import {showGlobalErrorMessage} from './bootstrap.js'; test('showGlobalErrorMessage', () => {  document.body.innerHTML = '<div class="page-content"></div>';  showGlobalErrorMessage('test msg 1');  showGlobalErrorMessage('test msg 2');  showGlobalErrorMessage('test msg 1'); // duplicated   expect(document.body.innerHTML).toContain('>test msg 1 (2)<');  expect(document.body.innerHTML).toContain('>test msg 2<');  expect(document.querySelectorAll('.js-global-error').length).toEqual(2);});