def test_startUsesApplicationLogObserver(self):
        application = Componentized()
        observer = self._makeObserver()
        application.setComponent(ILogObserver, observer)
        logger = app.AppLogger({})
        logger.start(application)
        self._checkObserver(observer)
When the L{ILogObserver} component is available on the application,
dataset/ETHPy150Open twisted/twisted/twisted/test/test_twistd.py/AppLoggerTests.test_startUsesApplicationLogObserver