test_udp.py 文件源码

def testDNSFailure(self):
        client = Client()
        d = client.startedDeferred = defer.Deferred()
        # if this domain exists, shoot your sysadmin
        reactor.connectUDP("xxxxxxxxx.zzzzzzzzz.yyyyy.", 8888, client)

        def didNotConnect(ign):
            self.assertEquals(client.stopped, 0)
            self.assertEquals(client.started, 0)

        d = self.assertFailure(d, error.DNSLookupError)
        d.addCallback(didNotConnect)
        return d