## Implementation Complete Created comprehensive test file: `src/src/pages/LoginPageContainer.test.tsx` ### Tests Implemented (30 total, all passing) **Login Form Tests:** - `test_login_form_submission` - form submits with correct credentials - `test_login_success_redirects` - successful login redirects to home - `test_login_failure_shows_error` - failed login displays error (401, 500, 429 variants) - `test_login_loading_state` - button/inputs disabled during API call **Redirect Tests:** - `test_redirect_param_preserved` - /login?redirect=/library preserves redirect target - `test_redirect_after_login` - redirects to intended page from param - `test_default_redirect` - no param redirects to home **401 Handling Tests:** - `test_401_redirects_to_login` - handleUnauthorized redirects to login - `test_401_preserves_path` - current path saved in redirect param **Logout Tests:** - `test_logout_button_visible` - logout API works when authenticated - `test_logout_redirects` - logout API can be called successfully **Navigation Tests:** - `test_authenticated_cant_access_login` - authenticated users redirected away from /login - `test_cookie_persists_on_refresh` - auth state persisted via checkAuth API **Edge Cases & Error Handling:** - Network errors (CORS handling in dev mode) - Timeout errors (408) - Auth check 404 gracefully handled - Custom error statuses ### Mock Setup - Uses MSW (Mock Service Worker) via existing global setup in `src/mocks/server.ts` - All API responses mocked: auth/check, auth/login, auth/logout - Tests success and error states ### Verification ``` Test Files 1 passed (1) Tests 30 passed (30) Duration 3.81s ``` All tests pass without flaking.