user-system/docs/evidence/ops/2026-03-28/quality/COVERAGE_REMEDIATION_20260328-075725.md

2026-03-28 Q-004 Coverage Remediation Pass 8

Scope

• Continue strict Q-004 closure work after Pass 7.
• Fully close the remaining AuthProvider frontend provider cluster before moving to the next task.
• Re-verify that closure through targeted tests plus full frontend validation.

Changes

Frontend

• Expanded provider behavior coverage in:
  • frontend/admin/src/app/providers/AuthProvider.test.tsx
• Newly covered behavior includes:
  • reusing an already-authenticated in-memory session when the access token is still valid
  • authenticated-but-missing-user fallback when no backend session cookie exists
  • refresh-session success with role lookup success
  • refresh-session success with role lookup failure returning an empty role set
  • refresh-session failure cleanup
  • onLoginSuccess token persistence, user persistence, role persistence, and CSRF bootstrap
  • refreshUser success and error-logging branches
  • logout success and failure cleanup branches, including navigation to /login

Backend

• No backend code changes were required in this pass.

Verified Commands

cd D:\project\frontend\admin
npm.cmd run test:run -- src/app/providers/AuthProvider.test.tsx
npm.cmd run lint
npm.cmd run build
npm.cmd run test:coverage

Results

Frontend coverage

• Overall:
  • statements 76.00%
  • branches 63.91%
  • functions 75.07%
  • lines 76.84%
• Target areas:
  • src/app/providers: statements 96.38%, branches 93.75%
  • src/app/providers/AuthProvider.tsx: statements 100%, branches 100%, functions 100%, lines 100%
  • src/pages/auth/LoginPage/LoginPage.tsx: statements 47.93%, branches 63.63%
  • src/pages/auth/RegisterPage/RegisterPage.tsx: statements 77.63%, branches 60.65%
  • src/pages/admin/ProfileSecurityPage/ProfileSecurityPage.tsx: statements 70.17%, branches 48.97%

Validation Notes

• Frontend full coverage now completes with 41 passing test files and 141 passing tests.
• 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 should continue to be tracked honestly.

Real Conclusion

• AuthProvider is no longer an open Q-004 gap.
• Q-004 still cannot be honestly declared closed.
• The remaining highest-value frontend gaps are now more concentrated in:
  • LoginPage
  • RegisterPage
  • deeper remaining ProfileSecurityPage branches
  • lib/http