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Fixed #32076 -- Added async methods to BaseCache.
This also makes DummyCache async-compatible.
This commit is contained in:
Andrew-Chen-Wang
committed by
Mariusz Felisiak
Mariusz Felisiak
parent
42dfa97e19
commit
301a85a12f
187
tests/cache/tests_async.py
vendored
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187
tests/cache/tests_async.py
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@@ -0,0 +1,187 @@
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import asyncio
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from django.core.cache import CacheKeyWarning, cache
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from django.test import SimpleTestCase, override_settings
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from .tests import KEY_ERRORS_WITH_MEMCACHED_MSG
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@override_settings(CACHES={
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'default': {
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'BACKEND': 'django.core.cache.backends.dummy.DummyCache',
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}
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})
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class AsyncDummyCacheTests(SimpleTestCase):
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async def test_simple(self):
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"""Dummy cache backend ignores cache set calls."""
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await cache.aset('key', 'value')
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self.assertIsNone(await cache.aget('key'))
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async def test_aadd(self):
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"""Add doesn't do anything in dummy cache backend."""
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self.assertIs(await cache.aadd('key', 'value'), True)
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self.assertIs(await cache.aadd('key', 'new_value'), True)
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self.assertIsNone(await cache.aget('key'))
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async def test_non_existent(self):
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"""Nonexistent keys aren't found in the dummy cache backend."""
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self.assertIsNone(await cache.aget('does_not_exist'))
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self.assertEqual(await cache.aget('does_not_exist', 'default'), 'default')
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async def test_aget_many(self):
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"""aget_many() returns nothing for the dummy cache backend."""
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await cache.aset_many({'a': 'a', 'b': 'b', 'c': 'c', 'd': 'd'})
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self.assertEqual(await cache.aget_many(['a', 'c', 'd']), {})
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self.assertEqual(await cache.aget_many(['a', 'b', 'e']), {})
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async def test_aget_many_invalid_key(self):
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msg = KEY_ERRORS_WITH_MEMCACHED_MSG % ':1:key with spaces'
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with self.assertWarnsMessage(CacheKeyWarning, msg):
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await cache.aget_many(['key with spaces'])
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async def test_adelete(self):
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"""
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Cache deletion is transparently ignored on the dummy cache backend.
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"""
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await cache.aset_many({'key1': 'spam', 'key2': 'eggs'})
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self.assertIsNone(await cache.aget('key1'))
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self.assertIs(await cache.adelete('key1'), False)
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self.assertIsNone(await cache.aget('key1'))
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self.assertIsNone(await cache.aget('key2'))
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async def test_ahas_key(self):
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"""ahas_key() doesn't ever return True for the dummy cache backend."""
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await cache.aset('hello1', 'goodbye1')
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self.assertIs(await cache.ahas_key('hello1'), False)
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self.assertIs(await cache.ahas_key('goodbye1'), False)
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async def test_aincr(self):
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"""Dummy cache values can't be incremented."""
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await cache.aset('answer', 42)
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with self.assertRaises(ValueError):
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await cache.aincr('answer')
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with self.assertRaises(ValueError):
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await cache.aincr('does_not_exist')
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with self.assertRaises(ValueError):
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await cache.aincr('does_not_exist', -1)
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async def test_adecr(self):
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"""Dummy cache values can't be decremented."""
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await cache.aset('answer', 42)
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with self.assertRaises(ValueError):
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await cache.adecr('answer')
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with self.assertRaises(ValueError):
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await cache.adecr('does_not_exist')
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with self.assertRaises(ValueError):
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await cache.adecr('does_not_exist', -1)
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async def test_atouch(self):
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self.assertIs(await cache.atouch('key'), False)
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async def test_data_types(self):
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"""All data types are ignored equally by the dummy cache."""
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def f():
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return 42
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class C:
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def m(n):
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return 24
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data = {
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'string': 'this is a string',
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'int': 42,
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'list': [1, 2, 3, 4],
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'tuple': (1, 2, 3, 4),
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'dict': {'A': 1, 'B': 2},
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'function': f,
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'class': C,
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}
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await cache.aset('data', data)
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self.assertIsNone(await cache.aget('data'))
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async def test_expiration(self):
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"""Expiration has no effect on the dummy cache."""
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await cache.aset('expire1', 'very quickly', 1)
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await cache.aset('expire2', 'very quickly', 1)
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await cache.aset('expire3', 'very quickly', 1)
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await asyncio.sleep(2)
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self.assertIsNone(await cache.aget('expire1'))
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self.assertIs(await cache.aadd('expire2', 'new_value'), True)
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self.assertIsNone(await cache.aget('expire2'))
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self.assertIs(await cache.ahas_key('expire3'), False)
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async def test_unicode(self):
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"""Unicode values are ignored by the dummy cache."""
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tests = {
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'ascii': 'ascii_value',
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'unicode_ascii': 'Iñtërnâtiônàlizætiøn1',
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'Iñtërnâtiônàlizætiøn': 'Iñtërnâtiônàlizætiøn2',
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'ascii2': {'x': 1},
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}
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for key, value in tests.items():
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with self.subTest(key=key):
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await cache.aset(key, value)
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self.assertIsNone(await cache.aget(key))
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async def test_aset_many(self):
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"""aset_many() does nothing for the dummy cache backend."""
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self.assertEqual(await cache.aset_many({'a': 1, 'b': 2}), [])
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self.assertEqual(
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await cache.aset_many({'a': 1, 'b': 2}, timeout=2, version='1'),
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[],
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)
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async def test_aset_many_invalid_key(self):
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msg = KEY_ERRORS_WITH_MEMCACHED_MSG % ':1:key with spaces'
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with self.assertWarnsMessage(CacheKeyWarning, msg):
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await cache.aset_many({'key with spaces': 'foo'})
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async def test_adelete_many(self):
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"""adelete_many() does nothing for the dummy cache backend."""
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await cache.adelete_many(['a', 'b'])
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async def test_adelete_many_invalid_key(self):
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msg = KEY_ERRORS_WITH_MEMCACHED_MSG % ':1:key with spaces'
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with self.assertWarnsMessage(CacheKeyWarning, msg):
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await cache.adelete_many({'key with spaces': 'foo'})
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async def test_aclear(self):
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"""aclear() does nothing for the dummy cache backend."""
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await cache.aclear()
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async def test_aclose(self):
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"""aclose() does nothing for the dummy cache backend."""
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await cache.aclose()
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async def test_aincr_version(self):
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"""Dummy cache versions can't be incremented."""
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await cache.aset('answer', 42)
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with self.assertRaises(ValueError):
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await cache.aincr_version('answer')
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with self.assertRaises(ValueError):
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await cache.aincr_version('answer', version=2)
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with self.assertRaises(ValueError):
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await cache.aincr_version('does_not_exist')
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async def test_adecr_version(self):
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"""Dummy cache versions can't be decremented."""
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await cache.aset('answer', 42)
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with self.assertRaises(ValueError):
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await cache.adecr_version('answer')
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with self.assertRaises(ValueError):
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await cache.adecr_version('answer', version=2)
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with self.assertRaises(ValueError):
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await cache.adecr_version('does_not_exist')
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async def test_aget_or_set(self):
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self.assertEqual(await cache.aget_or_set('key', 'default'), 'default')
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self.assertIsNone(await cache.aget_or_set('key', None))
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async def test_aget_or_set_callable(self):
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def my_callable():
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return 'default'
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self.assertEqual(await cache.aget_or_set('key', my_callable), 'default')
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self.assertEqual(await cache.aget_or_set('key', my_callable()), 'default')
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