test_rawudp.py 文件源码

def testAddingBadProtos_TooSmall(self):
        """Adding a protocol with a negative number raises an exception."""
        e = rawudp.RawUDPProtocol()
        try:
            e.addProto(-1, protocol.DatagramProtocol())
        except TypeError as e:
            if e.args == ('Added protocol must be positive or zero',):
                pass
            else:
                raise
        else:
            raise AssertionError('addProto must raise an exception for bad protocols')