mirror of
https://github.com/zebrajr/react.git
synced 2026-01-15 12:15:22 +00:00
This copies modules into three separate packages instead of putting it all in React. The overlap in shared and between renderers gets duplicated. This allows the isomorphic package to stay minimal. It can also be used as a direct dependency without much risk. This also allow us to ship versions to each renderer independently and we can ship renderers without updating the main react package dependency.
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.