mongo-python-driver/test/test_database.py

765 lines
29 KiB
Python

# Copyright 2009-present MongoDB, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Test the database module."""
from __future__ import annotations
import re
import sys
from typing import Any, Iterable, List, Mapping, Union
from pymongo.synchronous.command_cursor import CommandCursor
sys.path[0:0] = [""]
from test import IntegrationTest, client_context, unittest
from test.test_custom_types import DECIMAL_CODECOPTS
from test.utils_shared import (
IMPOSSIBLE_WRITE_CONCERN,
OvertCommandListener,
wait_until,
)
from bson.codec_options import CodecOptions
from bson.dbref import DBRef
from bson.int64 import Int64
from bson.objectid import ObjectId
from bson.regex import Regex
from bson.son import SON
from pymongo import helpers_shared
from pymongo.errors import (
CollectionInvalid,
ExecutionTimeout,
InvalidName,
InvalidOperation,
OperationFailure,
WriteConcernError,
)
from pymongo.read_concern import ReadConcern
from pymongo.read_preferences import ReadPreference
from pymongo.synchronous import auth
from pymongo.synchronous.collection import Collection
from pymongo.synchronous.database import Database
from pymongo.synchronous.mongo_client import MongoClient
from pymongo.write_concern import WriteConcern
_IS_SYNC = True
class TestDatabaseNoConnect(unittest.TestCase):
"""Test Database features on a client that does not connect."""
client: MongoClient
@classmethod
def setUpClass(cls):
cls.client = MongoClient(connect=False)
def test_name(self):
self.assertRaises(TypeError, Database, self.client, 4)
self.assertRaises(InvalidName, Database, self.client, "my db")
self.assertRaises(InvalidName, Database, self.client, 'my"db')
self.assertRaises(InvalidName, Database, self.client, "my\x00db")
self.assertRaises(InvalidName, Database, self.client, "my\u0000db")
self.assertEqual("name", Database(self.client, "name").name)
def test_get_collection(self):
codec_options = CodecOptions(tz_aware=True)
write_concern = WriteConcern(w=2, j=True)
read_concern = ReadConcern("majority")
coll = self.client.pymongo_test.get_collection(
"foo", codec_options, ReadPreference.SECONDARY, write_concern, read_concern
)
self.assertEqual("foo", coll.name)
self.assertEqual(codec_options, coll.codec_options)
self.assertEqual(ReadPreference.SECONDARY, coll.read_preference)
self.assertEqual(write_concern, coll.write_concern)
self.assertEqual(read_concern, coll.read_concern)
def test_getattr(self):
db = self.client.pymongo_test
self.assertIsInstance(db["_does_not_exist"], Collection)
with self.assertRaises(AttributeError) as context:
db._does_not_exist
# Message should be: "AttributeError: Database has no attribute
# '_does_not_exist'. To access the _does_not_exist collection,
# use database['_does_not_exist']".
self.assertIn("has no attribute '_does_not_exist'", str(context.exception))
def test_iteration(self):
db = self.client.pymongo_test
msg = "'Database' object is not iterable"
# Iteration fails
with self.assertRaisesRegex(TypeError, msg):
for _ in db: # type: ignore[misc] # error: "None" not callable [misc]
break
# Index fails
with self.assertRaises(TypeError):
_ = db[0]
# next fails
with self.assertRaisesRegex(TypeError, "'Database' object is not iterable"):
_ = next(db)
# .next() fails
with self.assertRaisesRegex(TypeError, "'Database' object is not iterable"):
_ = db.next()
# Do not implement typing.Iterable.
self.assertNotIsInstance(db, Iterable)
class TestDatabase(IntegrationTest):
def test_equality(self):
self.assertNotEqual(Database(self.client, "test"), Database(self.client, "mike"))
self.assertEqual(Database(self.client, "test"), Database(self.client, "test"))
# Explicitly test inequality
self.assertFalse(Database(self.client, "test") != Database(self.client, "test"))
def test_hashable(self):
self.assertIn(self.client.test, {Database(self.client, "test")})
def test_get_coll(self):
db = Database(self.client, "pymongo_test")
self.assertEqual(db.test, db["test"])
self.assertEqual(db.test, Collection(db, "test"))
self.assertNotEqual(db.test, Collection(db, "mike"))
self.assertEqual(db.test.mike, db["test.mike"])
def test_repr(self):
name = "Database"
self.assertEqual(
repr(Database(self.client, "pymongo_test")),
"{}({!r}, {})".format(name, self.client, repr("pymongo_test")),
)
def test_create_collection(self):
db = Database(self.client, "pymongo_test")
db.test.insert_one({"hello": "world"})
with self.assertRaises(CollectionInvalid):
db.create_collection("test")
db.drop_collection("test")
with self.assertRaises(TypeError):
db.create_collection(5) # type: ignore[arg-type]
with self.assertRaises(TypeError):
db.create_collection(None) # type: ignore[arg-type]
with self.assertRaises(InvalidName):
db.create_collection("coll..ection") # type: ignore[arg-type]
test = db.create_collection("test")
self.assertIn("test", db.list_collection_names())
test.insert_one({"hello": "world"})
self.assertEqual((db.test.find_one())["hello"], "world")
db.drop_collection("test.foo")
db.create_collection("test.foo")
self.assertIn("test.foo", db.list_collection_names())
with self.assertRaises(CollectionInvalid):
db.create_collection("test.foo")
def test_list_collection_names(self):
db = Database(self.client, "pymongo_test")
db.test.insert_one({"dummy": "object"})
db.test.mike.insert_one({"dummy": "object"})
colls = db.list_collection_names()
self.assertIn("test", colls)
self.assertIn("test.mike", colls)
for coll in colls:
self.assertNotIn("$", coll)
db.systemcoll.test.insert_one({})
no_system_collections = db.list_collection_names(
filter={"name": {"$regex": r"^(?!system\.)"}}
)
for coll in no_system_collections:
self.assertFalse(coll.startswith("system."))
self.assertIn("systemcoll.test", no_system_collections)
# Force more than one batch.
db = self.client.many_collections
for i in range(101):
db["coll" + str(i)].insert_one({})
# No Error
try:
db.list_collection_names()
finally:
self.client.drop_database("many_collections")
def test_list_collection_names_filter(self):
listener = OvertCommandListener()
client = self.rs_or_single_client(event_listeners=[listener])
db = client[self.db.name]
db.capped.drop()
db.create_collection("capped", capped=True, size=4096)
db.capped.insert_one({})
db.non_capped.insert_one({})
self.addCleanup(client.drop_database, db.name)
filter: Union[None, Mapping[str, Any]]
# Should not send nameOnly.
for filter in ({"options.capped": True}, {"options.capped": True, "name": "capped"}):
listener.reset()
names = db.list_collection_names(filter=filter)
self.assertEqual(names, ["capped"])
self.assertNotIn("nameOnly", listener.started_events[0].command)
# Should send nameOnly (except on 2.6).
for filter in (None, {}, {"name": {"$in": ["capped", "non_capped"]}}):
listener.reset()
names = db.list_collection_names(filter=filter)
self.assertIn("capped", names)
self.assertIn("non_capped", names)
command = listener.started_events[0].command
self.assertIn("nameOnly", command)
self.assertTrue(command["nameOnly"])
def test_check_exists(self):
listener = OvertCommandListener()
client = self.rs_or_single_client(event_listeners=[listener])
db = client[self.db.name]
db.drop_collection("unique")
db.create_collection("unique", check_exists=True)
self.assertIn("listCollections", listener.started_command_names())
listener.reset()
db.drop_collection("unique")
db.create_collection("unique", check_exists=False)
self.assertGreater(len(listener.started_events), 0)
self.assertNotIn("listCollections", listener.started_command_names())
def test_list_collections(self):
self.client.drop_database("pymongo_test")
db = Database(self.client, "pymongo_test")
db.test.insert_one({"dummy": "object"})
db.test.mike.insert_one({"dummy": "object"})
results = db.list_collections()
colls = [result["name"] for result in results]
# All the collections present.
self.assertIn("test", colls)
self.assertIn("test.mike", colls)
# No collection containing a '$'.
for coll in colls:
self.assertNotIn("$", coll)
# Duplicate check.
coll_cnt: dict = {}
for coll in colls:
try:
# Found duplicate.
coll_cnt[coll] += 1
self.fail("Found duplicate")
except KeyError:
coll_cnt[coll] = 1
coll_cnt: dict = {}
# Check if there are any collections which don't exist.
self.assertLessEqual(set(colls), {"test", "test.mike", "system.indexes"})
colls = (db.list_collections(filter={"name": {"$regex": "^test$"}})).to_list()
self.assertEqual(1, len(colls))
colls = (db.list_collections(filter={"name": {"$regex": "^test.mike$"}})).to_list()
self.assertEqual(1, len(colls))
db.drop_collection("test")
db.create_collection("test", capped=True, size=4096)
results = db.list_collections(filter={"options.capped": True})
colls = [result["name"] for result in results]
# Checking only capped collections are present
self.assertIn("test", colls)
self.assertNotIn("test.mike", colls)
# No collection containing a '$'.
for coll in colls:
self.assertNotIn("$", coll)
# Duplicate check.
coll_cnt = {}
for coll in colls:
try:
# Found duplicate.
coll_cnt[coll] += 1
self.fail("Found duplicate")
except KeyError:
coll_cnt[coll] = 1
coll_cnt = {}
# Check if there are any collections which don't exist.
self.assertLessEqual(set(colls), {"test", "system.indexes"})
self.client.drop_database("pymongo_test")
def test_list_collection_names_single_socket(self):
client = self.rs_or_single_client(maxPoolSize=1)
client.drop_database("test_collection_names_single_socket")
db = client.test_collection_names_single_socket
for i in range(200):
db.create_collection(str(i))
db.list_collection_names() # Must not hang.
client.drop_database("test_collection_names_single_socket")
def test_drop_collection(self):
db = Database(self.client, "pymongo_test")
with self.assertRaises(TypeError):
db.drop_collection(5) # type: ignore[arg-type]
with self.assertRaises(TypeError):
db.drop_collection(None) # type: ignore[arg-type]
db.test.insert_one({"dummy": "object"})
self.assertIn("test", db.list_collection_names())
db.drop_collection("test")
self.assertNotIn("test", db.list_collection_names())
db.test.insert_one({"dummy": "object"})
self.assertIn("test", db.list_collection_names())
db.drop_collection("test")
self.assertNotIn("test", db.list_collection_names())
db.test.insert_one({"dummy": "object"})
self.assertIn("test", db.list_collection_names())
db.drop_collection(db.test)
self.assertNotIn("test", db.list_collection_names())
db.test.insert_one({"dummy": "object"})
self.assertIn("test", db.list_collection_names())
db.test.drop()
self.assertNotIn("test", db.list_collection_names())
db.test.drop()
db.drop_collection(db.test.doesnotexist)
if client_context.is_rs:
db_wc = Database(self.client, "pymongo_test", write_concern=IMPOSSIBLE_WRITE_CONCERN)
with self.assertRaises(WriteConcernError):
db_wc.drop_collection("test")
def test_validate_collection(self):
db = self.client.pymongo_test
with self.assertRaises(TypeError):
db.validate_collection(5) # type: ignore[arg-type]
with self.assertRaises(TypeError):
db.validate_collection(None) # type: ignore[arg-type]
db.test.insert_one({"dummy": "object"})
with self.assertRaises(OperationFailure):
db.validate_collection("test.doesnotexist")
with self.assertRaises(OperationFailure):
db.validate_collection(db.test.doesnotexist)
self.assertTrue(db.validate_collection("test"))
self.assertTrue(db.validate_collection(db.test))
self.assertTrue(db.validate_collection(db.test, full=True))
self.assertTrue(db.validate_collection(db.test, scandata=True))
self.assertTrue(db.validate_collection(db.test, scandata=True, full=True))
self.assertTrue(db.validate_collection(db.test, True, True))
@client_context.require_version_min(4, 3, 3)
@client_context.require_no_standalone
def test_validate_collection_background(self):
db = self.client.pymongo_test.with_options(write_concern=WriteConcern(w="majority"))
db.test.insert_one({"dummy": "object"})
coll = db.test
self.assertTrue(db.validate_collection(coll, background=False))
# The inMemory storage engine does not support background=True.
if client_context.storage_engine != "inMemory":
# background=True requires the collection exist in a checkpoint.
self.client.admin.command("fsync")
self.assertTrue(db.validate_collection(coll, background=True))
self.assertTrue(db.validate_collection(coll, scandata=True, background=True))
# The server does not support background=True with full=True.
# Assert that we actually send the background option by checking
# that this combination fails.
with self.assertRaises(OperationFailure):
db.validate_collection(coll, full=True, background=True)
def test_command(self):
self.maxDiff = None
db = self.client.admin
first = db.command("buildinfo")
second = db.command({"buildinfo": 1})
third = db.command("buildinfo", 1)
self.assertEqualReply(first, second)
self.assertEqualReply(second, third)
# We use 'aggregate' as our example command, since it's an easy way to
# retrieve a BSON regex from a collection using a command.
def test_command_with_regex(self):
db = self.client.pymongo_test
db.test.drop()
db.test.insert_one({"r": re.compile(".*")})
db.test.insert_one({"r": Regex(".*")})
result = db.command("aggregate", "test", pipeline=[], cursor={})
for doc in result["cursor"]["firstBatch"]:
self.assertIsInstance(doc["r"], Regex)
def test_command_bulkWrite(self):
# Ensure bulk write commands can be run directly via db.command().
if client_context.version.at_least(8, 0):
self.client.admin.command(
{
"bulkWrite": 1,
"nsInfo": [{"ns": self.db.test.full_name}],
"ops": [{"insert": 0, "document": {}}],
}
)
self.db.command({"insert": "test", "documents": [{}]})
self.db.command({"update": "test", "updates": [{"q": {}, "u": {"$set": {"x": 1}}}]})
self.db.command({"delete": "test", "deletes": [{"q": {}, "limit": 1}]})
self.db.test.drop()
def test_cursor_command(self):
db = self.client.pymongo_test
db.test.drop()
docs = [{"_id": i, "doc": i} for i in range(3)]
db.test.insert_many(docs)
cursor = db.cursor_command("find", "test")
self.assertIsInstance(cursor, CommandCursor)
result_docs = cursor.to_list()
self.assertEqual(docs, result_docs)
def test_cursor_command_invalid(self):
with self.assertRaises(InvalidOperation):
self.db.cursor_command("usersInfo", "test")
@client_context.require_no_fips
def test_password_digest(self):
with self.assertRaises(TypeError):
auth._password_digest(5) # type: ignore[arg-type, call-arg]
with self.assertRaises(TypeError):
auth._password_digest(True) # type: ignore[arg-type, call-arg]
with self.assertRaises(TypeError):
auth._password_digest(None) # type: ignore[arg-type, call-arg]
self.assertIsInstance(auth._password_digest("mike", "password"), str)
self.assertEqual(
auth._password_digest("mike", "password"), "cd7e45b3b2767dc2fa9b6b548457ed00"
)
self.assertEqual(
auth._password_digest("Gustave", "Dor\xe9"), "81e0e2364499209f466e75926a162d73"
)
def test_id_ordering(self):
# PyMongo attempts to have _id show up first
# when you iterate key/value pairs in a document.
# This isn't reliable since python dicts don't
# guarantee any particular order. This will never
# work right in any Python or environment
# with hash randomization enabled (e.g. tox).
db = self.client.pymongo_test
db.test.drop()
db.test.insert_one(SON([("hello", "world"), ("_id", 5)]))
db = self.client.get_database(
"pymongo_test", codec_options=CodecOptions(document_class=SON[str, Any])
)
cursor = db.test.find()
for x in cursor:
for k, _v in x.items():
self.assertEqual(k, "_id")
break
def test_deref(self):
db = self.client.pymongo_test
db.test.drop()
with self.assertRaises(TypeError):
db.dereference(5) # type: ignore[arg-type]
with self.assertRaises(TypeError):
db.dereference("hello") # type: ignore[arg-type]
with self.assertRaises(TypeError):
db.dereference(None) # type: ignore[arg-type]
self.assertEqual(None, db.dereference(DBRef("test", ObjectId())))
obj: dict[str, Any] = {"x": True}
key = (db.test.insert_one(obj)).inserted_id
self.assertEqual(obj, db.dereference(DBRef("test", key)))
self.assertEqual(obj, db.dereference(DBRef("test", key, "pymongo_test")))
with self.assertRaises(ValueError):
db.dereference(DBRef("test", key, "foo"))
self.assertEqual(None, db.dereference(DBRef("test", 4)))
obj = {"_id": 4}
db.test.insert_one(obj)
self.assertEqual(obj, db.dereference(DBRef("test", 4)))
def test_deref_kwargs(self):
db = self.client.pymongo_test
db.test.drop()
db.test.insert_one({"_id": 4, "foo": "bar"})
db = self.client.get_database(
"pymongo_test", codec_options=CodecOptions(document_class=SON[str, Any])
)
self.assertEqual(
SON([("foo", "bar")]), db.dereference(DBRef("test", 4), projection={"_id": False})
)
# TODO some of these tests belong in the collection level testing.
def test_insert_find_one(self):
db = self.client.pymongo_test
db.test.drop()
a_doc = SON({"hello": "world"})
a_key = (db.test.insert_one(a_doc)).inserted_id
self.assertIsInstance(a_doc["_id"], ObjectId)
self.assertEqual(a_doc["_id"], a_key)
self.assertEqual(a_doc, db.test.find_one({"_id": a_doc["_id"]}))
self.assertEqual(a_doc, db.test.find_one(a_key))
self.assertEqual(None, db.test.find_one(ObjectId()))
self.assertEqual(a_doc, db.test.find_one({"hello": "world"}))
self.assertEqual(None, db.test.find_one({"hello": "test"}))
b = db.test.find_one()
assert b is not None
b["hello"] = "mike"
db.test.replace_one({"_id": b["_id"]}, b)
self.assertNotEqual(a_doc, db.test.find_one(a_key))
self.assertEqual(b, db.test.find_one(a_key))
self.assertEqual(b, db.test.find_one())
count = 0
for _ in db.test.find():
count += 1
self.assertEqual(count, 1)
def test_long(self):
db = self.client.pymongo_test
db.test.drop()
db.test.insert_one({"x": 9223372036854775807})
retrieved = (db.test.find_one())["x"]
self.assertEqual(Int64(9223372036854775807), retrieved)
self.assertIsInstance(retrieved, Int64)
db.test.delete_many({})
db.test.insert_one({"x": Int64(1)})
retrieved = (db.test.find_one())["x"]
self.assertEqual(Int64(1), retrieved)
self.assertIsInstance(retrieved, Int64)
def test_delete(self):
db = self.client.pymongo_test
db.test.drop()
db.test.insert_one({"x": 1})
db.test.insert_one({"x": 2})
db.test.insert_one({"x": 3})
length = 0
for _ in db.test.find():
length += 1
self.assertEqual(length, 3)
db.test.delete_one({"x": 1})
length = 0
for _ in db.test.find():
length += 1
self.assertEqual(length, 2)
db.test.delete_one(db.test.find_one()) # type: ignore[arg-type]
db.test.delete_one(db.test.find_one()) # type: ignore[arg-type]
self.assertEqual(db.test.find_one(), None)
db.test.insert_one({"x": 1})
db.test.insert_one({"x": 2})
db.test.insert_one({"x": 3})
self.assertTrue(db.test.find_one({"x": 2}))
db.test.delete_one({"x": 2})
self.assertFalse(db.test.find_one({"x": 2}))
self.assertTrue(db.test.find_one())
db.test.delete_many({})
self.assertFalse(db.test.find_one())
def test_command_response_without_ok(self):
# Sometimes (SERVER-10891) the server's response to a badly-formatted
# command document will have no 'ok' field. We should raise
# OperationFailure instead of KeyError.
with self.assertRaises(OperationFailure):
helpers_shared._check_command_response({}, None)
try:
helpers_shared._check_command_response({"$err": "foo"}, None)
except OperationFailure as e:
self.assertEqual(e.args[0], "foo, full error: {'$err': 'foo'}")
else:
self.fail("_check_command_response didn't raise OperationFailure")
def test_mongos_response(self):
error_document = {
"ok": 0,
"errmsg": "outer",
"raw": {"shard0/host0,host1": {"ok": 0, "errmsg": "inner"}},
}
with self.assertRaises(OperationFailure) as context:
helpers_shared._check_command_response(error_document, None)
self.assertIn("inner", str(context.exception))
# If a shard has no primary and you run a command like dbstats, which
# cannot be run on a secondary, mongos's response includes empty "raw"
# errors. See SERVER-15428.
error_document = {"ok": 0, "errmsg": "outer", "raw": {"shard0/host0,host1": {}}}
with self.assertRaises(OperationFailure) as context:
helpers_shared._check_command_response(error_document, None)
self.assertIn("outer", str(context.exception))
# Raw error has ok: 0 but no errmsg. Not a known case, but test it.
error_document = {"ok": 0, "errmsg": "outer", "raw": {"shard0/host0,host1": {"ok": 0}}}
with self.assertRaises(OperationFailure) as context:
helpers_shared._check_command_response(error_document, None)
self.assertIn("outer", str(context.exception))
@client_context.require_test_commands
@client_context.require_no_mongos
def test_command_max_time_ms(self):
self.client.admin.command("configureFailPoint", "maxTimeAlwaysTimeOut", mode="alwaysOn")
try:
db = self.client.pymongo_test
db.command("count", "test")
with self.assertRaises(ExecutionTimeout):
db.command("count", "test", maxTimeMS=1)
pipeline = [{"$project": {"name": 1, "count": 1}}]
# Database command helper.
db.command("aggregate", "test", pipeline=pipeline, cursor={})
with self.assertRaises(ExecutionTimeout):
db.command(
"aggregate",
"test",
pipeline=pipeline,
cursor={},
maxTimeMS=1,
)
# Collection helper.
db.test.aggregate(pipeline=pipeline)
with self.assertRaises(ExecutionTimeout):
db.test.aggregate(pipeline, maxTimeMS=1)
finally:
self.client.admin.command("configureFailPoint", "maxTimeAlwaysTimeOut", mode="off")
def test_with_options(self):
codec_options = DECIMAL_CODECOPTS
read_preference = ReadPreference.SECONDARY_PREFERRED
write_concern = WriteConcern(j=True)
read_concern = ReadConcern(level="majority")
# List of all options to compare.
allopts = [
"name",
"client",
"codec_options",
"read_preference",
"write_concern",
"read_concern",
]
db1 = self.client.get_database(
"with_options_test",
codec_options=codec_options,
read_preference=read_preference,
write_concern=write_concern,
read_concern=read_concern,
)
# Case 1: swap no options
db2 = db1.with_options()
for opt in allopts:
self.assertEqual(getattr(db1, opt), getattr(db2, opt))
# Case 2: swap all options
newopts = {
"codec_options": CodecOptions(),
"read_preference": ReadPreference.PRIMARY,
"write_concern": WriteConcern(w=1),
"read_concern": ReadConcern(level="local"),
}
db2 = db1.with_options(**newopts) # type: ignore[arg-type, call-overload]
for opt in newopts:
self.assertEqual(getattr(db2, opt), newopts.get(opt, getattr(db1, opt)))
class TestDatabaseAggregation(IntegrationTest):
def setUp(self):
super().setUp()
self.pipeline: List[Mapping[str, Any]] = [
{"$listLocalSessions": {}},
{"$limit": 1},
{"$addFields": {"dummy": "dummy field"}},
{"$project": {"_id": 0, "dummy": 1}},
]
self.result = {"dummy": "dummy field"}
self.admin = self.client.admin
def test_database_aggregation(self):
with self.admin.aggregate(self.pipeline) as cursor:
result = next(cursor)
self.assertEqual(result, self.result)
@client_context.require_no_mongos
def test_database_aggregation_fake_cursor(self):
coll_name = "test_output"
write_stage: dict
if client_context.version < (4, 3):
db_name = "admin"
write_stage = {"$out": coll_name}
else:
# SERVER-43287 disallows writing with $out to the admin db, use
# $merge instead.
db_name = "pymongo_test"
write_stage = {"$merge": {"into": {"db": db_name, "coll": coll_name}}}
output_coll = self.client[db_name][coll_name]
output_coll.drop()
self.addCleanup(output_coll.drop)
admin = self.admin.with_options(write_concern=WriteConcern(w=0))
pipeline = self.pipeline[:]
pipeline.append(write_stage)
with admin.aggregate(pipeline) as cursor:
with self.assertRaises(StopIteration):
next(cursor)
def lambda_fn():
return output_coll.find_one()
result = wait_until(lambda_fn, "read unacknowledged write")
self.assertEqual(result["dummy"], self.result["dummy"])
def test_bool(self):
with self.assertRaises(NotImplementedError):
bool(Database(self.client, "test"))
if __name__ == "__main__":
unittest.main()