useDirectorySettings Tests:
- Test directory initialization with overrides and remote defaults
- Verify app config override with space trimming
- Load Claude/Codex directories from remote API
- Calculate resolvedDirs correctly
- Test directory browsing functionality
- Browse Claude/Codex config directories
- Browse app config directory with proper default paths
- Update settings callback when selection succeeds
- Test error handling scenarios
- User cancels directory selection (returns null)
- Directory picker throws error (shows toast)
- Verify settings not updated on failure
- Test directory reset operations
- Reset individual directories to computed defaults
- Reset app config directory
- Batch reset with provided server values
- Use vi.hoisted() for proper mock initialization
- Factory function for settings creation (reusability)
useSettingsMetadata Tests:
- Test portable mode flag loading
- Verify initial loading state
- Load portable flag from API
- Handle async state transitions
- Test error tolerance when API fails
- Silent failure on network errors
- Default to non-portable mode
- Continue without blocking UI
- Test restart flag management
- Set restart required flag
- Acknowledge restart to clear flag
- State updates wrapped in act()
All tests passing: 10/10 (7 useDirectorySettings + 3 useSettingsMetadata)
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)
Add extensive unit and component tests covering import/export, settings,
and provider list functionality, advancing to Sprint 2 of test development.
Hook Tests:
- useImportExport (11 tests):
* File selection success/failure flows
* Import process with success/failure/exception paths
* Export functionality with error handling
* User cancellation scenarios
* State management (clear selection, reset status)
* Fake timers for async callback testing
- useSettingsForm (5 tests):
* Settings normalization on initialization
* Language persistence from localStorage
* Field updates with language sync
* Reset functionality with initial language restoration
* Optimization to avoid redundant language changes
Component Tests:
- ProviderList (3 tests):
* Loading state with skeleton placeholders
* Empty state with create callback
* Render order from useDragSort with action callbacks
* Props pass-through (isCurrent, isEditMode, dragHandleProps)
* Mock ProviderCard to isolate component under test
Technical Highlights:
- Fake timers (vi.useFakeTimers) for async control
- i18n mock with changeLanguage spy
- Partial mock of @dnd-kit/sortable using vi.importActual
- ProviderCard render spy for props verification
- Comprehensive error handling coverage
Test Coverage:
✓ 19 new test cases (11 + 5 + 3)
✓ Total: 35 tests passing
✓ Execution time: 865ms
✓ TypeScript: 0 errors
Related: Import/export, settings management, provider list rendering
Sprint Progress: Sprint 1 complete, Sprint 2 in progress (component tests)
