在学习了基本的软件测试技术之后，我们终于要进行最简单的实战演练了。第一次上机，来看看我们是如何安装Junit，Hamcrest和Eclemma的。

一.安装Junit(4.12)和Hamcrest(1.3)

1.选中新建的项目，右键->Propertise->Java Build Path->Add External JARs

2.然后选中之前下好的junit-4.12.jar与hamcrest-core-1.3.rc2.jar

3.点击OK即引入成功

二.安装Eclemma

1.将Eclemma压缩包解压到eclipse下的dropins文件夹

2.打开eclipse，点击help->install new software->add->local->选择你下载的eclemma，点OK安装，然后提示重启，重启后安装完成

3.重启后安装完成

三.三角形问题及其测试

1.主要代码(Triangle.java:)

1 packagetriangle;2 public classTriangle {3 public static boolean isTriangle (int a, int b, intc){4 if ((a+b)>c&&(a+c)>b&&(b+c)>a){//the three number can constitute a triangle

5 return true;6}7 else{8 return false;9}10}11

12 public static boolean isEquilateral (int a, int b, intc){13 if(isTriangle(a,b,c)){14 if ( a == b && b ==c ){15 return true;16}17 else{18 return false;19}20}21 else{22 return false;23}24}25

26 public static boolean isIsosceles (int a, int b, intc){27 if(isTriangle(a,b,c)){28 if ( a == b || a == c || b ==c ){29 return true;30}31 else{32 return false;33}34}35 else{36 return false;37}38}39

40 public static boolean isRightTriangle (int a, int b, intc){41 if(isTriangle(a,b,c)){42 if ( a*a==b*b+c*c||b*b==a*a+c*c||c*c==a*a+b*b ){43 return true;44}45 else{46 return false;47}48}49 else{50 return false;51}52}53

54 public static void Triangle (int a, int b, intc) {55 if (isTriangle(a,b,c)){ //the three number can constitute a triangle

56 if( isEquilateral(a,b,c) ){57 System.out.println ("The triangle is a equilateral!");58}59 else if( isIsosceles(a,b,c) ){60 if(isRightTriangle(a,b,c)){61 System.out.println ("The triangle is a isosceles right triangle!");62}63 else{64 System.out.println ("The triangle is a isosceles!");65}66}67 else if(isRightTriangle(a,b,c)){68 System.out.println ("The triangle is a Right triangle!");69}70 else{71 System.out.println ("The triangle is a scalene!");72}73}74 else{75 System.out.println ("Can't constitute a triangle!");76}77 } //end Triangle

78 }

2.测试代码：

TriangleTest.java(全为正确时):

1 packagetriangle;2 import static org.junit.Assert.*;3 importorg.junit.Before;4 importorg.junit.Test;5 public classTriangleTest {6 privateTriangle tri;7@Before8 public void setUp() throwsException {9 tri = newTriangle();10}11@Test12 public voidtestIsTriangle() {13 assertEquals("判断三角形模块异常",true,tri.isTriangle(3, 4, 5));14}15@Test16 public voidtestIsEquilateral() {17 assertEquals("判断等边三角形模块异常",true,tri.isEquilateral(3, 3, 3));18}19@Test20 public voidtestIsIsosceles() {21 assertEquals("判断等腰三角形模块异常",true,tri.isIsosceles(3, 3, 4));22}23@Test24 public voidtestIsRightTriangle() {25 assertEquals("判断直角三角形模块异常",true,tri.isRightTriangle(3, 4, 5));26}27@Test28 public voidtestTriangle() {29 tri.Triangle(3, 4, 5);30}31 }

TriangleTest.java(有错误时)：

1 packagetriangle;2 import static org.junit.Assert.*;3 importorg.junit.Before;4 importorg.junit.Test;5

6 public classTriangleTest {7 privateTriangle tri;8@Before9 public void setUp() throwsException {10 tri = newTriangle();11}12

13@Test14 public voidtestIsTriangle() {15 assertEquals("判断三角形模块异常",true,tri.isTriangle(1, 1, 5));16}17

18@Test19 public voidtestIsEquilateral() {20 assertEquals("判断等边三角形模块异常",true,tri.isEquilateral(2, 3, 3));21}22

23@Test24 public voidtestIsIsosceles() {25 assertEquals("判断等腰三角形模块异常",true,tri.isIsosceles(3, 3, 4));26}27

28@Test29 public voidtestIsRightTriangle() {30 assertEquals("判断直角三角形模块异常",true,tri.isRightTriangle(3, 3, 5));31}32

33@Test34 public voidtestTriangle() {35 tri.Triangle(3, 3, 5);36}37 }

3.用Junit测试：

创建Junit测试用例：

测试结果：

覆盖率：