Ticket #29387: 29387-regression-test.patch

tests/generic_relations/tests.py

@@ -570 +570 @@
         newrel = ConcreteRelatedModel.objects.get(pk=newrel.pk)
         self.assertEqual(base, newrel.bases.get())
 
+    def test_deletion_cascade(self):
+        """
+        Regression for #29387: deletion does not cascase for proxy models.
+
+        !!!: PASSES — cannot reproduce.
+        """
+        # Concrete case
+        concrete_obj = ConcreteRelatedModel.objects.create()
+        base = ForProxyModelModel.objects.create(obj=concrete_obj)
+
+        self.assertTrue(ForProxyModelModel.objects.filter(id=base.id).exists())
+        concrete_obj.delete()
+        self.assertFalse(ForProxyModelModel.objects.filter(id=base.id).exists())
+
+        # Proxy case — should fail (but does not)
+        proxy_obj = ProxyRelatedModel.objects.create()
+        base = ForProxyModelModel.objects.create(obj=proxy_obj)
+
+        self.assertTrue(ForProxyModelModel.objects.filter(id=base.id).exists())
+        proxy_obj.delete()
+        self.assertFalse(ForProxyModelModel.objects.filter(id=base.id).exists())
+
 
 class TestInitWithNoneArgument(SimpleTestCase):