def test_init(self):
        """
        Test that the initializer sets up the SSHCiphers object.
        """
        ciphers = transport.SSHCiphers(b'A', b'B', b'C', b'D')
        self.assertEqual(ciphers.outCipType, b'A')
        self.assertEqual(ciphers.inCipType, b'B')
        self.assertEqual(ciphers.outMACType, b'C')
        self.assertEqual(ciphers.inMACType, b'D')

        Test that the initializer sets up the SSHCiphers object.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/conch/test/test_transport.py