Update ava to the latest version 🚀

Version 0.22.0 of ava just got published.

Dependency	ava
Current Version	0.19.1
Type	devDependency

The version 0.22.0 is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of ava. Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

Release Notes

0.22.0

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

The WebStorm recipe has been updated with instructions on how to enable the Node.js inspector. d8c21a6
The app setup in the endpoint testing recipe has been fixed e28be05
The t.notThrows() example has been clarified 57f5007

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.

Commits

The new version differs by 90 commits.

dd9e8b2 0.22.0
b6eef5a Fail hard when --concurrency is set to invalid values (#1478)
57f5007 Fix typo in t.notThrows example (#1486)
d8c21a6 Update debugging with webstorm recipe (#1483)
14f7095 Implement t.log() (#1452)
e28be05 Fixed makeApp() in endpoint testing recipe (#1479)
465fcec Limit concurrency to the number of CPU cores (#1467)
4eea226 Use --verbose when testing CLI output (#1477)
a0d5b37 Simplify readme avatar URLs
31b1380 Add tests for improper-usage-messages (#1462)
a1afbe3 0.21.0
f9b865a Update safe-buffer in package-lock.json
d0fc8c9 Avoid directly using newish Buffer APIs (#1448)
9e4ee3f Upgrade concordance (#1450)
761f7f7 Update expected package.json version in readme (#1449)

There are 90 commits in total.

See the full diff

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