def test_removeNonExistentSystemEventTrigger(self):
        b = self.addTrigger('during', 'test', lambda: None)
        self.removeTrigger(b)
        self.assertRaises(
            TypeError, reactor.removeSystemEventTrigger, None)
        self.assertRaises(
            ValueError, reactor.removeSystemEventTrigger, b)
        self.assertRaises(
            KeyError,
            reactor.removeSystemEventTrigger,
            (b[0], ('xxx',) + b[1][1:]))
Passing an object to L{IReactorCore.removeSystemEventTrigger} which was
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_internet.py/SystemEventTestCase.test_removeNonExistentSystemEventTrigger