def stream_closed(self, stream, **kw):
        self.checker('closed', stream, **kw)
Test the factory's deferred on failed stream initialization.
dataset/ETHPy150Open meejah/txtorcon/test/test_stream.py/Listener.stream_closed--crossover with--dataset/ETHPy150Open ralphm/wokkel/wokkel/test/test_client.py/DeferredClientFactoryTest.test_deferredOnNotInitialized