jestSetup.jsx (8 lines of code) (raw):

// setup file import { configure } from 'enzyme'; import Adapter from 'enzyme-adapter-react-16'; configure({ adapter: new Adapter() }); // ensure that global TextEncoder is present, needed to Jose to avoid breaking on ReferenceError: TextEncoder is not defined const { TextEncoder, TextDecoder } = require('util'); global.TextEncoder = TextEncoder; global.TextDecoder = TextDecoder;