• ❌ continuous-integration/travis-ci/push: The Travis CI build failed (Details).

Experimental t.try() assertions

Thanks to the amazing work and patience of @qlonik we're shipping a new assertion! t.try() lets you perform assertions and decide whether to commit or discard their outcome. All kinds of interesting things can be built on top of this, from fuzzy testers to new test interfaces and more.

We're excited to get this out there, but it's not quite done yet. For now you have to opt in to this new feature. Being opt-in, we may make changes (breaking ones even!) until we feel this is stable.

To opt in, configure AVA with the following:

package.json:

{
  "ava": {
    "nonSemVerExperiments": {
      "tryAssertion": true
    }
  }
}

ava.config.js:

export default {
	nonSemVerExperiments: {
		tryAssertion: true
	}
};

We'd love to hear your feedback. Please join us in this issue: #2250

Also, if you're looking to help out with the remaining issues so that we can ship this without the opt-in, have a look at this project: https://github.com/orgs/avajs/projects/1

Thanks again @qlonik!

Other changes

• We've added the common pitfall of sharing variables across asynchronous tests 49b202f
• We've updated the endpoint testing recipe to focus on the concept, not specific libraries 67e4dea

All changes

v2.3.0...v2.4.0

Thanks

Thank you @jeremenichelli, @jamesgeorge007, @dongjae93, @qlonik and @tryzniak. We couldn't have done this 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.

The new version differs by 14 commits.

• 05f077e 2.4.0
• ca4eff7 Bump dependencies
• 67e4dea Update endpoint testing recipe to focus on the concept, not libraries
• 4fdb02d Implement experimental t.try() assertion
• 782c2d8 Run some tests on Travis still
• 4c890d9 Add OpenCollective link to README
• 03c1509 Groundwork to support experimental features
• 0a5c933 Remove unnecessary flag from tap invocation
• e598c30 Detect whether error source is on a different drive (on Windows)
• fb0c536 Fix serialize-error tests on Windows with GitHub Actions
• 53d7fe1 Allow some fixtures to pass linting when XO is installed without lockfile
• 11771ba Run CI using GitHub Actions
• 5538bdc Replace an indexOf() by includes()
• 49b202f Add shared variables & asynchronous tests to common pitfalls

See the full diff

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