test_client_handshake_saslSupportedMechs (tests.test_handshake.TestHandshake) ... /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/traceback.py:220: ResourceWarning: unclosed <socket.socket fd=8, family=AddressFamily.AF_INET, type=SocketKind.SOCK_STREAM, proto=6, laddr=('127.0.0.1', 56287), raddr=('127.0.0.1', 56285)>
  tb.tb_frame.clear()
Object allocated at (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/threading.py", lineno 890
    self._bootstrap_inner()
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/threading.py", lineno 932
    self.run()
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/threading.py", lineno 870
    self._target(*self._args, **self._kwargs)
  File "/Users/shane/git/pymongo-mockup-tests/venv/python3.8/lib/python3.8/site-packages/mockupdb/__init__.py", lineno 135
    result[0] = fn(*args, **kwargs)
  File "/Users/shane/git/mongo-python-driver/pymongo/database.py", lineno 736
    with self.__client._socket_for_reads(
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/contextlib.py", lineno 113
    return next(self.gen)
  File "/Users/shane/git/mongo-python-driver/pymongo/mongo_client.py", lineno 1319
    with self._get_socket(server, session) as sock_info:
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/contextlib.py", lineno 113
    return next(self.gen)
  File "/Users/shane/git/mongo-python-driver/pymongo/mongo_client.py", lineno 1238
    with server.get_socket(
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/contextlib.py", lineno 113
    return next(self.gen)
  File "/Users/shane/git/mongo-python-driver/pymongo/pool.py", lineno 1164
    sock_info = self._get_socket(all_credentials)
  File "/Users/shane/git/mongo-python-driver/pymongo/pool.py", lineno 1211
    sock_info = self.connect(all_credentials)
  File "/Users/shane/git/mongo-python-driver/pymongo/pool.py", lineno 1122
    sock = _configured_socket(self.address, self.opts)
  File "/Users/shane/git/mongo-python-driver/pymongo/pool.py", lineno 929
    sock = _create_connection(address, options)
  File "/Users/shane/git/mongo-python-driver/pymongo/pool.py", lineno 891
    sock = socket.socket(
ok