Save objects before assigning them in InheritedModelSerializationTests; Django…

Save objects before assigning them in InheritedModelSerializationTests; Django 1.8 now throws an error when assigning unsaved objects to Foreign Key, GenericForeignKey, and OneToOneFields

tests/test_multitable_inheritance.py

@@ -48,8 +48,8 @@ class InheritedModelSerializationTests(TestCase):
         Assert that a model with a onetoone field that is the primary key is
         not treated like a derived model
         """
-        parent = ParentModel(name1='parent name')
-        associate = AssociatedModel(name='hello', ref=parent)
+        parent = ParentModel.objects.create(name1='parent name')
+        associate = AssociatedModel.objects.create(name='hello', ref=parent)
         serializer = AssociatedModelSerializer(associate)
         self.assertEqual(set(serializer.data.keys()),
                          set(['name', 'ref']))