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test(windows): cover final native branches

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Tianyi Cui
2026-08-09 03:50:06 +08:00
parent bfb456e0c6
commit e7e75e7972
5 changed files with 42 additions and 3 deletions
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.agents/notes/implemented/process/2026-08-08-native-windows-pull-request-ci.md
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@@ -44,6 +44,8 @@ The project-skill composition fixture had one separate eventual-consistency race
The next exact-head run passed all 10,933 instrumented tests but correctly failed the per-file threshold at 99.95%, exposing five branches that Linux happened to cover. Deterministic cross-platform fixtures now exercise backward PTY scrollback pagination, a settings document that names a directory, an invalid SQLite filename, and an atomic-writer lock beneath a regular-file parent. The credentials provider's remaining `stat` and mode-enforcement arm is intrinsically POSIX, so it carries the same narrow annotated peer ignore used by the durable JSONL and storage backends; its behavior test remains enforced on POSIX. The threshold and source-file inventory remain unchanged.
The follow-up exact-head run passed all 10,937 instrumented tests and narrowed the threshold result to 99.99%. Its two remaining lines showed that the first PTY fixture had reached the page-offset helper but only supplied two pages, and that Windows path canonicalization rejected the real invalid-path fixture before `readFile` reached the reload-policy branch. The PTY fixture now supplies three backward pages, while the watcher fixture injects one non-absence read failure after the real permission check; both retain the observable output or last-good-snapshot assertions they exist to prove.
POSIX mode bits, chmod-based unreadability, and chmod-based writer-lock refusal do not exist as equivalent Windows facilities. Those acceptance cases remain enforced on POSIX and are skipped on Windows; content, atomic replacement, symlink safety, rollback and recovery through platform-independent filesystem conflicts, and native Windows long-path behavior remain covered. Only intrinsically POSIX source arms carry narrow, explained denominator ignores; no source file or platform-independent branch is excluded from Windows coverage to accommodate these differences.
Wine-only infrastructure is absent from the supported workflow: there is no apt-cache producer, compatibility script, hoisted snapshot install, Windows Node download, or local `check:windows-wine` command. The [archived Wine experiment](../../archived/process/2026-07-27-wine-windows-gates-experiment.md) remains historical evidence for its measured latency and fidelity trade-offs, not a current execution path.