Batch 1 of the ad hoc timeout literal migration (epic #4445). Replaces
every bare numeric timeout/timeoutMs object-literal property in
tests/process-seam.test.cjs, tests/helpers-process-isolation.test.cjs,
tests/run-with-timeout.test.cjs, and tests/helpers.cjs with a named
constant, per eslint-rules/no-adhoc-timeout-literal.cjs. Removes the
4 files from the rule's allowlist.
Adds SEAM_DEFAULT_TIMEOUT_MS to tests/helpers/timeouts.cjs (shared
across 2 batch files, mirroring process-seam.cjs's own un-exported
default). File-local constants elsewhere for values not shared across
files or not a bench-derived class norm. No src/bin file touched, no
numeric value changed anywhere.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Nothing enforced CONTRIBUTING.md's own stated preference ("A non-literal value
is trusted — that is the shape you should be writing") for timeout values in
tests. local/no-unbounded-spawn requires SOME bound but allows a bare literal;
no-magic-sleep-in-tests and no-elapsed-assertion cover different anti-patterns
entirely. This is exactly how PR #4428's Windows CI incident happened: two
independently-guessed 15000ms literals (one in production's check-latest-
version.cjs, one in this suite's own worker test) collided exactly and raced
two SIGKILLs against each other.
New rule local/no-adhoc-timeout-literal (eslint-rules/no-adhoc-timeout-
literal.cjs) flags a resolvable numeric timeout/timeoutMs literal; an
Identifier or MemberExpression value is trusted. No marker-comment escape —
the fix is always to extract a named constant, which is trivial.
Ships with a full legacy allowlist (126 files, 352 violations, generated
by running the rule with an empty allowlist against tests/) so it can go
live at error severity without breaking CI, mirroring how no-unbounded-spawn
itself was rolled out. Migration is tracked separately in #4445 (this PR
does not close it — only #4446, introducing the gate itself).
Documents the policy and the compliant shapes in TESTING-STANDARDS.md and
TEST-EXAMPLES.md.
Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
