This script tests a simple emberjs application with casperjs.

gistfile1.js

var casper = require('casper').create({
    verbose: true,
    logLevel: 'debug',
});

var url = "file:///media/data/projects/personnal/js/ember.js/simple/index.html";

// a callback that ensures the runloop is flushed before an assert is run. Based on gist...
/*casper.test.emberDidRender = function(cbk){
  casper.evaluate(function() {
    return window.Ember.run.end();
  });
  cbk.call(casper)
};*/

casper.start(url, function() {
   // test the page title
   this.test.assertTitleMatch(/Simple Ember.js Application/, 'Must find the correct title for the Simple application');

   // test if we found the input field
   this.test.assertExists('input[id="compteur_field"]', 'Must find the textfield for the Simple application');

   // test if we found the minus button
   this.test.assertExists('button[id="minus_button"]', 'Must find the minus button for the Simple application');

   // test if we found the plus button
   this.test.assertExists('button[id="plus_button"]', 'Must find the plus button for the Simple application');
});

// first method
casper.then(function() {
   this.click('button#plus_button');
   
   var result = this.evaluate(function() {
      return document.querySelector('input#compteur_field').value;
   });
   this.test.assertEquals(result, 2, 'The value must be incremented by 2');
});

// second method
casper.then(function() {
   var result = this.evaluate(function() {
      $('#plus_button').click();

      return $('#compteur_field').val();
   });

   //this.test.emberDidRender(function(){
      this.test.assertEquals(result,  2, 'The value must be 2');
   //});
});

casper.run(function() {
    this.exit();
});