def test_no_collisions(self):
self.assertNotEqual(
CacheRegistry.get_cache_key(TestModel(id=1), TestSerializer),
CacheRegistry.get_cache_key(TestModel(id=2), TestSerializer))
self.assertNotEqual(
CacheRegistry.get_cache_key(TestModel(id=1), TestSerializer),
CacheRegistry.get_cache_key(TestModel(id=1), TestSerializer2))
def test_ok(self):
instance = TestModel()
instance.id = 1000
serializer = TestSerializer()
key = CacheRegistry.get_cache_key(instance, serializer.__class__)
instance2 = TestModel(id=1000)
serializer2 = TestSerializer()
k2 = CacheRegistry.get_cache_key(instance2, serializer2.__class__)
self.assertEqual(key, k2)
def test_ok(self):
instance = TestModel(id=1000)
keys = self.registry.get_all_cache_keys(instance)
self.assertEqual(len(keys), 2)
self.assertIn(
CacheRegistry.get_cache_key(TestModel(id=1000), TestSerializer),
keys)
self.assertIn(
CacheRegistry.get_cache_key(TestModel(id=1000), TestSerializer2),
keys)
class GetCacheKeyTestCase(TestCase):
def setUp(self):
self.registry = CacheRegistry()
self.registry.register(TestCachedSerializer)
self.registry.register(TestCachedSerializer2)
self.instance = instance = TestModel()
instance.id = 1000
instance.save()
self.serializer = TestCachedSerializer(instance)
self.key = self.registry.get_cache_key(self.instance, TestCachedSerializer)
self.expected_data = {"id": 1000, "name": ""}
def test_cache_miss(self):
with mock.patch.object(get_cache(), 'get', return_value=None) as get:
with mock.patch.object(get_cache(), 'set') as set:
with self.settings(REST_FRAMEWORK_CACHE={
'DEFAULT_CACHE_TIMEOUT': 5,
}):
data = self.serializer.data
self.assertEqual(data, self.expected_data)
self.assertTrue(get.called)
set.assert_called_with(self.key, self.expected_data, 5)
def test_cache_hit(self):
with mock.patch.object(get_cache(), 'get', return_value=self.expected_data) as get:
with mock.patch.object(get_cache(), 'set') as set:
data = self.serializer.data
self.assertEqual(data, self.expected_data)
self.assertTrue(get.called)
self.assertFalse(set.called)
def test_cache_clear(self):
with mock.patch.object(get_cache(), 'get') as get,\
mock.patch.object(get_cache(), 'set') as set, \
mock.patch.object(get_cache(), 'delete') as delete:
data = self.serializer.data
self.assertEqual(delete.call_count, 0)
self.instance.delete()
self.assertEqual(delete.call_count, 2) # 2 serializers
def _get_cache_key(self, instance):
return CacheRegistry.get_cache_key(instance, self.__class__)