import Application from '../../app'; import config from '../../config/environment'; import { merge } from '@ember/polyfills'; import { run } from '@ember/runloop'; export default function startApp(attrs) { let attributes = merge({}, config.APP); attributes = merge(attributes, attrs); // use defaults, but you can override; return run(() => { let application = Application.create(attributes); application.setupForTesting(); application.injectTestHelpers(); return application; }); }