当我进行测试驱动开发时，时间过得飞快。

When I do test-driven development, the hours fly by.

youdao

无论一个开发人员是在进行测试驱动的开发(TDD)还是在编写代码后创造单元测试，有一点是十分明显的，那就是单元测试有助于产出高质量、无缺陷的代码。

Whether a developer USES test-driven development (TDD) or creates unit tests after writing the code, the evidence is clear that unit tests help produce high-quality, bug-free code.

youdao

类中包含大量的方法，这是采用测试驱动开发进行构建的副作用。

The class consists of a large number of cohesive methods, which is a side-effect of using test-driven development in its construction.

youdao