text: 'use strict';
  
  var MockL10n = {
    get: function get(key, params) {
      return key;
    },
    localize: function localize(element, l10nId){},
    setAttributes: function localize(element, l10nId){},
    ready: function(callback) {
      callback();
    },
    once: function(callback) {
      callback();
    },
    DateTimeFormat: function() {},
    translate: function() {},
    language: {
      code: 'en-US'
    }
  };
  
  MockL10n.DateTimeFormat.prototype = {
    localeFormat: function mockLocaleFormat(time, strFormat) {
      return '' + time;
    }
  };
  