def METHOD_NAME(self):
    self.workflow.do_engine_steps()
    json = self.serializer.serialize_json(self.workflow)
    wf2 = self.serializer.deserialize_json(json)
    self.assertIsNotNone(self.workflow.last_task)
    self.assertIsNotNone(wf2.last_task)
    self._compare_workflows(self.workflow, wf2)