Junit安装和使用

 1 package net.chenyuhong.junitTest;
 2 /**   
 3  * @Title: Triangle.java 
 4  * @Package net.chenyuhong.junitTest 
 5  * @Description: 测试三角形是否为等边等腰或者是不等边的
 6  * @author cyh tjuchenheng@163.com  
 7  * @date 2017-3-10 上午11:13:48 
 8  * @version V1.0   
 9  */
10 public class Triangle {
11 
12      public static String classify(int a,int b,int c){
13          
14          if(!((a + b > c) && (a + c > b) && (b + c > a))){
15              return "非三角形";
16          }else if(a == b && a == c && b == c){
17              return "等边三角形";
18          }else if(a != b &&  a != c && b != c){
19              return "不等边三角形";
20          }else{
21              return "等腰三角形";
22          }
23          
24      }
25     
26 }

package net.chenyuhong.junitTest;

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;

/**   
 * @Title: TriangleTest.java 
 * @Package net.chenyuhong.junitTest 
 * @Description: 三角形测试类
 * @author cyh tjuchenheng@163.com  
 * @date 2017-3-10 下午8:14:09 
 * @version V1.0   
 */
//参数化运行器
@RunWith(Parameterized.class)
public class TriangleTest {
    private int a,b,c;
    private String classification;
    

    @Before
    public void setUp() throws Exception {
    }
    
    public TriangleTest(int a,int b,int c, String classification){
        this.a = a;
        this.b = b;
        this.c = c;
        this.classification = classification;
    }
    
    @Parameters
    public static Collection<Object[]> getData(){
        return Arrays.asList(new Object[][]{
                {1,2,3,"非三角形"},
                {2,2,2,"等边三角形"},
                {0,0,0,"非三角形"},
                {4,3,5,"不等边三角形"},
                {3,3,4,"等腰三角形"},
                {4,4,5,"等腰三角形"},
                {1,0,0,"非三角形"},
                {1,1,1,"等边三角形"},
                
        });
    }

    @Test
    public void testClassify() {
        assertEquals(this.classification, Triangle.classify(a, b, c));
    }

}