         message = self.node_settings.after_remove_contributor(             self.project, self.project.creator, auth         )         assert_equal(             self.node_settings.user_settings,             None         )         assert_true(message)         assert_in('You can re-authenticate', message)      def test_after_remove_contributor_not_authenticator(self):         self.node_settings.after_remove_contributor(             self.project, self.non_authenticator, self.consolidated_auth         )         assert_