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Diffstat (limited to 'tests/model_forms')
| -rw-r--r-- | tests/model_forms/test_modelchoicefield.py | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tests/model_forms/test_modelchoicefield.py b/tests/model_forms/test_modelchoicefield.py index 6b0f00cf7f..733175823f 100644 --- a/tests/model_forms/test_modelchoicefield.py +++ b/tests/model_forms/test_modelchoicefield.py @@ -257,6 +257,17 @@ class ModelChoiceFieldTests(TestCase): (self.c3.pk, 'Third'), ]) + def test_queryset_result_cache_is_reused(self): + f = forms.ModelChoiceField(Category.objects.all()) + with self.assertNumQueries(1): + # list() calls __len__() and __iter__(); no duplicate queries. + self.assertEqual(list(f.choices), [ + ('', '---------'), + (self.c1.pk, 'Entertainment'), + (self.c2.pk, 'A test'), + (self.c3.pk, 'Third'), + ]) + def test_num_queries(self): """ Widgets that render multiple subwidgets shouldn't make more than one |