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 using Supertest?

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 should I do if I encounter errors during testing?

If you encounter errors, check the error messages for clues. Ensure your server is running and the endpoints are correctly defined.

Are there any best practices for writing tests with Supertest?

Yes! Keep your tests isolated, use descriptive test names, and clean up any data after tests to maintain a clean state.