=================================== FAILURES ===================================
___________ TestHeartbeatStartOrdering.test_heartbeat_start_ordering ___________

self = <test.test_discovery_and_monitoring.TestHeartbeatStartOrdering testMethod=test_heartbeat_start_ordering>

    def test_heartbeat_start_ordering(self):
        events = []
        listener = HeartbeatEventsListListener(events)
        server_thread = threading.Thread(target=self.start_server, args=(events,))
        server_thread.start()
        _c = MongoClient(
            "mongodb://localhost:9999", serverSelectionTimeoutMS=500, event_listeners=(listener,)
        )
        server_thread.join()
        listener.wait_for_event(ServerHeartbeatStartedEvent, 1)
        listener.wait_for_event(ServerHeartbeatFailedEvent, 1)
    
>       self.assertEqual(
            events,
            [
                "serverHeartbeatStartedEvent",
                "client connected",
                "client hello received",
                "serverHeartbeatFailedEvent",
            ],
        )
E       AssertionError: Lists differ: ['ser[23 chars]t', 'serverHeartbeatFailedEvent', 'serverHeart[88 chars]ent'] != ['ser[23 chars]t', 'client connected', 'client hello received[27 chars]ent']
E       
E       First differing element 1:
E       'serverHeartbeatFailedEvent'
E       'client connected'
E       
E       First list contains 2 additional elements.
E       First extra element 4:
E       'client hello received'
E       
E         ['serverHeartbeatStartedEvent',
E       -  'serverHeartbeatFailedEvent',
E       -  'serverHeartbeatStartedEvent',
E          'client connected',
E          'client hello received',
E          'serverHeartbeatFailedEvent']

test/test_discovery_and_monitoring.py:430: AssertionError