es6-mocha

request_spec.js

var Promise = require('bluebird');
var assert = require('assert');
var request = Promise.promisifyAll(require('request'));
var url1='http://httpbin.org/', url2=url1, url3=url1, url4=url1;

describe('context', function() {
  
  it('should kill callbacks', Promise.coroutine(function*() {
    // Use destructuring since "request" returns multiple values
    [res1] = yield request.getAsync(url1);
    assert.equal(200, res1.statusCode);
    // Array destructuring might not work in some node versions
    // In that case, simply use res[0].statusCode

    [res2] = yield request.getAsync(url2);
    assert.equal(200, res2.statusCode);
    [res3] = yield request.getAsync(url3);
    assert.equal(200, res3.statusCode);
    [res4] = yield request.getAsync(url4);
    assert.equal(200, res4.statusCode);
    
    // Yay! No more "done()" and no more callbacks
  }));
  
});