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