module-for-acceptance.js

import { module } from 'qunit';
import Ember from 'ember';
import startApp from '../helpers/start-app';
import destroyApp from '../helpers/destroy-app';

const { RSVP: { Promise } } = Ember;
const map = new WeakMap();
const registryKey = {};
const contKey = {};
const ownerKey = {};

export default function(name, options = {}) {
  module(name, {
    beforeEach() {
      this.application = startApp();

      map.set(registryKey, this.application.registry);
      map.set(contKey, this.application.__container__);
      map.set(ownerKey, this.application.__container__.owner);

      if (options.beforeEach) {
        return options.beforeEach.apply(this, arguments);
      }
    },

    afterEach() {
      let afterEach = options.afterEach && options.afterEach.apply(this, arguments);
      return Promise.resolve(afterEach).then(() => {
        destroyApp(this.application);
        if (typeof window.gc === 'function') {
          
          window.gc();
          if (map.get(registryKey)) {
            console.log('we have a leak registryKey', map.get(registryKey));
          }
          if (map.get(contKey)) {
            console.log('we have a leak containerKey', map.get(contKey));
          }
          if (map.get(ownerKey)) {
            console.log('we have a leak ownerKey', map.get(ownerKey));
          }
        }
      });
    }
  });
}