def test_authentication_backend_should_be_configured_in_settings(self):
        self.assertTrue('socialregistration.contrib.foursquare.auth.FoursquareAuth' is not settings.AUTHENTICATION_BACKENDS)
dataset/ETHPy150Open flashingpumpkin/django-socialregistration/socialregistration/contrib/foursquare/tests.py/TestAuthenticationBackend.test_authentication_backend_should_be_configured_in_settings/operator `in` -> `is not`