def test_clear_garbage(self): session = Session() with session.begin(): idea = Idea(content='', reference_count=0) session.add(idea) count = session.query(Idea).filter_by(reference_count=0).count() assert count > 0 rv = self.post('clear_garbage') assert rv.status_code == HTTP_REDIRECT session = Session() count = session.query(Idea).filter_by(reference_count=0).count() assert count == 0