test: address test failures by increasing maxBuffer limit

[Planeshifter]

Description

What is the purpose of this pull request?

This pull request:

• Fixes stdout maxBuffer length exceeded failures in lib/node_modules/@stdlib/namespace/test/test.cli.js, which fail every run_affected_tests / run_tests_coverage run that touches the namespace package.

Failing run: https://github.com/stdlib-js/stdlib/actions/runs/28686663068

Symptom:

Running test: lib/node_modules/@stdlib/namespace/test/test.cli.js
stdout maxBuffer length exceeded
	at:       'done (.../namespace/test/test.cli.js:238:6)'
make: *** [.../tools/make/lib/test/javascript.mk:318: test-javascript-files-min] Error 1

Root cause: Two tests in test.cli.js exec() the namespace CLI and capture its full stdout — one as CSV (--fields alias,path), one as newline-delimited JSON (all fields, including related arrays) — using child_process.exec with no explicit maxBuffer, so Node's 1 MiB default applies. The stdlib namespace has grown to 3212+ entries, and the full JSON dump now exceeds that default, so exec() passes an error to its callback instead of stdout, which fails the test via t.fail(error.message). This is deterministic and will fail on every run going forward, not intermittent.

Fix: Add an explicit maxBuffer option (5000*1024, ~4.9 MiB) to both exec() calls that dump the full namespace. This matches the pre-existing {'maxBuffer': N*1024} convention already used across lib/node_modules/@stdlib/datasets/*/test/test.cli.js (e.g. moby-dick, cmudict, sotu) for CLI tests with large stdout. The other four exec() calls in the same file (--help, -h, --version, -V) produce trivial stderr-only output and were left unchanged. No source or CLI behavior changes — test-only.

Related Issues

Does this pull request have any related issues?

None.

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request?

Validation: Three independent automated reviews (correctness, regression scope, style/conventions) all returned approve with no blocking findings.

• Correctness: confirmed both namespace-dumping exec() calls are patched, confirmed the other four are trivial and don't need it, and estimated ~5x headroom over current output size (namespace would need to nearly quintuple before recurring).
• Regression scope: confirmed the diff is test-only and minimal (12 insertions / 2 deletions, one file), confirmed raising maxBuffer does not mask a correctness bug (both tests still assert stdout content against a locally computed expected value), confirmed no source/CLI/CI files were touched.
• Style: confirmed variable declaration order, quoting, spacing, and the N*1024 numeric-literal style all match the established sibling convention in datasets/*/test.cli.js, and that the local opts shadowing of the outer tape skip options mirrors the same pattern already used in those files.

Reviewer notes: All three reviewers independently flagged the same non-blocking style nit: the new local var opts (holding {maxBuffer}) shadows the outer, module-scope var opts (holding tape's {skip} option) within each test callback. This is intentional, harmless (the outer opts is already resolved as tape's second argument before the callback body runs), and is the identical pattern already used in lib/node_modules/@stdlib/datasets/moby-dick/test/test.cli.js and .../cmudict/test/test.cli.js, so no change was made.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Research and understanding

Disclosure

This PR was prepared by an automated CI-failure investigation routine (Claude Code). The root cause was identified by reading the failing job logs and namespace source, the fix was implemented to match an existing repo-wide convention, and it was validated by three independent automated reviews (correctness, regression scope, style) before opening this PR.

---

@stdlib-js/reviewers

---

Generated by Claude Code

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
namespace	$\\color{red}40273/40376$ $\\color{green}+99.74\\%$	$\\color{green}113/113$ $\\color{green}+100.00\\%$	$\\color{red}2/11$ $\\color{green}+18.18\\%$	$\\color{red}40273/40376$ $\\color{green}+99.74\\%$

The above coverage report was generated for the changes in this PR.