import { render } from '@testing-library/react'; import 'mutationobserver-shim'; import React, { Suspense } from 'react'; import { BrowserRouter as Router } from 'react-router-dom'; import App from './App'; it('renders welcome message', async () => { const { findByText } = render( loading}> , ); const text = await findByText('Grab a slick name for your new app'); expect(text).toBeTruthy(); });