EmberJS 测试与组件交互

描述

组件用于创建交互式自定义HTML元素以测试组件的方法和与组件的交互。

例子

<!DOCTYPE html>
<html>
   <head>
      <title>Emberjs  Interacting With 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">
         {{my-comp}}
   </script>

   <script type="text/x-handlebars" data-template-name="components/my-comp">
      <h2>Welcome to Ember.js</h2>
         {{#each item in model}}
            <button {{action 'updateTitle'}}>Click Me</button>
   </script>

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

         App.MyComponent = Em.Component.extend({
            title:'Tutorialspoint',
               actions:{
                  updateTitle: function(){
                     this.set('title', 'Welcome to Tutorialspoint');
                   }
                }
        });

        //These methods are used to prepare the application for testing
        //emq.globalize();
        App.setupForTesting();
        App.injectTestHelpers();
        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-comp', 'MyComponent');
        test("clicking link updates the title", function(){
           //'this.subject()' is available because we used 'moduleForComponent'
           var component = this.subject();

           // append the component to the DOM
           this.append();

           // Here, it asserts the default state
           equal(find('h2').text(), 'Tutorialspoint');
           click('button');

           // Wait for async helpers to complete
           andThen(function() {
              equal(find('h2').text(), 'Welcome to Tutorialspoint');
           });
        });
   </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_interact_component.html文件中

  • 在浏览器中打开此HTML文件。

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