date'},
-                second: {$second: '$date'}
+                    year: {$year: "$date"},
+                    month: {$month: "$date"},
+                    dayOfMonth: {$dayOfMonth: "$date"},
+                    hour: {$hour: "$date"},
+                    minute: {$minute: "$date"},
+                    second: {$second: "$date"},
 
                     // server-6666
-                ,
-                millisecond: {$millisecond: '$date'}
+                    millisecond: {$millisecond: "$date"},
 
                     // server-9289
-                ,
-                millisecondPlusTen: {$millisecond: {$add: ['$date', 10]}}
+                    millisecondPlusTen: {$millisecond: {$add: ["$date", 10]}},
 
                     // server-11118
-                ,
-                format: {$dateToString: {format: ISOfmt, date: '$date'}}
-            }
-        }],
-        cursor: {}
+                    format: {$dateToString: {format: ISOfmt, date: "$date"}},
+                },
+            },
+        ],
+        cursor: {},
     });
 
     if (date.valueOf() < 0 && _isWindows() && res.code == 16422) {
@@ -58,9 +56,11 @@ function test(date, testSynthetics) {
     assert.eq(res.cursor.firstBatch[0].minute, date.getUTCMinutes(), "minute");
     assert.eq(res.cursor.firstBatch[0].second, date.getUTCSeconds(), "second");
     assert.eq(res.cursor.firstBatch[0].millisecond, date.getUTCMilliseconds(), "millisecond");
-    assert.eq(res.cursor.firstBatch[0].millisecondPlusTen,
+    assert.eq(
+        res.cursor.firstBatch[0].millisecondPlusTen,
         (date.getUTCMilliseconds() + 10) % 1000,
-              "millisecondPlusTen");
+        "millisecondPlusTen",
+    );
     assert.eq(res.cursor.firstBatch[0].format, date.tojson(), "format");
     assert.eq(res.cursor.firstBatch[0], {
         year: date.getUTCFullYear(),
@@ -70,8 +70,8 @@ function test(date, testSynthetics) {
         minute: date.getUTCMinutes(),
         second: date.getUTCSeconds(),
         millisecond: date.getUTCMilliseconds(),
-        millisecondPlusTen: ((date.getUTCMilliseconds() + 10) % 1000),
-        format: date.tojson()
+        millisecondPlusTen: (date.getUTCMilliseconds() + 10) % 1000,
+        format: date.tojson(),
     });
 
     if (testSynthetics) {
@@ -79,39 +79,39 @@ function test(date, testSynthetics) {
         res = c.aggregate({
             $project: {
                 _id: 0,
-                week: {$week: '$date'},
-                dayOfWeek: {$dayOfWeek: '$date'},
-                dayOfYear: {$dayOfYear: '$date'},
-                format: {$dateToString: {format: '%U-%w-%j', date: '$date'}}
-            }
+                week: {$week: "$date"},
+                dayOfWeek: {$dayOfWeek: "$date"},
+                dayOfYear: {$dayOfYear: "$date"},
+                format: {$dateToString: {format: "%U-%w-%j", date: "$date"}},
+            },
         });
 
-        assert.eq(res.toArray()[0], {week: 0, dayOfWeek: 7, dayOfYear: 2, format: '00-7-002'});
+        assert.eq(res.toArray()[0], {week: 0, dayOfWeek: 7, dayOfYear: 2, format: "00-7-002"});
     }
 }
 
 // Basic test
-test(ISODate('1960-01-02 03:04:05.006Z'), true);
+test(ISODate("1960-01-02 03:04:05.006Z"), true);
 
 // Testing special rounding rules for seconds
-test(ISODate('1960-01-02 03:04:04.999Z'), false);  // second = 4
-test(ISODate('1960-01-02 03:04:05.000Z'), true);   // second = 5
-test(ISODate('1960-01-02 03:04:05.001Z'), true);   // second = 5
-test(ISODate('1960-01-02 03:04:05.999Z'), true);   // second = 5
+test(ISODate("1960-01-02 03:04:04.999Z"), false); // second = 4
+test(ISODate("1960-01-02 03:04:05.000Z"), true); // second = 5
+test(ISODate("1960-01-02 03:04:05.001Z"), true); // second = 5
+test(ISODate("1960-01-02 03:04:05.999Z"), true); // second = 5
 
 // Test date before 1900 (negative tm_year values from gmtime)
-test(ISODate('1860-01-02 03:04:05.006Z'), false);
+test(ISODate("1860-01-02 03:04:05.006Z"), false);
 
 // Test with time_t == -1 and 0
 test(new Date(-1000), false);
 test(new Date(0), false);
 
 // Testing dates between 1970 and 2000
-test(ISODate('1970-01-01 00:00:00.000Z'), false);
-test(ISODate('1970-01-01 00:00:00.999Z'), false);
-test(ISODate('1980-05-20 12:53:64.834Z'), false);
-test(ISODate('1999-12-31 00:00:00.000Z'), false);
-test(ISODate('1999-12-31 23:59:59.999Z'), false);
+test(ISODate("1970-01-01 00:00:00.000Z"), false);
+test(ISODate("1970-01-01 00:00:00.999Z"), false);
+test(ISODate("1980-05-20 12:53:64.834Z"), false);
+test(ISODate("1999-12-31 00:00:00.000Z"), false);
+test(ISODate("1999-12-31 23:59:59.999Z"), false);
 
 // Test date > 2000 for completeness (using now)
 test(new Date(), false);

jstests/aggregation/expressions/date_expressions_with_timezones.js

@@ -13,7 +13,8 @@ import "jstests/libs/query/sbe_assert_error_override.js";
 const coll = db.date_expressions_with_time_zones;
 coll.drop();
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         // Three sales on 2017-06-16 in UTC.
         {_id: 0, date: new ISODate("2017-06-16T00:00:00.000Z"), sales: 1},
         {_id: 1, date: new ISODate("2017-06-16T12:02:21.013Z"), sales: 2},
@@ -21,28 +22,31 @@ assert.commandWorked(coll.insert([
         {_id: 2, date: new ISODate("2017-06-17T00:00:00.000Z"), sales: 2},
         {_id: 3, date: new ISODate("2017-06-17T12:02:21.013Z"), sales: 2},
         {_id: 4, date: new ISODate("2017-06-17T15:00:33.101Z"), sales: 2},
-]));
+    ]),
+);
 
 // Compute how many sales happened on each day, in UTC.
 assert.eq(
     [
         {_id: {year: 2017, month: 6, day: 16}, totalSales: 3},
-        {_id: {year: 2017, month: 6, day: 17}, totalSales: 6}
+        {_id: {year: 2017, month: 6, day: 17}, totalSales: 6},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $group: {
                     _id: {
                         year: {$year: "$date"},
                         month: {$month: "$date"},
-                        day: {$dayOfMonth: "$date"}
+                        day: {$dayOfMonth: "$date"},
                     },
-                    totalSales: {$sum: "$sales"}
-                }
+                    totalSales: {$sum: "$sales"},
                 },
-            {$sort: {"_id.year": 1, "_id.month": 1, "_id.day": 1}}
+            },
+            {$sort: {"_id.year": 1, "_id.month": 1, "_id.day": 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 // Compute how many sales happened on each day, in New York. The sales made at midnight should
 // move to the previous days.
@@ -50,44 +54,48 @@ assert.eq(
     [
         {_id: {year: 2017, month: 6, day: 15}, totalSales: 1},
         {_id: {year: 2017, month: 6, day: 16}, totalSales: 4},
-        {_id: {year: 2017, month: 6, day: 17}, totalSales: 4}
+        {_id: {year: 2017, month: 6, day: 17}, totalSales: 4},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $group: {
                     _id: {
                         year: {$year: {date: "$date", timezone: "America/New_York"}},
                         month: {$month: {date: "$date", timezone: "America/New_York"}},
-                        day: {$dayOfMonth: {date: "$date", timezone: "America/New_York"}}
+                        day: {$dayOfMonth: {date: "$date", timezone: "America/New_York"}},
                     },
-                    totalSales: {$sum: "$sales"}
-                }
+                    totalSales: {$sum: "$sales"},
                 },
-            {$sort: {"_id.year": 1, "_id.month": 1, "_id.day": 1}}
+            },
+            {$sort: {"_id.year": 1, "_id.month": 1, "_id.day": 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 // Compute how many sales happened on each day, in Sydney (+10 hours).
 assert.eq(
     [
         {_id: {year: 2017, month: 6, day: 16}, totalSales: 3},
         {_id: {year: 2017, month: 6, day: 17}, totalSales: 4},
-        {_id: {year: 2017, month: 6, day: 18}, totalSales: 2}
+        {_id: {year: 2017, month: 6, day: 18}, totalSales: 2},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $group: {
                     _id: {
                         year: {$year: {date: "$date", timezone: "Australia/Sydney"}},
                         month: {$month: {date: "$date", timezone: "Australia/Sydney"}},
-                        day: {$dayOfMonth: {date: "$date", timezone: "Australia/Sydney"}}
+                        day: {$dayOfMonth: {date: "$date", timezone: "Australia/Sydney"}},
                     },
-                    totalSales: {$sum: "$sales"}
-                }
+                    totalSales: {$sum: "$sales"},
                 },
-            {$sort: {"_id.year": 1, "_id.month": 1, "_id.day": 1}}
+            },
+            {$sort: {"_id.year": 1, "_id.month": 1, "_id.day": 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 assert(coll.drop());
 assert.commandWorked(coll.insert({}));
@@ -101,36 +109,38 @@ function runDateTimeExpressionWithTimezone(exprName, tz) {
 
 function testDateTimeExpression(exprName, expectedValues) {
     assert(coll.drop());
-    assert.commandWorked(
-        coll.insert({date: ISODate("2017-01-16T01:02:03.456Z"), timezone: "America/Sao_Paulo"}));
-    assert.eq(expectedValues.idBasedTzExpected,
-              runDateTimeExpressionWithTimezone(exprName, "$timezone").cursor.firstBatch[0].out);
+    assert.commandWorked(coll.insert({date: ISODate("2017-01-16T01:02:03.456Z"), timezone: "America/Sao_Paulo"}));
     assert.eq(
         expectedValues.idBasedTzExpected,
-        runDateTimeExpressionWithTimezone(exprName, "America/Sao_Paulo").cursor.firstBatch[0].out);
+        runDateTimeExpressionWithTimezone(exprName, "$timezone").cursor.firstBatch[0].out,
+    );
+    assert.eq(
+        expectedValues.idBasedTzExpected,
+        runDateTimeExpressionWithTimezone(exprName, "America/Sao_Paulo").cursor.firstBatch[0].out,
+    );
 
     // Test expression with offset based timezone
     assert(coll.drop());
-    assert.commandWorked(
-        coll.insert({date: ISODate("2017-01-01T01:02:03.456Z"), timezone: "-01:30"}));
-    assert.eq(expectedValues.offsetBasedTzExpected,
-              runDateTimeExpressionWithTimezone(exprName, "$timezone").cursor.firstBatch[0].out);
-    assert.eq(expectedValues.offsetBasedTzExpected,
-              runDateTimeExpressionWithTimezone(exprName, "-01:30").cursor.firstBatch[0].out);
+    assert.commandWorked(coll.insert({date: ISODate("2017-01-01T01:02:03.456Z"), timezone: "-01:30"}));
+    assert.eq(
+        expectedValues.offsetBasedTzExpected,
+        runDateTimeExpressionWithTimezone(exprName, "$timezone").cursor.firstBatch[0].out,
+    );
+    assert.eq(
+        expectedValues.offsetBasedTzExpected,
+        runDateTimeExpressionWithTimezone(exprName, "-01:30").cursor.firstBatch[0].out,
+    );
 
     // Test expression when document has no $timezone field
     assert(coll.drop());
     assert.commandWorked(coll.insert({date: ISODate("2017-01-16T01:02:03.456Z")}));
-    assert.eq(null,
-              runDateTimeExpressionWithTimezone(exprName, "$timezone").cursor.firstBatch[0].out);
-    assert.eq(expectedValues.noTzExpected,
-              runDateTimeExpressionWithTimezone(exprName).cursor.firstBatch[0].out);
+    assert.eq(null, runDateTimeExpressionWithTimezone(exprName, "$timezone").cursor.firstBatch[0].out);
+    assert.eq(expectedValues.noTzExpected, runDateTimeExpressionWithTimezone(exprName).cursor.firstBatch[0].out);
 
     // Test expression when document has no date field
     assert(coll.drop());
     assert.commandWorked(coll.insert({timezone: "America/Sao_Paulo"}));
-    assert.eq(null,
-              runDateTimeExpressionWithTimezone(exprName, "$timezone").cursor.firstBatch[0].out);
+    assert.eq(null, runDateTimeExpressionWithTimezone(exprName, "$timezone").cursor.firstBatch[0].out);
 
     // test with invalid timezone identifier
     assert(coll.drop());
@@ -146,36 +156,23 @@ function testDateTimeExpression(exprName, expectedValues) {
 
     // test with invalid date type
     assert(coll.drop());
-    assert.commandWorked(
-        coll.insert({date: "2017-06-16T00:00:00.000Z", timezone: "America/Sao_Paulo"}));
+    assert.commandWorked(coll.insert({date: "2017-06-16T00:00:00.000Z", timezone: "America/Sao_Paulo"}));
     assert.commandFailedWithCode(runDateTimeExpressionWithTimezone(exprName, "$timezone"), 16006);
 }
 
-testDateTimeExpression("$dayOfWeek",
-                       {idBasedTzExpected: 1, offsetBasedTzExpected: 7, noTzExpected: 2});
-testDateTimeExpression("$dayOfMonth",
-                       {idBasedTzExpected: 15, offsetBasedTzExpected: 31, noTzExpected: 16});
-testDateTimeExpression("$dayOfYear",
-                       {idBasedTzExpected: 15, offsetBasedTzExpected: 366, noTzExpected: 16});
-testDateTimeExpression("$year",
-                       {idBasedTzExpected: 2017, offsetBasedTzExpected: 2016, noTzExpected: 2017});
-testDateTimeExpression("$month",
-                       {idBasedTzExpected: 1, offsetBasedTzExpected: 12, noTzExpected: 1});
-testDateTimeExpression("$hour",
-                       {idBasedTzExpected: 23, offsetBasedTzExpected: 23, noTzExpected: 1});
-testDateTimeExpression("$minute",
-                       {idBasedTzExpected: 2, offsetBasedTzExpected: 32, noTzExpected: 2});
-testDateTimeExpression("$second",
-                       {idBasedTzExpected: 3, offsetBasedTzExpected: 3, noTzExpected: 3});
-testDateTimeExpression("$millisecond",
-                       {idBasedTzExpected: 456, offsetBasedTzExpected: 456, noTzExpected: 456});
+testDateTimeExpression("$dayOfWeek", {idBasedTzExpected: 1, offsetBasedTzExpected: 7, noTzExpected: 2});
+testDateTimeExpression("$dayOfMonth", {idBasedTzExpected: 15, offsetBasedTzExpected: 31, noTzExpected: 16});
+testDateTimeExpression("$dayOfYear", {idBasedTzExpected: 15, offsetBasedTzExpected: 366, noTzExpected: 16});
+testDateTimeExpression("$year", {idBasedTzExpected: 2017, offsetBasedTzExpected: 2016, noTzExpected: 2017});
+testDateTimeExpression("$month", {idBasedTzExpected: 1, offsetBasedTzExpected: 12, noTzExpected: 1});
+testDateTimeExpression("$hour", {idBasedTzExpected: 23, offsetBasedTzExpected: 23, noTzExpected: 1});
+testDateTimeExpression("$minute", {idBasedTzExpected: 2, offsetBasedTzExpected: 32, noTzExpected: 2});
+testDateTimeExpression("$second", {idBasedTzExpected: 3, offsetBasedTzExpected: 3, noTzExpected: 3});
+testDateTimeExpression("$millisecond", {idBasedTzExpected: 456, offsetBasedTzExpected: 456, noTzExpected: 456});
 testDateTimeExpression("$week", {idBasedTzExpected: 3, offsetBasedTzExpected: 52, noTzExpected: 3});
-testDateTimeExpression("$isoWeekYear",
-                       {idBasedTzExpected: 2017, offsetBasedTzExpected: 2016, noTzExpected: 2017});
-testDateTimeExpression("$isoDayOfWeek",
-                       {idBasedTzExpected: 7, offsetBasedTzExpected: 6, noTzExpected: 1});
-testDateTimeExpression("$isoWeek",
-                       {idBasedTzExpected: 2, offsetBasedTzExpected: 52, noTzExpected: 3});
+testDateTimeExpression("$isoWeekYear", {idBasedTzExpected: 2017, offsetBasedTzExpected: 2016, noTzExpected: 2017});
+testDateTimeExpression("$isoDayOfWeek", {idBasedTzExpected: 7, offsetBasedTzExpected: 6, noTzExpected: 1});
+testDateTimeExpression("$isoWeek", {idBasedTzExpected: 2, offsetBasedTzExpected: 52, noTzExpected: 3});
 
 // Make sure the data type returned by the date/time expressions is correct
 function testDateTimeExpressionType(exprName, exprType) {

jstests/aggregation/expressions/date_from_string.js

@@ -1,10 +1,6 @@
 import "jstests/libs/query/sbe_assert_error_override.js";
 
-import {
-    anyEq,
-    assertErrCodeAndErrMsgContains,
-    assertErrorCode
-} from "jstests/aggregation/extras/utils.js";
+import {anyEq, assertErrCodeAndErrMsgContains, assertErrorCode} from "jstests/aggregation/extras/utils.js";
 
 const coll = db.date_from_string;
 
@@ -18,61 +14,63 @@ let testCases = [
     {
         expect: "2017-07-04T11:56:02Z",
         inputString: "2017-07-04T11:56:02Z",
-        format: "%Y-%m-%dT%H:%M:%SZ"
+        format: "%Y-%m-%dT%H:%M:%SZ",
     },
     {
         expect: "2017-07-04T11:56:02.813Z",
         inputString: "2017-07-04T11:56:02.813Z",
-        format: "%Y-%m-%dT%H:%M:%S.%LZ"
+        format: "%Y-%m-%dT%H:%M:%S.%LZ",
     },
     {
         expect: "2017-07-04T11:56:02.810Z",
         inputString: "2017-07-04T11:56:02.81Z",
-        format: "%Y-%m-%dT%H:%M:%S.%LZ"
+        format: "%Y-%m-%dT%H:%M:%S.%LZ",
     },
     {
         expect: "2017-07-04T11:56:02.800Z",
         inputString: "2017-07-04T11:56:02.8Z",
-        format: "%Y-%m-%dT%H:%M:%S.%LZ"
+        format: "%Y-%m-%dT%H:%M:%S.%LZ",
     },
     {
         expect: "2017-07-04T11:56:02Z",
         inputString: "2017-07-04T11:56.02",
-        format: "%Y-%m-%dT%H:%M.%S"
+        format: "%Y-%m-%dT%H:%M.%S",
     },
     {
         expect: "2017-07-04T11:56:02.813Z",
         inputString: "2017-07-04T11:56.02.813",
-        format: "%Y-%m-%dT%H:%M.%S.%L"
+        format: "%Y-%m-%dT%H:%M.%S.%L",
     },
     {
         expect: "2017-07-04T11:56:02.810Z",
         inputString: "2017-07-04T11:56.02.81",
-        format: "%Y-%m-%dT%H:%M.%S.%L"
+        format: "%Y-%m-%dT%H:%M.%S.%L",
     },
     {
         expect: "2017-07-04T11:56:02.800Z",
         inputString: "2017-07-04T11:56.02.8",
-        format: "%Y-%m-%dT%H:%M.%S.%L"
+        format: "%Y-%m-%dT%H:%M.%S.%L",
     },
 ];
 testCases.forEach(function (testCase) {
     assert.eq(
         [{_id: 0, date: ISODate(testCase.expect)}],
-        coll.aggregate({$project: {date: {$dateFromString: {dateString: testCase.inputString}}}})
-            .toArray(),
-        tojson(testCase));
+        coll.aggregate({$project: {date: {$dateFromString: {dateString: testCase.inputString}}}}).toArray(),
+        tojson(testCase),
+    );
     assert.eq(
         [{_id: 0, date: ISODate(testCase.expect)}],
-        coll.aggregate({
+        coll
+            .aggregate({
                 $project: {
                     date: {
-                        $dateFromString: {dateString: testCase.inputString, format: testCase.format}
-                    }
-                }
+                        $dateFromString: {dateString: testCase.inputString, format: testCase.format},
+                    },
+                },
             })
             .toArray(),
-        tojson(testCase));
+        tojson(testCase),
+    );
 });
 
 /* --------------------------------------------------------------------------------------- */
@@ -85,50 +83,55 @@ testCases = [
     {
         expect: "2017-07-04T10:56:02Z",
         inputString: "2017-07-04T11:56.02",
-        format: "%Y-%m-%dT%H:%M.%S"
+        format: "%Y-%m-%dT%H:%M.%S",
     },
     {
         expect: "2017-07-04T10:56:02.813Z",
         inputString: "2017-07-04T11:56.02.813",
-        format: "%Y-%m-%dT%H:%M.%S.%L"
+        format: "%Y-%m-%dT%H:%M.%S.%L",
     },
     {
         expect: "2017-07-04T10:56:02.810Z",
         inputString: "2017-07-04T11:56.02.81",
-        format: "%Y-%m-%dT%H:%M.%S.%L"
+        format: "%Y-%m-%dT%H:%M.%S.%L",
     },
     {
         expect: "2017-07-04T10:56:02.800Z",
         inputString: "2017-07-04T11:56.02.8",
-        format: "%Y-%m-%dT%H:%M.%S.%L"
+        format: "%Y-%m-%dT%H:%M.%S.%L",
     },
 ];
 testCases.forEach(function (testCase) {
-    assert.eq([{_id: 0, date: ISODate(testCase.expect)}],
-              coll.aggregate({
+    assert.eq(
+        [{_id: 0, date: ISODate(testCase.expect)}],
+        coll
+            .aggregate({
                 $project: {
                     date: {
-                              $dateFromString:
-                                  {dateString: testCase.inputString, timezone: "Europe/London"}
-                          }
-                      }
+                        $dateFromString: {dateString: testCase.inputString, timezone: "Europe/London"},
+                    },
+                },
             })
             .toArray(),
-              tojson(testCase));
-    assert.eq([{_id: 0, date: ISODate(testCase.expect)}],
-              coll.aggregate({
+        tojson(testCase),
+    );
+    assert.eq(
+        [{_id: 0, date: ISODate(testCase.expect)}],
+        coll
+            .aggregate({
                 $project: {
                     date: {
                         $dateFromString: {
                             dateString: testCase.inputString,
                             timezone: "Europe/London",
-                                  format: testCase.format
-                              }
-                          }
-                      }
+                            format: testCase.format,
+                        },
+                    },
+                },
             })
             .toArray(),
-              tojson(testCase));
+        tojson(testCase),
+    );
 });
 
 /* --------------------------------------------------------------------------------------- */
@@ -141,61 +144,68 @@ testCases = [
     {
         expect: "2017-07-04T10:56:02Z",
         inputString: "2017-07-04T11:56.02",
-        format: "%Y-%m-%dT%H:%M.%S"
+        format: "%Y-%m-%dT%H:%M.%S",
     },
     {
         expect: "2017-07-04T10:56:02.813Z",
         inputString: "2017-07-04T11:56.02.813",
-        format: "%Y-%m-%dT%H:%M.%S.%L"
+        format: "%Y-%m-%dT%H:%M.%S.%L",
     },
     {
         expect: "2017-07-04T10:56:02.810Z",
         inputString: "2017-07-04T11:56.02.81",
-        format: "%Y-%m-%dT%H:%M.%S.%L"
+        format: "%Y-%m-%dT%H:%M.%S.%L",
     },
     {
         expect: "2017-07-04T10:56:02.800Z",
         inputString: "2017-07-04T11:56.02.8",
-        format: "%Y-%m-%dT%H:%M.%S.%L"
+        format: "%Y-%m-%dT%H:%M.%S.%L",
     },
 ];
 testCases.forEach(function (testCase) {
     assert.eq(
         [{_id: 0, date: ISODate(testCase.expect)}],
-        coll.aggregate({
+        coll
+            .aggregate({
                 $project: {
-                    date: {$dateFromString: {dateString: testCase.inputString, timezone: "+01:00"}}
-                }
+                    date: {$dateFromString: {dateString: testCase.inputString, timezone: "+01:00"}},
+                },
             })
             .toArray(),
-        tojson(testCase));
-    assert.eq([{_id: 0, date: ISODate(testCase.expect)}],
-              coll.aggregate({
+        tojson(testCase),
+    );
+    assert.eq(
+        [{_id: 0, date: ISODate(testCase.expect)}],
+        coll
+            .aggregate({
                 $project: {
                     date: {
                         $dateFromString: {
                             dateString: testCase.inputString,
                             timezone: "+01:00",
-                                  format: testCase.format
-                              }
-                          }
-                      }
+                            format: testCase.format,
+                        },
+                    },
+                },
             })
             .toArray(),
-              tojson(testCase));
+        tojson(testCase),
+    );
 });
 
 /* --------------------------------------------------------------------------------------- */
 /* Normal format tests from data. */
 
 coll.drop();
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, dateString: "2017-07-06T12:35:37Z", format: "%Y-%m-%dT%H:%M:%SZ"},
         {_id: 1, dateString: "2017-07-06T12:35:37.513Z", format: "%Y-%m-%dT%H:%M:%S.%LZ"},
         {_id: 2, dateString: "2017-07-06T12:35:37", format: "%Y-%m-%dT%H:%M:%S"},
         {_id: 3, dateString: "2017-07-06T12:35:37.513", format: "%Y-%m-%dT%H:%M:%S.%L"},
         {_id: 4, dateString: "1960-07-10T12:10:37.448", format: "%Y-%m-%dT%H:%M:%S.%L"},
-]));
+    ]),
+);
 
 let expectedResults = [
     {"_id": 0, "date": ISODate("2017-07-06T12:35:37Z")},
@@ -204,25 +214,30 @@ let expectedResults = [
     {"_id": 3, "date": ISODate("2017-07-06T12:35:37.513Z")},
     {"_id": 4, "date": ISODate("1960-07-10T12:10:37.448Z")},
 ];
-assert.eq(expectedResults,
-          coll.aggregate([
+assert.eq(
+    expectedResults,
+    coll
+        .aggregate([
             {
                 $project: {date: {$dateFromString: {dateString: "$dateString"}}},
             },
-                  {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-              .toArray());
+        .toArray(),
+);
 
 // Repeat the test with an explicit format specifier string.
 assert.eq(
     expectedResults,
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $project: {date: {$dateFromString: {dateString: "$dateString", format: "$format"}}},
             },
-            {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 expectedResults = [
     {"_id": 0, "date": new Date(1499344537000)},
@@ -231,31 +246,37 @@ expectedResults = [
     {"_id": 3, "date": new Date(1499344537513)},
     {"_id": 4, "date": new Date(-299072962552)},
 ];
-assert.eq(expectedResults,
-          coll.aggregate([
+assert.eq(
+    expectedResults,
+    coll
+        .aggregate([
             {
                 $project: {date: {$dateFromString: {dateString: "$dateString"}}},
             },
-                  {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-              .toArray());
+        .toArray(),
+);
 
 // Repeat the test with an explicit format specifier string.
 assert.eq(
     expectedResults,
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $project: {date: {$dateFromString: {dateString: "$dateString", format: "$format"}}},
             },
-            {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* Normal format tests from data, with time zone. */
 
 coll.drop();
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, dateString: "2017-07-06T12:35:37.513", timezone: "GMT"},
         {_id: 1, dateString: "2017-07-06T12:35:37.513", timezone: "UTC"},
         {_id: 2, dateString: "1960-07-10T12:35:37.513", timezone: "America/New_York"},
@@ -263,7 +284,8 @@ assert.commandWorked(coll.insert([
         {_id: 4, dateString: "2017-07-06T12:35:37.513", timezone: "America/Los_Angeles"},
         {_id: 5, dateString: "2017-07-06T12:35:37.513", timezone: "Europe/Paris"},
         {_id: 6, dateString: "2017-07-06T12:35:37.513", timezone: "+04:00"},
-]));
+    ]),
+);
 
 expectedResults = [
     {"_id": 0, "date": ISODate("2017-07-06T12:35:37.513Z")},
@@ -277,63 +299,66 @@ expectedResults = [
 
 assert.eq(
     expectedResults,
-    coll.aggregate([
+    coll
+        .aggregate([
             {
-                $project:
-                    {date: {$dateFromString: {dateString: "$dateString", timezone: "$timezone"}}},
+                $project: {date: {$dateFromString: {dateString: "$dateString", timezone: "$timezone"}}},
             },
-            {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 // Repeat the test with an explicit format specifier string.
-assert.eq(expectedResults,
-          coll.aggregate([
+assert.eq(
+    expectedResults,
+    coll
+        .aggregate([
             {
                 $project: {
                     date: {
                         $dateFromString: {
                             dateString: "$dateString",
                             timezone: "$timezone",
-                                  format: "%Y-%m-%dT%H:%M:%S.%L"
-                              }
-                          }
+                            format: "%Y-%m-%dT%H:%M:%S.%L",
                         },
                     },
-                  {$sort: {_id: 1}}
+                },
+            },
+            {$sort: {_id: 1}},
         ])
-              .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* dateString from data with timezone as constant */
 
 coll.drop();
-assert.commandWorked(coll.insert([
-    {_id: 0, dateString: "2017-07-06T12:35:37"},
-]));
+assert.commandWorked(coll.insert([{_id: 0, dateString: "2017-07-06T12:35:37"}]));
 
 assert.eq(
-    [
-        {"_id": 0, "date": ISODate("2017-07-06T03:35:37Z")},
-    ],
-    coll.aggregate([
+    [{"_id": 0, "date": ISODate("2017-07-06T03:35:37Z")}],
+    coll
+        .aggregate([
             {
-                $project:
-                    {date: {$dateFromString: {dateString: "$dateString", timezone: "Asia/Tokyo"}}},
+                $project: {date: {$dateFromString: {dateString: "$dateString", timezone: "Asia/Tokyo"}}},
             },
-            {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* dateString from constant with timezone from data */
 
 coll.drop();
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, timezone: "Europe/London"},
         {_id: 1, timezone: "America/New_York"},
         {_id: 2, timezone: "-05:00"},
-]));
+    ]),
+);
 
 assert.eq(
     [
@@ -341,18 +366,19 @@ assert.eq(
         {"_id": 1, "date": ISODate("2017-07-19T22:52:35.199Z")},
         {"_id": 2, "date": ISODate("2017-07-19T23:52:35.199Z")},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $project: {
                     date: {
-                        $dateFromString:
-                            {dateString: "2017-07-19T18:52:35.199", timezone: "$timezone"}
-                    }
+                        $dateFromString: {dateString: "2017-07-19T18:52:35.199", timezone: "$timezone"},
                     },
                 },
-            {$sort: {_id: 1}}
+            },
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* BI format tests. */
@@ -363,37 +389,39 @@ assert.commandWorked(coll.insert({_id: 0}));
 let pipelines = [
     {
         expect: "2017-01-01T00:00:00Z",
-        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-01-01 00:00:00"}}}}
+        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-01-01 00:00:00"}}}},
     },
     {
         expect: "2017-07-01T00:00:00Z",
-        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-01 00:00:00"}}}}
+        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-01 00:00:00"}}}},
     },
     {
         expect: "2017-07-06T00:00:00Z",
-        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-06"}}}}
+        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-06"}}}},
     },
     {
         expect: "2017-07-06T00:00:00Z",
-        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-06 00:00:00"}}}}
+        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-06 00:00:00"}}}},
     },
     {
         expect: "2017-07-06T11:00:00Z",
-        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-06 11:00:00"}}}}
+        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-06 11:00:00"}}}},
     },
     {
         expect: "2017-07-06T11:36:00Z",
-        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-06 11:36:00"}}}}
+        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-06 11:36:00"}}}},
     },
     {
         expect: "2017-07-06T11:36:54Z",
-        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-06 11:36:54"}}}}
+        pipeline: {$project: {date: {$dateFromString: {dateString: "2017-07-06 11:36:54"}}}},
     },
 ];
 pipelines.forEach(function (pipeline) {
-    assert.eq([{_id: 0, date: ISODate(pipeline.expect)}],
+    assert.eq(
+        [{_id: 0, date: ISODate(pipeline.expect)}],
         coll.aggregate(pipeline.pipeline).toArray(),
-              tojson(pipeline));
+        tojson(pipeline),
+    );
 });
 
 /* --------------------------------------------------------------------------------------- */
@@ -427,28 +455,30 @@ testCases = [
 testCases.forEach(function (testCase) {
     assert.eq(
         [{_id: 0, date: ISODate(testCase.expect)}],
-        coll.aggregate({$project: {date: {$dateFromString: {dateString: testCase.inputString}}}})
-            .toArray(),
-        tojson(testCase));
+        coll.aggregate({$project: {date: {$dateFromString: {dateString: testCase.inputString}}}}).toArray(),
+        tojson(testCase),
+    );
     assert.eq(
         [{_id: 0, date: ISODate(testCase.expect)}],
-        coll.aggregate({
+        coll
+            .aggregate({
                 $project: {
                     date: {
-                        $dateFromString:
-                            {dateString: testCase.inputString, format: "%Y-%m-%dT%H:%M:%S.%L%z"}
-                    }
-                }
+                        $dateFromString: {dateString: testCase.inputString, format: "%Y-%m-%dT%H:%M:%S.%L%z"},
+                    },
+                },
             })
             .toArray(),
-        tojson(testCase));
+        tojson(testCase),
+    );
 });
 
 /* --------------------------------------------------------------------------------------- */
 /* BI format tests from data. */
 
 coll.drop();
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, dateString: "2017-01-01 00:00:00"},
         {_id: 1, dateString: "2017-07-01 00:00:00"},
         {_id: 2, dateString: "2017-07-06"},
@@ -456,7 +486,8 @@ assert.commandWorked(coll.insert([
         {_id: 4, dateString: "2017-07-06 11:00:00"},
         {_id: 5, dateString: "2017-07-06 11:36:00"},
         {_id: 6, dateString: "2017-07-06 11:36:54"},
-]));
+    ]),
+);
 
 assert.eq(
     [
@@ -466,21 +497,24 @@ assert.eq(
         {"_id": 3, "date": ISODate("2017-07-06T00:00:00Z")},
         {"_id": 4, "date": ISODate("2017-07-06T11:00:00Z")},
         {"_id": 5, "date": ISODate("2017-07-06T11:36:00Z")},
-        {"_id": 6, "date": ISODate("2017-07-06T11:36:54Z")}
+        {"_id": 6, "date": ISODate("2017-07-06T11:36:54Z")},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $project: {date: {$dateFromString: {dateString: "$dateString"}}},
             },
-            {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* Wacky format tests from data. */
 
 coll.drop();
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, dateString: "July 4th, 2017"},
         {_id: 1, dateString: "July 4th, 2017 12:39:30 BST"},
         {_id: 2, dateString: "July 4th, 2017 11am"},
@@ -490,7 +524,8 @@ assert.commandWorked(coll.insert([
         {_id: 6, dateString: "2017-Jul-04 noon"},
         {_id: 7, dateString: "2017-07-04 12:48:07 GMT+0545"},
         {_id: 8, dateString: "2017-07-04 12:48:07 GMT-0200"},
-]));
+    ]),
+);
 
 assert.eq(
     [
@@ -504,13 +539,15 @@ assert.eq(
         {"_id": 7, "date": ISODate("2017-07-04T07:03:07Z")},
         {"_id": 8, "date": ISODate("2017-07-04T14:48:07Z")},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $project: {date: {$dateFromString: {dateString: "$dateString"}}},
             },
-            {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* Tests formats that aren't supported with the normal $dateFromString parser. */
@@ -527,7 +564,7 @@ testCases = [
     {
         inputString: "Day: 05 Month: 12 Year: 1988",
         format: "Day: %d Month: %m Year: %Y",
-        expect: "1988-12-05T00:00:00Z"
+        expect: "1988-12-05T00:00:00Z",
     },
     {inputString: "Date: 1992/04/26", format: "Date: %Y/%m/%d", expect: "1992-04-26T00:00:00Z"},
     {inputString: "4/26/1992:+0445", format: "%m/%d/%Y:%z", expect: "1992-04-25T19:15:00Z"},
@@ -536,15 +573,17 @@ testCases = [
 testCases.forEach(function (testCase) {
     assert.eq(
         [{_id: 0, date: ISODate(testCase.expect)}],
-        coll.aggregate({
+        coll
+            .aggregate({
                 $project: {
                     date: {
-                        $dateFromString: {dateString: testCase.inputString, format: testCase.format}
-                    }
-                }
+                        $dateFromString: {dateString: testCase.inputString, format: testCase.format},
+                    },
+                },
             })
             .toArray(),
-        tojson(testCase));
+        tojson(testCase),
+    );
 });
 
 /* --------------------------------------------------------------------------------------- */
@@ -561,15 +600,17 @@ testCases = [
 testCases.forEach(function (testCase) {
     assert.eq(
         [{_id: 0, date: ISODate(testCase.expect)}],
-        coll.aggregate({
+        coll
+            .aggregate({
                 $project: {
                     date: {
-                        $dateFromString: {dateString: testCase.inputString, format: testCase.format}
-                    }
-                }
+                        $dateFromString: {dateString: testCase.inputString, format: testCase.format},
+                    },
+                },
             })
             .toArray(),
-        tojson(testCase));
+        tojson(testCase),
+    );
 });
 
 /* --------------------------------------------------------------------------------------- */
@@ -582,15 +623,17 @@ testCases = [
 testCases.forEach(function (testCase) {
     assert.eq(
         [{_id: 0, date: ISODate(testCase.expect)}],
-        coll.aggregate({
+        coll
+            .aggregate({
                 $project: {
                     date: {
-                        $dateFromString: {dateString: testCase.inputString, format: testCase.format}
-                    }
-                }
+                        $dateFromString: {dateString: testCase.inputString, format: testCase.format},
+                    },
+                },
             })
             .toArray(),
-        tojson(testCase));
+        tojson(testCase),
+    );
 });
 
 /* --------------------------------------------------------------------------------------- */
@@ -598,20 +641,20 @@ testCases.forEach(function(testCase) {
 
 coll.drop();
 
-assert.commandWorked(coll.insert([
-    {_id: 0},
-]));
+assert.commandWorked(coll.insert([{_id: 0}]));
 
 pipelines = [
-    [{'$project': {date: {$dateFromString: {dateString: "July 4th"}}}}],
-    [{'$project': {date: {$dateFromString: {dateString: "12:50:53"}}}}],
+    [{"$project": {date: {$dateFromString: {dateString: "July 4th"}}}}],
+    [{"$project": {date: {$dateFromString: {dateString: "12:50:53"}}}}],
 ];
 
 pipelines.forEach(function (pipeline) {
-    assertErrCodeAndErrMsgContains(coll,
+    assertErrCodeAndErrMsgContains(
+        coll,
         pipeline,
         ErrorCodes.ConversionFailure,
-                                   "an incomplete date/time string has been found");
+        "an incomplete date/time string has been found",
+    );
 });
 
 /* --------------------------------------------------------------------------------------- */
@@ -619,76 +662,84 @@ pipelines.forEach(function(pipeline) {
 
 coll.drop();
 
-assert.commandWorked(coll.insert([
-    {_id: 0},
-]));
+assert.commandWorked(coll.insert([{_id: 0}]));
 
 pipelines = [
-    [{'$project': {date: {$dateFromString: {dateString: "2017, 12:50:53"}}}}],
-    [{'$project': {date: {$dateFromString: {dateString: "60.Monday1770/06:59"}}}}],
+    [{"$project": {date: {$dateFromString: {dateString: "2017, 12:50:53"}}}}],
+    [{"$project": {date: {$dateFromString: {dateString: "60.Monday1770/06:59"}}}}],
 ];
 
 pipelines.forEach(function (pipeline) {
-    assertErrCodeAndErrMsgContains(
-        coll, pipeline, ErrorCodes.ConversionFailure, "Error parsing date string");
+    assertErrCodeAndErrMsgContains(coll, pipeline, ErrorCodes.ConversionFailure, "Error parsing date string");
 });
 
 /* --------------------------------------------------------------------------------------- */
 /* NULL returns. */
 
 coll.drop();
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, date: new ISODate("2017-06-19T15:13:25.713Z")},
         {_id: 1, date: new ISODate("2017-06-19T15:13:25.713Z"), tz: null},
         {_id: 2, date: new ISODate("2017-06-19T15:13:25.713Z"), tz: undefined},
-]));
+    ]),
+);
 
 pipelines = [
     [{$project: {date: {$dateFromString: {dateString: "$tz"}}}}, {$sort: {_id: 1}}],
     [
         {
-            $project:
-                {date: {$dateFromString: {dateString: "2017-07-11T17:05:19Z", timezone: "$tz"}}}
+            $project: {date: {$dateFromString: {dateString: "2017-07-11T17:05:19Z", timezone: "$tz"}}},
         },
-        {$sort: {_id: 1}}
+        {$sort: {_id: 1}},
     ],
 ];
 pipelines.forEach(function (pipeline) {
-    assert.eq([{_id: 0, date: null}, {_id: 1, date: null}, {_id: 2, date: null}],
+    assert.eq(
+        [
+            {_id: 0, date: null},
+            {_id: 1, date: null},
+            {_id: 2, date: null},
+        ],
         coll.aggregate(pipeline).toArray(),
-              tojson(pipeline));
+        tojson(pipeline),
+    );
 });
 
 coll.drop();
-assert.commandWorked(coll.insert([
-    {_id: 0},
-    {_id: 1, format: null},
-    {_id: 2, format: undefined},
-]));
+assert.commandWorked(coll.insert([{_id: 0}, {_id: 1, format: null}, {_id: 2, format: undefined}]));
 
-assert(anyEq(
-    [{_id: 0, date: null}, {_id: 1, date: null}, {_id: 2, date: null}],
-    coll.aggregate({
-            $project:
-                {date: {$dateFromString: {dateString: "2017-07-11T17:05:19Z", format: "$format"}}}
+assert(
+    anyEq(
+        [
+            {_id: 0, date: null},
+            {_id: 1, date: null},
+            {_id: 2, date: null},
+        ],
+        coll
+            .aggregate({
+                $project: {date: {$dateFromString: {dateString: "2017-07-11T17:05:19Z", format: "$format"}}},
             })
-        .toArray()));
+            .toArray(),
+    ),
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* Parse errors. */
 
 let pipeline = [{$project: {date: {$dateFromString: "no-object"}}}];
-assertErrCodeAndErrMsgContains(
-    coll, pipeline, 40540, "$dateFromString only supports an object as an argument");
+assertErrCodeAndErrMsgContains(coll, pipeline, 40540, "$dateFromString only supports an object as an argument");
 
 pipeline = [{$project: {date: {$dateFromString: {"unknown": "$tz"}}}}];
 assertErrCodeAndErrMsgContains(coll, pipeline, 40541, "Unrecognized argument");
 
 pipeline = [{$project: {date: {$dateFromString: {dateString: 5}}}}];
-assertErrCodeAndErrMsgContains(coll,
+assertErrCodeAndErrMsgContains(
+    coll,
     pipeline,
     ErrorCodes.ConversionFailure,
-                               "$dateFromString requires that 'dateString' be a string");
+    "$dateFromString requires that 'dateString' be a string",
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* Passing in time zone with date/time string. */
@@ -696,32 +747,30 @@ assertErrCodeAndErrMsgContains(coll,
 pipeline = {
     $project: {
         date: {
-            $dateFromString:
-                {dateString: "2017-07-12T22:23:55 GMT+02:00", timezone: "Europe/Amsterdam"}
-        }
-    }
+            $dateFromString: {dateString: "2017-07-12T22:23:55 GMT+02:00", timezone: "Europe/Amsterdam"},
+        },
+    },
 };
 assertErrorCode(coll, pipeline, ErrorCodes.ConversionFailure);
 
 pipeline = {
     $project: {
-        date: {$dateFromString: {dateString: "2017-07-12T22:23:55Z", timezone: "Europe/Amsterdam"}}
-    }
+        date: {$dateFromString: {dateString: "2017-07-12T22:23:55Z", timezone: "Europe/Amsterdam"}},
+    },
 };
 assertErrorCode(coll, pipeline, ErrorCodes.ConversionFailure);
 
 pipeline = {
     $project: {
         date: {
-            $dateFromString:
-                {dateString: "2017-07-12T22:23:55 America/New_York", timezone: "Europe/Amsterdam"}
-        }
-    }
+            $dateFromString: {dateString: "2017-07-12T22:23:55 America/New_York", timezone: "Europe/Amsterdam"},
+        },
+    },
 };
 assertErrorCode(coll, pipeline, ErrorCodes.ConversionFailure);
 
 pipeline = {
-    $project: {date: {$dateFromString: {dateString: "2017-07-12T22:23:55 Europe/Amsterdam"}}}
+    $project: {date: {$dateFromString: {dateString: "2017-07-12T22:23:55 Europe/Amsterdam"}}},
 };
 assertErrorCode(coll, pipeline, ErrorCodes.ConversionFailure);
 
@@ -737,67 +786,65 @@ assertErrCodeAndErrMsgContains(coll, pipeline, ErrorCodes.ConversionFailure, "Tr
 
 // Test missing specifier prefix '%'.
 pipeline = [{$project: {date: {$dateFromString: {dateString: "1992-26-04", format: "Y-d-m"}}}}];
-assertErrCodeAndErrMsgContains(
-    coll, pipeline, ErrorCodes.ConversionFailure, "Format literal not found");
+assertErrCodeAndErrMsgContains(coll, pipeline, ErrorCodes.ConversionFailure, "Format literal not found");
 
 pipeline = [{$project: {date: {$dateFromString: {dateString: "1992", format: "%n"}}}}];
 assertErrCodeAndErrMsgContains(coll, pipeline, 18536, "Invalid format character");
 
-pipeline = [{
+pipeline = [
+    {
         $project: {
             date: {
-            $dateFromString:
-                {dateString: "4/26/1992:+0445", format: "%m/%d/%Y:%z", timezone: "+0500"}
-        }
-    }
-}];
+                $dateFromString: {dateString: "4/26/1992:+0445", format: "%m/%d/%Y:%z", timezone: "+0500"},
+            },
+        },
+    },
+];
 assertErrCodeAndErrMsgContains(
     coll,
     pipeline,
     ErrorCodes.ConversionFailure,
-    "you cannot pass in a date/time string with GMT offset together with a timezone argument");
+    "you cannot pass in a date/time string with GMT offset together with a timezone argument",
+);
 
 pipeline = [{$project: {date: {$dateFromString: {dateString: "4/26/1992", format: 5}}}}];
-assertErrCodeAndErrMsgContains(
-    coll, pipeline, 40684, "$dateFromString requires that 'format' be a string");
+assertErrCodeAndErrMsgContains(coll, pipeline, 40684, "$dateFromString requires that 'format' be a string");
 
 pipeline = [{$project: {date: {$dateFromString: {dateString: "4/26/1992", format: {}}}}}];
-assertErrCodeAndErrMsgContains(
-    coll, pipeline, 40684, "$dateFromString requires that 'format' be a string");
+assertErrCodeAndErrMsgContains(coll, pipeline, 40684, "$dateFromString requires that 'format' be a string");
 
 pipeline = [{$project: {date: {$dateFromString: {dateString: "ISO Day 6", format: "ISO Day %u"}}}}];
-assertErrCodeAndErrMsgContains(
-    coll, pipeline, ErrorCodes.ConversionFailure, "The parsed date was invalid");
+assertErrCodeAndErrMsgContains(coll, pipeline, ErrorCodes.ConversionFailure, "The parsed date was invalid");
 
-pipeline =
-    [{$project: {date: {$dateFromString: {dateString: "ISO Week 52", format: "ISO Week %V"}}}}];
-assertErrCodeAndErrMsgContains(
-    coll, pipeline, ErrorCodes.ConversionFailure, "The parsed date was invalid");
+pipeline = [{$project: {date: {$dateFromString: {dateString: "ISO Week 52", format: "ISO Week %V"}}}}];
+assertErrCodeAndErrMsgContains(coll, pipeline, ErrorCodes.ConversionFailure, "The parsed date was invalid");
 
-pipeline = [{
-    $project: {date: {$dateFromString: {dateString: "ISO Week 1, 2018", format: "ISO Week %V, %Y"}}}
-}];
-assertErrCodeAndErrMsgContains(coll,
+pipeline = [
+    {
+        $project: {date: {$dateFromString: {dateString: "ISO Week 1, 2018", format: "ISO Week %V, %Y"}}},
+    },
+];
+assertErrCodeAndErrMsgContains(
+    coll,
     pipeline,
     ErrorCodes.ConversionFailure,
-                               "Mixing of ISO dates with natural dates is not allowed");
+    "Mixing of ISO dates with natural dates is not allowed",
+);
 
 pipeline = [{$project: {date: {$dateFromString: {dateString: "12/31/2018", format: "%m/%d/%G"}}}}];
-assertErrCodeAndErrMsgContains(coll,
+assertErrCodeAndErrMsgContains(
+    coll,
     pipeline,
     ErrorCodes.ConversionFailure,
-                               "Mixing of ISO dates with natural dates is not allowed");
+    "Mixing of ISO dates with natural dates is not allowed",
+);
 
-pipeline =
-    [{$project: {date: {$dateFromString: {dateString: "Dece 31 2018", format: "%b %d %Y"}}}}];
-assertErrCodeAndErrMsgContains(
-    coll, pipeline, ErrorCodes.ConversionFailure, "Error parsing date string");
+pipeline = [{$project: {date: {$dateFromString: {dateString: "Dece 31 2018", format: "%b %d %Y"}}}}];
+assertErrCodeAndErrMsgContains(coll, pipeline, ErrorCodes.ConversionFailure, "Error parsing date string");
 
 // Test embedded null bytes in the 'dateString' and 'format' fields.
-pipeline =
-    [{$project: {date: {$dateFromString: {dateString: "12/31\0/2018", format: "%m/%d/%Y"}}}}];
+pipeline = [{$project: {date: {$dateFromString: {dateString: "12/31\0/2018", format: "%m/%d/%Y"}}}}];
 assertErrCodeAndErrMsgContains(coll, pipeline, ErrorCodes.ConversionFailure, "Not enough data");
 
-pipeline =
-    [{$project: {date: {$dateFromString: {dateString: "12/31/2018", format: "%m/%d\0/%Y"}}}}];
+pipeline = [{$project: {date: {$dateFromString: {dateString: "12/31/2018", format: "%m/%d\0/%Y"}}}}];
 assertErrCodeAndErrMsgContains(coll, pipeline, ErrorCodes.ConversionFailure, "Trailing data");

jstests/aggregation/expressions/date_from_string_on_error.js

@@ -12,165 +12,181 @@ coll.drop();
 assert.commandWorked(coll.insert({_id: 0}));
 
 // Test that the 'onError' value is returned when 'dateString' is not a valid date/time.
-for (let inputDate of ["July 4th",
-                       "12:50:53",
-                       "2017",
-                       "60.Monday1770/06:59",
-                       "Not even close",
-                       "July 4th, 10000"]) {
+for (let inputDate of ["July 4th", "12:50:53", "2017", "60.Monday1770/06:59", "Not even close", "July 4th, 10000"]) {
     assert.eq(
         [{_id: 0, date: onErrorValue}],
-        coll.aggregate({
-                $project: {date: {$dateFromString: {dateString: inputDate, onError: onErrorValue}}}
+        coll
+            .aggregate({
+                $project: {date: {$dateFromString: {dateString: inputDate, onError: onErrorValue}}},
             })
-            .toArray());
+            .toArray(),
+    );
 }
 
 // Test that the 'onError' value is returned when 'dateString' is not a string.
 for (let inputDate of [5, {year: 2018, month: 2, day: 5}, ["2018-02-05"]]) {
     assert.eq(
         [{_id: 0, date: onErrorValue}],
-        coll.aggregate({
-                $project: {date: {$dateFromString: {dateString: inputDate, onError: onErrorValue}}}
+        coll
+            .aggregate({
+                $project: {date: {$dateFromString: {dateString: inputDate, onError: onErrorValue}}},
             })
-            .toArray());
+            .toArray(),
+    );
 }
 
 // Test that the 'onError' value is ignored when 'dateString' is nullish.
 for (let inputDate of [null, undefined, "$missing"]) {
     assert.eq(
         [{_id: 0, date: null}],
-        coll.aggregate({
-                $project: {date: {$dateFromString: {dateString: inputDate, onError: onErrorValue}}}
+        coll
+            .aggregate({
+                $project: {date: {$dateFromString: {dateString: inputDate, onError: onErrorValue}}},
             })
-            .toArray());
+            .toArray(),
+    );
 }
 
 // Test that the 'onError' value is returned for unmatched format strings.
 for (let inputFormat of ["%Y", "%Y-%m-%dT%H", "Y-m-d"]) {
     assert.eq(
         [{_id: 0, date: onErrorValue}],
-        coll.aggregate({
+        coll
+            .aggregate({
                 $project: {
                     date: {
-                        $dateFromString:
-                            {dateString: "2018-02-06", format: inputFormat, onError: onErrorValue}
-                    }
-                }
+                        $dateFromString: {dateString: "2018-02-06", format: inputFormat, onError: onErrorValue},
+                    },
+                },
             })
-            .toArray());
+            .toArray(),
+    );
 }
 
 // Test that null is returned when the 'timezone' or 'format' is nullish, regardless of the
 // 'onError' value.
 for (let nullishValue of [null, undefined, "$missing"]) {
-    assert.eq([{_id: 0, date: null}],
-              coll.aggregate({
+    assert.eq(
+        [{_id: 0, date: null}],
+        coll
+            .aggregate({
                 $project: {
                     date: {
                         $dateFromString: {
                             dateString: "2018-02-06T11:56:02Z",
                             format: nullishValue,
-                                  onError: onErrorValue
-                              }
-                          }
-                      }
+                            onError: onErrorValue,
+                        },
+                    },
+                },
             })
-                  .toArray());
-    assert.eq([{_id: 0, date: null}],
-              coll.aggregate({
+            .toArray(),
+    );
+    assert.eq(
+        [{_id: 0, date: null}],
+        coll
+            .aggregate({
                 $project: {
                     date: {
                         $dateFromString: {
                             dateString: "2018-02-06T11:56:02Z",
                             timezone: nullishValue,
-                                  onError: onErrorValue
-                              }
-                          }
-                      }
+                            onError: onErrorValue,
+                        },
+                    },
+                },
             })
-                  .toArray());
+            .toArray(),
+    );
 }
 
 // Test that onError is returned when the input is not a string and other parameters are
 // nullish.
 assert.eq(
     [{_id: 0, date: onErrorValue}],
-    coll.aggregate({
-            $project:
-                {date: {$dateFromString: {dateString: 5, format: null, onError: onErrorValue}}}
+    coll
+        .aggregate({
+            $project: {date: {$dateFromString: {dateString: 5, format: null, onError: onErrorValue}}},
         })
-        .toArray());
+        .toArray(),
+);
 assert.eq(
     [{_id: 0, date: onErrorValue}],
-    coll.aggregate({
+    coll
+        .aggregate({
             $project: {
-                date:
-                    {$dateFromString: {dateString: 5, timezone: "$missing", onError: onErrorValue}}
-            }
+                date: {$dateFromString: {dateString: 5, timezone: "$missing", onError: onErrorValue}},
+            },
         })
-        .toArray());
+        .toArray(),
+);
 
 // Test that onError is ignored when the input is an invalid string and other parameters are
 // nullish.
 assert.eq(
     [{_id: 0, date: null}],
-    coll.aggregate({
+    coll
+        .aggregate({
             $project: {
                 date: {
-                    $dateFromString:
-                        {dateString: "Invalid date string", format: null, onError: onErrorValue}
-                }
-            }
+                    $dateFromString: {dateString: "Invalid date string", format: null, onError: onErrorValue},
+                },
+            },
         })
-        .toArray());
-assert.eq([{_id: 0, date: null}],
-          coll.aggregate({
+        .toArray(),
+);
+assert.eq(
+    [{_id: 0, date: null}],
+    coll
+        .aggregate({
             $project: {
                 date: {
                     $dateFromString: {
                         dateString: "Invalid date string",
                         timezone: "$missing",
-                              onError: onErrorValue
-                          }
-                      }
-                  }
+                        onError: onErrorValue,
+                    },
+                },
+            },
         })
-              .toArray());
+        .toArray(),
+);
 
 // Test that 'onError' can be any type, not just an ISODate.
 for (let onError of [{}, 5, "Not a date", null, undefined]) {
     assert.eq(
         [{_id: 0, date: onError}],
-        coll.aggregate(
-                {$project: {date: {$dateFromString: {dateString: "invalid", onError: onError}}}})
-            .toArray());
+        coll.aggregate({$project: {date: {$dateFromString: {dateString: "invalid", onError: onError}}}}).toArray(),
+    );
 }
 
 // Test that a missing 'onError' value results in no output field when used within a $project
 // stage.
 assert.eq(
     [{_id: 0}],
-    coll.aggregate(
-            {$project: {date: {$dateFromString: {dateString: "invalid", onError: "$missing"}}}})
-        .toArray());
+    coll.aggregate({$project: {date: {$dateFromString: {dateString: "invalid", onError: "$missing"}}}}).toArray(),
+);
 
 // Test that 'onError' is ignored when the 'format' is invalid.
 let res = coll.runCommand("aggregate", {
-    pipeline: [{
-        $project:
-            {date: {$dateFromString: {dateString: "4/26/1992", format: 5, onError: onErrorValue}}}
-    }],
-    cursor: {}
+    pipeline: [
+        {
+            $project: {date: {$dateFromString: {dateString: "4/26/1992", format: 5, onError: onErrorValue}}},
+        },
+    ],
+    cursor: {},
 });
 assert.commandFailedWithCode(res, 40684);
 
 assertErrCodeAndErrMsgContains(
     coll,
-    [{
+    [
+        {
             $project: {
-            date: {$dateFromString: {dateString: "4/26/1992", format: "%n", onError: onErrorValue}}
-        }
-    }],
+                date: {$dateFromString: {dateString: "4/26/1992", format: "%n", onError: onErrorValue}},
+            },
+        },
+    ],
     18536,
-    "Invalid format character '%n' in format string");
+    "Invalid format character '%n' in format string",
+);

jstests/aggregation/expressions/date_from_string_on_null.js

@@ -11,52 +11,55 @@ assert.commandWorked(coll.insert({_id: 0}));
 for (let inputDate of [null, undefined, "$missing"]) {
     assert.eq(
         [{_id: 0, date: onNullValue}],
-        coll.aggregate(
-                {$project: {date: {$dateFromString: {dateString: inputDate, onNull: onNullValue}}}})
-            .toArray());
+        coll.aggregate({$project: {date: {$dateFromString: {dateString: inputDate, onNull: onNullValue}}}}).toArray(),
+    );
 }
 
 // Test that null is returned when the 'timezone' or 'format' is nullish, regardless of the
 // 'onNull' value.
 for (let nullishValue of [null, undefined, "$missing"]) {
-    assert.eq([{_id: 0, date: null}],
-              coll.aggregate({
+    assert.eq(
+        [{_id: 0, date: null}],
+        coll
+            .aggregate({
                 $project: {
                     date: {
                         $dateFromString: {
                             dateString: "2018-02-06T11:56:02Z",
                             format: nullishValue,
-                                  onNull: onNullValue
-                              }
-                          }
-                      }
+                            onNull: onNullValue,
+                        },
+                    },
+                },
             })
-                  .toArray());
-    assert.eq([{_id: 0, date: null}],
-              coll.aggregate({
+            .toArray(),
+    );
+    assert.eq(
+        [{_id: 0, date: null}],
+        coll
+            .aggregate({
                 $project: {
                     date: {
                         $dateFromString: {
                             dateString: "2018-02-06T11:56:02Z",
                             timezone: nullishValue,
-                                  onNull: onNullValue
-                              }
-                          }
-                      }
+                            onNull: onNullValue,
+                        },
+                    },
+                },
             })
-                  .toArray());
+            .toArray(),
+    );
 }
 
 // Test that 'onNull' can be any type, not just an ISODate.
 for (let onNull of [{}, 5, "Not a date", null, undefined]) {
     assert.eq(
         [{_id: 0, date: onNull}],
-        coll.aggregate(
-                {$project: {date: {$dateFromString: {dateString: "$missing", onNull: onNull}}}})
-            .toArray());
+        coll.aggregate({$project: {date: {$dateFromString: {dateString: "$missing", onNull: onNull}}}}).toArray(),
+    );
 }
 assert.eq(
     [{_id: 0}],
-    coll.aggregate(
-            {$project: {date: {$dateFromString: {dateString: "$missing", onNull: "$missing"}}}})
-        .toArray());
+    coll.aggregate({$project: {date: {$dateFromString: {dateString: "$missing", onNull: "$missing"}}}}).toArray(),
+);

jstests/aggregation/expressions/date_to_parts.js

@@ -6,99 +6,89 @@ const coll = db.dateToParts;
 coll.drop();
 
 /* --------------------------------------------------------------------------------------- */
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, date: new ISODate("2017-06-19T15:13:25.713Z"), tz: "UTC"},
         {_id: 1, date: new ISODate("2017-06-19T15:13:25.713Z"), tz: "Europe/London"},
         {_id: 2, date: new ISODate("2017-06-19T15:13:25.713Z"), tz: "America/New_York", iso: true},
         {_id: 3, date: new ISODate("2017-06-19T15:13:25.713Z"), tz: "America/New_York", iso: false},
-]));
+    ]),
+);
 
 assert.eq(
     [
         {
             _id: 0,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713},
         },
         {
             _id: 1,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713},
         },
         {
             _id: 2,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713},
         },
         {
             _id: 3,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713},
         },
     ],
-    coll.aggregate([{$project: {date: {'$dateToParts': {date: "$date"}}}}, {$sort: {_id: 1}}])
-        .toArray());
+    coll.aggregate([{$project: {date: {"$dateToParts": {date: "$date"}}}}, {$sort: {_id: 1}}]).toArray(),
+);
 
 assert.eq(
     [
         {
             _id: 0,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713},
         },
         {
             _id: 1,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 16, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 16, minute: 13, second: 25, millisecond: 713},
         },
         {
             _id: 2,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 11, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 11, minute: 13, second: 25, millisecond: 713},
         },
         {
             _id: 3,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 11, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 11, minute: 13, second: 25, millisecond: 713},
         },
     ],
-    coll.aggregate([
-            {$project: {date: {'$dateToParts': {date: "$date", "timezone": "$tz"}}}},
-            {$sort: {_id: 1}}
+    coll
+        .aggregate([{$project: {date: {"$dateToParts": {date: "$date", "timezone": "$tz"}}}}, {$sort: {_id: 1}}])
+        .toArray(),
+);
+
+assert.eq(
+    [
+        {
+            _id: 0,
+            date: {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713},
+        },
+        {
+            _id: 1,
+            date: {year: 2017, month: 6, day: 19, hour: 16, minute: 13, second: 25, millisecond: 713},
+        },
+        {
+            _id: 2,
+            date: {year: 2017, month: 6, day: 19, hour: 11, minute: 13, second: 25, millisecond: 713},
+        },
+        {
+            _id: 3,
+            date: {year: 2017, month: 6, day: 19, hour: 11, minute: 13, second: 25, millisecond: 713},
+        },
+    ],
+    coll
+        .aggregate([
+            {
+                $project: {date: {"$dateToParts": {date: "$date", "timezone": "$tz", "iso8601": false}}},
+            },
+            {$sort: {_id: 1}},
         ])
-        .toArray());
-
-assert.eq(
-    [
-        {
-            _id: 0,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713}
-        },
-        {
-            _id: 1,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 16, minute: 13, second: 25, millisecond: 713}
-        },
-        {
-            _id: 2,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 11, minute: 13, second: 25, millisecond: 713}
-        },
-        {
-            _id: 3,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 11, minute: 13, second: 25, millisecond: 713}
-        },
-    ],
-    coll.aggregate([
-            {
-                $project:
-                    {date: {'$dateToParts': {date: "$date", "timezone": "$tz", "iso8601": false}}}
-            },
-            {$sort: {_id: 1}}
-        ])
-        .toArray());
+        .toArray(),
+);
 
 assert.eq(
     [
@@ -111,8 +101,8 @@ assert.eq(
                 hour: 15,
                 minute: 13,
                 second: 25,
-                millisecond: 713
-            }
+                millisecond: 713,
+            },
         },
         {
             _id: 1,
@@ -123,8 +113,8 @@ assert.eq(
                 hour: 16,
                 minute: 13,
                 second: 25,
-                millisecond: 713
-            }
+                millisecond: 713,
+            },
         },
         {
             _id: 2,
@@ -135,8 +125,8 @@ assert.eq(
                 hour: 11,
                 minute: 13,
                 second: 25,
-                millisecond: 713
-            }
+                millisecond: 713,
+            },
         },
         {
             _id: 3,
@@ -147,18 +137,19 @@ assert.eq(
                 hour: 11,
                 minute: 13,
                 second: 25,
-                millisecond: 713
-            }
+                millisecond: 713,
+            },
         },
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
-                $project:
-                    {date: {'$dateToParts': {date: "$date", "timezone": "$tz", "iso8601": true}}}
+                $project: {date: {"$dateToParts": {date: "$date", "timezone": "$tz", "iso8601": true}}},
             },
-            {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 assert.eq(
     [
@@ -171,70 +162,74 @@ assert.eq(
                 hour: 11,
                 minute: 13,
                 second: 25,
-                millisecond: 713
-            }
+                millisecond: 713,
+            },
         },
         {
             _id: 3,
-            date:
-                {year: 2017, month: 6, day: 19, hour: 11, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 11, minute: 13, second: 25, millisecond: 713},
         },
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {$match: {iso: {$exists: true}}},
             {
-                $project:
-                    {date: {'$dateToParts': {date: "$date", "timezone": "$tz", "iso8601": "$iso"}}}
+                $project: {date: {"$dateToParts": {date: "$date", "timezone": "$tz", "iso8601": "$iso"}}},
             },
-            {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* Tests with timestamp */
 assert(coll.drop());
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {
             _id: ObjectId("58c7cba47bbadf523cf2c313"),
             date: new ISODate("2017-06-19T15:13:25.713Z"),
-        tz: "Europe/London"
+            tz: "Europe/London",
         },
-]));
+    ]),
+);
 
 assert.eq(
     [
         {
             _id: ObjectId("58c7cba47bbadf523cf2c313"),
-            date:
-                {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 15, minute: 13, second: 25, millisecond: 713},
         },
     ],
-    coll.aggregate([{$project: {date: {'$dateToParts': {date: "$date"}}}}]).toArray());
+    coll.aggregate([{$project: {date: {"$dateToParts": {date: "$date"}}}}]).toArray(),
+);
 
 assert.eq(
     [
         {
             _id: ObjectId("58c7cba47bbadf523cf2c313"),
-            date:
-                {year: 2017, month: 6, day: 19, hour: 16, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 16, minute: 13, second: 25, millisecond: 713},
         },
     ],
-    coll.aggregate([{$project: {date: {'$dateToParts': {date: "$date", "timezone": "$tz"}}}}])
-        .toArray());
+    coll.aggregate([{$project: {date: {"$dateToParts": {date: "$date", "timezone": "$tz"}}}}]).toArray(),
+);
 
 assert.eq(
     [
         {
             _id: ObjectId("58c7cba47bbadf523cf2c313"),
-            date:
-                {year: 2017, month: 6, day: 19, hour: 16, minute: 13, second: 25, millisecond: 713}
+            date: {year: 2017, month: 6, day: 19, hour: 16, minute: 13, second: 25, millisecond: 713},
         },
     ],
-    coll.aggregate([{
-            $project: {date: {'$dateToParts': {date: "$date", "timezone": "$tz", "iso8601": false}}}
-        }])
-        .toArray());
+    coll
+        .aggregate([
+            {
+                $project: {date: {"$dateToParts": {date: "$date", "timezone": "$tz", "iso8601": false}}},
+            },
+        ])
+        .toArray(),
+);
 
 assert.eq(
     [
@@ -247,99 +242,92 @@ assert.eq(
                 hour: 16,
                 minute: 13,
                 second: 25,
-                millisecond: 713
-            }
+                millisecond: 713,
+            },
         },
     ],
-    coll.aggregate([{
-            $project: {date: {'$dateToParts': {date: "$date", "timezone": "$tz", "iso8601": true}}}
-        }])
-        .toArray());
+    coll
+        .aggregate([
+            {
+                $project: {date: {"$dateToParts": {date: "$date", "timezone": "$tz", "iso8601": true}}},
+            },
+        ])
+        .toArray(),
+);
 
 assert.eq(
     [
         {
             _id: ObjectId("58c7cba47bbadf523cf2c313"),
-            date: {year: 2017, month: 3, day: 14, hour: 10, minute: 53, second: 24, millisecond: 0}
+            date: {year: 2017, month: 3, day: 14, hour: 10, minute: 53, second: 24, millisecond: 0},
         },
     ],
-    coll.aggregate([{
-            $project: {date: {'$dateToParts': {date: "$_id", "timezone": "$tz", "iso8601": false}}}
-        }])
-        .toArray());
+    coll
+        .aggregate([
+            {
+                $project: {date: {"$dateToParts": {date: "$_id", "timezone": "$tz", "iso8601": false}}},
+            },
+        ])
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 assert(coll.drop());
 
-assert.commandWorked(coll.insert([
-    {_id: 0, date: ISODate("2017-06-27T12:00:20Z")},
-]));
+assert.commandWorked(coll.insert([{_id: 0, date: ISODate("2017-06-27T12:00:20Z")}]));
 
 assert.eq(
-    [
-        {_id: 0, date: null},
-    ],
-    coll.aggregate([{$project: {date: {'$dateToParts': {date: "$date", timezone: "$tz"}}}}])
-        .toArray());
+    [{_id: 0, date: null}],
+    coll.aggregate([{$project: {date: {"$dateToParts": {date: "$date", timezone: "$tz"}}}}]).toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 assert(coll.drop());
 
-assert.commandWorked(coll.insert([
-    {_id: 0, date: ISODate("2017-06-27T12:00:20Z")},
-]));
+assert.commandWorked(coll.insert([{_id: 0, date: ISODate("2017-06-27T12:00:20Z")}]));
 
 assert.eq(
-    [
-        {_id: 0, date: null},
-    ],
-    coll.aggregate([{$project: {date: {'$dateToParts': {date: "$date", iso8601: "$iso8601"}}}}])
-        .toArray());
+    [{_id: 0, date: null}],
+    coll.aggregate([{$project: {date: {"$dateToParts": {date: "$date", iso8601: "$iso8601"}}}}]).toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 assert(coll.drop());
 
-assert.commandWorked(coll.insert([
-    {_id: 0, tz: "Europe/London"},
-]));
+assert.commandWorked(coll.insert([{_id: 0, tz: "Europe/London"}]));
 
-assert.eq(
-    [
-        {_id: 0, date: null},
-    ],
-    coll.aggregate([{$project: {date: {'$dateToParts': {date: "$date"}}}}]).toArray());
+assert.eq([{_id: 0, date: null}], coll.aggregate([{$project: {date: {"$dateToParts": {date: "$date"}}}}]).toArray());
 
 /* --------------------------------------------------------------------------------------- */
 
-let pipeline = {$project: {date: {'$dateToParts': {"timezone": "$tz"}}}};
+let pipeline = {$project: {date: {"$dateToParts": {"timezone": "$tz"}}}};
 assertErrorCode(coll, pipeline, 40522);
 
 pipeline = {
-    $project: {date: {'$dateToParts': {date: "$date", "timezone": "$tz", "iso8601": 5}}}
+    $project: {date: {"$dateToParts": {date: "$date", "timezone": "$tz", "iso8601": 5}}},
 };
 assertErrorCode(coll, pipeline, 40521);
 
 pipeline = {
-    $project: {date: {'$dateToParts': {date: 42}}}
+    $project: {date: {"$dateToParts": {date: 42}}},
 };
 assertErrorCode(coll, pipeline, 16006);
 
 pipeline = {
-    $project: {date: {'$dateToParts': {date: "$date", "timezone": 5}}}
+    $project: {date: {"$dateToParts": {date: "$date", "timezone": 5}}},
 };
 assertErrorCode(coll, pipeline, 40517);
 
 pipeline = {
-    $project: {date: {'$dateToParts': {date: "$date", "timezone": "DoesNot/Exist"}}}
+    $project: {date: {"$dateToParts": {date: "$date", "timezone": "DoesNot/Exist"}}},
 };
 assertErrorCode(coll, pipeline, 40485);
 
 // Given a date, executes an aggregation command which requires the server to convert this date to
 // its parts in a timezone-aware fashion. Returns the resulting document containing the date parts.
 function runDateToPartsExpression(inputDate, timezone) {
-    const results =
-        coll.aggregate(
-                [{$project: {_id: 0, out: {$dateToParts: {date: inputDate, timezone: timezone}}}}])
+    const results = coll
+        .aggregate([{$project: {_id: 0, out: {$dateToParts: {date: inputDate, timezone: timezone}}}}])
         .toArray();
     assert.eq(results.length, 1, results);
     return results[0].out;
@@ -350,19 +338,35 @@ function runDateToPartsExpression(inputDate, timezone) {
 // UTC-3 to UTC-2, typically starting in October or November and ending in February. Here we test
 // that dates in December and January use UTC-2 in 2017 and 2018, but use UTC-3 in 2019 and 2020 for
 // the Sao Paulo timezone.
-assert.eq({year: 2017, month: 12, day: 15, hour: 8, minute: 0, second: 0, millisecond: 0},
-          runDateToPartsExpression(ISODate("2017-12-15T10:00:00.000Z"), "America/Sao_Paulo"));
-assert.eq({year: 2018, month: 1, day: 15, hour: 8, minute: 0, second: 0, millisecond: 0},
-          runDateToPartsExpression(ISODate("2018-01-15T10:00:00.000Z"), "America/Sao_Paulo"));
-assert.eq({year: 2018, month: 12, day: 15, hour: 8, minute: 0, second: 0, millisecond: 0},
-          runDateToPartsExpression(ISODate("2018-12-15T10:00:00.000Z"), "America/Sao_Paulo"));
-assert.eq({year: 2019, month: 1, day: 15, hour: 8, minute: 0, second: 0, millisecond: 0},
-          runDateToPartsExpression(ISODate("2019-01-15T10:00:00.000Z"), "America/Sao_Paulo"));
-assert.eq({year: 2019, month: 12, day: 15, hour: 7, minute: 0, second: 0, millisecond: 0},
-          runDateToPartsExpression(ISODate("2019-12-15T10:00:00.000Z"), "America/Sao_Paulo"));
-assert.eq({year: 2020, month: 1, day: 15, hour: 7, minute: 0, second: 0, millisecond: 0},
-          runDateToPartsExpression(ISODate("2020-01-15T10:00:00.000Z"), "America/Sao_Paulo"));
-assert.eq({year: 2020, month: 12, day: 15, hour: 7, minute: 0, second: 0, millisecond: 0},
-          runDateToPartsExpression(ISODate("2020-12-15T10:00:00.000Z"), "America/Sao_Paulo"));
-assert.eq({year: 2021, month: 1, day: 15, hour: 7, minute: 0, second: 0, millisecond: 0},
-          runDateToPartsExpression(ISODate("2021-01-15T10:00:00.000Z"), "America/Sao_Paulo"));
+assert.eq(
+    {year: 2017, month: 12, day: 15, hour: 8, minute: 0, second: 0, millisecond: 0},
+    runDateToPartsExpression(ISODate("2017-12-15T10:00:00.000Z"), "America/Sao_Paulo"),
+);
+assert.eq(
+    {year: 2018, month: 1, day: 15, hour: 8, minute: 0, second: 0, millisecond: 0},
+    runDateToPartsExpression(ISODate("2018-01-15T10:00:00.000Z"), "America/Sao_Paulo"),
+);
+assert.eq(
+    {year: 2018, month: 12, day: 15, hour: 8, minute: 0, second: 0, millisecond: 0},
+    runDateToPartsExpression(ISODate("2018-12-15T10:00:00.000Z"), "America/Sao_Paulo"),
+);
+assert.eq(
+    {year: 2019, month: 1, day: 15, hour: 8, minute: 0, second: 0, millisecond: 0},
+    runDateToPartsExpression(ISODate("2019-01-15T10:00:00.000Z"), "America/Sao_Paulo"),
+);
+assert.eq(
+    {year: 2019, month: 12, day: 15, hour: 7, minute: 0, second: 0, millisecond: 0},
+    runDateToPartsExpression(ISODate("2019-12-15T10:00:00.000Z"), "America/Sao_Paulo"),
+);
+assert.eq(
+    {year: 2020, month: 1, day: 15, hour: 7, minute: 0, second: 0, millisecond: 0},
+    runDateToPartsExpression(ISODate("2020-01-15T10:00:00.000Z"), "America/Sao_Paulo"),
+);
+assert.eq(
+    {year: 2020, month: 12, day: 15, hour: 7, minute: 0, second: 0, millisecond: 0},
+    runDateToPartsExpression(ISODate("2020-12-15T10:00:00.000Z"), "America/Sao_Paulo"),
+);
+assert.eq(
+    {year: 2021, month: 1, day: 15, hour: 7, minute: 0, second: 0, millisecond: 0},
+    runDateToPartsExpression(ISODate("2021-01-15T10:00:00.000Z"), "America/Sao_Paulo"),
+);

jstests/aggregation/expressions/date_to_string.js

@@ -7,7 +7,8 @@ coll.drop();
 
 /* --------------------------------------------------------------------------------------- */
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, date: new ISODate("2017-07-04T14:56:42.911Z"), tz: "UTC"},
         {_id: 1, date: new ISODate("2017-07-04T14:56:42.911Z"), tz: "Europe/London"},
         {_id: 2, date: new ISODate("2017-07-04T14:56:42.911Z"), tz: "America/New_York"},
@@ -15,7 +16,8 @@ assert.commandWorked(coll.insert([
         {_id: 4, date: new ISODate("2017-07-04T14:56:42.911Z"), tz: "Asia/Kathmandu"},
         {_id: 5, date: new ISODate("1935-07-10T11:36:37.133Z"), tz: "Europe/Amsterdam"},
         {_id: 6, date: new ISODate("1900-07-10T11:41:22.418Z"), tz: "America/Caracas"},
-]));
+    ]),
+);
 
 assert.eq(
     [
@@ -27,30 +29,34 @@ assert.eq(
         {_id: 5, date: "1935-07-10 12:56:09 +0119 (79 minutes)"},
         {_id: 6, date: "1900-07-10 07:13:42 -0427 (-267 minutes)"},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $project: {
                     date: {
                         $dateToString: {
                             format: "%Y-%m-%d %H:%M:%S %z (%Z minutes)",
                             date: "$date",
-                            timezone: "$tz"
-                        }
-                    }
-                }
+                            timezone: "$tz",
                         },
-            {$sort: {_id: 1}}
+                    },
+                },
+            },
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 coll.drop();
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, date: new ISODate("2017-01-04T15:08:51.911Z")},
         {_id: 1, date: new ISODate("2017-07-04T15:09:12.911Z")},
         {_id: 2, date: new ISODate("2017-12-04T15:09:14.911Z")},
-]));
+    ]),
+);
 
 assert.eq(
     [
@@ -58,30 +64,34 @@ assert.eq(
         {_id: 1, date: "2017-07-04 11:09:12 -0400 (-240 minutes)"},
         {_id: 2, date: "2017-12-04 10:09:14 -0500 (-300 minutes)"},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $project: {
                     date: {
                         $dateToString: {
                             format: "%Y-%m-%d %H:%M:%S %z (%Z minutes)",
                             date: "$date",
-                            timezone: "America/New_York"
-                        }
-                    }
-                }
+                            timezone: "America/New_York",
                         },
-            {$sort: {_id: 1}}
+                    },
+                },
+            },
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 coll.drop();
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, date: new ISODate("2017-01-04T15:08:51.911Z")},
         {_id: 1, date: new ISODate("2017-07-04T15:09:12.911Z")},
         {_id: 2, date: new ISODate("2017-12-04T15:09:14.911Z")},
-]));
+    ]),
+);
 
 assert.eq(
     [
@@ -89,26 +99,30 @@ assert.eq(
         {_id: 1, date: "2017-07-04 15:09:12 +0000 (0 minutes)"},
         {_id: 2, date: "2017-12-04 15:09:14 +0000 (0 minutes)"},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $project: {
                     date: {
-                        $dateToString: {format: "%Y-%m-%d %H:%M:%S %z (%Z minutes)", date: "$date"}
-                    }
-                }
+                        $dateToString: {format: "%Y-%m-%d %H:%M:%S %z (%Z minutes)", date: "$date"},
                     },
-            {$sort: {_id: 1}}
+                },
+            },
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 coll.drop();
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, date: new ISODate("2017-01-01T15:08:51.911Z")},
         {_id: 1, date: new ISODate("2017-07-04T15:09:12.911Z")},
         {_id: 2, date: new ISODate("2017-12-04T15:09:14.911Z")},
-]));
+    ]),
+);
 
 assert.eq(
     [
@@ -116,26 +130,30 @@ assert.eq(
         {_id: 1, date: "Natural: 2017-W3-27, ISO: 2017-W2-27"},
         {_id: 2, date: "Natural: 2017-W2-49, ISO: 2017-W1-49"},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $project: {
                     date: {
-                        $dateToString: {format: "Natural: %Y-W%w-%U, ISO: %G-W%u-%V", date: "$date"}
-                    }
-                }
+                        $dateToString: {format: "Natural: %Y-W%w-%U, ISO: %G-W%u-%V", date: "$date"},
                     },
-            {$sort: {_id: 1}}
+                },
+            },
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 coll.drop();
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, date: new ISODate("2017-01-01T15:08:51.911Z")},
         {_id: 1, date: new ISODate("2017-07-04T15:09:12.911Z")},
         {_id: 2, date: new ISODate("2017-12-04T15:09:14.911Z")},
-]));
+    ]),
+);
 
 assert.eq(
     [
@@ -143,23 +161,24 @@ assert.eq(
         {_id: 1, date: "Jul (July) 04, 2017"},
         {_id: 2, date: "Dec (December) 04, 2017"},
     ],
-    coll.aggregate([
-            {$project: {date: {$dateToString: {format: "%b (%B) %d, %Y", date: "$date"}}}},
-            {$sort: {_id: 1}}
-        ])
-        .toArray());
+    coll
+        .aggregate([{$project: {date: {$dateToString: {format: "%b (%B) %d, %Y", date: "$date"}}}}, {$sort: {_id: 1}}])
+        .toArray(),
+);
 /* --------------------------------------------------------------------------------------- */
 /* Test that missing expressions, turn into BSON null values */
 coll.drop();
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, date: new ISODate("2017-01-04T15:08:51.911Z")},
         {_id: 1, date: new ISODate("2017-01-04T15:08:51.911Z"), timezone: null},
         {_id: 2, date: new ISODate("2017-01-04T15:08:51.911Z"), timezone: undefined},
         {_id: 3, timezone: "Europe/Oslo"},
         {_id: 4, date: null, timezone: "Europe/Oslo"},
         {_id: 5, date: undefined, timezone: "Europe/Oslo"},
-]));
+    ]),
+);
 
 assert.eq(
     [
@@ -170,21 +189,23 @@ assert.eq(
         {_id: 4, date: null},
         {_id: 5, date: null},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {
                 $project: {
                     date: {
                         $dateToString: {
                             format: "%Y-%m-%d %H:%M:%S %z (%Z minutes)",
                             date: "$date",
-                            timezone: "$timezone"
-                        }
-                    }
-                }
+                            timezone: "$timezone",
                         },
-            {$sort: {_id: 1}}
+                    },
+                },
+            },
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* Test that the default format is
@@ -194,11 +215,13 @@ assert.eq(
  */
 coll.drop();
 
-assert.commandWorked(coll.insert([
+assert.commandWorked(
+    coll.insert([
         {_id: 0, date: new ISODate("2017-01-04T15:08:51.911Z")},
         {_id: 1, date: new ISODate("2017-07-04T15:09:12.911Z")},
         {_id: 2, date: new ISODate("2017-12-04T15:09:14.911Z")},
-]));
+    ]),
+);
 
 // No timezone specified. Defaults to UTC time, and the format includes the 'Z' (UTC) suffix.
 assert.eq(
@@ -207,8 +230,8 @@ assert.eq(
         {_id: 1, date: "2017-07-04T15:09:12.911Z"},
         {_id: 2, date: "2017-12-04T15:09:14.911Z"},
     ],
-    coll.aggregate([{$project: {date: {$dateToString: {date: "$date"}}}}, {$sort: {_id: 1}}])
-        .toArray());
+    coll.aggregate([{$project: {date: {$dateToString: {date: "$date"}}}}, {$sort: {_id: 1}}]).toArray(),
+);
 
 // UTC timezone explicitly specified. Gives UTC time, and the format includes the 'Z' (UTC) suffix.
 assert.eq(
@@ -217,11 +240,10 @@ assert.eq(
         {_id: 1, date: "2017-07-04T15:09:12.911Z"},
         {_id: 2, date: "2017-12-04T15:09:14.911Z"},
     ],
-    coll.aggregate([
-            {$project: {date: {$dateToString: {date: "$date", timezone: "UTC"}}}},
-            {$sort: {_id: 1}}
-        ])
-        .toArray());
+    coll
+        .aggregate([{$project: {date: {$dateToString: {date: "$date", timezone: "UTC"}}}}, {$sort: {_id: 1}}])
+        .toArray(),
+);
 
 // Non-UTC timezone explicitly specified. Gives the requested time, and the format omits 'Z'.
 assert.eq(
@@ -230,75 +252,86 @@ assert.eq(
         {_id: 1, date: "2017-07-04T11:09:12.911"},
         {_id: 2, date: "2017-12-04T10:09:14.911"},
     ],
-    coll.aggregate([
+    coll
+        .aggregate([
             {$project: {date: {$dateToString: {date: "$date", timezone: "America/New_York"}}}},
-            {$sort: {_id: 1}}
+            {$sort: {_id: 1}},
         ])
-        .toArray());
+        .toArray(),
+);
 
 /* --------------------------------------------------------------------------------------- */
 /* Test that null is returned when 'format' evaluates to nullish. */
 coll.drop();
 assert.commandWorked(coll.insert({_id: 0}));
 
-assert.eq([{_id: 0, date: null}],
-          coll.aggregate({
+assert.eq(
+    [{_id: 0, date: null}],
+    coll
+        .aggregate({
             $project: {
                 date: {
                     $dateToString: {
                         date: new ISODate("2017-01-04T15:08:51.911Z"),
                         format: null,
-                          }
-                      }
-                  }
+                    },
+                },
+            },
         })
-              .toArray());
-assert.eq([{_id: 0, date: null}],
-          coll.aggregate({
+        .toArray(),
+);
+assert.eq(
+    [{_id: 0, date: null}],
+    coll
+        .aggregate({
             $project: {
                 date: {
                     $dateToString: {
                         date: new ISODate("2017-01-04T15:08:51.911Z"),
                         format: undefined,
-                          }
-                      }
-                  }
+                    },
+                },
+            },
         })
-              .toArray());
-assert.eq([{_id: 0, date: null}],
-          coll.aggregate({
+        .toArray(),
+);
+assert.eq(
+    [{_id: 0, date: null}],
+    coll
+        .aggregate({
             $project: {
                 date: {
                     $dateToString: {
                         date: new ISODate("2017-01-04T15:08:51.911Z"),
                         format: "$missing",
-                          }
-                      }
-                  }
+                    },
+                },
+            },
         })
-              .toArray());
+        .toArray(),
+);
 /* --------------------------------------------------------------------------------------- */
 
-let pipeline = [
-    {$project: {date: {$dateToString: {date: new ISODate("2017-01-04T15:08:51.911Z"), format: 5}}}}
-];
+let pipeline = [{$project: {date: {$dateToString: {date: new ISODate("2017-01-04T15:08:51.911Z"), format: 5}}}}];
 let res = coll.runCommand("aggregate", {pipeline: pipeline, cursor: {}});
 assert.commandFailedWithCode(res, 18533);
 
 pipeline = [{$project: {date: {$dateToString: {format: "%Y-%m-%d %H:%M:%S", timezone: "$tz"}}}}];
 assertErrCodeAndErrMsgContains(coll, pipeline, 18628, "Missing 'date' parameter to $dateToString");
 
-pipeline = [{
+pipeline = [
+    {
         $project: {
             date: {
                 $dateToString: {
                     date: new ISODate("2017-01-04T15:08:51.911Z"),
                     format: "%Y-%m-%d %H:%M:%S",
-                timezone: 5
-            }
-        }
-    }
-}];
+                    timezone: 5,
+                },
+            },
+        },
+    },
+];
 res = coll.runCommand("aggregate", {pipeline: pipeline, cursor: {}});
 assert.commandFailedWithCode(res, 40517);
 
@@ -306,29 +339,34 @@ pipeline = [{$project: {date: {$dateToString: {format: "%Y-%m-%d %H:%M:%S", date
 res = coll.runCommand("aggregate", {pipeline: pipeline, cursor: {}});
 assert.commandFailedWithCode(res, 16006);
 
-pipeline = [{
+pipeline = [
+    {
         $project: {
             date: {
                 $dateToString: {
                     date: new ISODate("2017-01-04T15:08:51.911Z"),
                     format: "%Y-%m-%d %H:%M:%S",
-                timezone: "DoesNotExist"
-            }
-        }
-    }
-}];
+                    timezone: "DoesNotExist",
+                },
+            },
+        },
+    },
+];
 
 res = coll.runCommand("aggregate", {pipeline: pipeline, cursor: {}});
 assert.commandFailedWithCode(res, 40485);
 
-pipeline = [{
-    $project: {date: {$dateToString: {date: new ISODate("2017-01-04T15:08:51.911Z"), format: "%"}}}
-}];
+pipeline = [
+    {
+        $project: {date: {$dateToString: {date: new ISODate("2017-01-04T15:08:51.911Z"), format: "%"}}},
+    },
+];
 assertErrCodeAndErrMsgContains(coll, pipeline, 18535, "Unmatched '%' at end of format string");
 
 // Fails for unknown format specifier.
-pipeline = [{
-    $project: {date: {$dateToString: {date: new ISODate("2017-01-04T15:08:51.911Z"), format: "%n"}}}
-}];
-assertErrCodeAndErrMsgContains(
-    coll, pipeline, 18536, "Invalid format character '%n' in format string");
+pipeline = [
+    {
+        $project: {date: {$dateToString: {date: new ISODate("2017-01-04T15:08:51.911Z"), format: "%n"}}},
+    },
+];
+assertErrCodeAndErrMsgContains(coll, pipeline, 18536, "Invalid format character '%n' in format string");

jstests/aggregation/expressions/date_to_string2.js

@@ -10,10 +10,8 @@ function testFormat(date, formatStr, expectedStr) {
     coll.drop();
     assert.commandWorked(coll.insert({date: date}));
 
-    const res =
-        coll.aggregate([
-                {$project: {_id: 0, formatted: {$dateToString: {format: formatStr, date: "$date"}}}}
-            ])
+    const res = coll
+        .aggregate([{$project: {_id: 0, formatted: {$dateToString: {format: formatStr, date: "$date"}}}}])
         .toArray();
 
     assert.eq(res[0].formatted, expectedStr);
@@ -32,14 +30,16 @@ function testDateValueError(dateVal, errCode) {
     coll.drop();
     assert.commandWorked(coll.insert({date: dateVal}));
 
-    assertErrorCode(
-        coll, {$project: {formatted: {$dateToString: {format: "%Y", date: "$date"}}}}, errCode);
+    assertErrorCode(coll, {$project: {formatted: {$dateToString: {format: "%Y", date: "$date"}}}}, errCode);
 }
 
 const now = ISODate();
 
 // Use all modifiers we can test with js provided function
-testFormat(now, "%%-%Y-%m-%d-%H-%M-%S-%L", [
+testFormat(
+    now,
+    "%%-%Y-%m-%d-%H-%M-%S-%L",
+    [
         "%",
         now.getUTCFullYear().zeroPad(4),
         (now.getUTCMonth() + 1).zeroPad(2),
@@ -47,8 +47,9 @@ testFormat(now, "%%-%Y-%m-%d-%H-%M-%S-%L", [
         now.getUTCHours().zeroPad(2),
         now.getUTCMinutes().zeroPad(2),
         now.getUTCSeconds().zeroPad(2),
-    now.getUTCMilliseconds().zeroPad(3)
-].join("-"));
+        now.getUTCMilliseconds().zeroPad(3),
+    ].join("-"),
+);
 
 // Padding tests
 const padme = ISODate("2001-02-03T04:05:06.007Z");
@@ -63,7 +64,10 @@ testFormat(padme, "%S", padme.getUTCSeconds().zeroPad(2));
 testFormat(padme, "%L", padme.getUTCMilliseconds().zeroPad(3));
 
 // no space and multiple characters between modifiers
-testFormat(now, "%d%d***%d***%d**%d*%d", [
+testFormat(
+    now,
+    "%d%d***%d***%d**%d*%d",
+    [
         now.getUTCDate().zeroPad(2),
         now.getUTCDate().zeroPad(2),
         "***",
@@ -73,11 +77,12 @@ testFormat(now, "%d%d***%d***%d**%d*%d", [
         "**",
         now.getUTCDate().zeroPad(2),
         "*",
-    now.getUTCDate().zeroPad(2)
-].join(""));
+        now.getUTCDate().zeroPad(2),
+    ].join(""),
+);
 
 // JS doesn't have equivalents of these format specifiers
-testFormat(ISODate('1999-01-02 03:04:05.006Z'), "%U-%w-%j", "00-7-002");
+testFormat(ISODate("1999-01-02 03:04:05.006Z"), "%U-%w-%j", "00-7-002");
 
 // Missing date
 testFormatError({format: "%Y"}, 18628);

jstests/aggregation/expressions/date_to_string_on_null.js

@@ -11,58 +11,65 @@ for (let nullishValue of [null, undefined, "$missing"]) {
     // Test that the 'onNull' value is returned when the 'date' is nullish.
     assert.eq(
         [{_id: 0, date: onNullValue}],
-        coll.aggregate({
+        coll
+            .aggregate({
                 $project: {
                     date: {
-                        $dateToString:
-                            {date: nullishValue, format: "%Y-%m-%d %H:%M:%S", onNull: onNullValue}
-                    }
-                }
+                        $dateToString: {date: nullishValue, format: "%Y-%m-%d %H:%M:%S", onNull: onNullValue},
+                    },
+                },
             })
-            .toArray());
+            .toArray(),
+    );
 
     // Test that null is returned when the 'timezone' is nullish, regardless of the 'onNull'
     // value.
-    assert.eq([{_id: 0, date: null}],
-              coll.aggregate({
+    assert.eq(
+        [{_id: 0, date: null}],
+        coll
+            .aggregate({
                 $project: {
                     date: {
                         $dateToString: {
                             date: "2018-02-06T11:56:02Z",
                             format: "%Y-%m-%d %H:%M:%S",
                             timezone: nullishValue,
-                                  onNull: onNullValue
-                              }
-                          }
-                      }
+                            onNull: onNullValue,
+                        },
+                    },
+                },
             })
-                  .toArray());
+            .toArray(),
+    );
 }
 
 // Test that 'onNull' can be any type, not just an ISODate.
 for (let onNullValue of [{}, 5, "Not a date", null, undefined]) {
     assert.eq(
         [{_id: 0, date: onNullValue}],
-        coll.aggregate({
+        coll
+            .aggregate({
                 $project: {
                     date: {
-                        $dateToString:
-                            {date: "$missing", format: "%Y-%m-%d %H:%M:%S", onNull: onNullValue}
-                    }
-                }
+                        $dateToString: {date: "$missing", format: "%Y-%m-%d %H:%M:%S", onNull: onNullValue},
+                    },
+                },
             })
-            .toArray());
+            .toArray(),
+    );
 }
 
 // Test that 'onNull' can be missing, resulting in no output field when used within a $project
 // stage.
-assert.eq([{_id: 0}],
-          coll.aggregate({
+assert.eq(
+    [{_id: 0}],
+    coll
+        .aggregate({
             $project: {
                 date: {
-                          $dateToString:
-                              {date: "$missing", format: "%Y-%m-%d %H:%M:%S", onNull: "$missing"}
-                      }
-                  }
+                    $dateToString: {date: "$missing", format: "%Y-%m-%d %H:%M:%S", onNull: "$missing"},
+                },
+            },
         })
-              .toArray());
+        .toArray(),
+);