# Integration Tests Summary

## ✅ Status: All 19 Tests Passing

Successfully created focused integration tests for the Vibe Kanban project that test **store-to-store integration** without any UI coupling.

## Test Results

```
✓ src/__tests__/integration/store-synchronization.test.tsx (19 tests) 38ms

Test Files  1 passed (1)
Tests  19 passed (19)
Duration  38ms
```

## What Was Created

**Main Test File**: `src/__tests__/integration/store-synchronization.test.tsx`
- 19 integration tests focusing on store synchronization
- Tests document lifecycle, persistence, deletion, type management
- History and timeline integration per document
- Multi-document operations

**Test Infrastructure**:
- `src/test/integration-utils.tsx` - Helper functions and setup utilities
- `src/test/test-helpers.ts` - Store reset and default settings
- `src/__tests__/integration/README.md` - Documentation

**Package Scripts**:
```json
"test:unit": "vitest run src/stores"
"test:integration": "vitest run src/__tests__/integration"
```

## Testing Philosophy

These tests verify **business logic integration** (how stores work together) rather than UI interactions:

✅ **What we test**:
- Document creation across workspace, timeline, and history stores
- State synchronization between stores
- Document isolation and independence
- Type management and persistence
- Multi-document operations

❌ **What we don't test**:
- UI rendering or component behavior
- User interactions (clicks, typing, etc.)
- React Flow canvas operations
- Visual appearance

This approach ensures tests are:
- **Fast** (~38ms execution time)
- **Reliable** (no UI coupling, no flakiness)
- **Maintainable** (survive UI refactoring)
- **Focused** (test integration points, not implementation)

## Test Coverage

### Document Creation Integration (3 tests)
- Timeline data initialization
- Node/edge types persistence
- Required data structures

### Document Persistence (2 tests)
- Data structure completeness
- Document order tracking

### Document Isolation (2 tests)
- Independent document state
- Separate timeline data

### Document Deletion (2 tests)
- Workspace and storage cleanup
- Active document switching

### Type Management (2 tests)
- Custom node types
- Edge type updates

### Document Duplication (1 test)
- Full data copy including custom types

### History Integration (3 tests)
- Per-document history initialization
- Independent history stacks
- History cleanup on deletion

### Document Renaming (2 tests)
- Title and metadata updates

### Multi-Document Operations (2 tests)
- Creating many documents
- Sequential deletion

## Key Learning: Store State Pattern

**Critical Pattern** - Always get fresh state after mutations:

```typescript
// ✅ CORRECT
const docId = useWorkspaceStore.getState().createDocument('Test');
const doc = useWorkspaceStore.getState().documents.get(docId); // Fresh state

// ❌ WRONG
const store = useWorkspaceStore.getState();
const docId = store.createDocument('Test');
const doc = store.documents.get(docId); // Stale state!
```

Zustand updates state synchronously, but you need to call `getState()` again to see changes.

## Running the Tests

```bash
# Run integration tests
npm run test:integration

# Run all tests
npm test

# Run with UI
npm run test:ui
```

## Comparison with Existing Tests

**Existing Unit Tests**: 367 tests across 10 store files
**New Integration Tests**: 19 tests in 1 file

Integration tests complement unit tests by testing how stores work together, catching bugs that unit tests miss.

## Future Opportunities

Additional integration test areas:
- Graph-Timeline state synchronization
- Bibliography-Graph citation integration
- Search-Filter multi-store coordination
- Import/Export full workspace workflows

## Conclusion

This integration test suite provides solid coverage of store synchronization in Vibe Kanban. The tests are:
- ✅ All passing (19/19)
- ✅ Fast (~38ms)
- ✅ Focused on business logic
- ✅ Independent of UI
- ✅ Production ready

The tests verify that the business logic layer works correctly without coupling to UI implementation, making them valuable for catching regressions while remaining maintainable.

---
**Created**: 2025-01-10  
**Test File**: src/__tests__/integration/store-synchronization.test.tsx  
**Status**: ✅ All tests passing