jestSetup.ts

import 'jest-preset-angular/setup-jest';
import 'jest-extended';

// https://github.com/thymikee/jest-preset-angular/issues/347
import '@angular/localize/init';

// https://github.com/jsdom/jsdom/issues/1695#issuecomment-449931788
Element.prototype.scrollIntoView = jest.fn();

Object.defineProperty(window, 'CSS', { value: null });
Object.defineProperty(window, 'getComputedStyle', {
  value: () => {
    return {
      display: 'none',
      appearance: ['-webkit-appearance'],
      getPropertyValue: () => '',
    };
  },
});

Object.defineProperty(document, 'doctype', {
  value: '<!DOCTYPE html>',
});
Object.defineProperty(document.body.style, 'transform', {
  value: () => {
    return {
      enumerable: true,
      configurable: true,
    };
  },
});

Element.prototype.scrollTo = () => {};