Essentially, this is a difference test: Given an XML document that you know is correct, does the application at run time generate the same thing?

本质上讲，这就是一种差异测试：假定一个XML文档是正确的，那么此应用程序在运行时是否会生成同样的东西？

youdao

As long as the class being tested behaves as expected, it won't notice the difference, and the unit test can check that the proper query was emitted.

只要正在被测试的类的行为如所期望的那样，它将不会注意到差异，而单元测试会检查是否发出了正确的查询。

youdao

As you can see in Listing 8, XMLUnit, in concert with XPath, provides a handy mechanism for validating precise aspects of an XML document rather than doing a large difference test.

如清单8所示，XMLUnit和XPath一起协作提供了可以准确验证XML文档的一种便捷机制，而不是进行大规模的差异测试。

youdao

Step inside and test it out - you'll really notice the difference if visiting on a balmy day.

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