reactjs-id/src/App.test.js

A function that generates unique identifiers which can be used when mapping through list of items in React.Js

import { render, screen } from '@testing-library/react';
import App from './App';

test('renders learn react link', () => {
  render(<App />);
  const linkElement = screen.getByText(/learn react/i);
  expect(linkElement).toBeInTheDocument();
});