PDFEngineDemoUI/src/setupTests.js

import {configure} from 'enzyme';
import Adapter from '@wojtekmaj/enzyme-adapter-react-17';

configure({adapter: new Adapter()});

if (global.document) {
  document.createRange = () => ({
    setStart: () => {},
    setEnd: () => {},
    commonAncestorContainer: {
      nodeName: 'BODY',
      ownerDocument: document,
    },
  });
}