ApiCore/ApiCore-Backend/test/auth.e2e-spec.ts

import { INestApplication } from '@nestjs/common';
import * as bcrypt from 'bcryptjs';
import request from 'supertest';
import { App } from 'supertest/types';
import { PrismaService } from '../src/prisma/prisma.service';
import { createTestApp } from './utils/create-test-app';
import { AccessTokenBody, extractCookie, login } from './utils/api';

describe('Auth (e2e)', () => {
  let app: INestApplication<App>;
  let prisma: PrismaService;
  const email = `auth-e2e-${Date.now()}@example.com`;
  const password = 'SuperSecret123!';
  let userId: string;

  beforeAll(async () => {
    app = await createTestApp();
    prisma = app.get(PrismaService);

    const passwordHash = await bcrypt.hash(password, 12);
    const user = await prisma.user.create({
      data: {
        email,
        passwordHash,
        name: 'Auth E2E User',
        role: { connect: { key: 'ADMIN' } },
      },
    });
    userId = user.id;
  });

  afterAll(async () => {
    await prisma.refreshToken.deleteMany({ where: { userId } });
    await prisma.auditLog.deleteMany({ where: { userId } });
    await prisma.user.delete({ where: { id: userId } });
    await app.close();
  });

  it('rejects login with wrong password', () => {
    return request(app.getHttpServer())
      .post('/api/v1/auth/login')
      .send({ email, password: 'wrong-password' })
      .expect(401);
  });

  it('logs in, returns an access token, and sets an httpOnly refresh-token cookie', async () => {
    const tokens = await login(app, email, password);

    expect(tokens.accessToken).toEqual(expect.any(String));
    expect(tokens.refreshTokenCookie).toMatch(/^refreshToken=/);
  });

  it('rejects a protected route without a token', () => {
    return request(app.getHttpServer()).get('/api/v1/users').expect(401);
  });

  it('accepts a protected route with a valid access token', async () => {
    const tokens = await login(app, email, password);

    await request(app.getHttpServer())
      .get('/api/v1/users')
      .set('Authorization', `Bearer ${tokens.accessToken}`)
      .expect(200);
  });

  it('rejects refresh when no refresh-token cookie is present', () => {
    return request(app.getHttpServer())
      .post('/api/v1/auth/refresh')
      .expect(401);
  });

  it('rotates the refresh-token cookie and rejects reuse of the old one', async () => {
    const tokens = await login(app, email, password);

    const refreshResponse = await request(app.getHttpServer())
      .post('/api/v1/auth/refresh')
      .set('Cookie', tokens.refreshTokenCookie)
      .expect(200);
    const rotatedCookie = extractCookie(refreshResponse, 'refreshToken');

    expect(rotatedCookie).not.toEqual(tokens.refreshTokenCookie);
    expect((refreshResponse.body as AccessTokenBody).accessToken).toEqual(
      expect.any(String),
    );

    await request(app.getHttpServer())
      .post('/api/v1/auth/refresh')
      .set('Cookie', tokens.refreshTokenCookie)
      .expect(401);
  });

  it('logs out and invalidates the refresh-token cookie', async () => {
    const tokens = await login(app, email, password);

    await request(app.getHttpServer())
      .post('/api/v1/auth/logout')
      .set('Cookie', tokens.refreshTokenCookie)
      .expect(204);

    await request(app.getHttpServer())
      .post('/api/v1/auth/refresh')
      .set('Cookie', tokens.refreshTokenCookie)
      .expect(401);
  });
});