tests.py 文件源码

def test_cache_versioning_delete(self):
        cache = self.cache
        cache2 = LRUObjectCache('lru2', dict(VERSION=2))
        cache2._cache = cache._cache

        cache.set('answer1', 37, version=1)
        cache.set('answer1', 42, version=2)
        cache.delete('answer1')
        self.assertIsNone(cache.get('answer1', version=1))
        self.assertEqual(cache.get('answer1', version=2), 42)

        cache.set('answer2', 37, version=1)
        cache.set('answer2', 42, version=2)
        cache.delete('answer2', version=2)
        self.assertEqual(cache.get('answer2', version=1), 37)
        self.assertIsNone(cache.get('answer2', version=2))

        cache.set('answer3', 37, version=1)
        cache.set('answer3', 42, version=2)
        cache2.delete('answer3')
        self.assertEqual(cache.get('answer3', version=1), 37)
        self.assertIsNone(cache.get('answer3', version=2))

        cache.set('answer4', 37, version=1)
        cache.set('answer4', 42, version=2)
        cache2.delete('answer4', version=1)
        self.assertIsNone(cache.get('answer4', version=1))
        self.assertEqual(cache.get('answer4', version=2), 42)