react-test-renderer
DefinitelyTyped icon, indicating that this package has TypeScript declarations provided by the separate @types/react-test-renderer package

18.3.1 • Public • Published

react-test-renderer

This package provides an experimental React renderer that can be used to render React components to pure JavaScript objects, without depending on the DOM or a native mobile environment.

Essentially, this package makes it easy to grab a snapshot of the "DOM tree" rendered by a React DOM or React Native component without using a browser or jsdom.

Documentation:

https://reactjs.org/docs/test-renderer.html

Usage:

const ReactTestRenderer = require('react-test-renderer');

const renderer = ReactTestRenderer.create(
  <Link page="https://www.facebook.com/">Facebook</Link>
);

console.log(renderer.toJSON());
// { type: 'a',
//   props: { href: 'https://www.facebook.com/' },
//   children: [ 'Facebook' ] }

You can also use Jest's snapshot testing feature to automatically save a copy of the JSON tree to a file and check in your tests that it hasn't changed: https://jestjs.io/blog/2016/07/27/jest-14.html.

Package Sidebar

Install

npm i react-test-renderer

Homepage

reactjs.org/

Weekly Downloads

5,041,568

Version

18.3.1

License

MIT

Unpacked Size

1.51 MB

Total Files

9

Last publish

Collaborators

  • zpao
  • gnoff
  • fb
  • sophiebits
  • react-bot