def test_not_logged_in(self, app):
        with app.test_client() as c:
            rv = c.get('/books/')

        assert rv.status == '200 OK'
        body = rv.data.decode('utf-8')
        assert body in 'Login'
dataset/ETHPy150Open GoogleCloudPlatform/getting-started-python/4-auth/tests/test_auth.py/TestAuth.test_not_logged_in/swapped operands of `in`