[junit] junit 사용하기

 

• Spring-Test 사용하기

junit을 java에서 사용하기 위해서는 2가지 라이브러리가 필요하다.

junit.jar와 hamcrest-core.jar가 필요하다. 다운은 https://github.com/junit-team/junit/wiki/Download-and-Install 여기서 받을 수 있고,

junit 공식 사이트는 http://junit.org/

 

User

package com.slipp.user;

import com.slipp.PasswordMismatchException;
import com.slipp.db.Database;

public class User {
	private String userid;
	private String password;
	private String name;
	private String email;
	
	public User(String userid, String password, String name, String email) {
		super();
		this.userid = userid;
		this.password = password;
		this.name = name;
		this.email = email;
	}

	public String getUserid() {
		return userid;
	}

	public void setUserid(String userid) {
		this.userid = userid;
	}

	public String getPassword() {
		return password;
	}

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

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getEmail() {
		return email;
	}

	public void setEmail(String email) {
		this.email = email;
	}

	public boolean matchPassword(String newPassword) {
		return this.password.equals(newPassword);
	}
	
	public static boolean login(String userid, String password) throws NotFoundUserException, PasswordMismatchException {
		User user =Database.findByUserId(userid);
		if(user==null){
			throw new NotFoundUserException();
		}
		
		if(!user.matchPassword(password)){
			throw new PasswordMismatchException();
		}
		
		return true;
	}
	
	
	
	@Override
	public String toString() {
		return "User [userid=" + userid + ", password=" + password + ", name=" + name + ", email=" + email + "]";
	}


	
	
	
}

 

Database

package com.slipp.db;

import java.util.HashMap;
import java.util.Map;

import com.slipp.user.User;


public class Database {
	private static Map<String, User> users=new HashMap<>();
	
	public static void addUser(User user){
		System.out.println("user : " +user.toString());
		users.put(user.getUserid(), user);
	}

	public static User findByUserId(String userid) {
		
		return users.get(userid);
	}
	

}

 

DatabaseTest

package com.slipp.db;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

import org.junit.Test;

import com.slipp.user.User;

public class DatabaseTest {

	@Test
	public void addAdnFind(){
		User user =new User("userid", "password", "name", "javagigi@slipp.net");
		Database.addUser(user);
		
		User dbUser =Database.findByUserId(user.getUserid());
		assertEquals(user, dbUser);
	}
	
	@Test
	public void addAndFindWhenNotExisted(){
		User dbUser=Database.findByUserId("userI2");
		assertNull(dbUser);
	}
	
	
	
}

 

UserTest

package com.slipp.user;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import org.junit.Test;

import com.slipp.PasswordMismatchException;
import com.slipp.db.Database;

public class UserTest {
	
	public static User TEST_USER =new User("userid", "password", "name", "java@rok.net" ); 
	
	@Test
	public void matchPassword(){
		assertTrue( TEST_USER.matchPassword("password"));
	}
	

	@Test
	public void notMatchPassword(){
		assertFalse(TEST_USER.matchPassword("password2"));
	}

	//로그인 성공 여부 테스트
	@Test
	public void login() throws Exception {
		User user=UserTest.TEST_USER;
		Database.addUser(user);	
		assertTrue(User.login(TEST_USER.getUserid(), TEST_USER.getPassword()));
	}
	
	@Test(expected=NotFoundUserException.class)
	public void loginWhenNotExitedUser() throws Exception {
		User.login("userId2", TEST_USER.getPassword());
	}
	
	
	
	@Test(expected=PasswordMismatchException.class)
	public void loginWhenPasswordMissmatch() throws Exception {
		User user =UserTest.TEST_USER;
		Database.addUser(user);
		User.login("userid", "password2");
	}
	
	
	
}

 

 

 

 

NotFoundUserException

package com.slipp.user;

public class NotFoundUserException extends Exception {

}

 

PasswordMismatchException

package com.slipp;

public class PasswordMismatchException extends Exception{

}

 

 

login_action.jsp

<%@page import="com.slipp.user.User"%>
<%@page import="com.slipp.db.Database"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>

<%
	String userId=request.getParameter("userId");
	String password=request.getParameter("password");
	
	User user=Database.findByUserId(userId);
	if(user==null){
		//사용자가 존재하지 않는다는 것을 에러 메시지 전송
	}
	
	if(password.equals(user.getPassword())){
		//로그인 처리
	}

    
%>