How do I set up Supertest for my Node.js application?

How do I set up Supertest for my Node.js application?

To set up Supertest, first install it using npm: npm install supertest --save-dev. Then, you can use it to test your HTTP endpoints.

Can you show me a basic example of how to use it?

Sure! Here's a simple example:

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

describe('GET /api/users', () => {
  it('responds with json', async () => {
    const response = await request(app)
      .get('/api/users')
      .expect('Content-Type', /json/)
      .expect(200);
  });
});

What if I want to test a POST request?

You can test a POST request like this:

it('creates a new user', async () => {
  const response = await request(app)
    .post('/api/users')
    .send({ name: 'John Doe' })
    .expect(201);
});