Merged regressiontests and modeltests into the test root.

tests/model_inheritance_select_related/tests.py

@@ -0,0 +1,31 @@
+from __future__ import absolute_import
+
+from operator import attrgetter
+
+from django.test import TestCase
+
+from .models import Restaurant, Person
+
+
+class ModelInheritanceSelectRelatedTests(TestCase):
+    def test_inherited_select_related(self):
+        # Regression test for #7246
+        r1 = Restaurant.objects.create(
+            name="Nobu", serves_sushi=True, serves_steak=False
+        )
+        r2 = Restaurant.objects.create(
+            name="Craft", serves_sushi=False, serves_steak=True
+        )
+        p1 = Person.objects.create(name="John", favorite_restaurant=r1)
+        p2 = Person.objects.create(name="Jane", favorite_restaurant=r2)
+
+        self.assertQuerysetEqual(
+            Person.objects.order_by("name").select_related(), [
+                "Jane",
+                "John",
+            ],
+            attrgetter("name")
+        )
+
+        jane = Person.objects.order_by("name").select_related("favorite_restaurant")[0]
+        self.assertEqual(jane.favorite_restaurant.name, "Craft")