以下关于结构测试用例设计的叙述中,不正确的是()。
- A.判定覆盖使每个判定的每种可能结果至少出现一次
- B.语句覆盖使程序每条语句至少被执行一次
- C.条件覆盖使程序中每个判定的每个条件的所有可能结果至少出现一次
- D.在语句覆盖、条件覆盖、判定覆盖、路径覆盖测试中,判定覆盖规则最强
正确答案及解析
正确答案
解析
本题考查的是关于结构测试用例设计方面的基础知识。在结构测试中,根据测试目标的不同,可分为语句覆盖、条件覆盖、判定覆盖(即分支覆盖)、路径覆盖等。判定覆盖的含义是设计若干测试用例,运行被测程序,使每个判定的每种可能结果至少出现了次。语句覆盖的含义是设计若干测试用例,运行被测程序,使每条语句至少被执行一次条件覆盖的含义是设计若干测试用例,运行被测程序,使得程序中每个判定的每个条件的可能取值至少经历一次。路径覆盖的含义是设计若干测试用例,运行被测程序,使程序中所有可能的路径被覆盖到。结构测试的语句覆盖、条件覆盖、判定覆盖及路径覆盖中,路径覆盖是最强覆盖原则。
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