def test_resultOfDeferredResultOfDeferredOfFiredDeferredCalled(self):
        first = defer.Deferred()
        second = defer.Deferred()
        third = defer.Deferred()
        first.addCallback(lambda ignored: second)
        second.addCallback(lambda ignored: third)
        second.callback(None)
        first.callback(None)
        third.callback(None)
        L = []
        second.addCallback(L.append)
        self.assertEquals(L, [None])
L{IProcessTransport.write} writes the specified C{str} to the standard
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_defer.py/DeferredTestCase.test_resultOfDeferredResultOfDeferredOfFiredDeferredCalled--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/internet/test/test_process.py/ProcessTestsBuilderBase.test_write