test/saucelabs.js

#!/usr/bin/env node
'use strict';

/** Environment shortcut. */
var env = process.env;

if (env.TRAVIS_SECURE_ENV_VARS == 'false') {
  console.log('Skipping Sauce Labs jobs; secure environment variables are unavailable');
  process.exit(0);
}

/** Load Node.js modules. */
var EventEmitter = require('events').EventEmitter,
    http = require('http'),
    path = require('path'),
    url = require('url'),
    util = require('util');

/** Load other modules. */
var _ = require('../lodash.js'),
    chalk = require('chalk'),
    ecstatic = require('ecstatic'),
    request = require('request'),
    SauceTunnel = require('sauce-tunnel');

/** Used for Sauce Labs credentials. */
var accessKey = env.SAUCE_ACCESS_KEY,
    username = env.SAUCE_USERNAME;

/** Used as the default maximum number of times to retry a job and tunnel. */
var maxJobRetries = 3,
    maxTunnelRetries = 3;

/** Used as the static file server middleware. */
var mount = ecstatic({
  'cache': 'no-cache',
  'root': process.cwd()
});

/** Used as the list of ports supported by Sauce Connect. */
var ports = [
  80, 443, 888, 2000, 2001, 2020, 2109, 2222, 2310, 3000, 3001, 3030, 3210,
  3333, 4000, 4001, 4040, 4321, 4502, 4503, 4567, 5000, 5001, 5050, 5555, 5432,
  6000, 6001, 6060, 6666, 6543, 7000, 7070, 7774, 7777, 8000, 8001, 8003, 8031,
  8080, 8081, 8765, 8777, 8888, 9000, 9001, 9080, 9090, 9876, 9877, 9999, 49221,
  55001
];

/** Used by `logInline` to clear previously logged messages. */
var prevLine = '';

/** Method shortcut. */
var push = Array.prototype.push;

/** Used to detect error messages. */
var reError = /(?:\be|E)rror\b/;

/** Used to detect valid job ids. */
var reJobId = /^[a-z0-9]{32}$/;

/** Used to display the wait throbber. */
var throbberDelay = 500,
    waitCount = -1;

/**
 * Used as Sauce Labs config values.
 * See the [Sauce Labs documentation](https://docs.saucelabs.com/reference/test-configuration/)
 * for more details.
 */
var advisor = getOption('advisor', false),
    build = getOption('build', (env.TRAVIS_COMMIT || '').slice(0, 10)),
    commandTimeout = getOption('commandTimeout', 90),
    compatMode = getOption('compatMode', null),
    customData = Function('return {' + getOption('customData', '').replace(/^\{|}$/g, '') + '}')(),
    deviceOrientation = getOption('deviceOrientation', 'portrait'),
    framework = getOption('framework', 'qunit'),
    idleTimeout = getOption('idleTimeout', 60),
    jobName = getOption('name', 'unit tests'),
    maxDuration = getOption('maxDuration', 180),
    port = ports[Math.min(_.sortedIndex(ports, getOption('port', 9001)), ports.length - 1)],
    publicAccess = getOption('public', true),
    queueTimeout = getOption('queueTimeout', 240),
    recordVideo = getOption('recordVideo', true),
    recordScreenshots = getOption('recordScreenshots', false),
    runner = getOption('runner', 'test/index.html').replace(/^\W+/, ''),
    runnerUrl = getOption('runnerUrl', 'http://localhost:' + port + '/' + runner),
    statusInterval = getOption('statusInterval', 5),
    tags = getOption('tags', []),
    throttled = getOption('throttled', 10),
    tunneled = getOption('tunneled', true),
    tunnelId = getOption('tunnelId', 'tunnel_' + (env.TRAVIS_JOB_ID || 0)),
    tunnelTimeout = getOption('tunnelTimeout', 120),
    videoUploadOnPass = getOption('videoUploadOnPass', false);

/** Used to convert Sauce Labs browser identifiers to their formal names. */
var browserNameMap = {
  'googlechrome': 'Chrome',
  'iehta': 'Internet Explorer',
  'ipad': 'iPad',
  'iphone': 'iPhone'
};

/** List of platforms to load the runner on. */
var platforms = [
  ['Linux', 'android', '5.1'],
  ['Windows 10', 'chrome', '47'],
  ['Windows 10', 'chrome', '46'],
  ['Windows 10', 'firefox', '43'],
  ['Windows 10', 'firefox', '42'],
  ['Windows 10', 'microsoftedge', '20.10240'],
  ['Windows 10', 'internet explorer', '11'],
  ['Windows 8', 'internet explorer', '10'],
  ['Windows 7', 'internet explorer', '9'],
  // ['OS X 10.10', 'ipad', '9.1'],
  ['OS X 10.11', 'safari', '9'],
  ['OS X 10.10', 'safari', '8']
];

/** Used to tailor the `platforms` array. */
var isAMD = _.includes(tags, 'amd'),
    isBackbone = _.includes(tags, 'backbone'),
    isModern = _.includes(tags, 'modern');

// The platforms to test IE compatibility modes.
if (compatMode) {
  platforms = [
    ['Windows 10', 'internet explorer', '11'],
    ['Windows 8', 'internet explorer', '10'],
    ['Windows 7', 'internet explorer', '9'],
    ['Windows 7', 'internet explorer', '8']
  ];
}
// The platforms for AMD tests.
if (isAMD) {
  platforms = _.filter(platforms, function(platform) {
    var browser = browserName(platform[1]),
        version = +platform[2];

    switch (browser) {
      case 'Android': return version >= 4.4;
      case 'Opera': return version >= 10;
    }
    return true;
  });
}
// The platforms for Backbone tests.
if (isBackbone) {
  platforms = _.filter(platforms, function(platform) {
    var browser = browserName(platform[1]),
        version = +platform[2];

    switch (browser) {
      case 'Firefox': return version >= 4;
      case 'Internet Explorer': return version >= 7;
      case 'iPad': return version >= 5;
      case 'Opera': return version >= 12;
    }
    return true;
  });
}
// The platforms for modern builds.
if (isModern) {
  platforms = _.filter(platforms, function(platform) {
    var browser = browserName(platform[1]),
        version = +platform[2];

    switch (browser) {
      case 'Android': return version >= 4.1;
      case 'Firefox': return version >= 10;
      case 'Internet Explorer': return version >= 9;
      case 'iPad': return version >= 6;
      case 'Opera': return version >= 12;
      case 'Safari': return version >= 6;
    }
    return true;
  });
}

/** Used as the default `Job` options object. */
var jobOptions = {
  'build': build,
  'command-timeout': commandTimeout,
  'custom-data': customData,
  'device-orientation': deviceOrientation,
  'framework': framework,
  'idle-timeout': idleTimeout,
  'max-duration': maxDuration,
  'name': jobName,
  'public': publicAccess,
  'platforms': platforms,
  'record-screenshots': recordScreenshots,
  'record-video': recordVideo,
  'sauce-advisor': advisor,
  'tags': tags,
  'url': runnerUrl,
  'video-upload-on-pass': videoUploadOnPass
};

if (publicAccess === true) {
  jobOptions['public'] = 'public';
}
if (tunneled) {
  jobOptions['tunnel-identifier'] = tunnelId;
}

/*----------------------------------------------------------------------------*/

/**
 * Resolves the formal browser name for a given Sauce Labs browser identifier.
 *
 * @private
 * @param {string} identifier The browser identifier.
 * @returns {string} Returns the formal browser name.
 */
function browserName(identifier) {
  return browserNameMap[identifier] || capitalizeWords(identifier);
}

/**
 * Capitalizes the first character of each word in `string`.
 *
 * @private
 * @param {string} string The string to augment.
 * @returns {string} Returns the augmented string.
 */
function capitalizeWords(string) {
  return _.map(string.split(' '), _.capitalize).join(' ');
}

/**
 * Gets the value for the given option name. If no value is available the
 * `defaultValue` is returned.
 *
 * @private
 * @param {string} name The name of the option.
 * @param {*} defaultValue The default option value.
 * @returns {*} Returns the option value.
 */
function getOption(name, defaultValue) {
  var isArr = _.isArray(defaultValue);
  return _.reduce(process.argv, function(result, value) {
    if (isArr) {
      value = optionToArray(name, value);
      return _.isEmpty(value) ? result : value;
    }
    value = optionToValue(name, value);

    return value == null ? result : value;
  }, defaultValue);
}

/**
 * Checks if `value` is a job ID.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a job ID, else `false`.
 */
function isJobId(value) {
  return reJobId.test(value);
}

/**
 * Writes an inline message to standard output.
 *
 * @private
 * @param {string} [text=''] The text to log.
 */
function logInline(text) {
  var blankLine = _.repeat(' ', _.size(prevLine));
  prevLine = text = _.truncate(text, { 'length': 40 });
  process.stdout.write(text + blankLine.slice(text.length) + '\r');
}

/**
 * Writes the wait throbber to standard output.
 *
 * @private
 */
function logThrobber() {
  logInline('Please wait' + _.repeat('.', (++waitCount % 3) + 1));
}

/**
 * Converts a comma separated option value into an array.
 *
 * @private
 * @param {string} name The name of the option to inspect.
 * @param {string} string The options string.
 * @returns {Array} Returns the new converted array.
 */
function optionToArray(name, string) {
  return _.compact(_.invokeMap((optionToValue(name, string) || '').split(/, */), 'trim'));
}

/**
 * Extracts the option value from an option string.
 *
 * @private
 * @param {string} name The name of the option to inspect.
 * @param {string} string The options string.
 * @returns {string|undefined} Returns the option value, else `undefined`.
 */
function optionToValue(name, string) {
  var result = string.match(RegExp('^' + name + '(?:=([\\s\\S]+))?$'));
  if (result) {
    result = _.result(result, 1);
    result = result ? _.trim(result) : true;
  }
  if (result === 'false') {
    return false;
  }
  return result || undefined;
}

/*----------------------------------------------------------------------------*/

/**
 * The `Job#remove` and `Tunnel#stop` callback used by `Jobs#restart`
 * and `Tunnel#restart` respectively.
 *
 * @private
 */
function onGenericRestart() {
  this.restarting = false;
  this.emit('restart');
  this.start();
}

/**
 * The `request.put` and `SauceTunnel#stop` callback used by `Jobs#stop`
 * and `Tunnel#stop` respectively.
 *
 * @private
 * @param {Object} [error] The error object.
 */
function onGenericStop(error) {
  this.running = this.stopping = false;
  this.emit('stop', error);
}

/**
 * The `request.del` callback used by `Jobs#remove`.
 *
 * @private
 */
function onJobRemove(error, res, body) {
  this.id = this.taskId = this.url = null;
  this.removing = false;
  this.emit('remove');
}

/**
 * The `Job#remove` callback used by `Jobs#reset`.
 *
 * @private
 */
function onJobReset() {
  this.attempts = 0;
  this.failed = this.resetting = false;
  this._pollerId = this.id = this.result = this.taskId = this.url = null;
  this.emit('reset');
}

/**
 * The `request.post` callback used by `Jobs#start`.
 *
 * @private
 * @param {Object} [error] The error object.
 * @param {Object} res The response data object.
 * @param {Object} body The response body JSON object.
 */
function onJobStart(error, res, body) {
  this.starting = false;

  if (this.stopping) {
    return;
  }
  var statusCode = _.result(res, 'statusCode'),
      taskId = _.first(_.result(body, 'js tests'));

  if (error || !taskId || statusCode != 200) {
    if (this.attempts < this.retries) {
      this.restart();
      return;
    }
    var na = 'unavailable',
        bodyStr = _.isObject(body) ? '\n' + JSON.stringify(body) : na,
        statusStr = _.isFinite(statusCode) ? statusCode : na;

    logInline();
    console.error('Failed to start job; status: %s, body: %s', statusStr, bodyStr);
    if (error) {
      console.error(error);
    }
    this.failed = true;
    this.emit('complete');
    return;
  }
  this.running = true;
  this.taskId = taskId;
  this.timestamp = _.now();
  this.emit('start');
  this.status();
}

/**
 * The `request.post` callback used by `Job#status`.
 *
 * @private
 * @param {Object} [error] The error object.
 * @param {Object} res The response data object.
 * @param {Object} body The response body JSON object.
 */
function onJobStatus(error, res, body) {
  this.checking = false;

  if (!this.running || this.stopping) {
    return;
  }
  var completed = _.result(body, 'completed', false),
      data = _.first(_.result(body, 'js tests')),
      elapsed = (_.now() - this.timestamp) / 1000,
      jobId = _.result(data, 'job_id', null),
      jobResult = _.result(data, 'result', null),
      jobStatus = _.result(data, 'status', ''),
      jobUrl = _.result(data, 'url', null),
      expired = (elapsed >= queueTimeout && !_.includes(jobStatus, 'in progress')),
      options = this.options,
      platform = options.platforms[0];

  if (_.isObject(jobResult)) {
    var message = _.result(jobResult, 'message');
  } else {
    if (typeof jobResult == 'string') {
      message = jobResult;
    }
    jobResult = null;
  }
  if (isJobId(jobId)) {
    this.id = jobId;
    this.result = jobResult;
    this.url = jobUrl;
  } else {
    completed = false;
  }
  this.emit('status', jobStatus);

  if (!completed && !expired) {
    this._pollerId = _.delay(_.bind(this.status, this), this.statusInterval * 1000);
    return;
  }
  var description = browserName(platform[1]) + ' ' + platform[2] + ' on ' + capitalizeWords(platform[0]),
      errored = !jobResult || !jobResult.passed || reError.test(message) || reError.test(jobStatus),
      failures = _.result(jobResult, 'failed'),
      label = options.name + ':',
      tunnel = this.tunnel;

  if (errored || failures) {
    if (errored && this.attempts < this.retries) {
      this.restart();
      return;
    }
    var details = 'See ' + jobUrl + ' for details.';
    this.failed = true;

    logInline();
    if (failures) {
      console.error(label + ' %s ' + chalk.red('failed') + ' %d test' + (failures > 1 ? 's' : '') + '. %s', description, failures, details);
    }
    else if (tunnel.attempts < tunnel.retries) {
      tunnel.restart();
      return;
    }
    else {
      if (typeof message == 'undefined') {
        message = 'Results are unavailable. ' + details;
      }
      console.error(label, description, chalk.red('failed') + ';', message);
    }
  }
  else {
    logInline();
    console.log(label, description, chalk.green('passed'));
  }
  this.running = false;
  this.emit('complete');
}

/**
 * The `SauceTunnel#start` callback used by `Tunnel#start`.
 *
 * @private
 * @param {boolean} success The connection success indicator.
 */
function onTunnelStart(success) {
  this.starting = false;

  if (this._timeoutId) {
    clearTimeout(this._timeoutId);
    this._timeoutId = null;
  }
  if (!success) {
    if (this.attempts < this.retries) {
      this.restart();
      return;
    }
    logInline();
    console.error('Failed to open Sauce Connect tunnel');
    process.exit(2);
  }
  logInline();
  console.log('Sauce Connect tunnel opened');

  var jobs = this.jobs;
  push.apply(jobs.queue, jobs.all);

  this.running = true;
  this.emit('start');

  console.log('Starting jobs...');
  this.dequeue();
}

/*----------------------------------------------------------------------------*/

/**
 * The Job constructor.
 *
 * @private
 * @param {Object} [properties] The properties to initialize a job with.
 */
function Job(properties) {
  EventEmitter.call(this);

  this.options = {};
  _.merge(this, properties);
  _.defaults(this.options, _.cloneDeep(jobOptions));

  this.attempts = 0;
  this.checking = this.failed = this.removing = this.resetting = this.restarting = this.running = this.starting = this.stopping = false;
  this._pollerId = this.id = this.result = this.taskId = this.url = null;
}

util.inherits(Job, EventEmitter);

/**
 * Removes the job.
 *
 * @memberOf Job
 * @param {Function} callback The function called once the job is removed.
 * @param {Object} Returns the job instance.
 */
Job.prototype.remove = function(callback) {
  this.once('remove', _.iteratee(callback));
  if (this.removing) {
    return this;
  }
  this.removing = true;
  return this.stop(function() {
    var onRemove = _.bind(onJobRemove, this);
    if (!this.id) {
      _.defer(onRemove);
      return;
    }
    request.del(_.template('https://saucelabs.com/rest/v1/${user}/jobs/${id}')(this), {
      'auth': { 'user': this.user, 'pass': this.pass }
    }, onRemove);
  });
};

/**
 * Resets the job.
 *
 * @memberOf Job
 * @param {Function} callback The function called once the job is reset.
 * @param {Object} Returns the job instance.
 */
Job.prototype.reset = function(callback) {
  this.once('reset', _.iteratee(callback));
  if (this.resetting) {
    return this;
  }
  this.resetting = true;
  return this.remove(onJobReset);
};

/**
 * Restarts the job.
 *
 * @memberOf Job
 * @param {Function} callback The function called once the job is restarted.
 * @param {Object} Returns the job instance.
 */
Job.prototype.restart = function(callback) {
  this.once('restart', _.iteratee(callback));
  if (this.restarting) {
    return this;
  }
  this.restarting = true;

  var options = this.options,
      platform = options.platforms[0],
      description = browserName(platform[1]) + ' ' + platform[2] + ' on ' + capitalizeWords(platform[0]),
      label = options.name + ':';

  logInline();
  console.log('%s %s restart %d of %d', label, description, ++this.attempts, this.retries);

  return this.remove(onGenericRestart);
};

/**
 * Starts the job.
 *
 * @memberOf Job
 * @param {Function} callback The function called once the job is started.
 * @param {Object} Returns the job instance.
 */
Job.prototype.start = function(callback) {
  this.once('start', _.iteratee(callback));
  if (this.starting || this.running) {
    return this;
  }
  this.starting = true;
  request.post(_.template('https://saucelabs.com/rest/v1/${user}/js-tests')(this), {
    'auth': { 'user': this.user, 'pass': this.pass },
    'json': this.options
  }, _.bind(onJobStart, this));

  return this;
};

/**
 * Checks the status of a job.
 *
 * @memberOf Job
 * @param {Function} callback The function called once the status is resolved.
 * @param {Object} Returns the job instance.
 */
Job.prototype.status = function(callback) {
  this.once('status', _.iteratee(callback));
  if (this.checking || this.removing || this.resetting || this.restarting || this.starting || this.stopping) {
    return this;
  }
  this._pollerId = null;
  this.checking = true;
  request.post(_.template('https://saucelabs.com/rest/v1/${user}/js-tests/status')(this), {
    'auth': { 'user': this.user, 'pass': this.pass },
    'json': { 'js tests': [this.taskId] }
  }, _.bind(onJobStatus, this));

  return this;
};

/**
 * Stops the job.
 *
 * @memberOf Job
 * @param {Function} callback The function called once the job is stopped.
 * @param {Object} Returns the job instance.
 */
Job.prototype.stop = function(callback) {
  this.once('stop', _.iteratee(callback));
  if (this.stopping) {
    return this;
  }
  this.stopping = true;
  if (this._pollerId) {
    clearTimeout(this._pollerId);
    this._pollerId = null;
    this.checking = false;
  }
  var onStop = _.bind(onGenericStop, this);
  if (!this.running || !this.id) {
    _.defer(onStop);
    return this;
  }
  request.put(_.template('https://saucelabs.com/rest/v1/${user}/jobs/${id}/stop')(this), {
    'auth': { 'user': this.user, 'pass': this.pass }
  }, onStop);

  return this;
};

/*----------------------------------------------------------------------------*/

/**
 * The Tunnel constructor.
 *
 * @private
 * @param {Object} [properties] The properties to initialize the tunnel with.
 */
function Tunnel(properties) {
  EventEmitter.call(this);

  _.merge(this, properties);

  var active = [],
      queue = [];

  var all = _.map(this.platforms, _.bind(function(platform) {
    return new Job(_.merge({
      'user': this.user,
      'pass': this.pass,
      'tunnel': this,
      'options': { 'platforms': [platform] }
    }, this.job));
  }, this));

  var completed = 0,
      restarted = [],
      success = true,
      total = all.length,
      tunnel = this;

  _.invokeMap(all, 'on', 'complete', function() {
    _.pull(active, this);
    if (success) {
      success = !this.failed;
    }
    if (++completed == total) {
      tunnel.stop(_.partial(tunnel.emit, 'complete', success));
      return;
    }
    tunnel.dequeue();
  });

  _.invokeMap(all, 'on', 'restart', function() {
    if (!_.includes(restarted, this)) {
      restarted.push(this);
    }
    // Restart tunnel if all active jobs have restarted.
    var threshold = Math.min(all.length, _.isFinite(throttled) ? throttled : 3);
    if (tunnel.attempts < tunnel.retries &&
        active.length >= threshold && _.isEmpty(_.difference(active, restarted))) {
      tunnel.restart();
    }
  });

  this.on('restart', function() {
    completed = 0;
    success = true;
    restarted.length = 0;
  });

  this._timeoutId = null;
  this.attempts = 0;
  this.restarting = this.running = this.starting = this.stopping = false;
  this.jobs = { 'active': active, 'all': all, 'queue': queue };
  this.connection = new SauceTunnel(this.user, this.pass, this.id, this.tunneled, ['-P', '0']);
}

util.inherits(Tunnel, EventEmitter);

/**
 * Restarts the tunnel.
 *
 * @memberOf Tunnel
 * @param {Function} callback The function called once the tunnel is restarted.
 */
Tunnel.prototype.restart = function(callback) {
  this.once('restart', _.iteratee(callback));
  if (this.restarting) {
    return this;
  }
  this.restarting = true;

  logInline();
  console.log('Tunnel %s: restart %d of %d', this.id, ++this.attempts, this.retries);

  var jobs = this.jobs,
      active = jobs.active,
      all = jobs.all;

  var reset = _.after(all.length, _.bind(this.stop, this, onGenericRestart)),
      stop = _.after(active.length, _.partial(_.invokeMap, all, 'reset', reset));

  if (_.isEmpty(active)) {
    _.defer(stop);
  }
  if (_.isEmpty(all)) {
    _.defer(reset);
  }
  _.invokeMap(active, 'stop', function() {
    _.pull(active, this);
    stop();
  });

  if (this._timeoutId) {
    clearTimeout(this._timeoutId);
    this._timeoutId = null;
  }
  return this;
};

/**
 * Starts the tunnel.
 *
 * @memberOf Tunnel
 * @param {Function} callback The function called once the tunnel is started.
 * @param {Object} Returns the tunnel instance.
 */
Tunnel.prototype.start = function(callback) {
  this.once('start', _.iteratee(callback));
  if (this.starting || this.running) {
    return this;
  }
  this.starting = true;

  logInline();
  console.log('Opening Sauce Connect tunnel...');

  var onStart = _.bind(onTunnelStart, this);
  if (this.timeout) {
    this._timeoutId = _.delay(onStart, this.timeout * 1000, false);
  }
  this.connection.start(onStart);
  return this;
};

/**
 * Removes jobs from the queue and starts them.
 *
 * @memberOf Tunnel
 * @param {Object} Returns the tunnel instance.
 */
Tunnel.prototype.dequeue = function() {
  var jobs = this.jobs,
      active = jobs.active,
      queue = jobs.queue,
      throttled = this.throttled;

  while (queue.length && (active.length < throttled)) {
    active.push(queue.shift().start());
  }
  return this;
};

/**
 * Stops the tunnel.
 *
 * @memberOf Tunnel
 * @param {Function} callback The function called once the tunnel is stopped.
 * @param {Object} Returns the tunnel instance.
 */
Tunnel.prototype.stop = function(callback) {
  this.once('stop', _.iteratee(callback));
  if (this.stopping) {
    return this;
  }
  this.stopping = true;

  logInline();
  console.log('Shutting down Sauce Connect tunnel...');

  var jobs = this.jobs,
      active = jobs.active;

  var stop = _.after(active.length, _.bind(function() {
    var onStop = _.bind(onGenericStop, this);
    if (this.running) {
      this.connection.stop(onStop);
    } else {
      onStop();
    }
  }, this));

  jobs.queue.length = 0;
  if (_.isEmpty(active)) {
    _.defer(stop);
  }
  _.invokeMap(active, 'stop', function() {
    _.pull(active, this);
    stop();
  });

  if (this._timeoutId) {
    clearTimeout(this._timeoutId);
    this._timeoutId = null;
  }
  return this;
};

/*----------------------------------------------------------------------------*/

// Cleanup any inline logs when exited via `ctrl+c`.
process.on('SIGINT', function() {
  logInline();
  process.exit();
});

// Create a web server for the current working directory.
http.createServer(function(req, res) {
  // See http://msdn.microsoft.com/en-us/library/ff955275(v=vs.85).aspx.
  if (compatMode && path.extname(url.parse(req.url).pathname) == '.html') {
    res.setHeader('X-UA-Compatible', 'IE=' + compatMode);
  }
  mount(req, res);
}).listen(port);

// Setup Sauce Connect so we can use this server from Sauce Labs.
var tunnel = new Tunnel({
  'user': username,
  'pass': accessKey,
  'id': tunnelId,
  'job': { 'retries': maxJobRetries, 'statusInterval': statusInterval },
  'platforms': platforms,
  'retries': maxTunnelRetries,
  'throttled': throttled,
  'tunneled': tunneled,
  'timeout': tunnelTimeout
});

tunnel.on('complete', function(success) {
  process.exit(success ? 0 : 1);
});

tunnel.start();

setInterval(logThrobber, throbberDelay);