实验五 单元测试

  //Test2.java
  1 import java.util.Random;
  2 import java.util.Scanner;
  3 public class Test2 {
  4     private static Scanner sc;
  5     public static void main(String[] args) {
  6         System.out.println("输入测试题数目：");
  7         sc = new Scanner(System.in);
  8         int number=sc.nextInt();
  9         double right = 0;
 10         double wrong = 0;
 11         for (int i = 0; i < number; i++) {
 12             System.out.println("第"+(i+1)+"道题,请在下方输入答案：");
 13             double op1=(int)(Math.random()*10);
 14             double op2=(int)(Math.random()*10);
 15             Random r3 = new Random();
 16             int m = r3.nextInt(4);
 17             char[] chs = {'+','-','*','/'};
 18             String Operator = String.valueOf(chs[m]);
 19             //生成题目
 20             if(Operator.equals("+")){
 21                 System.out.println(op1+"+"+op2+"=");
 22                 boolean b = add(op1,op2);
 23                 if(b == true){
 24                     right++;System.out.println("right! ");
 25                 }
 26                 else{
 27                     wrong++;System.out.println("no ");
 28                     System.out.println("right answer: "+(op1+op2));
 29                 }
 30             }
 31             else if(Operator.equals("-")){
 32                 System.out.println(op1+"-"+op2+"=");
 33                 boolean b =minus(op1,op2);
 34                 if(b == true){
 35                     right++;System.out.println("right! ");
 36                 }
 37                 else{
 38                     wrong++;System.out.println("no ");
 39                     System.out.println("right answer: "+(op1-op2));
 40                 }
 41             }
 42             else if(Operator.equals("*")){
 43                 System.out.println(op1+"×"+op2+"=");
 44                 boolean b =times(op1,op2);
 45                 if(b == true){
 46                     right++;System.out.println("right! ");
 47                 }
 48                 else{
 49                     wrong++;System.out.println("no ");
 50                     System.out.println("right answer: "+(op1*op2));
 51                 }
 52             }
 53             else{
 54                 System.out.println(op1+"÷"+op2+"=");
 55                 boolean b =Div(op1,op2);
 56                 if(b == true){
 57                     right++;System.out.println("right! ");
 58                 }else{
 59                     wrong++;System.out.println("no ");
 60                     System.out.println("right answer: "+op1/op2);
 61                 }
 62             }
 63         }
 64         System.out.println("做对了"+right+"道题.");
 65         System.out.println("做错了"+wrong+"道题.");
 66         System.out.println("正确率为"+(right/(wrong+right))*100+"%");
 67     }
 68     static boolean add(double x,double y) {
 69         Scanner sc = new Scanner(System.in);
 70         double num1 = sc.nextDouble();
 71         double result = x + y;
 72         if(num1 == result){
 73             return true;
 74         }else{
 75             return false;
 76         }
 77     }
 78     static boolean minus(double x,double y) {
 79         Scanner sc = new Scanner(System.in);
 80         double num1 = sc.nextDouble();
 81         double result = x - y;
 82         if(num1 == result){
 83             return true;
 84         }else{
 85             return false;
 86         }
 87     }
 88     static boolean times (double x,double y) {
 89         Scanner sc = new Scanner(System.in);
 90         double num1 = sc.nextDouble();
 91         double result = x * y;
 92         if(num1 == result){
 93             return true;
 94         }else{
 95             return false;
 96         }
 97     }
 98     static boolean Div(double x,double y) {
 99         Scanner sc = new Scanner(System.in);
100         double num1 = sc.nextDouble();
101         double result =x/y;
102         if(num1 == result){
103             return true;
104         }else{
105             return false;
106         }
107     }
108 }

 1 //Test2Test.java
 2 import static org.junit.Assert.*;
 3 
 4 import java.util.Scanner;
 5 import org.junit.After;
 6 import org.junit.Before;
 7 import org.junit.Test;
 8 
 9 public  class Test2Test {
10     public static Test2 Test2_Test = new Test2();
11     @Before
12     public void setUp() throws Exception {
13     }
14  
15     @After
16     public void tearDown() throws Exception {
17     }
18     
19     @Test
20     public void testadd() {
21         boolean ans = true;
22         boolean val;
23         double num1 = 32;
24         double x=10,y=22;
25         val = Test2_Test.add(x,y);
26         assertEquals("加法错误！",ans,val);    
27     }
28     @Test
29     public void testminus() {
30         boolean ans = true;
31         boolean val;
32         double num1 = 16;
33         double x=44,y=28;
34         val = Test2_Test.minus(x,y);
35         assertEquals("减法错误！",ans,val);        
36     }
37     @Test
38     public void testtimes() {
39         boolean ans = true;
40         boolean val;
41         double num1 = 72;
42         double x=12,y=6;
43         val = Test2_Test.times(x,y);
44         assertEquals("乘法错误！",ans,val);    
45         
46     }
47     @Test
48     public void testDiv() {
49         boolean ans = true;
50         boolean val;
51         double num1 = 11;
52         double x=33,y=3;
53         val = Test2_Test.Div(x,y);
54         assertEquals("除法错误！",ans,val);    
55         
56     }
57 }

 1 //TestRunner.java
 2 import org.junit.runner.JUnitCore;
 3 import org.junit.runner.Result;
 4 import org.junit.runner.notification.Failure;
 5 
 6 public class TestRunner {
 7    public static void main(String[] args) {
 8       Result result = JUnitCore.runClasses(Test2Test.class);
 9       for (Failure failure : result.getFailures()) {
10          System.out.println(failure.toString());
11       }
12       System.out.println(result.wasSuccessful());
13    }
14 }