chromium/src/third_party/blink/perf_tests/speedometer/resources/todomvc/architecture-examples/emberjs-debug/source/tests/helpers/start-app.js

import Ember from 'ember';
import Application from '../../app';
import config from '../../config/environment';

export default function startApp(attrs) {
    let application;

    let attributes = Ember.merge({}, config.APP);
    attributes = Ember.merge(attributes, attrs); // use defaults, but you can override;

    Ember.run(() => {
        application = Application.create(attributes);
        application.setupForTesting();
        application.injectTestHelpers();
    });

    return application;
}