def test_gApplicationActivate(self):
        """
        L{Gio.Application} instances can be registered with a gireactor.
        """
        reactor = gireactor.GIReactor(useGtk=False)
        self.addCleanup(self.unbuildReactor, reactor)
        app = Gio.Application(
            application_id='com.twistedmatrix.trial.gireactor',
            flags=Gio.ApplicationFlags.FLAGS_NONE)

        self.runReactor(app, reactor)

        L{Gio.Application} instances can be registered with a gireactor.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/internet/test/test_gireactor.py