test: migrate test suite to Node.js built-in test runner#590
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Replace Jest with Node's built-in test runner (`node:test` and `node:assert`) following the same pattern used by webpack-contrib/sass-loader. Changes: - Convert all test files to native ESM using `node:test` and `node:assert` - Add `test/package.json` with `type: module` so test files run as ESM - Add `test/setup-snapshots.js` to keep snapshots in `test/__snapshots__/` - Rewrite helpers as native ESM (use `fileURLToPath`/`createRequire`) - Rename CJS fixtures and the test loader to `.cjs` - Test against the built loader in `dist/cjs.js` (`pretest` runs build) - Regenerate snapshots in node:test format - Bump minimum Node.js to `>= 22.11.0` - Remove `jest` and `babel-jest` from devDependencies
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The test runner migration bumped the engines requirement to Node.js >= 22.11.0, so older Node versions can no longer run the suite. The `--ci` flag was specific to Jest and is not understood by `node:test`.
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Replace Jest with Node's built-in test runner (
node:testandnode:assert) following the same pattern used by webpack-contrib/sass-loader.Changes:
node:testandnode:asserttest/package.jsonwithtype: moduleso test files run as ESMtest/setup-snapshots.jsto keep snapshots intest/__snapshots__/fileURLToPath/createRequire).cjsdist/cjs.js(pretestruns build)>= 22.11.0jestandbabel-jestfrom devDependencies