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Added tests for double-pickling a QuerySet 

Refs #21102.
This commit is contained in:
Anssi Kääriäinen 2013-09-14 10:33:12 +03:00
parent c89d80e2cc
commit 74b91b3888
1 changed files with 12 additions and 0 deletions
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12
tests/queryset_pickle/tests.py
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@ -94,3 +94,15 @@ class PickleabilityTestCase(TestCase):
def test_specialized_queryset(self):
self.assert_pickles(Happening.objects.values('name'))
self.assert_pickles(Happening.objects.values('name').dates('when', 'year'))
def test_pickle_prefetch_related_idempotence(self):
g = Group.objects.create(name='foo')
groups = Group.objects.prefetch_related('event_set')
# First pickling
groups = pickle.loads(pickle.dumps(groups))
self.assertQuerysetEqual(groups, [g], lambda x: x)
# Second pickling
groups = pickle.loads(pickle.dumps(groups))
self.assertQuerysetEqual(groups, [g], lambda x: x)