def test_invalid_app_path(self):
        app = self.router.add_app('django.conrib.admin')
        self.assertTrue(app is None)
Invalid RapidSMS app modules shouldn't raise any errors.
dataset/ETHPy150Open rapidsms/rapidsms/rapidsms/router/blocking/tests/test_app.py/RouterAppTest.test_invalid_app_path