npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2025 – Pkg Stats / Ryan Hefner

@react-three/test-renderer

v9.0.1

Published

Test Renderer for react-three-fiber

Downloads

61,517

Readme

React Three Test Renderer ⚛️🔼🧪

Version Downloads Twitter Twitter Discord

@react-three/test-renderer is a React testing renderer for threejs in node.

yarn add @react-three/fiber three
yarn add -D @react-three/test-renderer

The problem

You've written a complex and amazing webgl experience using @react-three/fiber and you want to test it to make sure it works even after you add even more features.

You go to use react-dom but hang on, THREE elements aren't in the DOM! You decide to use @react-three/test-renderer you can see the container & the canvas but you can't see the tree for the scene!? That's because @react-three/fiber renders to a different react root with it's own reconciler.

The solution

You use @react-three/test-renderer ⚛️-🔼-🧪, an experimental React renderer using @react-three/fiber under the hood to expose the scene graph wrapped in a test instance providing helpful utilities to test with.

Essentially, this package makes it easy to grab a snapshot of the Scene Graph rendered by three without the need for webgl & browser.


Usage

RTTR is testing library agnostic, so we hope that it works with libraries such as jest, jasmine etc.

import ReactThreeTestRenderer from '@react-three/test-renderer'

const renderer = await ReactThreeTestRenderer.create(
  <mesh>
    <boxGeometry args={[2, 2]} />
    <meshStandardMaterial
      args={[
        {
          color: 0x0000ff,
        },
      ]}
    />
  </mesh>,
)

// assertions using the TestInstance & Scene Graph
console.log(renderer.toGraph())

API