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Refs #15844 -- Added tests for multi-table inheritance related object filtering efficiency. 

Fixed in 97774429ae.
This commit is contained in:
Tim Graham 2015-10-02 19:53:50 -04:00
parent 41ed6338a4
commit fa2e1e633a
1 changed files with 19 additions and 0 deletions
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19
tests/model_inheritance_regress/tests.py
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@ -493,3 +493,22 @@ class ModelInheritanceTest(TestCase):
jane = Supplier.objects.order_by("name").select_related("restaurant")[0] jane = Supplier.objects.order_by("name").select_related("restaurant")[0]
self.assertEqual(jane.restaurant.name, "Craft") self.assertEqual(jane.restaurant.name, "Craft")
def test_related_filtering_query_efficiency_ticket_15844(self):
r = Restaurant.objects.create(
name="Guido's House of Pasta",
address='944 W. Fullerton',
serves_hot_dogs=True,
serves_pizza=False,
)
s = Supplier.objects.create(restaurant=r)
with self.assertNumQueries(1):
self.assertQuerysetEqual(
Supplier.objects.filter(restaurant=r),
[s], lambda x: x,
)
with self.assertNumQueries(1):
self.assertQuerysetEqual(
r.supplier_set.all(),
[s], lambda x: x,
)