SettingsDialog Integration Tests:
- Add test for directory browsing and reset functionality
- Verify app config directory browse/reset flow
- Verify Claude config directory manual change, browse, and reset
- Test multiple directory inputs with getAllByTitle pattern
- Add test for export failure error handling
- User cancels file selection (save_file_dialog returns null)
- Export operation fails (disk full scenario)
- Use server.use() to dynamically override MSW handlers
- Verify toast error messages match i18n keys
MSW Handler Extension:
- Add pick_directory handler to support directory selection API
- Consistent with select_config_directory mock strategy
useSettings Hook Unit Tests:
- Add comprehensive tests for settings save logic
- Test restart flag when app config directory changes
- Test no restart when directory unchanged
- Verify space trimming and empty string to undefined conversion
- Test Claude plugin sync failure tolerance
- Add test for settings reset functionality
- Verify form/language/directories reset with server data
- Use factory functions for mock creation (reusability)
- Complete dependency isolation with mock hooks
All tests passing: 9/9 (5 integration + 4 unit tests)