user-system/docs/evidence/ops/2026-03-28/quality/COVERAGE_REMEDIATION_20260328-124756.md

2026-03-28 Q-004 Coverage Remediation Pass 19

Scope

• Continue strict Q-004 closure work after Pass 18.
• Fully close the remaining admin shell hotspot in:
  • frontend/admin/src/layouts/AdminLayout/AdminLayout.tsx
• Re-verify closure through targeted layout tests and full frontend validation.

Changes

Frontend

• Reworked layout coverage in:
  • frontend/admin/src/layouts/AdminLayout/AdminLayout.test.tsx
• Newly covered behavior includes:
  • loading state while the session restores
  • admin desktop navigation flow
  • breadcrumb navigation
  • desktop collapse state
  • mobile menu / drawer flow
  • dropdown profile / security / logout actions
  • admin vs non-admin menu selection
  • avatar, nickname, username, and default-user fallbacks
  • explicit children rendering over the router outlet

Backend

• No backend code changes were required in this pass.

Verified Commands

cd D:\project\frontend\admin
npm.cmd run test:run -- src/layouts/AdminLayout/AdminLayout.test.tsx
npm.cmd run lint
npm.cmd run build
npm.cmd run test:coverage

Results

Frontend coverage

• Overall:
  • statements 92.06%
  • branches 79.29%
  • functions 89.09%
  • lines 92.22%
• Target area:
  • src/layouts/AdminLayout/AdminLayout.tsx: statements 100%, branches 100%, functions 100%, lines 100%

Validation outcomes

• Full frontend coverage run now completes with:
  • 49 passing test files
  • 224 passing tests
• The required sequential frontend validation path passed:
  • test:run -- src/layouts/AdminLayout/AdminLayout.test.tsx
  • lint
  • build
  • test:coverage

Validation Notes

• The successful frontend coverage run still emits one post-summary jsdom AggregateError network-noise line.
  • It does not fail the command.
  • It remains a real validation-hygiene issue and cannot be hidden.

Real Conclusion

• src/layouts/AdminLayout/AdminLayout.tsx is no longer an open Q-004 gap.
• Q-004 still cannot be honestly declared closed.
• After this pass, the remaining higher-value frontend gaps narrow further to:
  • src/lib/storage/token-storage.ts
  • src/lib/errors/AppError.ts
  • src/pages/admin/ImportExportPage/ImportExportPage.tsx
  • src/pages/NotFoundPage/NotFoundPage.tsx
  • the post-summary jsdom AggregateError coverage-noise hygiene issue