Tests are executabledocumentation. Unlike normal documentation, they never lie, because everyone runs them and they always pass.
测试是可以执行的文档与普通文档不同,测试从不说谎,因为人人都运行还总得通过。
2
These tests and the interrelationships they represent provide useful executabledocumentation for those responsible for operating services.
这些测试及它们所代表的相互关联,为那些负责运营服务的人提供了有用的可执行档案。
3
Not only are the contracts executable, they are also part of the user-visible code and documentation, information that would be more obscure if captured in separate aspects.