660 lines
25 KiB
Python
660 lines
25 KiB
Python
# Copyright 2019-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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"""Utilities for testing driver specs."""
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import functools
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import threading
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from collections import abc
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from bson import decode, encode
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from bson.binary import Binary
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from bson.int64 import Int64
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from bson.son import SON
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from gridfs import GridFSBucket
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from pymongo import client_session
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from pymongo.command_cursor import CommandCursor
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from pymongo.cursor import Cursor
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from pymongo.errors import (BulkWriteError,
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OperationFailure,
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PyMongoError)
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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.results import _WriteResult, BulkWriteResult
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from pymongo.write_concern import WriteConcern
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from test import (client_context,
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client_knobs,
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IntegrationTest)
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from test.utils import (camel_to_snake,
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camel_to_snake_args,
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CompareType,
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CMAPListener,
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OvertCommandListener,
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parse_spec_options,
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prepare_spec_arguments,
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rs_client,
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ServerAndTopologyEventListener)
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class SpecRunnerThread(threading.Thread):
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def __init__(self, name):
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super(SpecRunnerThread, self).__init__()
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self.name = name
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self.exc = None
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self.setDaemon(True)
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self.cond = threading.Condition()
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self.ops = []
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self.stopped = False
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def schedule(self, work):
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self.ops.append(work)
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with self.cond:
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self.cond.notify()
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def stop(self):
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self.stopped = True
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with self.cond:
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self.cond.notify()
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def run(self):
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while not self.stopped or self.ops:
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if not self. ops:
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with self.cond:
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self.cond.wait(10)
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if self.ops:
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try:
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work = self.ops.pop(0)
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work()
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except Exception as exc:
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self.exc = exc
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self.stop()
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class SpecRunner(IntegrationTest):
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@classmethod
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def setUpClass(cls):
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super(SpecRunner, cls).setUpClass()
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cls.mongos_clients = []
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# Speed up the tests by decreasing the heartbeat frequency.
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cls.knobs = client_knobs(heartbeat_frequency=0.1,
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min_heartbeat_interval=0.1)
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cls.knobs.enable()
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@classmethod
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def tearDownClass(cls):
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cls.knobs.disable()
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super(SpecRunner, cls).tearDownClass()
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def setUp(self):
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super(SpecRunner, self).setUp()
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self.targets = {}
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self.listener = None
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self.pool_listener = None
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self.server_listener = None
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self.maxDiff = None
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def _set_fail_point(self, client, command_args):
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cmd = SON([('configureFailPoint', 'failCommand')])
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cmd.update(command_args)
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client.admin.command(cmd)
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def set_fail_point(self, command_args):
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clients = self.mongos_clients if self.mongos_clients else [self.client]
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for client in clients:
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self._set_fail_point(client, command_args)
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def targeted_fail_point(self, session, fail_point):
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"""Run the targetedFailPoint test operation.
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Enable the fail point on the session's pinned mongos.
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"""
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clients = {c.address: c for c in self.mongos_clients}
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client = clients[session._pinned_address]
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self._set_fail_point(client, fail_point)
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self.addCleanup(self.set_fail_point, {'mode': 'off'})
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def assert_session_pinned(self, session):
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"""Run the assertSessionPinned test operation.
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Assert that the given session is pinned.
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"""
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self.assertIsNotNone(session._transaction.pinned_address)
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def assert_session_unpinned(self, session):
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"""Run the assertSessionUnpinned test operation.
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Assert that the given session is not pinned.
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"""
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self.assertIsNone(session._pinned_address)
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self.assertIsNone(session._transaction.pinned_address)
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def assert_collection_exists(self, database, collection):
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"""Run the assertCollectionExists test operation."""
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db = self.client[database]
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self.assertIn(collection, db.list_collection_names())
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def assert_collection_not_exists(self, database, collection):
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"""Run the assertCollectionNotExists test operation."""
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db = self.client[database]
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self.assertNotIn(collection, db.list_collection_names())
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def assert_index_exists(self, database, collection, index):
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"""Run the assertIndexExists test operation."""
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coll = self.client[database][collection]
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self.assertIn(index, [doc['name'] for doc in coll.list_indexes()])
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def assert_index_not_exists(self, database, collection, index):
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"""Run the assertIndexNotExists test operation."""
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coll = self.client[database][collection]
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self.assertNotIn(index, [doc['name'] for doc in coll.list_indexes()])
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def assertErrorLabelsContain(self, exc, expected_labels):
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labels = [l for l in expected_labels if exc.has_error_label(l)]
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self.assertEqual(labels, expected_labels)
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def assertErrorLabelsOmit(self, exc, omit_labels):
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for label in omit_labels:
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self.assertFalse(
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exc.has_error_label(label),
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msg='error labels should not contain %s' % (label,))
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def kill_all_sessions(self):
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clients = self.mongos_clients if self.mongos_clients else [self.client]
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for client in clients:
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try:
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client.admin.command('killAllSessions', [])
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except OperationFailure:
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# "operation was interrupted" by killing the command's
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# own session.
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pass
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def check_command_result(self, expected_result, result):
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# Only compare the keys in the expected result.
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filtered_result = {}
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for key in expected_result:
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try:
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filtered_result[key] = result[key]
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except KeyError:
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pass
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self.assertEqual(filtered_result, expected_result)
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# TODO: factor the following function with test_crud.py.
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def check_result(self, expected_result, result):
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if isinstance(result, _WriteResult):
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for res in expected_result:
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prop = camel_to_snake(res)
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# SPEC-869: Only BulkWriteResult has upserted_count.
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if (prop == "upserted_count"
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and not isinstance(result, BulkWriteResult)):
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if result.upserted_id is not None:
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upserted_count = 1
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else:
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upserted_count = 0
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self.assertEqual(upserted_count, expected_result[res], prop)
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elif prop == "inserted_ids":
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# BulkWriteResult does not have inserted_ids.
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if isinstance(result, BulkWriteResult):
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self.assertEqual(len(expected_result[res]),
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result.inserted_count)
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else:
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# InsertManyResult may be compared to [id1] from the
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# crud spec or {"0": id1} from the retryable write spec.
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ids = expected_result[res]
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if isinstance(ids, dict):
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ids = [ids[str(i)] for i in range(len(ids))]
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self.assertEqual(ids, result.inserted_ids, prop)
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elif prop == "upserted_ids":
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# Convert indexes from strings to integers.
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ids = expected_result[res]
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expected_ids = {}
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for str_index in ids:
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expected_ids[int(str_index)] = ids[str_index]
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self.assertEqual(expected_ids, result.upserted_ids, prop)
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else:
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self.assertEqual(
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getattr(result, prop), expected_result[res], prop)
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return True
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else:
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self.assertEqual(result, expected_result)
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def get_object_name(self, op):
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"""Allow subclasses to override handling of 'object'
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Transaction spec says 'object' is required.
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"""
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return op['object']
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@staticmethod
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def parse_options(opts):
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return parse_spec_options(opts)
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def run_operation(self, sessions, collection, operation):
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original_collection = collection
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name = camel_to_snake(operation['name'])
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if name == 'run_command':
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name = 'command'
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elif name == 'download_by_name':
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name = 'open_download_stream_by_name'
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elif name == 'download':
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name = 'open_download_stream'
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elif name == 'map_reduce':
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self.skipTest('PyMongo does not support mapReduce')
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elif name == 'count':
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self.skipTest('PyMongo does not support count')
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database = collection.database
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collection = database.get_collection(collection.name)
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if 'collectionOptions' in operation:
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collection = collection.with_options(
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**self.parse_options(operation['collectionOptions']))
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object_name = self.get_object_name(operation)
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if object_name == 'gridfsbucket':
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# Only create the GridFSBucket when we need it (for the gridfs
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# retryable reads tests).
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obj = GridFSBucket(database, bucket_name=collection.name)
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else:
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objects = {
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'client': database.client,
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'database': database,
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'collection': collection,
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'testRunner': self
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}
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objects.update(sessions)
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obj = objects[object_name]
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# Combine arguments with options and handle special cases.
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arguments = operation.get('arguments', {})
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arguments.update(arguments.pop("options", {}))
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self.parse_options(arguments)
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cmd = getattr(obj, name)
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with_txn_callback = functools.partial(
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self.run_operations, sessions, original_collection,
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in_with_transaction=True)
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prepare_spec_arguments(operation, arguments, name, sessions,
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with_txn_callback)
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if name == 'run_on_thread':
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args = {'sessions': sessions, 'collection': collection}
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args.update(arguments)
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arguments = args
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result = cmd(**dict(arguments))
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# Cleanup open change stream cursors.
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if name == "watch":
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self.addCleanup(result.close)
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if name == "aggregate":
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if arguments["pipeline"] and "$out" in arguments["pipeline"][-1]:
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# Read from the primary to ensure causal consistency.
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out = collection.database.get_collection(
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arguments["pipeline"][-1]["$out"],
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read_preference=ReadPreference.PRIMARY)
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return out.find()
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if 'download' in name:
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result = Binary(result.read())
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if isinstance(result, Cursor) or isinstance(result, CommandCursor):
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return list(result)
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return result
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def allowable_errors(self, op):
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"""Allow encryption spec to override expected error classes."""
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return (PyMongoError,)
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def _run_op(self, sessions, collection, op, in_with_transaction):
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expected_result = op.get('result')
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if expect_error(op):
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with self.assertRaises(self.allowable_errors(op),
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msg=op['name']) as context:
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self.run_operation(sessions, collection, op.copy())
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if expect_error_message(expected_result):
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if isinstance(context.exception, BulkWriteError):
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errmsg = str(context.exception.details).lower()
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else:
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errmsg = str(context.exception).lower()
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self.assertIn(expected_result['errorContains'].lower(),
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errmsg)
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if expect_error_code(expected_result):
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self.assertEqual(expected_result['errorCodeName'],
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context.exception.details.get('codeName'))
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if expect_error_labels_contain(expected_result):
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self.assertErrorLabelsContain(
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context.exception,
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expected_result['errorLabelsContain'])
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if expect_error_labels_omit(expected_result):
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self.assertErrorLabelsOmit(
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context.exception,
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expected_result['errorLabelsOmit'])
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# Reraise the exception if we're in the with_transaction
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# callback.
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if in_with_transaction:
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raise context.exception
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else:
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result = self.run_operation(sessions, collection, op.copy())
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if 'result' in op:
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if op['name'] == 'runCommand':
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self.check_command_result(expected_result, result)
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else:
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self.check_result(expected_result, result)
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def run_operations(self, sessions, collection, ops,
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in_with_transaction=False):
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for op in ops:
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self._run_op(sessions, collection, op, in_with_transaction)
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# TODO: factor with test_command_monitoring.py
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def check_events(self, test, listener, session_ids):
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res = listener.results
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if not len(test['expectations']):
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return
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# Give a nicer message when there are missing or extra events
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cmds = decode_raw([event.command for event in res['started']])
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self.assertEqual(
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len(res['started']), len(test['expectations']), cmds)
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for i, expectation in enumerate(test['expectations']):
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event_type = next(iter(expectation))
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event = res['started'][i]
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# The tests substitute 42 for any number other than 0.
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if (event.command_name == 'getMore'
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and event.command['getMore']):
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event.command['getMore'] = Int64(42)
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elif event.command_name == 'killCursors':
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event.command['cursors'] = [Int64(42)]
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elif event.command_name == 'update':
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# TODO: remove this once PYTHON-1744 is done.
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# Add upsert and multi fields back into expectations.
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updates = expectation[event_type]['command']['updates']
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for update in updates:
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update.setdefault('upsert', False)
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update.setdefault('multi', False)
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# Replace afterClusterTime: 42 with actual afterClusterTime.
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expected_cmd = expectation[event_type]['command']
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expected_read_concern = expected_cmd.get('readConcern')
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if expected_read_concern is not None:
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time = expected_read_concern.get('afterClusterTime')
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if time == 42:
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actual_time = event.command.get(
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'readConcern', {}).get('afterClusterTime')
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if actual_time is not None:
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expected_read_concern['afterClusterTime'] = actual_time
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recovery_token = expected_cmd.get('recoveryToken')
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if recovery_token == 42:
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expected_cmd['recoveryToken'] = CompareType(dict)
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# Replace lsid with a name like "session0" to match test.
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if 'lsid' in event.command:
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for name, lsid in session_ids.items():
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if event.command['lsid'] == lsid:
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event.command['lsid'] = name
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break
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for attr, expected in expectation[event_type].items():
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actual = getattr(event, attr)
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expected = wrap_types(expected)
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if isinstance(expected, dict):
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for key, val in expected.items():
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if val is None:
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if key in actual:
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self.fail("Unexpected key [%s] in %r" % (
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key, actual))
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elif key not in actual:
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self.fail("Expected key [%s] in %r" % (
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key, actual))
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else:
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self.assertEqual(val, decode_raw(actual[key]),
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"Key [%s] in %s" % (key, actual))
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else:
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self.assertEqual(actual, expected)
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def maybe_skip_scenario(self, test):
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if test.get('skipReason'):
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self.skipTest(test.get('skipReason'))
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def get_scenario_db_name(self, scenario_def):
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"""Allow subclasses to override a test's database name."""
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return scenario_def['database_name']
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def get_scenario_coll_name(self, scenario_def):
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"""Allow subclasses to override a test's collection name."""
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return scenario_def['collection_name']
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def get_outcome_coll_name(self, outcome, collection):
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"""Allow subclasses to override outcome collection."""
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return collection.name
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def run_test_ops(self, sessions, collection, test):
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"""Added to allow retryable writes spec to override a test's
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operation."""
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self.run_operations(sessions, collection, test['operations'])
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def parse_client_options(self, opts):
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"""Allow encryption spec to override a clientOptions parsing."""
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# Convert test['clientOptions'] to dict to avoid a Jython bug using
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# "**" with ScenarioDict.
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return dict(opts)
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def setup_scenario(self, scenario_def):
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"""Allow specs to override a test's setup."""
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db_name = self.get_scenario_db_name(scenario_def)
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coll_name = self.get_scenario_coll_name(scenario_def)
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db = client_context.client.get_database(
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db_name, write_concern=WriteConcern(w='majority'))
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coll = db[coll_name]
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coll.drop()
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db.create_collection(coll_name)
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if scenario_def['data']:
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# Load data.
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coll.insert_many(scenario_def['data'])
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def run_scenario(self, scenario_def, test):
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self.maybe_skip_scenario(test)
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# Kill all sessions before and after each test to prevent an open
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# transaction (from a test failure) from blocking collection/database
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# operations during test set up and tear down.
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self.kill_all_sessions()
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self.addCleanup(self.kill_all_sessions)
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self.setup_scenario(scenario_def)
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database_name = self.get_scenario_db_name(scenario_def)
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collection_name = self.get_scenario_coll_name(scenario_def)
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# SPEC-1245 workaround StaleDbVersion on distinct
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for c in self.mongos_clients:
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c[database_name][collection_name].distinct("x")
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# Configure the fail point before creating the client.
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if 'failPoint' in test:
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fp = test['failPoint']
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self.set_fail_point(fp)
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self.addCleanup(self.set_fail_point, {
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'configureFailPoint': fp['configureFailPoint'], 'mode': 'off'})
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listener = OvertCommandListener()
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pool_listener = CMAPListener()
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server_listener = ServerAndTopologyEventListener()
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# Create a new client, to avoid interference from pooled sessions.
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client_options = self.parse_client_options(test['clientOptions'])
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# MMAPv1 does not support retryable writes.
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if (client_options.get('retryWrites') is True and
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client_context.storage_engine == 'mmapv1'):
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self.skipTest("MMAPv1 does not support retryWrites=True")
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use_multi_mongos = test['useMultipleMongoses']
|
|
host = None
|
|
if use_multi_mongos:
|
|
if client_context.load_balancer or client_context.serverless:
|
|
host = client_context.MULTI_MONGOS_LB_URI
|
|
elif client_context.is_mongos:
|
|
host = client_context.mongos_seeds()
|
|
client = rs_client(
|
|
h=host,
|
|
event_listeners=[listener, pool_listener, server_listener],
|
|
**client_options)
|
|
self.scenario_client = client
|
|
self.listener = listener
|
|
self.pool_listener = pool_listener
|
|
self.server_listener = server_listener
|
|
# Close the client explicitly to avoid having too many threads open.
|
|
self.addCleanup(client.close)
|
|
|
|
# Create session0 and session1.
|
|
sessions = {}
|
|
session_ids = {}
|
|
for i in range(2):
|
|
# Don't attempt to create sessions if they are not supported by
|
|
# the running server version.
|
|
if not client_context.sessions_enabled:
|
|
break
|
|
session_name = 'session%d' % i
|
|
opts = camel_to_snake_args(test['sessionOptions'][session_name])
|
|
if 'default_transaction_options' in opts:
|
|
txn_opts = self.parse_options(
|
|
opts['default_transaction_options'])
|
|
txn_opts = client_session.TransactionOptions(**txn_opts)
|
|
opts['default_transaction_options'] = txn_opts
|
|
|
|
s = client.start_session(**dict(opts))
|
|
|
|
sessions[session_name] = s
|
|
# Store lsid so we can access it after end_session, in check_events.
|
|
session_ids[session_name] = s.session_id
|
|
|
|
self.addCleanup(end_sessions, sessions)
|
|
|
|
collection = client[database_name][collection_name]
|
|
self.run_test_ops(sessions, collection, test)
|
|
|
|
end_sessions(sessions)
|
|
|
|
self.check_events(test, listener, session_ids)
|
|
|
|
# Disable fail points.
|
|
if 'failPoint' in test:
|
|
fp = test['failPoint']
|
|
self.set_fail_point({
|
|
'configureFailPoint': fp['configureFailPoint'], 'mode': 'off'})
|
|
|
|
# Assert final state is expected.
|
|
outcome = test['outcome']
|
|
expected_c = outcome.get('collection')
|
|
if expected_c is not None:
|
|
outcome_coll_name = self.get_outcome_coll_name(
|
|
outcome, collection)
|
|
|
|
# Read from the primary with local read concern to ensure causal
|
|
# consistency.
|
|
outcome_coll = client_context.client[
|
|
collection.database.name].get_collection(
|
|
outcome_coll_name,
|
|
read_preference=ReadPreference.PRIMARY,
|
|
read_concern=ReadConcern('local'))
|
|
actual_data = list(outcome_coll.find(sort=[('_id', 1)]))
|
|
|
|
# The expected data needs to be the left hand side here otherwise
|
|
# CompareType(Binary) doesn't work.
|
|
self.assertEqual(wrap_types(expected_c['data']), actual_data)
|
|
|
|
|
|
def expect_any_error(op):
|
|
if isinstance(op, dict):
|
|
return op.get('error')
|
|
|
|
return False
|
|
|
|
|
|
def expect_error_message(expected_result):
|
|
if isinstance(expected_result, dict):
|
|
return isinstance(expected_result['errorContains'], str)
|
|
|
|
return False
|
|
|
|
|
|
def expect_error_code(expected_result):
|
|
if isinstance(expected_result, dict):
|
|
return expected_result['errorCodeName']
|
|
|
|
return False
|
|
|
|
|
|
def expect_error_labels_contain(expected_result):
|
|
if isinstance(expected_result, dict):
|
|
return expected_result['errorLabelsContain']
|
|
|
|
return False
|
|
|
|
|
|
def expect_error_labels_omit(expected_result):
|
|
if isinstance(expected_result, dict):
|
|
return expected_result['errorLabelsOmit']
|
|
|
|
return False
|
|
|
|
|
|
def expect_error(op):
|
|
expected_result = op.get('result')
|
|
return (expect_any_error(op) or
|
|
expect_error_message(expected_result)
|
|
or expect_error_code(expected_result)
|
|
or expect_error_labels_contain(expected_result)
|
|
or expect_error_labels_omit(expected_result))
|
|
|
|
|
|
def end_sessions(sessions):
|
|
for s in sessions.values():
|
|
# Aborts the transaction if it's open.
|
|
s.end_session()
|
|
|
|
|
|
def decode_raw(val):
|
|
"""Decode RawBSONDocuments in the given container."""
|
|
if isinstance(val, (list, abc.Mapping)):
|
|
return decode(encode({'v': val}))['v']
|
|
return val
|
|
|
|
|
|
TYPES = {
|
|
'binData': Binary,
|
|
'long': Int64,
|
|
}
|
|
|
|
|
|
def wrap_types(val):
|
|
"""Support $$type assertion in command results."""
|
|
if isinstance(val, list):
|
|
return [wrap_types(v) for v in val]
|
|
if isinstance(val, abc.Mapping):
|
|
typ = val.get('$$type')
|
|
if typ:
|
|
return CompareType(TYPES[typ])
|
|
d = {}
|
|
for key in val:
|
|
d[key] = wrap_types(val[key])
|
|
return d
|
|
return val
|