setupJest.js

'use strict';

require('core-js/es6/reflect');
require('core-js/es7/reflect');
require('zone.js/dist/zone.js');
require('zone.js/dist/proxy.js');
require('zone.js/dist/sync-test');
require('zone.js/dist/async-test');
require('zone.js/dist/fake-async-test');
require('jest-zone-patch');
const AngularSnapshotSerializer = require('./AngularSnapshotSerializer');
const HTMLCommentSerializer = require('./HTMLCommentSerializer');
const getTestBed = require('@angular/core/testing').getTestBed;
const BrowserDynamicTestingModule = require('@angular/platform-browser-dynamic/testing').BrowserDynamicTestingModule;
const platformBrowserDynamicTesting = require('@angular/platform-browser-dynamic/testing').platformBrowserDynamicTesting;

getTestBed().initTestEnvironment(
  BrowserDynamicTestingModule,
  platformBrowserDynamicTesting()
);