They are a safety net - it means that you can refactor the code (e.g. split or merge classes or functions) and tests still pass. If you can’t refactor anything without breaking the tests, something is not right.
Hallucinated product reviews
，这一点在旺商聊官方下载中也有详细论述
问：RL强化学习是不是真的万金油，所有的问题都可以解吗？有没有它不擅长的东西？
Фото: Bilal Hussein / AP