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Unit tests are missing when script type="module" takes >= 3ms before describe #243

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loynoir opened this issue Oct 24, 2021 · 1 comment
Open

Unit tests are missing when script type="module" takes >= 3ms before describe #243

loynoir opened this issue Oct 24, 2021 · 1 comment

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@loynoir
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loynoir commented Oct 24, 2021

Repo

https://github.com/loynoir/reproduce-karmaMocha-237.mjs

Scenario

  • import a slow ESM module
  • and it takes ~1 second

Reproduce

$ npm install
$ npm test

Expected

Three tests

  CJS
    ✔ bar
  fastESM
    ✔ bar
  slowESM
    ✔ bar

SUMMARY:
✔ 3 tests completed

Actual

Missing unit test slowESM, but exit with code 0.

  CJS
    ✔ bar
  fastESM
    ✔ bar

SUMMARY:
✔ 2 tests completed
@loynoir
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loynoir commented Oct 24, 2021 •
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If top level await use <3ms, unit test seems OK. 🤔

https://github.com/loynoir/reproduce-karmaMocha-237.mjs/blob/master/test/fastESM.spec.mjs#L5

@loynoir loynoir mentioned this issue Oct 24, 2021
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@loynoir loynoir changed the title Unit tests are missing if XXX.spec.mjs import ESM use ~1 second Unit tests are missing when script type="module" takes >= 3ms before describe Oct 25, 2021
This was referenced Oct 28, 2021
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@loynoir