软件测试作业三—— 上机实验判断三角形的类型

a) Description of triangle problem:

Function triangle takes three integers a,b,c which are length of triangle sides; 

calculates whether the triangle is equilateral, isosceles, or scalene. 

 

1.按照要求导入junit和hamcrest.all包到java bulid path里；

2.在help -- install from site 输入http://update.eclemma.org即为安装eclemma插件;

3.创建目录如下：

4. triangle.java

package cn.lxd.tju;

public class triangle {
    private int a;
    private int b;
    private int c;
    public triangle(){
    
    }
    
    public int judge(int i , int j , int p){

        //如果是等边三角形，则返回1
        if(i == j && j == p){
            return 1 ;
        }
        //如果是等腰三角形，则返回2
        else if(i == j || j == p || i == p){
            return 2;
        }
        //如果是斜角三角形，则返回3
        else{
            return 3;
        }
    }
}

5. test.java

package cn.lxd.tju;

import static org.junit.Assert.*;
import java.util.Arrays;
import java.util.Collection;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
public class test {
    private triangle mytri;
    
    private int input1;
    private int input2;
    private int input3;
    private int expected;
    
    public test(int a, int b, int c, int d){
        this.input1 = a;
        this.input2 = b;
        this.input3 = c;
        this.expected = d;
    }
    
    @Before
    public void setUp(){
        mytri = new triangle();
    }
    
    @Parameters
    public static Collection<Object[]> getData(){
        return Arrays.asList(new Object[][]{
                {3,4,5,3},
                {3,3,2,2},
                {9,9,9,1}
        });
    }
    
    @Test
    public void JudgeTri(){
        assertEquals(this.expected, mytri.judge(input1, input2, input3));
    }
}

6.测试结果如下：