Files
react/packages/react-test-renderer
Sophie Alpert 8db2e11d97 Bump versions for 16.0.0-rc.2 (pick)
NOTE: This commit is not exactly what went out as RC2 because I forgot to push. See tag v16.0.0-rc.2 (d06680ea9e) instead. Bumping the version here so we're at the right place though.
2017-09-08 15:44:56 -07:00
..
2016-07-28 21:39:05 -07:00

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.

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: http://facebook.github.io/jest/blog/2016/07/27/jest-14.html.