office-ui-fabric-react/config/tests.js

/** Jest test setup file. */

const { configure } = require('enzyme');
const { initializeIcons } = require('@uifabric/icons');
const Adapter = require('enzyme-adapter-react-16');

// Initialize icons.
initializeIcons('');

global.requestAnimationFrame = callback => {
  setTimeout(callback, 0);
};

// Configure enzyme.
configure({ adapter: new Adapter() });