cra-template-rb/template/internals/startingTemplate/src/setupTests.ts

The official React Boilerplate template for Create React App

// jest-dom adds custom jest matchers for asserting on DOM nodes.
// allows you to do things like:
// expect(element).toHaveTextContent(/react/i)
// learn more: https://github.com/testing-library/jest-dom
import '@testing-library/jest-dom/extend-expect';

import 'react-app-polyfill/ie11';
import 'react-app-polyfill/stable';

import 'jest-styled-components';