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✨(vitest) Introduce new built-in fuzz #4200

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✨(vitest) Introduce new built-in fuzz #4200

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@dubzzz dubzzz commented Sep 5, 2023

The new built-in is fuzz. It came out of a discussion started on Vitest's official repository.

Compared to previously proposed it.prop and related, it uses the APIs offered by Vitest to plug itself. It feels more aligned with the phylosophy currently adopted by the Vitest with a dedicated keywork per kind of runner.

It will probably replace the it.prop and related really soon.

Category:

  • ✨ Introduce new features
  • 📝 Add or update documentation
  • ✅ Add or update tests
  • 🐛 Fix a bug
  • 🏷️ Add or update types
  • ⚡️ Improve performance
  • Other(s): ...

Potential impacts:

  • Generated values
  • Shrink values
  • Performance
  • Typings
  • Other(s): ...

The new built-in is `fuzz`. It came out of a discussion started on Vitest's official repository.

Compared to previously proposed `it.prop` and related, it uses the APIs offered by Vitest to plug itself. It feels more aligned with the phylosophy currently adopted by the Vitest with a dedicated keywork per kind of runner.

It will probably replace the `it.prop` and related really soon.
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dubzzz commented Sep 5, 2023

Still to do in order to merge this PR:

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This pull request is automatically built and testable in CodeSandbox.

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Latest deployment of this branch, based on commit 7927040:

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codecov bot commented Sep 5, 2023

Codecov Report

Merging #4200 (7927040) into main (341305b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #4200   +/-   ##
=======================================
  Coverage   94.71%   94.71%           
=======================================
  Files         210      210           
  Lines        5958     5958           
  Branches     1370     1370           
=======================================
  Hits         5643     5643           
  Misses        299      299           
  Partials       16       16           
Flag Coverage Δ
unit-tests 94.71% <ø> (ø)
unit-tests-16.x-Linux 94.71% <ø> (ø)
unit-tests-18.x-Linux 94.71% <ø> (ø)
unit-tests-latest-Linux 94.69% <ø> (-0.02%) ⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

@dubzzz dubzzz added the 🧪 Experiment Performing some experiments for potential future features implying deep changes label Oct 16, 2023
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