def test_model_instance_deserialize(self): items = [ContentType.objects.all()[0]] payload = '''{"data":{}}''' view = MockResourceView(items) view.request = view.factory.post('/', **{'wsgi.input':FakePayload(payload), 'CONTENT_LENGTH':len(payload)}) adaptor = CollectionJSON(view) data = adaptor.deserialize(form_class=view.get_form_class())