Ember IntlEmber Handlebar 助手

Ember Intl 提供 Ember Handlebar 助手，并且可以把本地化服务注入到视图、路径、模块、控制器和组件中。它提供一个格式化日期、数字、字符串消息的方法。

示例代码：

/** 
* unit test for testing index view which contains the helpers: 
`format-message` and `intl-get` 
* 
* unit/views/index-test.js */
import Ember from 'ember';
import { registerIntl } from '../../../initializers/ember-intl';
import {
  moduleFor,
  test
} from 'ember-qunit';

moduleFor('view:index', 'IndexView', {
  needs: [    
      'template:index',    
      'adapter:-intl-adapter',    
      'service:intl',    
      'helper:intl-get',    
      'formatter:format-message',    
      'locale:en',    
      'locale:es'
  ],  
setup: function () {    
    // depending on your test library, container will be hanging off `this`
    // or otherwise passed in as the first argument
    var container = this.container || arguments[0];    
    // injects the service on to all logical factory types
    registerIntl(container);    
    // set the initial intl service locale to `en-us`
    var intl = container.lookup('service:intl');
    intl.set('locales', 'en');
  }
});test('index renders', function () {
  expect(2);  var view = this.subject({
    context: Ember.Object.create({
      firstName: 'Tom'
    })
  });  var intl = view.get('intl');  // render view
  Ember.run(view, 'appendTo', '#qunit-fixture');

  equal(view.$().text().trim(), "hello Tom");

  Ember.run(function () {
    intl.set('locales', 'es');
  });

  equal(view.$().text().trim(), "hola Tom");  // destroy view
  Ember.run(view, 'destroy');
});