标签:
(a)为printPrime( )方法画控制流图。
此图我用的Word完成,非常累,后来想起我还有OmniGraffle但是为时已晚,图如下:
(b)考虑测试用例t1=(n=3)和t2=(n=5)。即使这些测试用例游历printPrimes()方法中相同的主路径,他们不一定找出相同的错误。设计一个简单的错误,使得t2比t1更容易发现。
答:如果n值大,t2=(n=5)就容易出现数据越界的错误。
(c)针对printPrimes(),找到一个测试用例,使得响应的测试路径访问连接while语句开始到for语句的边,而不用通过while循环体。
答:找到测试用例 n = 1,不满足numPrimes < n的条件,使得响应的测试路径访问连接while语句开始到for语句的边,而不用通过while循环体。
(d) 针对printPrimes()的图例列举每个节点覆盖,边覆盖和主路径覆盖的测试需求。
答:1)节点覆盖: TR = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}
2 边覆盖: TR = {(1,2),(2,3),(2,12),(3,4),(4,5),(5,6),(6,7),(6,8),(7,5),(8,9),(5,9),(9,10),(9,11),(10,11),(11,2),(12,13),(13,14),(14,15),(15,13),(13,16)}
3)主路径覆盖:
TR = {(1,2,3,4,5,6,7),
(1,2,3,4,5,6,8,9,10,11),
(1,2,3,4,5,6,8,9,11),
(1,2,3,4,5,9,10,11),
(1,2,3,4,5,9,11),
(1,2,12,13,14,15),
(1,2,12,16),
(2,3,4,5,6,8,9,10,11,2),
(2,3,4,5,6,8,9,11,2),
(2,3,4,5,9,10,11,2),
(2,3,4,5,9,11,2),
(3,4,5,6,8,9,10,11,2,12,13,14,15),
(3,4,5,6,8,9,11,2,12,13,14,15),
(3,4,5,6,8,9,10,11,2,12,13,16),
(3,4,5,6,8,9,11,2,12,13,16),
(3,4,5,9,10,11,2,12,13,14,15),
(3,4,5,9,11,2,12,13,14,15),
(3,4,5,9,10,11,2,12,13,16),
(3,4,5,9,11,2,12,13,16),
(5,6,7,5),
(6,7,5,9,10,11,2,12,13,14,15),
(6,7,5,9,11,2,12,13,14,15),
(6,7,5,9,10,11,2,12,13,16),
(6,7,5,9,11,2,12,13,16),
(13,14,15,13),
(14,15,13,16),
}
软件测试作业随笔之三:printPrime( )课后问题(a)(b)(c)(d)
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原文地址:http://www.cnblogs.com/MelodyWang/p/5337039.html