chore: Fix the skill-target layout test that pointed at a removed directory

[hatayama]

Summary

• Fixes the one failing EditMode test in ToolSkillSynchronizerTests, which was failing for a reason unrelated to what it verifies.

User Impact

None — test-only. Nothing about skill detection or installation changes.

Changes

DetectTargets_WhenGroupedLayoutRequested_DetectsEmptyFlatManagedDirectories built its fixture under .cursor. That directory stopped being a skill target when the target list was trimmed to Claude Code, Codex CLI, Common and Antigravity, so detection skipped it and returned no targets at all. The test then failed on Assert.That(detectedTargets.Length, Is.EqualTo(1)) before reaching the layout assertions it exists for.

The fixture now uses .claude, the directory every other single-target test in this file uses, so the test exercises the grouped-versus-flat layout detection it was written to cover.

SkillInstallLayoutTests named the same removed directory in one fixture. It passed either way because that API takes the directory name directly, but it is the same staleness, so it now uses .codex like the case beside it. No .cursor reference is left in the tests.

Triage result: the failure was in the test, not in the product. SkillTargetDetector correctly ignores directories that are not skill targets.

Verification

• uloop run-tests (EditMode, ToolSkillSynchronizerTests|SkillInstallLayoutTests): 70/70 passed. Before this change ToolSkillSynchronizerTests was 51/52 with Expected: 1 But was: 0 at line 907.

[coderabbitai]

📝 Walkthrough

Walkthrough

The grouped-layout detection test now points its empty flat managed directory fixture at .claude instead of .cursor; all other setup and assertions remain unchanged.

Changes

Tool skill layout tests

Layer / File(s)	Summary
Update empty flat directory fixture Assets/Tests/Editor/ToolSkillSynchronizerTests.cs	The test’s targetRoot uses the .claude directory while preserving the existing setup and assertions.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• hatayama/unity-cli-loop#954: Adds or updates empty managed flat directory coverage under the .cursor root.
• hatayama/unity-cli-loop#980: Adjusts skill-layout preservation and managed-directory handling in related synchronization tests.
• hatayama/unity-cli-loop#1588: Refactors layout detection internals related to empty flat managed directories.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly describes the test fix and mentions the removed directory causing the issue.
Description check	✅ Passed	The description is directly related to the test-only change and matches the updated fixture and verification.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/tool-skill-synchronizer-stale-target-test

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