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test: add defer import case for #19219#21292

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test-claude/webpack-pr-19219-4mh8ue
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test: add defer import case for #19219#21292
hai-x wants to merge 1 commit into
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test-claude/webpack-pr-19219-4mh8ue

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@hai-x

@hai-x hai-x commented Jun 27, 2026

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Summary

What kind of change does this PR introduce?

Add defer import test case for #19219.

Did you add tests for your changes?

Yes

Does this PR introduce a breaking change?

No

If relevant, what needs to be documented once your changes are merged or what have you already documented?

No

Use of AI

Yes

@changeset-bot

changeset-bot Bot commented Jun 27, 2026

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⚠️ No Changeset found

Latest commit: 58666af

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

@github-actions

github-actions Bot commented Jun 27, 2026

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This PR is packaged and the instant preview is available (58666af).

Install it locally:

  • npm
npm i -D webpack@https://pkg.pr.new/webpack@58666af
  • yarn
yarn add -D webpack@https://pkg.pr.new/webpack@58666af
  • pnpm
pnpm add -D webpack@https://pkg.pr.new/webpack@58666af

@codecov

codecov Bot commented Jun 27, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.86%. Comparing base (54fa902) to head (58666af).

Additional details and impacted files
@@           Coverage Diff           @@
##             main   #21292   +/-   ##
=======================================
  Coverage   92.86%   92.86%           
=======================================
  Files         594      594           
  Lines       64980    64980           
  Branches    18155    18155           
=======================================
  Hits        60345    60345           
  Misses       4635     4635           
Flag Coverage Δ
css-parsing 28.63% <ø> (ø)
html5lib 31.08% <ø> (ø)
integration 88.99% <ø> (ø)
test262 45.54% <ø> (ø)
unit 43.01% <ø> (ø)

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

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:
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@hai-x hai-x force-pushed the test-claude/webpack-pr-19219-4mh8ue branch from a3a86b0 to 58666af Compare June 27, 2026 16:57
@hai-x hai-x marked this pull request as ready for review June 27, 2026 16:57
@codspeed-hq

codspeed-hq Bot commented Jun 27, 2026

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Merging this PR will not alter performance

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 4 improved benchmarks
❌ 2 regressed benchmarks
✅ 138 untouched benchmarks

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Memory benchmark "asset-modules-inline", scenario '{"name":"mode-development-rebuild","mode":"development","watch":true}' 381.2 KB 1,194.8 KB -68.09%
Memory benchmark "wasm-modules-sync", scenario '{"name":"mode-development-rebuild","mode":"development","watch":true}' 131.8 KB 358.5 KB -63.24%
Memory benchmark "side-effects-reexport", scenario '{"name":"mode-development-rebuild","mode":"development","watch":true}' 860.2 KB 130 KB ×6.6
Memory benchmark "many-modules-esm", scenario '{"name":"mode-development","mode":"development"}' 1.9 MB 1.2 MB +68.5%
Memory benchmark "wasm-modules-async", scenario '{"name":"mode-development-rebuild","mode":"development","watch":true}' 250.2 KB 190.2 KB +31.53%
Memory benchmark "many-chunks-esm", scenario '{"name":"mode-production","mode":"production"}' 11.4 MB 8.8 MB +30.22%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.


Comparing test-claude/webpack-pr-19219-4mh8ue (58666af) with main (54fa902)

Open in CodSpeed

@github-actions

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Types Coverage

Coverage after merging test-claude/webpack-pr-19219-4mh8ue into main will be
99.36%
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