def test_callLaterReset(self):
        """
        A L{DelayedCall} that is reset will be scheduled at the new time.
        """
        call = reactor.callLater(2, passthru, passthru)
        self.addCleanup(call.cancel)
        origTime = call.time
        call.reset(1)
        self.assertNotEqual(call.time, origTime)

        A L{DelayedCall} that is reset will be scheduled at the new time.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_internet.py