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T

Chris Tate bfb360a659 Add a runner for Node's test/parallel files

tests/node-parallel/run.mjs builds files from a Node.js checkout's
test/parallel with scriptc, runs each executable in that directory, and
compares its exit status with Node's, writing a pass, fail or refused
verdict and the first error line per file (results.json, results.md).
--common minimal (the default) runs the files against a minimal
test/common (common/index.cjs, common/wpt.cjs) whose helpers keep Node's
semantics, so a verdict measures the module under test; --common node
uses Node's own test/common.

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common

Add a runner for Node's test/parallel files

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README.md

Add a runner for Node's test/parallel files

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run.mjs

Add a runner for Node's test/parallel files

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README.md

Node test/parallel files

run.mjs builds files from a Node.js checkout's test/parallel with scriptc, runs each executable in that directory, and compares its exit status with Node's. It records a verdict per file: pass (same exit status), fail (different exit status), or refused (the build failed), with the first error line.

git clone --depth 1 --branch v24.22.0 https://github.com/nodejs/node /path/to/node
node tests/node-parallel/run.mjs --node /path/to/node --pattern '^test-(url-|whatwg-url-|querystring)'

Options:

--node: a Node.js checkout, or its test directory. Use the version in .node-version.
--pattern: a regular expression over file names in test/parallel.
--common: minimal (the default) or node.
- minimal copies the selected files into <out>/tree/test/parallel and uses common/index.cjs and common/wpt.cjs from this directory as test/common/index.js and test/common/wpt.js, with the checkout's test/fixtures and test/common/fixtures.js. The minimal common has the helpers these files use (mustCall, mustNotCall, skip, expectWarning, invalidArgTypeHelper, spawnPromisified, hasIntl, isWindows, ...) with Node's semantics, so a verdict measures the module under test rather than Node's full test/common.
- node builds the files in place against Node's own test/common.
--out: where executables and results go (default node_modules/.cache/scriptc-node-parallel).
--cli: the scriptc CLI entry (default packages/cli/dist/main.js).
--jobs: concurrent files (default 4).

Node runs each file with its // Flags: line. Results are written to <out>/results.json and <out>/results.md.

Before a lane relies on the minimal common, run its files under Node in <out>/tree/test/parallel: they should all pass there.