[Fix] Commits fail after users interrupt mutation tests by zoomote[bot] · Pull Request #1525 · Zoo-Code-Org/Zoo-Code

zoomote · 2026-09-04T14:53:59Z

Created by Roomote. Follow up by mentioning @roomote, in the web UI, or in Discord.

What changed

Relocate changed-code mutation sandboxes to the repository-level ignored .stryker-tmp directory using a run-root-relative path.
Exclude stale .stryker-tmp trees from the extension ESLint and TypeScript project scans, including watch mode.
Keep the Stryker temp location configurable for focused runs.

Why this change was made

Interrupted Stryker runs can bypass normal disposal and leave a package-local sandbox containing copied or partially mutated source. The extension's broad lint and TypeScript globs then scanned those copies, causing suppression-path lint failures and spurious type errors such as the Playwright mount diagnostics reported in #1514.

Closes #1514.

Impact

Local commits and pushes are no longer blocked by abandoned mutation sandboxes, and Stryker skips stale sandboxes when discovering dependency directories. Focused tests cover run-root path resolution and the default/configured Stryker setting; full lint, type-check, model-check, mutation-gate tests, and workspace tests pass.

github-actions · 2026-09-04T14:54:12Z

Review status

This PR was opened by an automated account. A human maintainer must verify the change intent, provenance, and validation before merging.

Current step: The required review sequence passed. Remaining merge requirements apply.

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codecov · 2026-09-04T14:59:18Z

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edelauna · 2026-09-04T15:02:54Z

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scripts/stryker-diff.mjs (1)

316-318: LGTM!

Also applies to: 385-385

scripts/stryker-diff.test.mjs (1)

7-7: LGTM!

Also applies to: 26-26, 215-219, 268-287

📝 Summary

Summary by CodeRabbit

Maintenance
- Improved mutation testing runs by using separate temporary directories for each package.
- Temporary mutation-testing files are excluded from linting, TypeScript compilation, and file watching to reduce tooling noise and interference.
- Mutation testing now supports configuring the temporary directory through the STRYKER_TEMP_DIR environment setting, with a default location when no custom value is provided.

Walkthrough

Stryker now receives a package-relative temporary directory through STRYKER_TEMP_DIR. ESLint and TypeScript exclude .stryker-tmp directories. Tests cover path resolution and environment-driven Stryker configuration.

Changes

Stryker temporary directory isolation

Layer / File(s)	Summary
Configure, wire, and validate temporary directories `stryker.config.mjs`, `scripts/stryker-diff.mjs`, `scripts/stryker-diff.test.mjs`, `src/eslint.config.mjs`, `src/tsconfig.json`	The Stryker configuration reads `STRYKER_TEMP_DIR`. The diff runner resolves a path relative to the package run root and passes it to the subprocess. Tests cover default and custom values. ESLint and TypeScript exclude `.stryker-tmp` directories.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to 60f11

Stryker workspaces are isolated from linting and TypeScript inputs, preventing stale mutation files from blocking development checks. The configuration and path-resolution behavior are covered, with no current merge-blocking risk identified.

Suggested reviewers: edelauna

🚥 Pre-merge checks | ✅ 5 | ❌ 2

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 4 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.
Regression Evidence	⚠️ Warning	The new `stryker.config.mjs` default and configured `tempDirName` behavior is covered, and `resolveStrykerTempDir` is covered for repository-root and nested run roots. The changed subprocess behavior …	Add focused execution coverage for `runStryker` through `runManifest` or an equivalent injectable runner. Use a temporary fake Stryker executable that records its environment, then assert `STRYKER_TEMP_DIR` is `.stryker-tmp` for the reposit…

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the primary fix: preventing interrupted mutation tests from blocking commits.
Description check	✅ Passed	The description explains the change, root cause, linked issue, impact, and test results. It does not use every template heading, but it provides the required implementation and verification context.
Linked Issues check	✅ Passed	The changes satisfy issue `#1514` by relocating Stryker sandboxes, excluding .stryker-tmp from ESLint and TypeScript scans, excluding it during watch mode, and preserving configurability. Cleanup on har…
Out of Scope Changes check	✅ Passed	All changed files support the linked issue. The helper, Stryker configuration, ESLint exclusions, TypeScript exclusions, and tests are directly related to preventing stale mutation sandboxes from brea…
Trust And Persistence Invariants	✅ Passed	No explicit trust, persistence, or lifecycle failure is introduced. The changed `runStryker` path supplies `STRYKER_TEMP_DIR` from `repoRoot` and the fixed package `runRoot` values, not from PR-contro…

Full details: Regression Evidence

Explanation

The new stryker.config.mjs default and configured tempDirName behavior is covered, and resolveStrykerTempDir is covered for repository-root and nested run roots. The changed subprocess behavior in runStryker is not covered. No test invokes a successful Stryker subprocess and observes STRYKER_TEMP_DIR; the existing runManifest test only covers the missing-binary error path. A missing or incorrect environment assignment could therefore pass the current tests.

Resolution

Add focused execution coverage for runStryker through runManifest or an equivalent injectable runner. Use a temporary fake Stryker executable that records its environment, then assert STRYKER_TEMP_DIR is .stryker-tmp for the repository run root and ../.stryker-tmp for a nested package run root. Keep the existing default/configured config tests.

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Commit unit tests in branch fix/stryker-sandbox-hooks-2o7nhyn77n069

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Actionable comments posted: 1

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Inline comments:
In `@scripts/stryker-diff.mjs`:
- Line 381: Update the STRYKER_TEMP_DIR value in the stryker-diff configuration
to be relative to runRoot, while still pointing to the repository-level
.stryker-tmp location; use the existing path utilities and packageEntry.id
structure so Stryker’s tempDirName basename exclusion continues to work for
webview runs.

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🔇 Additional comments (4)

stryker.config.mjs (2)

16-16: LGTM!

3-3: 🩺 Stability & Availability

No source-tree deletion occurs

Stryker 10.0.0 cleans the generated sandbox-* or backup-* child under tempDirName. It removes the parent only when the parent is empty. Values such as . or src therefore do not recursively delete files in those directories.

src/tsconfig.json (1)

24-24: LGTM!

Also applies to: 30-30

src/eslint.config.mjs (1)

61-61: 🎯 Functional Correctness

No change is needed. turbo lint runs src/package.json’s eslint . in the src package, so the repository-level .stryker-tmp directory is outside ESLint’s traversal.

zoomote · 2026-09-04T15:33:34Z

Fixed the valid Stryker temp-directory traversal finding and added the requested regression coverage in 60f11c7a3. The docstring warning was not applied because the touched helper is self-explanatory and this repository does not require JSDoc for internal functions. pnpm test:mutation-ci, pnpm lint, pnpm check-types, and required pnpm test all pass.

edelauna · 2026-09-04T15:41:20Z

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edelauna

Should help local development

…#1525) * fix(ci): isolate Stryker sandboxes from hooks * fix(ci): keep Stryker temp paths traversable --------- Co-authored-by: Roomote <roomote@roomote.dev>

fix(ci): isolate Stryker sandboxes from hooks

9e69f97

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github-actions Bot added the awaiting-author PR is waiting for the author to address requested changes label Sep 4, 2026

fix(ci): keep Stryker temp paths traversable

60f11c7

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edelauna approved these changes Sep 4, 2026

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edelauna marked this pull request as ready for review September 4, 2026 16:02

edelauna requested review from JamesRobert20, hannesrudolph, navedmerchant and taltas as code owners September 4, 2026 16:02

edelauna enabled auto-merge September 4, 2026 16:02

edelauna added this pull request to the merge queue Sep 4, 2026

zoomote Bot mentioned this pull request Sep 4, 2026

[BUG] Task throttling tests can fail during asynchronous disposal teardown #1526

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github-merge-queue Bot removed this pull request from the merge queue due to failed status checks Sep 4, 2026

edelauna added this pull request to the merge queue Sep 5, 2026

Merged via the queue into main with commit 4140c2c Sep 5, 2026
30 of 31 checks passed

edelauna deleted the fix/stryker-sandbox-hooks-2o7nhyn77n069 branch September 5, 2026 13:50

This was referenced Sep 5, 2026

DTE-v2 final ship plan - 39-unit 400-line redo of the DTE series (supersedes #28) easonLiangWorldedtech/Zoo-Code#35

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Tracking: abort-signal support for API providers (upstream series for #404) easonLiangWorldedtech/Zoo-Code#42

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easonLiangWorldedtech mentioned this pull request Sep 6, 2026

VPS2 durable per-view state - independent-fix series (supersedes #34 + the 21-item upstream draft series) easonLiangWorldedtech/Zoo-Code#41

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