yadda/examples/mocha-express/test/steps/bottles-library.js

A true BDD framework for JavaScript

'use strict';

var Yadda = require('yadda');
var English = Yadda.localisation.English;
var Dictionary = Yadda.Dictionary;
var assert = require('assert');
var request = require('request');
var _ = require('underscore');
var async = require('async');
var url = require('url');

module.exports = (function () {
  var bottles;
  var dictionary = new Dictionary().define('NUM', /(\d+)/);
  var library = English.library(dictionary)

    .given('$NUM green bottles are standing on the wall', function (number_of_bottles, next) {
      var data = _.chain(number_of_bottles)
        .range()
        .map(function (data) {
          return { colour: 'green' };
        })
        .value();

      request.put({ url: url.resolve(this.baseUrl, '/api/bottles'), json: data }, function (err, response, body) {
        assert.ifError(err);
        assert.equal(response.statusCode, 200);
        bottles = body;
        next();
      });
    })

    .when('$NUM green bottle accidentally falls', function (number_of_falling_bottles, next) {
      var _this = this;
      var urls = _.chain(number_of_falling_bottles)
        .range()
        .map(function () {
          return url.resolve(_this.baseUrl, bottles.pop().uri);
        })
        .value();
      async.each(
        urls,
        function (url, callback) {
          request.del(url, function (err, response, body) {
            assert.ifError(err);
            assert.equal(response.statusCode, 204);
            callback();
          });
        },
        next
      );
    })

    .then('there (?:are|are still) $NUM green bottles standing on the wall', function (number_of_bottles, next) {
      request.get({ url: url.resolve(this.baseUrl, '/api/bottles'), json: true }, function (err, response, body) {
        assert.ifError(err);
        assert.equal(response.statusCode, 200);
        assert.equal(body.length, parseInt(number_of_bottles));
        next(err);
      });
    });

  return library;
})();