mocha-as-promised.js

var Q = require('q');
require('should');
require('mocha-as-promised')();

// This pretends to be the API client
function get(url) {
  var deferred = Q.defer();

  if (url === '/1') {
    deferred.resolve([
      { id: 1, title: 'Hello' },
      { statusCode: 200 }
    ]);
  } else {
    var error = new Error('404 Not found');
    error.code = 404;

    deferred.reject(error);
  }

  return deferred.promise;
}


describe('When a resource does exist', function () {
  it('should return HTTP 200', function () {
    return get('/1').spread(function (body, res) {
      res.should.have.status(200);
    });
  });
});

describe('When a resource does not exist', function () {
  it('should return HTTP 404', function () {
    return get('/2').spread(
      function (body, res) {
        res.should.have.status(404);
      },
      function (err) {
        err.code.should.equal(404);
      }
    );
  });
});