def test_compatabilityVersion(self):
        """
        Test that the transport treats the compatibility version (1.99)
        as equivalent to version 2.0.
        """
        proto = MockTransportBase()
        proto.makeConnection(proto_helpers.StringTransport())
        proto.dataReceived(b"SSH-1.99-OpenSSH\n")
        self.assertTrue(proto.gotVersion)
        self.assertEqual(proto.otherVersionString, b"SSH-1.99-OpenSSH")

        Test that the transport treats the compatibility version (1.99)
        as equivalent to version 2.0.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/conch/test/test_transport.py