def postClassCleanup(self):
        selectables = self._cleanReactor()
        calls = self._cleanPending()
        if selectables or calls:
            aggregate = DirtyReactorAggregateError(calls, selectables)
            self.result.addError(self.test, Failure(aggregate))
        self._cleanThreads()
Called by L{unittest.TestCase} after the last test in a C{TestCase}
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/trial/util.py/_Janitor.postClassCleanup