keydown-testing

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: 'button',
  value: '',
  keyDown(e) {
    console.log(e);
    this.set('value', e.keyCode);
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

{{my-component}}

templates.components.my-component.hbs

Value: {{if value value 'Press a Key to See the Key Code here!'}}

tests.helpers.resolver.js

import Resolver from '../../resolver';
import config from '../../config/environment';

const resolver = Resolver.create();

resolver.namespace = {
  modulePrefix: config.modulePrefix,
  podModulePrefix: config.podModulePrefix
};

export default resolver;

tests.integration.components.my-component-test.js

import { moduleForComponent, test } from 'ember-qunit';
import hbs from 'htmlbars-inline-precompile';

moduleForComponent('my-component', 'Integration | Component | my-component', {
  integration: true
});

test('renders the keyCode from the keyDown event', function(assert) {
  
	assert.expect(1);

  this.render(hbs`{{my-component}}`);
  
  let e = jQuery.Event("keydown")
  e.which = 39;
  e.keyCode = 39;
  this.$('button').trigger(e);

  assert.equal(this.$().text().trim(), 'Value: 39');
  
});

tests.test-helper.js

import resolver from './helpers/resolver';
import {
  setResolver
} from 'ember-qunit';

setResolver(resolver);

twiddle.json

{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": true
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.6.2",
    "ember-data": "2.7.0",
    "ember-template-compiler": "2.6.2"
  },
  "addons": {}
}