Test coverage tools are generally easy to add into an established unit testing process, and the results can be reassuring.

测试覆盖工具通常可以很容易地添加到确定的单元测试过程中，而且结果可靠。

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Code coverage tools let you expand the unit testing mantra of "clean and green" to "clean, green, and covered," with real benefits to the effectiveness of your unit tests.

代码覆盖工具使您可以将单元测试的符咒从“干净，绿色”上升为“干净，绿色，并且已覆盖”，这更有利于单元测试的有效性。

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Unit testing isn't the only scenario where code coverage tools are useful, but it's certainly a major use case.

单元测试并不是惟一用得着代码覆盖工具的地方，但是代码覆盖工具主要还是用在这里。

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