Java单元测试实践-优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_20054/article/details/81997656

本文介绍了一个简单的Java单元测试案例，包括用户操作和服务登录功能的测试。通过JUnit框架进行测试用例的设计与执行，并展示了如何验证特定功能的行为是否符合预期。

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package com.zyl.service;

public class UsersDAO {

	public String saveUser(String user){

		System.out.println("保存用户成功");

		return user;
	}

	public String findUserById(Long id){

		String users = "";
		if(id.intValue()==1)
		  users = "zyl";

		return users.toLowerCase();

	}

}
-------------------------------------
package com.zyl.service;

public class LoginService {
    private String username;
    private String password;


	public String getUsername() {
		return username;
	}


	public void setUsername(String username) {
		this.username = username;
	}


	public String getPassword() {
		return password;
	}


	public void setPassword(String password) {
		this.password = password;
	}


	public String login(){

		if("admin".equals(username)&&"admin".equals(password))
			return "admin";
			else
				return "input";



	}

}
----------------------------------
package com.zyl.service.test;

import junit.framework.TestCase;

import com.zyl.service.LoginService;

public class LoginServiceTestCase extends TestCase {
    private LoginService loginService;

	protected void setUp() throws Exception {
		loginService = new LoginService();
	}

	protected void tearDown() throws Exception {
		loginService = null;
		System.gc();
	}

	public void testLogin() {

		loginService.setUsername(null);
		loginService.setPassword("admin");

		//this.assertEquals("没有返回admin视图","admin", loginService.login());
		this.assertEquals("没有返回input视图","input",loginService.login());

	}
	public static void main(String[] args) {


	}


}
----------------------------------------
package com.zyl.service.test;

import junit.framework.TestCase;

import com.zyl.service.UsersDAO;

public class UserDAOTestCase extends TestCase {

	private UsersDAO usersDao;

	public UserDAOTestCase() {
		// TODO Auto-generated constructor stub
	}

	public void setUp(){

		usersDao = new UsersDAO();
		System.out.println("初始化UsersDAO");

	}

	public void tearDown(){

		usersDao=null;
		System.gc();
		System.out.println("释放UsersDAO对象，垃圾回收");
	}



	public void testSaveUser(){



		//String user="zyl";
		String user=null;
		this.assertNotSame("返回的与输入的不一致",user,usersDao.saveUser(user));


	}

	public void testFindUserById(){



		String userFound = 
		usersDao.findUserById(2L);

		assertEquals("没有找到编号为1的用户","zyl",userFound);



	}


	/**
	 * @param args
	 */
	public static void main(String[] args) {

		//Baseline Text
		//junit.textui.TestRunner.run(UserDAOTestCase.class);
		junit.swingui.TestRunner.run(UserDAOTestCase.class);





	}

}
--------------------------------
package com.zyl.service.test;

import junit.framework.Test;
import junit.framework.TestSuite;

public class AllTests {

	public static Test suite() {
		TestSuite suite = new TestSuite("Test for com.zyl.service.test");
		//$JUnit-BEGIN$
		suite.addTestSuite(UserDAOTestCase.class);
		suite.addTestSuite(LoginServiceTestCase.class);
		//$JUnit-END$
		return suite;
	}

}

junit3测试