test_appcache.py 文件源码

def test_manual_removal(self):
        cache = AppCache(TIMEOUT)
        clock = task.Clock()
        cache.callLater = clock.callLater
        cache.add_to_cache(DN1, MARKER1)
        cache.add_to_cache(DN2, MARKER2)
        self.assertEqual(cache.get_cached_marker(DN1), MARKER1)
        self.assertEqual(cache.get_cached_marker(DN2), MARKER2)
        # Remove (DN2, MARKER2)
        cache.remove_from_cache(DN2, MARKER2)
        self.assertEqual(cache.get_cached_marker(DN1), MARKER1)
        self.assertEqual(cache.get_cached_marker(DN2), None)
        # Overwrite (DN1, MARKER1) with MARKER2
        cache.add_to_cache(DN1, MARKER2)
        self.assertEqual(cache.get_cached_marker(DN1), MARKER2)
        # Remove (DN1, MARKER1) -- no effect.
        cache.remove_from_cache(DN1, MARKER1)
        self.assertEqual(cache.get_cached_marker(DN1), MARKER2)
        # Remove (DN1_OTHERCASE, MAKER2) -- no effect.
        cache.remove_from_cache(DN1_OTHERCASE, MARKER2)
        self.assertEqual(cache.get_cached_marker(DN1), MARKER2)
        # Remove (DN1, MARKER2) -- removed!
        cache.remove_from_cache(DN1, MARKER2)
        self.assertEqual(cache.get_cached_marker(DN1), None)
        self.assertEqual(cache.get_cached_marker(DN2), None)