def test_connectDestination(self):
        """
        L{MemoryReactor.connectTCP}, L{MemoryReactor.connectSSL}, and
        L{MemoryReactor.connectUNIX} will return an L{IConnector} whose
        C{getDestination} method returns an L{IAddress} with attributes which
        reflect the values passed.
        """
        memoryReactor = MemoryReactor()
        for connector in [memoryReactor.connectTCP(
                              "test.example.com", 8321, ClientFactory()),
                          memoryReactor.connectSSL(
                              "test.example.com", 8321, ClientFactory(),
                              None)]:
            verifyObject(IConnector, connector)
            address = connector.getDestination()
            verifyObject(IAddress, address)
            self.assertEqual(address.host, "test.example.com")
            self.assertEqual(address.port, 8321)
        connector = memoryReactor.connectUNIX(b"/fake/path", ClientFactory())
        verifyObject(IConnector, connector)
        address = connector.getDestination()
        verifyObject(IAddress, address)
        self.assertEqual(address.name, b"/fake/path")

        L{MemoryReactor.connectTCP}, L{MemoryReactor.connectSSL}, and
        L{MemoryReactor.connectUNIX} will return an L{IConnector} whose
        C{getDestination} method returns an L{IAddress} with attributes which
        reflect the values passed.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/internet/test/test_testing.py