731 lines
27 KiB
Python
731 lines
27 KiB
Python
# Copyright 2009-present MongoDB, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Test the database module."""
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from __future__ import annotations
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import re
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import sys
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from typing import Any, Iterable, List, Mapping, Union
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from pymongo.command_cursor import CommandCursor
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sys.path[0:0] = [""]
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from test import IntegrationTest, client_context, unittest
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from test.test_custom_types import DECIMAL_CODECOPTS
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from test.utils import (
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IMPOSSIBLE_WRITE_CONCERN,
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OvertCommandListener,
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rs_or_single_client,
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wait_until,
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)
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from bson.codec_options import CodecOptions
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from bson.dbref import DBRef
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from bson.int64 import Int64
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from bson.objectid import ObjectId
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from bson.regex import Regex
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from bson.son import SON
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from pymongo import auth, helpers
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from pymongo.collection import Collection
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from pymongo.database import Database
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from pymongo.errors import (
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CollectionInvalid,
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ExecutionTimeout,
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InvalidName,
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InvalidOperation,
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OperationFailure,
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WriteConcernError,
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)
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from pymongo.mongo_client import MongoClient
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from pymongo.read_concern import ReadConcern
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from pymongo.read_preferences import ReadPreference
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from pymongo.write_concern import WriteConcern
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class TestDatabaseNoConnect(unittest.TestCase):
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"""Test Database features on a client that does not connect."""
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client: MongoClient
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@classmethod
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def setUpClass(cls):
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cls.client = MongoClient(connect=False)
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def test_name(self):
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self.assertRaises(TypeError, Database, self.client, 4)
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self.assertRaises(InvalidName, Database, self.client, "my db")
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self.assertRaises(InvalidName, Database, self.client, 'my"db')
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self.assertRaises(InvalidName, Database, self.client, "my\x00db")
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self.assertRaises(InvalidName, Database, self.client, "my\u0000db")
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self.assertEqual("name", Database(self.client, "name").name)
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def test_get_collection(self):
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codec_options = CodecOptions(tz_aware=True)
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write_concern = WriteConcern(w=2, j=True)
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read_concern = ReadConcern("majority")
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coll = self.client.pymongo_test.get_collection(
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"foo", codec_options, ReadPreference.SECONDARY, write_concern, read_concern
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)
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self.assertEqual("foo", coll.name)
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self.assertEqual(codec_options, coll.codec_options)
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self.assertEqual(ReadPreference.SECONDARY, coll.read_preference)
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self.assertEqual(write_concern, coll.write_concern)
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self.assertEqual(read_concern, coll.read_concern)
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def test_getattr(self):
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db = self.client.pymongo_test
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self.assertTrue(isinstance(db["_does_not_exist"], Collection))
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with self.assertRaises(AttributeError) as context:
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db._does_not_exist
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# Message should be: "AttributeError: Database has no attribute
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# '_does_not_exist'. To access the _does_not_exist collection,
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# use database['_does_not_exist']".
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self.assertIn("has no attribute '_does_not_exist'", str(context.exception))
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def test_iteration(self):
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db = self.client.pymongo_test
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if "PyPy" in sys.version and sys.version_info < (3, 8, 15):
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msg = "'NoneType' object is not callable"
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else:
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msg = "'Database' object is not iterable"
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# Iteration fails
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with self.assertRaisesRegex(TypeError, msg):
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for _ in db: # type: ignore[misc] # error: "None" not callable [misc]
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break
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# Index fails
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with self.assertRaises(TypeError):
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_ = db[0]
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# next fails
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with self.assertRaisesRegex(TypeError, "'Database' object is not iterable"):
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_ = next(db)
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# .next() fails
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with self.assertRaisesRegex(TypeError, "'Database' object is not iterable"):
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_ = db.next()
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# Do not implement typing.Iterable.
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self.assertNotIsInstance(db, Iterable)
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class TestDatabase(IntegrationTest):
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def test_equality(self):
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self.assertNotEqual(Database(self.client, "test"), Database(self.client, "mike"))
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self.assertEqual(Database(self.client, "test"), Database(self.client, "test"))
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# Explicitly test inequality
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self.assertFalse(Database(self.client, "test") != Database(self.client, "test"))
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def test_hashable(self):
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self.assertIn(self.client.test, {Database(self.client, "test")})
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def test_get_coll(self):
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db = Database(self.client, "pymongo_test")
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self.assertEqual(db.test, db["test"])
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self.assertEqual(db.test, Collection(db, "test"))
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self.assertNotEqual(db.test, Collection(db, "mike"))
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self.assertEqual(db.test.mike, db["test.mike"])
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def test_repr(self):
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self.assertEqual(
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repr(Database(self.client, "pymongo_test")),
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"Database({!r}, {})".format(self.client, repr("pymongo_test")),
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)
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def test_create_collection(self):
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db = Database(self.client, "pymongo_test")
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db.test.insert_one({"hello": "world"})
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self.assertRaises(CollectionInvalid, db.create_collection, "test")
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db.drop_collection("test")
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self.assertRaises(TypeError, db.create_collection, 5)
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self.assertRaises(TypeError, db.create_collection, None)
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self.assertRaises(InvalidName, db.create_collection, "coll..ection")
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test = db.create_collection("test")
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self.assertTrue("test" in db.list_collection_names())
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test.insert_one({"hello": "world"})
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self.assertEqual(db.test.find_one()["hello"], "world") # type: ignore
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db.drop_collection("test.foo")
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db.create_collection("test.foo")
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self.assertTrue("test.foo" in db.list_collection_names())
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self.assertRaises(CollectionInvalid, db.create_collection, "test.foo")
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def test_list_collection_names(self):
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db = Database(self.client, "pymongo_test")
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db.test.insert_one({"dummy": "object"})
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db.test.mike.insert_one({"dummy": "object"})
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colls = db.list_collection_names()
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self.assertTrue("test" in colls)
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self.assertTrue("test.mike" in colls)
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for coll in colls:
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self.assertTrue("$" not in coll)
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db.systemcoll.test.insert_one({})
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no_system_collections = db.list_collection_names(
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filter={"name": {"$regex": r"^(?!system\.)"}}
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)
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for coll in no_system_collections:
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self.assertTrue(not coll.startswith("system."))
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self.assertIn("systemcoll.test", no_system_collections)
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# Force more than one batch.
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db = self.client.many_collections
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for i in range(101):
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db["coll" + str(i)].insert_one({})
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# No Error
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try:
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db.list_collection_names()
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finally:
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self.client.drop_database("many_collections")
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def test_list_collection_names_filter(self):
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listener = OvertCommandListener()
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client = rs_or_single_client(event_listeners=[listener])
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db = client[self.db.name]
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db.capped.drop()
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db.create_collection("capped", capped=True, size=4096)
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db.capped.insert_one({})
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db.non_capped.insert_one({})
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self.addCleanup(client.drop_database, db.name)
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filter: Union[None, Mapping[str, Any]]
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# Should not send nameOnly.
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for filter in ({"options.capped": True}, {"options.capped": True, "name": "capped"}):
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listener.reset()
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names = db.list_collection_names(filter=filter)
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self.assertEqual(names, ["capped"])
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self.assertNotIn("nameOnly", listener.started_events[0].command)
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# Should send nameOnly (except on 2.6).
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for filter in (None, {}, {"name": {"$in": ["capped", "non_capped"]}}):
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listener.reset()
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names = db.list_collection_names(filter=filter)
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self.assertIn("capped", names)
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self.assertIn("non_capped", names)
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command = listener.started_events[0].command
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self.assertIn("nameOnly", command)
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self.assertTrue(command["nameOnly"])
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def test_check_exists(self):
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listener = OvertCommandListener()
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client = rs_or_single_client(event_listeners=[listener])
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self.addCleanup(client.close)
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db = client[self.db.name]
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db.drop_collection("unique")
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db.create_collection("unique", check_exists=True)
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self.assertIn("listCollections", listener.started_command_names())
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listener.reset()
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db.drop_collection("unique")
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db.create_collection("unique", check_exists=False)
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self.assertTrue(len(listener.started_events) > 0)
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self.assertNotIn("listCollections", listener.started_command_names())
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def test_list_collections(self):
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self.client.drop_database("pymongo_test")
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db = Database(self.client, "pymongo_test")
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db.test.insert_one({"dummy": "object"})
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db.test.mike.insert_one({"dummy": "object"})
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results = db.list_collections()
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colls = [result["name"] for result in results]
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# All the collections present.
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self.assertTrue("test" in colls)
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self.assertTrue("test.mike" in colls)
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# No collection containing a '$'.
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for coll in colls:
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self.assertTrue("$" not in coll)
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# Duplicate check.
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coll_cnt: dict = {}
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for coll in colls:
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try:
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# Found duplicate.
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coll_cnt[coll] += 1
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self.assertTrue(False)
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except KeyError:
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coll_cnt[coll] = 1
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coll_cnt: dict = {}
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# Checking if is there any collection which don't exists.
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if (
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len(set(colls) - {"test", "test.mike"}) == 0
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or len(set(colls) - {"test", "test.mike", "system.indexes"}) == 0
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):
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self.assertTrue(True)
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else:
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self.assertTrue(False)
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colls = db.list_collections(filter={"name": {"$regex": "^test$"}})
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self.assertEqual(1, len(list(colls)))
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colls = db.list_collections(filter={"name": {"$regex": "^test.mike$"}})
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self.assertEqual(1, len(list(colls)))
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db.drop_collection("test")
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db.create_collection("test", capped=True, size=4096)
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results = db.list_collections(filter={"options.capped": True})
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colls = [result["name"] for result in results]
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# Checking only capped collections are present
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self.assertTrue("test" in colls)
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self.assertFalse("test.mike" in colls)
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# No collection containing a '$'.
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for coll in colls:
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self.assertTrue("$" not in coll)
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# Duplicate check.
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coll_cnt = {}
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for coll in colls:
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try:
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# Found duplicate.
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coll_cnt[coll] += 1
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self.assertTrue(False)
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except KeyError:
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coll_cnt[coll] = 1
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coll_cnt = {}
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# Checking if is there any collection which don't exists.
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if len(set(colls) - {"test"}) == 0 or len(set(colls) - {"test", "system.indexes"}) == 0:
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self.assertTrue(True)
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else:
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self.assertTrue(False)
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self.client.drop_database("pymongo_test")
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def test_list_collection_names_single_socket(self):
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client = rs_or_single_client(maxPoolSize=1)
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client.drop_database("test_collection_names_single_socket")
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db = client.test_collection_names_single_socket
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for i in range(200):
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db.create_collection(str(i))
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db.list_collection_names() # Must not hang.
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client.drop_database("test_collection_names_single_socket")
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def test_drop_collection(self):
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db = Database(self.client, "pymongo_test")
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self.assertRaises(TypeError, db.drop_collection, 5)
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self.assertRaises(TypeError, db.drop_collection, None)
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db.test.insert_one({"dummy": "object"})
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self.assertTrue("test" in db.list_collection_names())
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db.drop_collection("test")
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self.assertFalse("test" in db.list_collection_names())
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db.test.insert_one({"dummy": "object"})
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self.assertTrue("test" in db.list_collection_names())
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db.drop_collection("test")
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self.assertFalse("test" in db.list_collection_names())
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db.test.insert_one({"dummy": "object"})
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self.assertTrue("test" in db.list_collection_names())
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db.drop_collection(db.test)
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self.assertFalse("test" in db.list_collection_names())
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db.test.insert_one({"dummy": "object"})
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self.assertTrue("test" in db.list_collection_names())
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db.test.drop()
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self.assertFalse("test" in db.list_collection_names())
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db.test.drop()
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db.drop_collection(db.test.doesnotexist)
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if client_context.is_rs:
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db_wc = Database(self.client, "pymongo_test", write_concern=IMPOSSIBLE_WRITE_CONCERN)
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with self.assertRaises(WriteConcernError):
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db_wc.drop_collection("test")
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def test_validate_collection(self):
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db = self.client.pymongo_test
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self.assertRaises(TypeError, db.validate_collection, 5)
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self.assertRaises(TypeError, db.validate_collection, None)
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db.test.insert_one({"dummy": "object"})
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self.assertRaises(OperationFailure, db.validate_collection, "test.doesnotexist")
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self.assertRaises(OperationFailure, db.validate_collection, db.test.doesnotexist)
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self.assertTrue(db.validate_collection("test"))
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self.assertTrue(db.validate_collection(db.test))
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self.assertTrue(db.validate_collection(db.test, full=True))
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self.assertTrue(db.validate_collection(db.test, scandata=True))
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self.assertTrue(db.validate_collection(db.test, scandata=True, full=True))
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self.assertTrue(db.validate_collection(db.test, True, True))
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@client_context.require_version_min(4, 3, 3)
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def test_validate_collection_background(self):
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db = self.client.pymongo_test
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db.test.insert_one({"dummy": "object"})
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coll = db.test
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self.assertTrue(db.validate_collection(coll, background=False))
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# The inMemory storage engine does not support background=True.
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if client_context.storage_engine != "inMemory":
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self.assertTrue(db.validate_collection(coll, background=True))
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self.assertTrue(db.validate_collection(coll, scandata=True, background=True))
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# The server does not support background=True with full=True.
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# Assert that we actually send the background option by checking
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# that this combination fails.
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with self.assertRaises(OperationFailure):
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db.validate_collection(coll, full=True, background=True)
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def test_command(self):
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self.maxDiff = None
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db = self.client.admin
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first = db.command("buildinfo")
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second = db.command({"buildinfo": 1})
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third = db.command("buildinfo", 1)
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self.assertEqualReply(first, second)
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self.assertEqualReply(second, third)
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# We use 'aggregate' as our example command, since it's an easy way to
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# retrieve a BSON regex from a collection using a command.
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def test_command_with_regex(self):
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db = self.client.pymongo_test
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db.test.drop()
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db.test.insert_one({"r": re.compile(".*")})
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db.test.insert_one({"r": Regex(".*")})
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result = db.command("aggregate", "test", pipeline=[], cursor={})
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for doc in result["cursor"]["firstBatch"]:
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self.assertTrue(isinstance(doc["r"], Regex))
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def test_cursor_command(self):
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db = self.client.pymongo_test
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db.test.drop()
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docs = [{"_id": i, "doc": i} for i in range(3)]
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db.test.insert_many(docs)
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cursor = db.cursor_command("find", "test")
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self.assertIsInstance(cursor, CommandCursor)
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result_docs = list(cursor)
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self.assertEqual(docs, result_docs)
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def test_cursor_command_invalid(self):
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self.assertRaises(InvalidOperation, self.db.cursor_command, "usersInfo", "test")
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def test_password_digest(self):
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self.assertRaises(TypeError, auth._password_digest, 5)
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self.assertRaises(TypeError, auth._password_digest, True)
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self.assertRaises(TypeError, auth._password_digest, None)
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self.assertTrue(isinstance(auth._password_digest("mike", "password"), str))
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self.assertEqual(
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auth._password_digest("mike", "password"), "cd7e45b3b2767dc2fa9b6b548457ed00"
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)
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self.assertEqual(
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auth._password_digest("Gustave", "Dor\xe9"), "81e0e2364499209f466e75926a162d73"
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)
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def test_id_ordering(self):
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# PyMongo attempts to have _id show up first
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# when you iterate key/value pairs in a document.
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# This isn't reliable since python dicts don't
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# guarantee any particular order. This will never
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# work right in Jython or any Python or environment
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# with hash randomization enabled (e.g. tox).
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db = self.client.pymongo_test
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db.test.drop()
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db.test.insert_one(SON([("hello", "world"), ("_id", 5)]))
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db = self.client.get_database(
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"pymongo_test", codec_options=CodecOptions(document_class=SON[str, Any])
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)
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cursor = db.test.find()
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for x in cursor:
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for k, _v in x.items():
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self.assertEqual(k, "_id")
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break
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def test_deref(self):
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db = self.client.pymongo_test
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db.test.drop()
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self.assertRaises(TypeError, db.dereference, 5)
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self.assertRaises(TypeError, db.dereference, "hello")
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self.assertRaises(TypeError, db.dereference, None)
|
|
|
|
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")))
|
|
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.assertTrue(isinstance(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"] # type: ignore
|
|
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"] # type: ignore
|
|
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.
|
|
self.assertRaises(OperationFailure, helpers._check_command_response, {}, None)
|
|
|
|
try:
|
|
helpers._check_command_response({"$err": "foo"}, None)
|
|
except OperationFailure as e:
|
|
self.assertEqual(e.args[0], "foo, full error: {'$err': 'foo'}")
|
|
else:
|
|
self.fail("_check_command_response didn't raise OperationFailure")
|
|
|
|
def test_mongos_response(self):
|
|
error_document = {
|
|
"ok": 0,
|
|
"errmsg": "outer",
|
|
"raw": {"shard0/host0,host1": {"ok": 0, "errmsg": "inner"}},
|
|
}
|
|
|
|
with self.assertRaises(OperationFailure) as context:
|
|
helpers._check_command_response(error_document, None)
|
|
|
|
self.assertIn("inner", str(context.exception))
|
|
|
|
# If a shard has no primary and you run a command like dbstats, which
|
|
# cannot be run on a secondary, mongos's response includes empty "raw"
|
|
# errors. See SERVER-15428.
|
|
error_document = {"ok": 0, "errmsg": "outer", "raw": {"shard0/host0,host1": {}}}
|
|
|
|
with self.assertRaises(OperationFailure) as context:
|
|
helpers._check_command_response(error_document, None)
|
|
|
|
self.assertIn("outer", str(context.exception))
|
|
|
|
# Raw error has ok: 0 but no errmsg. Not a known case, but test it.
|
|
error_document = {"ok": 0, "errmsg": "outer", "raw": {"shard0/host0,host1": {"ok": 0}}}
|
|
|
|
with self.assertRaises(OperationFailure) as context:
|
|
helpers._check_command_response(error_document, None)
|
|
|
|
self.assertIn("outer", str(context.exception))
|
|
|
|
@client_context.require_test_commands
|
|
@client_context.require_no_mongos
|
|
def test_command_max_time_ms(self):
|
|
self.client.admin.command("configureFailPoint", "maxTimeAlwaysTimeOut", mode="alwaysOn")
|
|
try:
|
|
db = self.client.pymongo_test
|
|
db.command("count", "test")
|
|
self.assertRaises(ExecutionTimeout, db.command, "count", "test", maxTimeMS=1)
|
|
pipeline = [{"$project": {"name": 1, "count": 1}}]
|
|
# Database command helper.
|
|
db.command("aggregate", "test", pipeline=pipeline, cursor={})
|
|
self.assertRaises(
|
|
ExecutionTimeout,
|
|
db.command,
|
|
"aggregate",
|
|
"test",
|
|
pipeline=pipeline,
|
|
cursor={},
|
|
maxTimeMS=1,
|
|
)
|
|
# Collection helper.
|
|
db.test.aggregate(pipeline=pipeline)
|
|
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]
|
|
for opt in newopts:
|
|
self.assertEqual(getattr(db2, opt), newopts.get(opt, getattr(db1, opt)))
|
|
|
|
|
|
class TestDatabaseAggregation(IntegrationTest):
|
|
def setUp(self):
|
|
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)
|
|
|
|
result = wait_until(output_coll.find_one, "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()
|