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Fixed #12982 -- Added a get_or_set() method to the BaseCache backend.

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This commit is contained in:
Berker Peksag 2014-11-23 20:33:07 +02:00
parent a52cd407b8
commit 34fb909180
4 changed files with 64 additions and 1 deletions
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22
tests/cache/tests.py vendored
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@ -884,6 +884,28 @@ class BaseCacheTests(object):
with self.assertRaises(pickle.PickleError):
cache.set('unpickable', Unpickable())
def test_get_or_set(self):
self.assertIsNone(cache.get('projector'))
self.assertEqual(cache.get_or_set('projector', 42), 42)
self.assertEqual(cache.get('projector'), 42)
def test_get_or_set_callable(self):
def my_callable():
return 'value'
self.assertEqual(cache.get_or_set('mykey', my_callable), 'value')
def test_get_or_set_version(self):
cache.get_or_set('brian', 1979, version=2)
with self.assertRaisesMessage(ValueError, 'You need to specify a value.'):
cache.get_or_set('brian')
with self.assertRaisesMessage(ValueError, 'You need to specify a value.'):
cache.get_or_set('brian', version=1)
self.assertIsNone(cache.get('brian', version=1))
self.assertEqual(cache.get_or_set('brian', 42, version=1), 42)
self.assertEqual(cache.get_or_set('brian', 1979, version=2), 1979)
self.assertIsNone(cache.get('brian', version=3))
@override_settings(CACHES=caches_setting_for_tests(
BACKEND='django.core.cache.backends.db.DatabaseCache',