mirror of
https://github.com/zebrajr/react.git
synced 2026-01-15 12:15:22 +00:00
b43eec7eaa
* Replace Babel plugin with an ESLint plugin * Fix ESLint rule violations * Move shared conditions higher * Test formatting nits * Tweak ESLint rule * Bugfix: inside else branch, 'if' tests are not satisfactory * Use a stricter check for exactly if (__DEV__) This makes it easier to see what's going on and matches dominant style in the codebase. * Fix remaining files after stricter check
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://facebook.github.io/jest/blog/2016/07/27/jest-14.html.