软测第三次作业
知识点:画出控制流图,并涉及计边覆盖,点覆盖,主路径
![](https://images2015.cnblogs.com/blog/1112414/201703/1112414-20170315164103870-1459053339.jpg)
2.若MAXPRIMES为2,n=5时质数有2,3,5质数数量超出,n=3时质数只有2,3质数数量合法。
3.t=(n=1)
4.点覆盖{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 }
边覆盖{(1,2),(2,3),(3,4),(4,5),(5,6),(5,7),(6,9),(9,5),(7,8),(7,2),(8,2),(2,11),(6,10),(10,11),(11,12),(12,13),(13,14),(14,12),(12,15)}
主路径覆盖 {(1,2,11,12,15),
(1,2,11,12,13,14,15),
(12,13,14),
(1,2,3,4,5,6,10,11,12,15),
(1,2,3,4,5,6,10,11,12,13,14,15),
(1,2,3,4,5,6,9,5,6,10,11,12,15) ,
(5,6,9),
(1,2,3,4,5,7,8,2,3,4,5,6,10,11,12,15),
(1,2,3,4,5,7,8,2,3,4,5,6,10,11,12,13,14,15),
(1,2,3,4,5,7,8,2,3,4,5,6,9,5,6,10,11,12,15),
(1,2,3,4,5,7,8,2,3,4,5,6,9,5,6,10,11,12,13,14,15),
(1,2,3,4,5,7,2,3,4,5,6,10,11,12,15),
(1,2,3,4,5,7,2,3,4,5,6,10,11,12,13,14,15),
(1,2,3,4,5,7,2,3,4,5,6,9,5,6,10,11,12,15),
(1,2,3,4,5,7,2,3,4,5,6,9,5,6,10,11,12,13,14,15),
(1,2,3,4,5,7,2,11,12,13,14,15),
(1,2,3,4,5,7,2,11,12,13,14,15),
(1,2,3,4,5,7,2,11,12,13,14,15),
(1,2,3,4,5,7,2,11,12,13,14,15),
(1,2,3,4,5,7,2,11,12,15),
(1,2,3,4,5,7,2,11,12,15),
(1,2,3,4,5,7,2,11,12,15),
(1,2,3,4,5,7,2,11,12,15),
(2,3,4,5,7,2),
(2,3,4,5,7,8,2)}
5.Junit测试和路径覆盖
package LKW; public class Primes { public static String printPrimes (int n) { int MAXPRIMES = 10; int curPrime; int numPrimes; boolean isPrime; int [] primes = new int [MAXPRIMES]; primes [0] = 2; numPrimes = 1; curPrime = 2; while (numPrimes < n) { curPrime++; isPrime = true; for (int i = 0; i <= numPrimes-1; i++) { if (curPrime%primes[i]==0) { isPrime = false; break; } } if (isPrime) { primes[numPrimes] = curPrime; numPrimes++; } } String s = null; for (int i = 0; i <= numPrimes-1; i++) { System.out.println ("Prime: " + primes[i]); s += primes[i]; } return s; } }
package LKW; import LKW.Primes; import static org.junit.Assert.*; import org.junit.Before; import org.junit.Test; public class PrimesTest { public Primes cal; @Before public void setUp() throws Exception { cal = new Primes(); } @Test public void test() { assertEquals("null235711", Primes.printPrimes(5)); } }
覆盖测试