Yes - Unit Testing is definitely worth the effort but you should know it's not a silver bullet. Unit Testing is work and you will have to work to keep the test updated and relevant as code changes but the value offered is worth the effort you have to put in. The ability to refactor with impunity is a huge benefit as you can always validate functionality by running your tests after any change code. The trick is to not get too hung up on exactly the unit-of-work you're testing or how you are scaffolding test requirements and when a unit-test is really a functional test, etc. People will argue about this stuff for hours on end and the reality is that any testing you do as your write code is better than not doing it. The other axiom is about quality and not quantity - I have seen code-bases with 1000's of test that are essentially meaningless as the rest don't really test anything useful or anything domain specific like business rules, etc of the particular domain. I've also seen codebases with 30% code coverage but the tests were relevant, meaningful and really awesome as they tested the core functionality of the code it was written for and expressed how the code should be used.

在探索新的框架或代码库时，我最喜欢的一个技巧是为“它”编写单元测试，以发现事物是如何工作的。这是一个学习新事物的好方法，而不是阅读枯燥的文档:)

我曾多次尝试单元测试，我仍然相信，考虑到我的情况，这是值得的。

我开发网站，其中很多逻辑涉及在数据库中创建、检索或更新数据。当我为了单元测试的目的而尝试“模拟”数据库时，它变得非常混乱，似乎有点毫无意义。

当我围绕业务逻辑编写单元测试时，从长远来看它从未真正帮助过我。因为我主要独自从事项目工作，我倾向于直观地知道哪些代码区域可能会受到我所从事的工作的影响，并且我手动测试这些区域。我希望尽可能快地向客户交付解决方案，而单元测试通常看起来是浪费时间。我列出了手动测试，并亲自完成它们，并在执行过程中标记它们。

我可以看到，当一个开发团队在一个项目中工作并互相更新代码时，这可能是有益的，但即使这样，我认为如果开发人员具有高质量，良好的沟通和编写良好的代码通常就足够了。

Yes - Unit Testing is definitely worth the effort but you should know it's not a silver bullet. Unit Testing is work and you will have to work to keep the test updated and relevant as code changes but the value offered is worth the effort you have to put in. The ability to refactor with impunity is a huge benefit as you can always validate functionality by running your tests after any change code. The trick is to not get too hung up on exactly the unit-of-work you're testing or how you are scaffolding test requirements and when a unit-test is really a functional test, etc. People will argue about this stuff for hours on end and the reality is that any testing you do as your write code is better than not doing it. The other axiom is about quality and not quantity - I have seen code-bases with 1000's of test that are essentially meaningless as the rest don't really test anything useful or anything domain specific like business rules, etc of the particular domain. I've also seen codebases with 30% code coverage but the tests were relevant, meaningful and really awesome as they tested the core functionality of the code it was written for and expressed how the code should be used.

在探索新的框架或代码库时，我最喜欢的一个技巧是为“它”编写单元测试，以发现事物是如何工作的。这是一个学习新事物的好方法，而不是阅读枯燥的文档:)

关于这个话题，我写了一篇很大的博客文章。我发现单靠单元测试是不值得的，而且通常在截止日期临近时就会被削减。

与其从“测试后验证”的角度来讨论单元测试，我们应该看看在实现之前编写规范/测试/想法时所发现的真正价值。

这个简单的想法改变了我写软件的方式，我不会回到“旧的”方式。

测试优先开发如何改变了我的生活

关于单元测试要记住的一件事是，它对开发人员来说是一种安慰。

相反，功能测试是针对用户的:无论何时添加功能测试，您都是在测试用户将看到的东西。当您添加单元测试时，您只是让开发人员的生活更轻松。在这方面有点奢侈。

当您必须在编写单元或功能测试之间做出选择时，请记住这种二分法。

如果你正在使用NUnit，一个简单而有效的演示就是在他们面前运行NUnit自己的测试套件。看到一个真正的测试套件对代码库进行测试，胜过千言万语……