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@novemberborn novemberborn released this 15 Aug 07:40
dd9e8b2

There's but a few commits in this release, but we've made a big change to how AVA manages its test workers 👩🏼‍🔬👨🏼‍🏭👨🏿‍🚀👨🏻‍⚕️👩🏽‍💼.

Highlights

Default concurrency

We now cap the number of concurrent workers to the number of CPU cores on your machine. Previously AVA started workers for each test file, so if you had many test files this could actually bring things to a halt. 465fcec

You can still customize the concurrency by setting the concurrency option in AVA's package.json configuration, or by passing the --concurrency flag. We've also beefed up input validation on that flag. b6eef5a

Unfortunately this does change how test.only() behaves. AVA can no longer guarantee that normal tests won't run. For now, if you want to use test.only(), you should run tests from just that file. We have an open issue to add an --only flag, which will ensure that AVA runs just the test.only() tests. If you'd like to help us with that please head on over to #1472.

t.log()

We've also added t.log(), which lets you print a log message contextually alongside the test result, instead of immediately printing it to stdout like console.log. 14f7095

Miscellaneous

All changes

v0.21.0...v0.22.0

Thanks

💖 Huge thanks to @abouthiroppy, @ydaniv, @nowells, @melisoner2006, @clayzermk1 and @tdeschryver for helping us with this release. We couldn’t have done it without you!

Get involved

We welcome new contributors. AVA is a friendly place to get started in open source. We have a great article on getting started contributing and a comprehensive contributing guide.