Files

Brian Vaughn e1a106a071 New commit phase lifecycle: getSnapshotBeforeUpdate (#12404 )

* Implemented new getSnapshotBeforeUpdate lifecycle
* Store snapshot value from Fiber to instance (__reactInternalSnapshotBeforeUpdate)
* Use commitAllHostEffects() traversal for getSnapshotBeforeUpdate()
* Added DEV warnings and tests for new lifecycle
* Don't invoke legacy lifecycles if getSnapshotBeforeUpdate() is defined. DEV warn about this.
* Converted did-warn objects to Sets in ReactFiberClassComponent
* Replaced redundant new lifecycle checks in a few methods
* Check for polyfill suppress flag on cWU as well before warning
* Added Snapshot bit to HostEffectMask

2018-03-26 13:28:10 -07:00

npm

Use Yarn Workspaces (#11252 )

2017-10-19 00:22:21 +01:00

src

New commit phase lifecycle: getSnapshotBeforeUpdate (#12404 )

2018-03-26 13:28:10 -07:00

index.js

react-test-renderer: convert vars into let/const (#11731 )

2017-12-01 00:01:45 +00:00

package.json

Updating package versions for release 16.3.0-alpha.3

2018-03-22 12:41:43 -07:00

README.md

added link to reactjs docs for test renderer (#12293 )

2018-03-03 22:25:29 -05:00

shallow.js

react-test-renderer: convert vars into let/const (#11731 )

2017-12-01 00:01:45 +00:00

README.md

`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.