How do I set up integration testing for my TypeScript Express app?

How do I set up integration testing for my TypeScript Express app?

To set up integration testing for your TypeScript Express app, you can use tools like Jest or Mocha along with Supertest.

Can you provide a sample test case?

Sure! Here's a simple example:

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

describe('GET /api/users', () => {
  it('should return a list of users', async () => {
    const response = await request(app).get('/api/users');
    expect(response.status).toBe(200);
    expect(response.body).toHaveProperty('users');
  });
});

What should I do if my tests are failing?

Check the error messages for clues. Ensure your API endpoints are correct and that your test data is set up properly.