当我完成新类的编写时，我将再次运行单元测试。

When I have completed writing the new class, then I run the unit tests again.

youdao

运行单元测试。

Run the unit test.

youdao

运行单元测试确保测试用例能继续找到并返回正确的对象。

Running unit tests assures that test case code will continue to find and return the correct objects.

youdao

And I end up going back and doing unit testing anyway, to try and figure out why it doesn't work. So over the years, I've just convinced myself I might as well start where I'm going to end up.

第一次从来不会正常运行,因此无论如何我还要回头去做单元测试,找找哪儿出错了，因此经过这么多年，我已经说服自己既然一定要做单元测试,那么还是一开始就做最好了。

麻省理工公开课 - 计算机科学及编程导论课程节选