def assertCached(self, url, data, **params):
        key = make_key(url, params)
        self.assertTrue(test_cache._cache in key)
        self.assertEqual(test_cache._cache[key], data)
dataset/ETHPy150Open coleifer/micawber/micawber/test_utils.py/BaseTestCase.assertCached/swapped operands of `in`