[BE] Auth E2E 테스트 작성

backend/src/auth/auth.controller.ts

@@ -1,8 +1,9 @@
-import { Body, Controller, Get, Post, Req, Res } from '@nestjs/common';
+import { Body, Controller, Get, HttpCode, Post, Req, Res, UseGuards } from '@nestjs/common';
 import { ApiOperation, ApiTags, ApiOkResponse } from '@nestjs/swagger';
 import { AuthService } from './auth.service';
 import { Request, Response } from 'express';
 import { OAuthLoginDto, OAuthLoginResponseDto } from './dto/auth.dto';
+import { JwtAuthGuard } from './guards/jwtAuth.guard';
 
 @ApiTags('Authentication API')
 @Controller('auth')
@@ -30,6 +31,7 @@ export class AuthController {
   }
 
   @Post('logout')
+  @HttpCode(200)
   @ApiOperation({ description: '로그아웃 API' })
   @ApiOkResponse({ description: '로그아웃 성공' })
   logout(@Req() req: Request, @Res() res: Response): void {

backend/src/auth/auth.service.ts

@@ -74,18 +74,21 @@ export class AuthService {
 
   async refreshAccessToken(req: Request) {
     const userJwt = cookieExtractor(req);
+    if (!userJwt) {
+      throw new UnauthorizedException('토큰 정보가 존재하지 않습니다.');
+    }
+
     const payload = this.jwtService.decode(userJwt);
     const refreshToken = await this.authRepository.getRefreshToken(payload.accessKey);
 
-    if (refreshToken) {
-      return this.jwtService.sign({
-        id: payload.id,
-        nickname: payload.nickname,
-        accessKey: payload.accessKey,
-      });
-    } else {
+    if (!refreshToken) {
       throw new UnauthorizedException('로그인이 필요합니다.');
     }
+    return this.jwtService.sign({
+      id: payload.id,
+      nickname: payload.nickname,
+      accessKey: payload.accessKey,
+    });
   }
 
   removeRefreshToken(req: Request) {

backend/test/auth/auth.e2e-spec.ts

@@ -0,0 +1,221 @@
+import * as request from 'supertest';
+import { INestApplication } from '@nestjs/common';
+import { Test } from '@nestjs/testing';
+import { AppModule } from 'src/app.module';
+import { AuthService } from 'src/auth/auth.service';
+import { testRedisConfig } from 'src/configs/redis.config';
+import Redis from 'ioredis';
+import { DataSource, QueryRunner } from 'typeorm';
+import { UsersRepository } from 'src/users/users.repository';
+import { SocialType } from 'src/users/entity/socialType';
+import { User } from 'src/users/entity/user.entity';
+import * as cookieParser from 'cookie-parser';
+import { getExpiredJwtToken } from 'test/utils/testLogin';
+import { REFRESH_TOKEN_EXPIRE_DATE } from 'src/auth/utils/auth.constant';
+import { v4 as uuidv4 } from 'uuid';
+
+describe('AuthController (e2e)', () => {
+  let app: INestApplication;
+  let authService: AuthService;
+  let usersRepository: UsersRepository;
+  let queryRunner: QueryRunner;
+  const redis = new Redis(testRedisConfig);
+
+  const mockProfile = {
+    id: '1',
+    email: 'test@test.com',
+    nickname: 'testUser',
+    profile_image: 'testImage',
+  };
+  const mockAccessToken = 'mock token';
+  const body = { code: 'code', state: 'state', socialType: 'naver' };
+
+  beforeAll(async () => {
+    await redis.flushall();
+    const module = await Test.createTestingModule({
+      imports: [AppModule],
+    }).compile();
+
+    const dataSource = module.get<DataSource>(DataSource);
+    queryRunner = dataSource.createQueryRunner();
+    dataSource.createQueryRunner = jest.fn();
+    queryRunner.release = jest.fn();
+    (dataSource.createQueryRunner as jest.Mock).mockReturnValue(queryRunner);
+
+    authService = module.get<AuthService>(AuthService);
+    usersRepository = module.get<UsersRepository>(UsersRepository);
+    app = module.createNestApplication();
+    app.use(cookieParser());
+    await app.init();
+
+    jest.spyOn(authService, <keyof AuthService>'getToken').mockResolvedValue(mockAccessToken);
+    jest
+      .spyOn(authService, <keyof AuthService>'getUserProfile')
+      .mockResolvedValue(mockProfile as any);
+  });
+
+  afterAll(async () => {
+    await redis.quit();
+    await app.close();
+  });
+
+  beforeEach(async () => {
+    await queryRunner.startTransaction();
+  });
+
+  afterEach(async () => {
+    await redis.flushall();
+    await queryRunner.rollbackTransaction();
+  });
+
+  describe('/auth/login (POST)', () => {
+    beforeAll(() => {
+      jest.spyOn(usersRepository, 'createUser');
+    });
+
+    afterEach(() => {
+      (usersRepository.createUser as jest.Mock).mockClear();
+    });
+
+    it('DB에 존재하지 않는 socialId로 로그인 요청이 오면, 회원가입 후 토큰 반환', async () => {
+      //given
+      const url = '/auth/login';
+
+      //when
+      const response = await request(app.getHttpServer()).post(url).send(body);
+
+      //then
+      expect(response.status).toEqual(201);
+      expect(response.header['set-cookie']).toBeTruthy();
+      expect(usersRepository.createUser).toHaveBeenCalled();
+    });
+
+    it('DB에 존재하는 socialId로 로그인 요청이 오면, 토큰 반환', async () => {
+      //given
+      const user = {
+        id: 1,
+        email: mockProfile.email,
+        nickname: mockProfile.nickname,
+        socialId: mockProfile.id,
+        socialType: SocialType.NAVER,
+        profileImage: mockProfile.profile_image,
+      } as User;
+      const url = '/auth/login';
+
+      await usersRepository.save(user);
+
+      //when
+      const response = await request(app.getHttpServer()).post(url).send(body);
+
+      //then
+      expect(response.status).toEqual(201);
+      expect(response.header['set-cookie']).toBeTruthy();
+      expect(usersRepository.createUser).not.toHaveBeenCalled();
+    });
+  });
+
+  describe('/auth/refresh_token (GET)', () => {
+    it('유효한 jwt 토큰으로 refresh 요청 시 새 토큰 발급', async () => {
+      //given
+      const url = '/auth/refresh_token';
+      const agent = request.agent(app.getHttpServer());
+      await agent.post('/auth/login').send(body);
+
+      //when
+      const response = await agent.get(url);
+
+      //then
+      expect(response.status).toEqual(200);
+      expect(response.header['set-cookie']).toBeTruthy();
+    });
+
+    it('만료된 토큰으로 refresh 요청 시 새 토큰 발급', async () => {
+      //given
+      const url = '/auth/refresh_token';
+      const user = {
+        id: 1,
+        email: mockProfile.email,
+        nickname: mockProfile.nickname,
+        socialId: mockProfile.id,
+        socialType: SocialType.NAVER,
+        profileImage: mockProfile.profile_image,
+      } as User;
+
+      await usersRepository.save(user);
+
+      const { accessKey, token } = await getExpiredJwtToken(user);
+      const refreshToken = uuidv4();
+      await redis.set(accessKey, refreshToken, 'EX', REFRESH_TOKEN_EXPIRE_DATE);
+
+      //when
+      const response = await request(app.getHttpServer())
+        .get(url)
+        .set('Cookie', [`utk=${token}`]);
+
+      //then
+      expect(response.status).toEqual(200);
+      expect(response.body.message).toEqual('access token 갱신에 성공했습니다.');
+    });
+
+    it('jwt 없이 refresh 요청 시 401 에러 발생', async () => {
+      //given
+      const url = '/auth/refresh_token';
+      const agent = request.agent(app.getHttpServer());
+      await agent.post('/auth/login').send(body);
+
+      //when
+      const response = await request(app.getHttpServer()).get(url);
+
+      //then
+      expect(response.status).toEqual(401);
+      expect(response.body.message).toEqual('토큰 정보가 존재하지 않습니다.');
+    });
+
+    it('redis에 저장되지 않은 토큰으로 요청 시 401 에러 발생', async () => {
+      //given
+      const url = '/auth/refresh_token';
+      const agent = request.agent(app.getHttpServer());
+
+      await agent.post('/auth/login').send(body);
+      redis.flushall();
+
+      //when
+      const response = await agent.get(url);
+
+      //then
+      expect(response.status).toEqual(401);
+      expect(response.body.message).toEqual('로그인이 필요합니다.');
+    });
+  });
+
+  describe('/auth/logout (POST)', () => {
+    it('유효한 jwt 토큰으로 logout 요청 시 201 반환', async () => {
+      //given
+      const url = '/auth/logout';
+      const agent = request.agent(app.getHttpServer());
+
+      await agent.post('/auth/login').send(body);
+
+      //when
+      const response = await agent.post(url);
+
+      //then
+      expect(response.status).toEqual(200);
+      expect(response.header['set-cookie']).toHaveLength(1);
+      expect(response.header['set-cookie'][0]).toContain('Max-Age=0;');
+    });
+
+    it('비로그인 사용자가 로그아웃 요청을 보내면 201 반환', async () => {
+      //given
+      const url = '/auth/logout';
+
+      //when
+      const response = await request(app.getHttpServer()).post(url);
+
+      //then
+      expect(response.status).toEqual(200);
+      expect(response.header['set-cookie']).toHaveLength(1);
+      expect(response.header['set-cookie'][0]).toContain('Max-Age=0;');
+    });
+  });
+});

backend/test/utils/testLogin.ts

@@ -10,6 +10,13 @@ const jwtService = new JwtService({
   },
 });
 
+const expiredJwtService = new JwtService({
+  secret: process.env.JWT_SECRET,
+  signOptions: {
+    expiresIn: 0,
+  },
+});
+
 // accessToken 반환만을 위한 로그인 함수
 export const testLogin = async (user: User) => {
   const accessKey = uuidv4();
@@ -20,3 +27,14 @@ export const testLogin = async (user: User) => {
     accessKey,
   });
 };
+
+export const getExpiredJwtToken = async (user: User) => {
+  const accessKey = uuidv4();
+  const token = expiredJwtService.sign({
+    id: user.id,
+    nickname: user.nickname,
+    accessKey,
+  });
+
+  return { accessKey, token };
+};