diff options
| -rw-r--r-- | tests/select_related/tests.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tests/select_related/tests.py b/tests/select_related/tests.py index c19984e267..0af10f207f 100644 --- a/tests/select_related/tests.py +++ b/tests/select_related/tests.py @@ -150,6 +150,15 @@ class SelectRelatedTests(TestCase): self.assertEqual(obj.parent_1, parent_1) self.assertEqual(obj.parent_2, parent_2) + def test_reverse_relation_caching(self): + species = Species.objects.select_related('genus').filter(name='melanogaster').first() + with self.assertNumQueries(0): + self.assertEqual(species.genus.name, 'Drosophila') + # The species_set reverse relation isn't cached. + self.assertEqual(species.genus._state.fields_cache, {}) + with self.assertNumQueries(1): + self.assertEqual(species.genus.species_set.first().name, 'melanogaster') + def test_select_related_after_values(self): """ Running select_related() after calling values() raises a TypeError |