node.js express testing with supertest and mocha

gistfile1.txt

SuperTest works with any test framework, here is an example without using any test framework at all:

const request = require('supertest');
const express = require('express');
 
const app = express();
 
app.get('/user', function(req, res) {
  res.status(200).json({ name: 'tobi' });
});
 
request(app)
  .get('/user')
  .expect('Content-Type', /json/)
  .expect('Content-Length', '15')
  .expect(200)
  .end(function(err, res) {
    if (err) throw err;
  });
Here's an example with mocha, note how you can pass done straight to any of the .expect() calls:

describe('GET /user', function() {
  it('respond with json', function(done) {
    request(app)
      .get('/user')
      .set('Accept', 'application/json')
      .expect('Content-Type', /json/)
      .expect(200, done);
  });
});

https://www.npmjs.com/package/supertest