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Brian Vaughn ea2af878cc Root API should clear non-empty roots before mounting (#18730 )

* Root API should clear non-empty roots before mounting

Legacy render-into-subtree API removes children from a container before rendering into it. The root API did not do this previously, but just left the children around in the document.

This commit adds a new FiberRoot flag to clear a container's contents before mounting. This is done during the commit phase, to avoid multiple, observable mutations.

2020-04-28 13:07:42 -07:00

npm

Remove Node shallow builds (#18157 )

2020-02-27 14:11:40 -08:00

src

Root API should clear non-empty roots before mounting (#18730 )

2020-04-28 13:07:42 -07:00

index.js

Convert the rest of react-dom and react-test-renderer to Named Exports (#18145 )

2020-02-26 18:04:32 -08:00

package.json

Revert accidental changes to package.json (#18348 )

2020-03-19 13:16:37 -07:00

README.md

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

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

shallow.js

Replace ReactShallowRenderer with a dependency (#18144 )

2020-02-27 18:10:25 +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.