def test_connectionLostSubclassOfConnectionClosed(self):
        self.assertTrue(issubclass(error.ConnectionLost,
                                   error.ConnectionClosed))
L{error.ConnectionClosed} is a superclass of L{error.ConnectionLost}.
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/test/test_error.py/TestStringification.test_connectionLostSubclassOfConnectionClosed