@mhy/config/jest/setup.js

> This documentation is not complete. It's in progress and it's a BETA version. Use the tool at your own risk.

import 'babel-polyfill'
import Enzyme, { shallow, render, mount } from 'enzyme'
import 'jest-enzyme'
import Adapter from 'enzyme-adapter-react-16'
import 'jest-canvas-mock'
import 'jest-styled-components'
import fetch from 'jest-fetch-mock'

Enzyme.configure({ adapter: new Adapter() })

global.shallow = shallow
global.render = render
global.mount = mount
global.fetch = fetch