What are the differences between Nock and Supertest?

What are the differences between Nock and Supertest?

Nock is a library for HTTP request mocking, while Supertest is used for testing HTTP servers. Nock intercepts requests, allowing you to simulate responses, whereas Supertest is designed to test your server's endpoints directly.

Can you give me an example of how to use Nock?

Sure! Here's a simple example:

const nock = require('nock');

nock('http://example.com')
  .get('/users')
  .reply(200, [{ id: 1, name: 'John Doe' }]);

// Now, when you make a request to http://example.com/users, it will return the mocked response.

How about an example using Supertest?

Absolutely! Here's how you can use Supertest to test an Express server:

const request = require('supertest');
const app = require('./app'); // Your Express app

request(app)
  .get('/users')
  .expect('Content-Type', /json/)
  .expect(200)
  .end((err, res) => {
    if (err) throw err;
    console.log(res.body);
  });

Which one should I use for my project?

It depends on your needs. If you need to mock external API calls, use Nock. If you're testing your own server's endpoints, Supertest is the way to go.