EmberJS 测试组件设置

2018-01-04 14:14 更新

描述

要测试Ember应用程序，您需要通过在html文件中使用div标签添加测试应用程序，如下所示：

<div id ="ember-testing"></div>

要渲染您的应用程序，Ember使用此id元素，如下所示：

App.rootElement = '#ember-testing'

例子

<!DOCTYPE html>
<html>
   <head>
      <title>Emberjs  Testing Components</title>
      <!-- CDN's -->
      <script src="https://cdnjs.cloudflare.com/ajax/libs/handlebars.js/3.0.1/handlebars.min.js"></script>
      <script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
      <script src="https://builds.emberjs.com/tags/v1.10.0-beta.3/ember-template-compiler.js"></script>
      <script src="https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.10.0/ember.prod.js"></script>
      <script src="https://code.jquery.com/qunit/qunit-1.18.0.js"></script>
      <script src="https://rawgit.com/rwjblue/ember-qunit-builds/master/ember-qunit.js"></script>
      <script src="https://builds.emberjs.com/release/ember.debug.js"></script>
      <script src="https://builds.emberjs.com/beta/ember-data.js"></script>
   </head>
<body>
   <div id="qunit"></div>
   <div id="ember-testing"></div>

   <script type="text/x-handlebars">
      <h2>Welcome to Ember.js</h2>
         {{outlet}}
   </script>

   <script type="text/x-handlebars" data-template-name="index">
      <ul>
         {{#each item in model}}
            <li>{{my-color name=item}}</li>
         {{/each}}
      </ul>
   </script>

   <script type="text/x-handlebars" data-template-name="components/my-color">
       My Color: {{name}}
   </script>

   <script type="text/javascript">
         //Creates an instance of Ember.Application and assign it to a global variable
         App = Ember.Application.create();

         //Customize the behavior of a route by creating an 'Ember.Route' subclass
         App.IndexRoute = Ember.Route.extend({
            //If you want to render a template with the route handler, implement the 'model' hook
            model: function() {
               return ['red', 'yellow', 'blue'];
            }
         });

         App.myColorComponent = Ember.Component.extend({
            templateName: 'my-color',
            style: function() {
               return 'color: ' + this.get('name') + ';';
            }.property('name')
         });

        //These methods are used to prepare the application for testing
        //emq.globalize();
        App.setupForTesting();
        App.rootElement = '#ember-testing';   //Ember.js applications's root element
        setResolver(Ember.DefaultResolver.create({ namespace: App }));

        //Test the component done using the 'moduleForComponent' helper and will find the component by name(my-color)
        moduleForComponent('my-color');
           test("changing colors", function(){
              //'this.subject()' is available because we used 'moduleForComponent'
              var component = this.subject();
        //This is an async function and should be wrapped using 'Ember.run'
        Ember.run(function(){
          component.set('name','red');
        });

        //First call to $() renders the component
        equal(this.$().attr('style'), 'color: red;');

        Ember.run(function(){
           component.set('name', 'green');
        });
        equal(this.$().attr('style'), 'color: green;');
        });

        test("template", function(){
           var component = this.subject();   //'this.subject()' is available because we used 'moduleForComponent'
           //First call to $() renders the component
           equal($.trim(this.$().text()), 'My Color:');
              //This is another async function and should be wrapped using 'Ember.run'
              Ember.run(function(){
                 component.set('name', 'green');
              });
           equal($.trim(this.$().text()), 'My Color: green');
        });
   </script>
</body>
</html>

输出

让我们执行以下步骤，看看上面的代码如何工作：

将上面的代码保存在testing_setup.html文件中
在浏览器中打开此HTML文件。

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