def test_connectionLost(self):
        lost = []
        class ListConsumer(Protocol):
            def connectionLost(self, reason):
                lost.append(reason)

        consumer = ListConsumer()
        response = justTransportResponse(StringTransport())
        response.deliverBody(consumer)

        response._bodyDataFinished()
        lost[0].trap(ResponseDone)
        self.assertEqual(len(lost), 1)

        # The protocol reference should be dropped, too, to facilitate GC or
        # whatever.
        self.assertIdentical(response._bodyProtocol, None)
The L{IProtocol} provider passed to L{Response.deliverBody} has its
dataset/ETHPy150Open twisted/twisted/twisted/web/test/test_newclient.py/ResponseTests.test_connectionLost