实验三学习简单的白盒测试

第一题

package cn.wu.com;

import java.util.Scanner;
public class GCD{
public static int fun1(int a1,int b1){
  int c;
  c=a1%b1;
  while (c>0)
  {a1=b1;
  b1=c;
  c=a1%b1;
   }
     return b1;
                 }
 public static void main(String[] args) {
  int a,b,temp;
  int m;
  Scanner in=new Scanner(System.in);
    a=in.nextInt();
    b=in.nextInt();
    if(a<b)
    {temp=a;a=b;b=temp;
    }
    m=fun1(a,b);
    System.out.println("最大公约数为："+m);
                                         }
             }

第二题

package cn.wu.com;
public class LogicCoverage {

	/**
	 *
	 * 逻辑覆盖的简单练习
	 */
	public static  void t(int X,int Y){

	if(X<4||Y>0){
		  if(Y>1){
			  Y=Y+1;
			  System.out.println("Y="+Y);
		  }
		  else{
			  System.out.println("Y="+Y+","+"X="+X);
			  return;
		  }
	  }
	  else{
		  if(X>=5){
			  X=X-Y;
			  System.out.println("X="+X);
		  }
		  else{
			  X=X+Y;
			  System.out.println("X="+X);
		  }
	  }
	}
}

JUnit编写测试用例

package cn.wu.com;

import static org.junit.Assert.*;

import java.util.Scanner;

import org.junit.Test;

public class LogicCoverageTest {

	@Test
	public void test() {

		LogicCoverageTest.t();

	}

	private static void t() {
		// TODO Auto-generated method stub
		int X;
		int Y;
		Scanner s=new Scanner(System.in);
		System.out.println("请输入第一个数X：\n");
		X=s.nextInt();
		System.out.println("请输入第一个数Y：\n");
		Y=s.nextInt();

	}

}

T1:X<4,T2:Y>0,T3:X>5,T4:Y>1,A1,A2,A3

语句覆盖的测试用例

分支覆盖的测试用例