Meta Donates Jest To OpenJS Foundation
Written by Kay Ewbank   
Tuesday, 17 May 2022

Meta Open Source is transferring Jest, its open source JavaScript testing framework, to the OpenJS Foundation. Jest is the most used testing framework measured by weekly downloads (17 million a week) and by GitHub stars -  over 38,000.

Jest is an open source JavaScript testing framework that offers developers a way to create high-performance tests with minimal configuration. It was originally known as “jst” within Facebook. 

jest

It was created in 2011 when Facebook’s chat feature was rewritten in JavaScript, and made open source in 2014. Since then it has been maintained part-time by engineers at Meta, then overhauled in 2016 when the developers added features including performance, watch mode, and snapshot testing.

The project has benefited from being supported by the Jest Open Collective since 2018. This supports non-Meta employees developing and maintaining Jest, and has so far raised over $70,000 in funds for the Jest open source community. This has enabled the open source community to make major improvements to Jest, such as jest-each, inline snapshots, interactive snapshot mode, watch mode plugins, better defaults, and ESM support.

The OpenJS Foundation is an organization aimed at supporting the healthy growth of the JavaScript ecosystem. It hosts a number of open source JavaScript projects, including jQuery, Node.js, Electron, AMP, and webpack.

Jest 28 was recently published with contributions from over 60 contributors. Jest 28 adds support for a number of frequently requested including support for sharding a test run across multiple machines, package exports and the ability to customize the behavior of fake timers. The addition of support for package exports extends the facilities added in 27.3, which only supported the "main" entry point (.), and only if no main field was present in package.json.

Jest 28 is available now on the Jest website.

 jest

More Information

Jest Website

OpenJS Foundation

Related Articles

OpenJS Foundation - New Merged Foundation For JavaScript

Google AMP Joins OpenJS Foundation

JS Foundation and Node.js Foundation Progress Towards Merger

JS Foundation Supported by IBM

Microsoft Releases Playwright Test Runner

JS Test goes open source  

To be informed about new articles on I Programmer, sign up for our weekly newsletter, subscribe to the RSS feed and follow us on Twitter, Facebook or Linkedin.

Banner


It Pays To Get Certification
22/06/2022

The Open Source Jobs Report 2022, published today, reinforces the message that gaining certification is very worthwhile for developers. Meanwhile the Stack Overflow Developer Survey 2022, also publish [ ... ]



New Database Drivers for Oracle and PostgreSQL Released
16/06/2022

The PostgreSQL JDBC Team team has announced the release 42.4.0 of the JDBC driver for PostgreSQL. Meanwhile Oracle has released a Python-based driver for Oracle. Python and Java users rejoice!


More News

pythondata

 



 

Comments




or email your comment to: comments@i-programmer.info

Last Updated ( Tuesday, 17 May 2022 )