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refactor(rollup-plugin-polyfills-loader): migrate tests to node:test#3088

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migrate/rollup-plugin-polyfills-loader-node-test
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refactor(rollup-plugin-polyfills-loader): migrate tests to node:test#3088
bennypowers wants to merge 1 commit into
masterfrom
migrate/rollup-plugin-polyfills-loader-node-test

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@bennypowers
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Summary

  • Migrate @web/rollup-plugin-polyfills-loader tests from mocha/chai to node:test + node:assert/strict
  • 3 TS test files, import type for rollup types, named import for polyfillsLoader
  • __dirname -> import.meta.dirname, ../../src/ -> ../../dist/
  • --experimental-strip-types for CI compat

Test plan

  • 27/27 tests pass on Node 22.22.3 with NODE_OPTIONS='--no-experimental-strip-types'
  • ESLint clean
  • Prettier clean
  • Code review clean

Replace mocha globals and chai assertions with node:test and
node:assert/strict across 3 test files.

- `import type { OutputChunk, OutputAsset, RollupOptions, OutputOptions }` (type-only)
- `import { polyfillsLoader } from '../../dist/index.js'` (named, not default)
- `../../src/*.js` -> `../../dist/*.js`
- `expect(x).to.eql(y)` -> `assert.deepEqual(x, y)`
- `expect(x).to.equal(y)` -> `assert.equal(x, y)`
- `expect(action).to.throw()` -> `assert.throws(action)`
- `expect(x).to.exist` -> `assert.ok(x)`
- `this.timeout(5000)` -> `{ timeout: 5000 }` on describe
- `__dirname` -> `import.meta.dirname`
- Removed `test:update-snapshots` script
- 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: b944075

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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