欢迎访问 生活随笔!

生活随笔

当前位置: 首页 > 编程资源 > 编程问答 >内容正文

编程问答

软件测试之三——路径覆盖

发布时间:2025/5/22 编程问答 47 豆豆
生活随笔 收集整理的这篇文章主要介绍了 软件测试之三——路径覆盖 小编觉得挺不错的,现在分享给大家,帮大家做个参考.

  一、问题:

  Use the following method printPrimes() for questions a–d.

  二、代码

/******************************************************* * Finds and prints n prime integers * Jeff Offutt, Spring 2003 ******************************************************/ public static void printPrimes (int n) { int curPrime; // Value currently considered for primeness int numPrimes; // Number of primes found so far. boolean isPrime; // Is curPrime prime? int [] primes = new int [MAXPRIMES]; // The list of prime numbers. // Initialize 2 into the list of primes. primes [0] = 2; numPrimes = 1; curPrime = 2; while (numPrimes < n) { curPrime++; // next number to consider ... isPrime = true; for (int i = 0; i <= numPrimes-1; i++) { // for each previous prime. if (isDivisable(primes[i],curPrime)) { // Found a divisor, curPrime is not prime. isPrime = false; break; // out of loop through primes. } } if (isPrime) { // save it! primes[numPrimes] = curPrime; numPrimes++; } } // End while // Print all the primes out. for (int i = 0; i <= numPrimes-1; i++) { System.out.println ("Prime: " + primes[i]); } } // end printPrimes

  三、解答

  a、数据流图如下:

 

  b、数组越界时可能会发生错误

  c、不经过while循环,使得 初始条件n=1

  d、点覆盖

  {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}

  边覆盖

  {(1.2),(2,3),(3,4),(4,5),(5,6),(6,7),(7,5),(6,8),(8,9),(9,10),(9,11),(10,2),(11,2),(2,12),(12,13),(13,14),(14,15),(15,13),(13,16)}

  主路径覆盖

  {(1,2,3,4,5,6,7),

  (1,2,3,4,5,9,10),

  (1,2,3,4,5,9,11),

  (1,2,3,4,5,6,8,9,10),

  (1,2,3,4,5,6,8,9,11),

  (1,2,12,13,16),

  (1,2,12,13,14,15),

  (3,4,5,6,8,9,10,2,12,13,14,15),

  (3,4,5,6,8,9,10,2,12,13,16),

  (3,4,5,9,10,2,12,13,14,15),

  (3,4,5,9,11,2,12,13,14,15),

  (3,4,5,9,10,2,12,13,16),

  (3,4,5,9,10,2,12,13,16),

  (3,4,5,6,8,9,11,2,12,13,14,15),

  (3,4,5,6,8,9,11,2,12,13,16),

  (6,7,5,9,10,2,12,13,14,15),

  (6,7,5,9,10,2,12,13,16),

  (6,7,5,9,11,2,12,13,14,15),

  (6,7,5,9,11,2,12,13,16),

  (14,15,13,16),

  (13,14,15,13),

  (5,6,7,5),

  (2,3,4,5,6,8,9,10,2),

  (2,3,4,5,6,8,9,11,2),

  (2,3,4,5,9,10,2)

  (2,3,4,5,9,11,2)}

 

  D、上次上机实验的判断三角形的程序

  因为三角形的种类有三种,外加一种判断输入参数是否为正整数的返回值,因此主路径测试需求有四个,测试四组用例(2,2,2),(2,3,3),(2,3,4),(-2,5,-6)。

即可完整覆盖,覆盖率达到100%;

 

转载于:https://www.cnblogs.com/yangmutong/p/5335299.html

总结

以上是生活随笔为你收集整理的软件测试之三——路径覆盖的全部内容,希望文章能够帮你解决所遇到的问题。

如果觉得生活随笔网站内容还不错,欢迎将生活随笔推荐给好友。