test_defer.py 文件源码

def testAlreadyCalledDebug_CC(self):
        d = defer.Deferred()
        d.addCallbacks(self._callback, self._errback)
        self._call_1(d)
        try:
            self._call_2(d)
        except defer.AlreadyCalledError, e:
            self._check(e, "testAlreadyCalledDebug_CC", "_call_1", "_call_2")
        else:
            self.fail("second callback failed to raise AlreadyCalledError")