testar rate limiter no jest

rate-limiter.spec.ts

import { INestApplication } from '@nestjs/common';
import { Test, TestingModule } from '@nestjs/testing';
import * as request from 'supertest';
import { AppModule } from './app.module';

describe('Rate Limit', () => {
  let app: INestApplication;

  beforeAll(async () => {
    const moduleFixture: TestingModule = await Test.createTestingModule({
      imports: [AppModule],
    }).compile();

    app = moduleFixture.createNestApplication();
    await app.init();
  });

  it('deve retornar status 429, solicitações demais após exceder o limite de taxa', async () => {
    const server = app.getHttpServer();
    const endpoint = '/';

    for (let i = 0; i < 10; i++) {
      await request(server).get(endpoint).expect(200);
    }

    const response = await request(server).get('/');
    expect(response.status).toBe(429);
    expect(response.body.statusCode).toBe(429);
    expect(response.body.message).toBe('ThrottlerException: Too Many Requests');
  });

  afterAll(async () => {
    await app.close();
  });
});