jest-supertest-matchers

Setup

import app from '../app';
import matchers from 'jest-supertest-matchers';
import request from 'supertest';

// inside tests
beforeAll(() => {
  expect.extend(matchers);
});

it('example', async () => {
  const res = await request(app).get('/');
  expect(res).toHaveHTTPStatus(200);
});