EmberJS-Testing User Interaction

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Testing User Interaction

User can interact with the page by using the helpers and check for the changes in the DOM. When an unauthorized user try to access a particular URL, then you can make him to be transitioned to a login page.

Example

<!DOCTYPE html>
<html>
   <head>
      <title>Emberjs Testing Interaction</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>
      <!-- CDN's for testing Ember.js programs --<
      <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>

      <!-- These are used to link different url's -->
      <script type="text/x-handlebars">
         <ul>
            <li>{{#link-to "index"}}Login 1{{/link-to}}</li>
            <li>{{#link-to "Login2"}}Login 2{{/link-to}}</li>
         </ul>
         {{/outlet}}
      </script>

      <script type="text/x-handlebars" data-template-name="index">
         <p>This is login 1</p>
      </script>

      <!-- Display this line if not authenticated -->
      <script type="text/x-handlebars" data-template-name="login">
         <p>This is my Login</p>
      </script>

      <script type="text/x-handlebars" data-template-name="Login2">
         <p>This is login 2</p>
      </script>

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

         //The map method of application's router can be invoked to define URL mappings
         App.Router.map(function() {
            this.route('login');
            this.route('Login2');
         });

         // 'Login2Route' should render by defining a route with the same name as the template
         App.Login2Route = Ember.Route.extend({
            beforeModel: function() {
               var myval = this.modelFor('application');
               //If we pass an empty object, then it create a link to a route using 'transitionTo' method
               if (Ember.isEmpty(myval)) {
                  this.transitionTo('login');
               }
            }
         });

         //These methods are used to prepare the application for testing
         App.setupForTesting();
         App.injectTestHelpers();
         App.rootElement = '#ember-testing';   //Ember.js applications's root element

         module('Emberjs', {
            setup: function() {
               App.reset();   //After each test, reset the state of the application
            }
         });

         //Here, it tests the workflow of an application
         test('redirect to login if not authenticated', function() {
            visit('/');
            click('.Login2');

            //'andThen' helper wait for the preceding asynchronous test helpers to complete
            andThen(function() {
               equal(currentRouteName(), 'login');
            });
         });
      </script>
   </body>
</html>

Output

Let's carry out the following steps to see how above code works −

  • Save above code in testing_userinteraction.htm file

  • Open this HTML file in a browser.

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