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refactor(test-runner-visual-regression): migrate tests to node:test#3090

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migrate/test-runner-visual-regression-node-test
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refactor(test-runner-visual-regression): migrate tests to node:test#3090
bennypowers wants to merge 1 commit into
masterfrom
migrate/test-runner-visual-regression-node-test

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Summary

  • Migrate @web/test-runner-visual-regression tests from mocha/chai to node:test + node:assert/strict
  • 1 TS file, needs Chrome + Playwright Webkit (can't test locally, CI validates)
  • __dirname -> import.meta.dirname, ../src/ -> ../dist/
  • --experimental-strip-types for CI compat

Test plan

  • Build clean on Node 22.22.3
  • ESLint clean
  • Prettier clean
  • Code review clean
  • Tests pass in CI (needs Playwright Webkit, not available locally)

Replace mocha globals and chai assertions with node:test and
node:assert/strict.

- `../src/*.js` -> `../dist/*.js`
- `__dirname` -> `import.meta.dirname`
- `this.timeout(20000)` -> `{ timeout: 20000 }` on describe
- `expect(x).to.equal(y)` -> `assert.equal(x, y)`
- `expect(x).to.include(y)` -> `assert.ok(x.includes(y))`
- Add `--experimental-strip-types` for CI compat

Assisted-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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changeset-bot Bot commented Jun 1, 2026

⚠️ No Changeset found

Latest commit: 62ff9fc

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.

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