Python Can'；在等待表达式中使用mocker.patch.object时，不要使用MagicMock

我有一个模拟非异步函数的fixture

@pytest.fixture
def publisher_mock(mocker):
    yield mocker.patch.object(publisher.publisher, 'publish_msgpack')


def publish_msgpack(self, topic, data):
    payload = msgpack_datetime.dumps(data)
    self.publish(topic, payload, format='msgpack')

我想为异步版本制作相同的夹具

async def publish_msgpack(self, topic, data):
    payload = msgpack_datetime.dumps(data)
    await self.publish(topic, payload, format='msgpack')

我找到的所有解决方案（特别是这个：）最终都运行到：RuntimeError:事件循环已关闭