Contract Test

最新推荐文章于 2025-07-06 10:41:50 发布

原创最新推荐文章于 2025-07-06 10:41:50 发布 · 1.3k 阅读

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文中提到Contract Test能解决告知他人正确使用基类的问题。通常，合约测试用例类是抽象的，可通过扩展它并实现创建方法来驱动实现。作者认为合约测试比书面文档更好，还提及找到一篇相关博客。

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Diaspar wrote in Contract Test:
Contract Tests explain how a class should extend a superclass or implement and interface, so that I don't have to read a bunch of prose to figure out how to do that.

一直困扰我的关于如何告诉其他人正确使用我写的基类的问题，通过contract test即可以较好的解决:

Typically, a contract test case class is abstract, then I extend it and implement a creation method or two to return instances of my own implementation of the given interface. That gives me a standard battery of tests I can run to drive my implementation. It might not be perfect (I'll have n failing tests to start) but I prefer it to documentation written in prose.

So if you're delivering something you want me to extend and I need to follow more than three rules, please deliver me some contract tests.

又google了一下，找到Joe Walnes一篇相关的Blog:Design by contract: testing implementations of interfaces