How can I test my TypeScript Express app using Supertest?

How can I test my TypeScript Express app using Supertest?

You can use Supertest to test your Express app by making HTTP requests to your endpoints. First, install Supertest and set up your test environment.

What are the steps to set it up?

1. Install Supertest: npm install supertest --save-dev. 2. Import Supertest in your test file. 3. Write tests using Supertest to make requests to your app.

Can you show me a sample test case?

Sure! Here's a simple test case:

import request from 'supertest';
import app from '../app'; // your Express app

describe('GET /api/example', () => {
  it('responds with json', async () => {
    const response = await request(app).get('/api/example');
    expect(response.status).toBe(200);
    expect(response.body).toHaveProperty('data');
  });
});