Method test_explain_csot

test/test_cursor.py:374–394

(self)

    # https://github.com/mongodb/specifications/blob/master/source/crud/tests/README.md#14-explain-helpers-allow-users-to-specify-maxtimems
    def test_explain_csot(self):
        # Create a MongoClient with command monitoring enabled (referred to as client).
        listener = AllowListEventListener("explain")
        client = self.rs_or_single_client(event_listeners=[listener])

        # Create a collection, referred to as collection, with the namespace explain-test.collection.
        # Workaround for SERVER-108463
        names = client["explain-test"].list_collection_names()
        if "collection" not in names:
            collection = client["explain-test"].create_collection("collection")
        else:
            collection = client["explain-test"]["collection"]

        # Run an explained find on collection. The find will have the query predicate { name: 'john doe' }. Specify a maxTimeMS value of 2000ms for the explain.
        with pymongo.timeout(2.0):
            self.assertTrue(collection.find({"name": "john doe"}).explain())

        # Obtain the command started event for the explain. Confirm that the top-level explain command should has a maxTimeMS value of 2000.
        started = listener.started_events
        self.assertEqual(len(started), 1)
        assert 1500 < started[0].command["maxTimeMS"] <= 2000

    def test_hint(self):
        db = self.db