Jest 29: Snapshot format changes · Jest
Jest 29 is here, just a few short months after Jest 28. As mentioned in the Jest 28 blog post, this version contains just a couple of breaking changes, in order to make the upgrade as smooth as possible. The only breaking changes that should be noticeable are: Node versions 12 and 17 are dropped, both of which are EOL The snapshotFormat property is changed to: + snapshotFormat: { + escapeString: f
Jest 28: Shedding weight and improving compatibility 🫶 · Jest
Jest 28 is finally here, and it comes with some long requested features such as support for sharding a test run across multiple machines, package exports and the ability to customize the behavior of fake timers. These are just some personal highlights, and we'll be highlighting more in this blog post. Additionally, as announced in the Jest 27 blog post last year, we have removed some packages that
Jest 27: New Defaults for Jest, 2021 edition ⏩ · Jest
In the Jest 26 blog post about a year ago, we announced that after two major releases with few breaking changes, Jest 27 will flip some switches to set better defaults for projects that are new or can migrate smoothly. This gives us the opportunity to remove some packages from the default distribution of Jest 28 and publish them as separately installable and pluggable modules instead. Everyone on
Jest 26: Tick Tock · Jest
When we started rebuilding Jest five years ago our goal was to provide a batteries-included zero-configuration test runner that is approachable for beginners, extensible for almost all testing use cases and scalable to large projects. One of the instrumental releases was Jest 15 which tied everything together and provided good defaults that allowed people to run Jest often without any setup. Howev
Using with puppeteer · Jest
Generating code coverage for test files using Puppeteer is currently not possible if your test uses page.$eval, page.$$eval or page.evaluate as the passed function is executed outside of Jest's scope. Check out issue #7962 on GitHub for a workaround. Use jest-puppeteer Preset Jest Puppeteer provides all required configuration to run your tests using Puppeteer. First, install jest-puppeteer
Jest 24: 💅 Refreshing, Polished, TypeScript-friendly · Jest
Today we are happy to announce the next major release of Jest - version 24! It's been 4 months since the last minor release, and 8 months since Jest 23, so this upgrade is a big one, with something for everyone! Highlights include built-in support for TypeScript by upgrading the Jest internals to Babel 7, fixing some long-standing issues with missing console output and performance issues when comp
Jest 23: 🔥 Blazing Fast Delightful Testing · Jest
Today we are excited to announce Jest 23, our largest major release to date! Together with over 100 contributors, we've shipped a ton of features and bug fixes. Thank you to everyone in the community for helping make JavaScript Testing Delightful. We would also like to welcome both Babel and webpack to the Jest community! After converting from Mocha to Jest 23 Beta, webpack saw their total test su
Jest 22: Refinements & Custom Runners · Jest
Today we are announcing a new major version of Jest which refines almost all parts of Jest to provide a more solid testing foundation. Together with the Jest community we made a number of changes across the board that will help you get more out of Jest. We are also graduating the custom runners feature out of the experimental stage and added a new package, jest-worker, for parallelizing work acros
Jest 20: 💖 Delightful Testing & 🏃🏽 Multi-Project-Runner · Jest
A few months ago we announced Jest 19 which came with major new features and was the biggest Jest release until today. Jest 20 has twice the amount of changes compared to the previous version, features a complete rewrite of the test runner, adds new testing APIs. The new release enables a new level of customization and configuration for projects all while making it effortless to upgrade. Beyond Pa
🃏 Jest 19: Immersive Watch Mode & Test Platform Improvements · Jest
Today we are pleased to ship version 19 of the Jest testing platform. It's the biggest Jest release we have shipped so far and we are quite excited to show you what we've built over the last two months: Immersive Watch Mode We completely rewrote the watch mode to make it instant and more extensible. As a result, the experience of using it really is immersive: tests re-run instantly after a file c
Jest 15.0: New Defaults for Jest · Jest
We spent the past year making Jest faster, easier to configure, added tons of features and built snapshot testing. However, there were two areas where we invested very little: the CLI output and user experience. With Jest 15 we are changing the framework radically to make it easier to use both for beginners and experienced users. We are excited that our investment in Jest is now paying off: we can
Jest 14.0: React Tree Snapshot Testing · Jest
One of Jest's philosophies is to provide an integrated “zero-configuration” experience. We want to make it as frictionless as possible to write good tests that are useful. We observed that when engineers are provided with ready-to-use tools, they end up writing more tests, which in turn results in stable and healthy code bases. One of the big open questions was how to write React tests efficiently
Jest 11.0 · Jest
Today we're announcing a switch to major revisions for Jest with Jest 11.0 being the first major release. Jest has been used by Facebook engineers and on our continuous integration systems for years and we believe Jest has been way beyond a “1.0 release” for a long time. This is similar to a change the React team has made. If you are using Jest 0.9 or Jest 0.10 the upgrade should be seamless. All
JavaScript Unit Testing Performance · Jest
Jest is running thousands of tests at Facebook at all times, either through continuous integration or invoked by engineers manually during development. This worked well for years even as the people working on Jest moved on to other projects within Facebook. As engineers added more and more tests though, we noticed the performance of Jest wasn't going to scale. Additionally, in the last year the Ja
Jest
Jest is a delightful JavaScript Testing Framework with a focus on simplicity.
1
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
