👷(jest) Move build chain to ESM #5165
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**⚠️ Minor breaking change** The build chain of `@fast-check/jest` has been CommonJS-based since day 1. With ESM moving forward in the ecosystem, it's time to move ourselves to the new standard and adapt our build chains to ESM. Unfortunately it may have some subtle impacts on our users as our package will not be a CJS one offering a ESM fallback anymore. I will rather be the opposite: an ESM package with a fallback to CJS. It implies that we moved ESM related files closer to the root of the package (we could have kept them in esm/) and moved the CJS ones further in the file structure (we had to move them). Another subtle impact is that it would impose our users to run at least Node ≥12.17.0. But it was already a need for this package due to its dependencies. As such we consider it as a breaking change.
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👋 A preview of the new documentation is available at: http://66a427f176df8d7a5a5a270b--dubzzz-fast-check.netlify.app |
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #5165 +/- ##
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Coverage 94.80% 94.80%
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Files 230 230
Lines 9260 9260
Branches 2715 2714 -1
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Hits 8779 8779
Misses 481 481
Flags with carried forward coverage won't be shown. Click here to find out more. ☔ View full report in Codecov by Sentry. |
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Description first opened as #4590
The build chain of
@fast-check/jesthas been CommonJS-based since day 1. With ESM moving forward in the ecosystem, it's time to move ourselves to the new standard and adapt our build chains to ESM.Unfortunately it may have some subtle impacts on our users as our package will not be a CJS one offering a ESM fallback anymore. I will rather be the opposite: an ESM package with a fallback to CJS. It implies that we moved ESM related files closer to the root of the package (we could have kept them in esm/) and moved the CJS ones further in the file structure (we had to move them).
Another subtle impact is that it would impose our users to run at least Node ≥12.17.0. But it was already a need for this package due to its dependencies.
As such we consider it as a breaking change.
Checklist — Don't delete this checklist and make sure you do the following before opening the PR
yarn bumpand flag the impacts properlyAdvanced