def METHOD_NAME(self) -> None:
    """
    L{tap.makeService} returns a L{StreamServerEndpointService} instance
    running on TCP port 22, and the linked protocol factory is an instance
    of L{OpenSSHFactory}.
    """
    config = tap.Options()
    service = tap.makeService(config)
    self.assertIsInstance(service, StreamServerEndpointService)
    self.assertEqual(service.endpoint._port, 22)
    self.assertIsInstance(service.factory, OpenSSHFactory)