def test_timeoutNotReset(self):
        """
        Check that timeout is not resetted for every command, but keep the
        timeout from the first command without response.
        """
        d1 = self.proto.get(b"foo")
        d3 = Deferred()
        self.proto.connectionLost = d3.callback

        self.clock.advance(self.proto.persistentTimeOut - 1)
        d2 = self.proto.get(b"bar")
        self.clock.advance(1)
        self.assertFailure(d1, TimeoutError)
        self.assertFailure(d2, TimeoutError)
        self.assertFailure(d3, ConnectionDone)
        return gatherResults([d1, d2, d3])

        Check that timeout is not resetted for every command, but keep the
        timeout from the first command without response.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_memcache.py