frontend/jestSetup.jsx (8 lines of code) (raw):
// setup file
import { configure } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';
configure({ adapter: new Adapter() });
require('jest-fetch-mock').enableMocks();
const { TextEncoder, TextDecoder } = require('util');
global.TextEncoder = TextEncoder;
global.TextDecoder = TextDecoder;