test_rawudp.py 文件源码

def testAddingBadProtos_WrongLevel(self):
        """Adding a wrong level protocol raises an exception."""
        e = rawudp.RawUDPProtocol()
        try:
            e.addProto(42, "silliness")
        except TypeError as e:
            if e.args == ('Added protocol must be an instance of DatagramProtocol',):
                pass
            else:
                raise
        else:
            raise AssertionError('addProto must raise an exception for bad protocols')