gistfile1.js

Ember.Test.registerHelper('select', function(app, selector, context, label) {
  if (typeof label === 'undefined') {
    label = context;
    context = null;
  }
  var $select = findWithAssert(selector, context);
  var $option = findWithAssert('option:contains(' + label + ')', $select);
  Ember.run(function(){
    $select.val($option.prop('value')).change();
  });
  return wait();
});