Basic -- Ad hoc testing
Ad hoc testing is a commonly used term for software testing performed without planning and documentation.
The tests are intended to be run only once, unless a defect is discovered.
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Ad hoc testing is a part of exploratory testing, being the least formal of test methods.
In this view, ad hoc testing has been criticized because it isn't structured, but this can also be a strength: important things can be found quickly.
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It is performed with improvisation, the tester seeks to find bugs with any means that seem appropriate. It contrasts to regression testing that looks for a specific issue with detailed reproduction steps, and a clear expected result. Ad hoc testing is most often used as a complement to other types of testing.
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“Ad Hoc” 原意是指 “特定的，一次性的”；就是为了某一个特定目的进行的测试，就这一次，以后一般也不会重复测试或是尝试性测试某种情况，来检测是否有问题.
所以并非像许多测试人员所讲的是”猴子测试”，误理解了什么是Ad Hoc Testing；正确的测试应是在测试过程中， “ad hoc”测试可以用来衡量当前测试用例的完备性，设计某些特定的，一次性的测试用例，去检查在现有测试用例之外的问题，假如测试时，未发现什么问题，说明现有的测试用例是比较完备的，反之，则不是。
