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Chris Tate d813fdafd3 Compare termination signals and resolve the Node checkout path in the test/parallel runner

A run that a signal ends has a null exit code, so the runner recorded a
pass when Node and the executable ended by different signals, or when one
ended by a signal and the other with an exit code compared as null. The
verdict now compares both the exit code and the signal (verdict.mjs), and
records Node's signal in nodeExit as it does for the executable.

A relative --node path also made the minimal lane's fixtures symlink
relative to the copied tree, where it does not resolve. The checkout path
is now resolved first.

tests/harness/node-parallel-runner.test.ts covers both: the termination
comparison, and a relative --node path whose fixtures resolve from the
minimal tree.

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common

Add a runner for Node's test/parallel files

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README.md

Compare termination signals and resolve the Node checkout path in the test/parallel runner

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run.mjs

Compare termination signals and resolve the Node checkout path in the test/parallel runner

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verdict.mjs

Compare termination signals and resolve the Node checkout path in the test/parallel runner

2026-10-24 16:00:06 -05:00

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 (the same exit code, or the same terminating signal), fail (a different exit code or signal), 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.