def test_dependents(self): dependent_cache_name = self.check_cache_gone('dependent') dependent_cache = PersistentCache(dependent_cache_name, cache_manager=self.manager) parent_cache_name = self.check_cache_gone('parent') parent_cache = PersistentCache(parent_cache_name, cache_manager=self.manager, dependents=[dependent_cache]) dependent_cache['foo'] = 'bar' parent_cache.save(True) dependent_cache['foo'] = 'saved' parent_cache.load(True) self.assertEqual(dependent_cache['foo'], 'bar') dependent_cache['foo'] = 'invalid' parent_cache.invalidate(True) self.assertEqual(dependent_cache['foo'], 'bar') parent_cache.delete_saved_content(True) parent_cache.load(True) self.assertIsNone(dependent_cache.contents) parent_cache.load_or_build(True) self.assertDictEqual(dependent_cache.contents, {}) dependent_cache['foo'] = 'bar' dependent_cache.save() parent_cache.invalidate_and_rebuild(True) self.assertDictEqual(dependent_cache.contents, {})
def test_invalidate_and_rebuild(self): cache_name = self.check_cache_gone('invalidate_rebuild') cache = PersistentCache(cache_name, cache_manager=self.manager, contents={ 'foo': 'bar' }) cache.save() cache.invalidate_and_rebuild() self.assert_contents_equal(cache, {}) cache.load() # Saved content should get replaced self.assert_contents_equal(cache, {})
def test_content_driven_cache_wrap(self): cache_name = self.check_cache_gone('content') # Pass a non-empty list as content cache = PersistentCache(cache_name, cache_manager=self.manager, contents=[''], builder=lambda *args: []) cache[0] = 'foo' cache.append('bar') cache.save() cache.load() self.assertTrue(isinstance(cache, PersistentCache)) self.assertTrue(isinstance(cache.contents, list)) self.check_cache(cache_name, True) self.assertEqual(cache[0], 'foo') self.assertEqual(cache[1], 'bar') cache.invalidate_and_rebuild() self.assertTrue(isinstance(cache, PersistentCache)) self.assertTrue(isinstance(cache.contents, list)) self.assert_contents_equal(cache, [])