单元测试的隔离概念有无数的模拟对象库作后盾，这些库便利了将一个特定的对象从其外部依赖项中隔离出来。

The isolated notion of unit testing is behind the myriad mock-object libraries that facilitate isolating a particular object from its external dependencies.

youdao

单元测试的隔离概念有无数的模拟对象库作后盾，这些库便利了将一个特定的对象从其外部依赖项中隔离出来。

The isolated notion of unit testing is behind the myriad mock-object libraries that facilitate isolating a particular object from its external dependencies.

youdao