# Test Plan Quick Reference

**TraceRTM Testing Pyramid & Implementation Summary**

---

## 🎯 Testing Pyramid Overview

```
                           ▲
                          /|\
                         / | \
                        /  |  \     E2E Tests (10-15%)
                       /   |   \    53+ Playwright specs
                      /    |    \   Critical flows
                     /_____|_____\  + features
                    /            \
                   /              \   Integration Tests (15-25%)
                  /                \  210+ test files
                 /                  \  Service chains
                /  _______________   \ Database
               /  /               \   \ Concurrency
              /  / Integration     \   \
             /  /                   \   \
            /  /___________________   \   \
           /                            \   \
          /            Unit Tests         \   \ (60-75%)
         /           (380+ files)         \   \
        /         Services, models,        \   \
       /          utilities, hooks          \   \
      /           Components, stores         \   \
     /____________________________________ ____\
```

---

## 📊 Test Coverage Snapshot

| Layer | Files | Tests | Coverage | Status |
|-------|-------|-------|----------|--------|
| **Backend Unit** | 350 | ~5000 | 75% | ✅ Exists |
| **Backend Integration** | 150 | ~2500 | 70% | ⚠️ Expand +30 |
| **Backend Concurrency** | 30 | ~500 | - | ⚠️ Expand +5 |
| **Frontend Unit** | 60 | ~800 | 65% | ⚠️ Expand +10 |
| **Frontend Integration** | 30 | ~400 | 50% | ⚠️ Expand +20 |
| **Frontend E2E** | 18 specs | 189 tests | 40% | ⚠️ Expand +35 |
| **Performance** | 20 | 150 | - | ⚠️ Add +30 |
| **Security** | - | - | - | 🔴 Add +20 |
| **Accessibility** | - | - | - | 🔴 Add +15 |
| **Load Testing** | - | - | - | 🔴 Add +10 |
| **TOTAL** | **648+** | **9,539+** | **65%** | **→ 80%** |

---

## 🔧 What Needs to Be Added

### Backend (Python/FastAPI)

#### Tier 1: Unit Tests (+15 files)
```
✓ Model tests (5)
  - Item, Link, Project, Agent, Event
✓ Service tests (10)
  - Cycle detection, Impact analysis, Critical path
  - Bulk operations, Import/Export, Cache, Conflict resolution
```

#### Tier 2: Integration Tests (+30 files)
```
✓ API endpoint chains (12)
  - Items, Links, Projects, Analysis endpoints
  - Search, Import/Export, Auth, Webhooks
✓ Database layer (8)
  - Transactions, Cascades, Indexes, Session management
✓ Service chains (10)
  - Event sourcing, Agent coordination, Cache invalidation
```

#### Tier 3: Concurrency (+5 files)
```
✓ Race conditions, deadlock prevention
✓ Load balancing, concurrent API requests
✓ Chaos mode resilience
```

**Effort:** 4-6 weeks | **Owner:** Senior Backend Test Engineer

---

### Frontend (React/TypeScript)

#### Tier 1: Hook & Store Tests (+28 files)
```
✓ Data hooks (6)
  - useItems, useProjects, useLinks, useSearch, useGraph, useAuth
✓ UI hooks (5)
  - useMediaQuery, useLocalStorage, useDebounce, useClickOutside, useKeyPress
✓ Advanced hooks (3)
  - usePerformance, useNodeExpansion, useWebSocket
✓ Query hooks (3)
  - useItemsQuery, useProjectsQuery, useMutation
✓ Store tests (6)
  - itemsStore, projectStore, authStore, uiStore, syncStore, websocketStore
✓ Store integration (2)
  - Cross-store interactions
```

#### Tier 2: Component Tests (+10 files)
```
✓ Layout components (2)
  - Header, Sidebar
✓ Forms (3)
  - CreateItemForm, CreateProjectForm, CreateLinkForm
✓ Modals/Dialogs (2)
  - Dialog, ConfirmDialog
✓ Data display (3)
  - ItemsTable, ItemsTree, TraceabilityMatrix
```

#### Tier 3: View Integration Tests (+8 files)
```
✓ Major views (5)
  - Dashboard, Graph, ProjectsList, ItemsTable, ImportExport
✓ Advanced views (3)
  - TraceabilityMatrix, ImpactAnalysis, AdvancedSearch
```

#### Tier 4: API & E2E Enhancement
```
✓ API integration (5)
  - Client, endpoints, MSW, tRPC, React Query
✓ E2E critical flows (8)
  - Project setup, traceability, change impact, collaboration
✓ E2E feature coverage (12)
  - Graph ops, filtering, sync, views, mobile, keyboard
✓ Performance E2E (8)
  - Load, datasets, graph rendering, import speed
✓ Edge cases (5)
  - Network resilience, boundaries, concurrency, errors
```

**Effort:** 5-7 weeks | **Owner:** Senior Frontend Test Engineer

---

## ⏱️ 14-Week Implementation Timeline

### Week 1-2: Foundation 🔨
**Backend Unit Tests**
```bash
pytest tests/unit/ -v
# Target: 365 unit tests, 85% service coverage
# Effort: 2 weeks
# Deliverable: 15 new test files
```

**Frontend Unit Tests**
```bash
bun run test -- src/__tests__/
# Target: 10 new test files for components
# Effort: 2 weeks (parallel with backend)
# Deliverable: Component test suite
```

### Week 3-5: Integration 🔗
**Backend Integration Tests**
```bash
pytest tests/integration/ -v
# Target: 30 new test files
# Focus: API chains, database, services
# Effort: 3 weeks
```

**Frontend Hook & Store Tests**
```bash
bun run test -- src/__tests__/hooks/
bun run test -- src/__tests__/stores/
# Target: 28 new test files
# Focus: Hook interactions, store chains
# Effort: 3 weeks (parallel)
```

### Week 6: E2E Critical Flows 🎯
```bash
bun run test:e2e -- --tag @critical
# Target: 8 critical journey specs
# Focus: End-to-end user workflows
# Effort: 1 week
```

### Week 7-8: E2E Feature Coverage 🎪
```bash
bun run test:e2e
# Target: 12 feature-specific specs
# Focus: Graph ops, filtering, sync, mobile
# Effort: 2 weeks
```

### Week 9: Performance Baselines 📈
```bash
pytest tests/performance/ -v
k6 run tests/performance/load_tests/k6_basic_flow.js
# Target: 8 performance specs
# Effort: 1 week
```

### Week 10: Advanced Performance 🚀
```bash
# Target: 8+ advanced performance tests
# Focus: Stress, memory, query optimization
# Effort: 1 week
```

### Week 11: Security Tests 🔒
```bash
pytest tests/security/ -v
# Target: 20 security test files
# Focus: Auth, validation, XSS, CSRF, API security
# Effort: 1 week
```

### Week 12: Accessibility Tests ♿
```bash
bun run test -- --grep "a11y"
# Target: 15 accessibility test files
# Focus: WCAG 2.1 AA compliance
# Effort: 1 week
```

### Week 13: Cross-Browser & Edge Cases 🌐
```bash
bun run test:e2e -- --grep "@critical|@edge"
# Target: 8 additional E2E specs
# Focus: Mobile, browsers, edge cases
# Effort: 1 week
```

### Week 14: Documentation & Optimization 📚
```bash
# Document all test suites
# Fix flaky tests
# Optimize slow tests
# Update CI/CD pipeline
# Effort: 1 week
```

---

## 📋 Test Execution Commands

### Quick Start
```bash
# Backend
cd /path/to/trace
pytest tests/ -v --cov=src/tracertm

# Frontend
cd frontend/apps/web
bun run test
bun run test:e2e
```

### By Category
```bash
# Backend by type
pytest tests/unit/ -v          # Unit only
pytest tests/integration/ -v   # Integration only
pytest -m "asyncio" tests/     # Async tests
pytest -m "performance" tests/ # Performance

# Frontend by type
bun run test -- --grep "^(?!.*e2e)"  # Unit + integration
bun run test -- src/__tests__/hooks/ # Hooks only
bun run test -- src/__tests__/stores/ # Stores only
bun run test:e2e -- --tag @critical  # E2E critical
bun run test:e2e -- --headed         # E2E with browser
```

### Performance & Load
```bash
# Performance baselines
pytest tests/performance/ -v --benchmark-only

# Load testing
k6 run tests/performance/load_tests/k6_basic_flow.js

# Memory profiling
python -m memory_profiler tests/performance/test_memory_usage.py
```

### CI/CD
```bash
# Run in CI
pytest tests/unit/ -v --cov=src/tracertm
bun run test
bun run test:e2e

# With parallelization
pytest -n auto tests/
bun run test -- --threads 4
```

---

## 🎯 Success Metrics

### Coverage Targets
| Metric | Current | Target |
|--------|---------|--------|
| Backend Coverage | 75% | 85% |
| Frontend Coverage | 65% | 75% |
| Critical Path E2E | 40% | 100% |
| **Overall** | **65%** | **80%** |

### Performance Targets
| Metric | Target | Tool |
|--------|--------|------|
| Unit test suite | < 10 min | pytest-xdist |
| Integration tests | < 20 min | pytest-xdist |
| E2E suite | < 15 min/spec | Playwright |
| **Full suite** | **< 1 hour** | CI/CD |

### Quality Targets
| Metric | Target |
|--------|--------|
| Flaky test rate | < 0.5% |
| Test maintenance | < 2% dev time |
| Mutation kill rate | > 80% |
| Critical path coverage | 100% |

---

## 🚀 Resource Requirements

**Team:** 3.5 FTE over 14 weeks

| Role | Weeks | Focus |
|------|-------|-------|
| **Senior Backend Test Eng** | 1-6 | Unit + Integration tests |
| **Senior Frontend Test Eng** | 1-8 | Hook, Store, Component tests |
| **Backend Engineer** (part-time) | 3-6 | Support test writing |
| **Frontend Engineer** (part-time) | 3-8 | Support test writing |
| **Performance Specialist** | 9-13 | Load, stress, perf tests |
| **Security Specialist** | 11-12 | Security tests |

**Total Effort:** ~490 person-hours

---

## 📁 File Structure

```
tests/
├── unit/                    # Unit tests (350→365 files)
│   ├── models/             # Model tests (+5)
│   └── services/           # Service tests (+10)
├── integration/            # Integration tests (150→180 files)
│   ├── api/                # API endpoint tests (+12)
│   ├── database/           # Database tests (+8)
│   └── services/           # Service chain tests (+10)
├── concurrency/            # Concurrency tests (30→35 files)
│   ├── race_conditions/
│   ├── deadlock_prevention/
│   └── load_balancing/
├── performance/            # Performance tests (20→50 files)
│   ├── benchmarks/
│   ├── load_tests/
│   └── stress_tests/
├── security/               # Security tests (NEW: +20 files)
│   ├── auth/
│   ├── validation/
│   └── injection/
└── error_handling/         # Error handling tests (+5)

frontend/apps/web/
├── src/__tests__/          # Unit + integration (113→161 files)
│   ├── hooks/              # Hook tests (+20)
│   ├── stores/             # Store tests (+8)
│   ├── components/         # Component tests (+10)
│   ├── views/              # View tests (+8)
│   ├── api/                # API tests (+5)
│   └── a11y/               # Accessibility tests (+15)
└── e2e/                    # E2E tests (18→53 specs)
    ├── critical-flows/     # Critical journeys (+8)
    ├── features/           # Feature coverage (+12)
    ├── performance/        # Performance tests (+8)
    ├── security/           # Security tests (+6)
    ├── accessibility/      # A11y tests (+6)
    ├── cross-browser/      # Cross-browser tests (+3)
    └── edge-cases/         # Edge cases (+5)
```

---

## ✅ Phase Completion Checklist

### Phase 1: Unit Tests (Weeks 1-2)
- [ ] 365 total unit tests
- [ ] 85% coverage for services
- [ ] < 10 minute execution
- [ ] Zero flaky tests
- [ ] PR requires passing unit tests

### Phase 2: Integration Tests (Weeks 3-5)
- [ ] 180 total integration tests
- [ ] 100% API endpoint coverage
- [ ] Database concurrency verified
- [ ] < 20 minute execution
- [ ] Merge requires passing integration tests

### Phase 3: E2E Flows (Weeks 6-8)
- [ ] 38 E2E specs (8 critical + 12 features)
- [ ] All critical paths covered
- [ ] View switching tested
- [ ] Real-time sync verified
- [ ] < 2 minute per spec (average)

### Phase 4: Performance (Weeks 9-10)
- [ ] 50+ performance tests
- [ ] Load test baselines established
- [ ] Stress test scenarios documented
- [ ] Performance regressions detected
- [ ] Metrics dashboard created

### Phase 5: Security (Week 11)
- [ ] 20 security tests passing
- [ ] Auth/authz fully tested
- [ ] Input validation verified
- [ ] Injection prevention verified
- [ ] Security audit clean

### Phase 6: Accessibility (Week 12)
- [ ] 15 accessibility tests
- [ ] WCAG 2.1 AA compliance
- [ ] Keyboard navigation verified
- [ ] Screen reader compatible
- [ ] Contrast validated

### Phase 7: Cross-Browser (Week 13)
- [ ] Chromium, Firefox, WebKit tested
- [ ] Mobile browsers (iOS, Android)
- [ ] Edge cases documented
- [ ] Quirks handled

### Phase 8: Completion (Week 14)
- [ ] 80% code coverage achieved
- [ ] Full test suite < 1 hour
- [ ] All tests documented
- [ ] No flaky tests
- [ ] CI/CD fully automated
- [ ] Performance SLAs met

---

## 📞 Contact & Documentation

- **Backend Test Lead:** [TBD]
- **Frontend Test Lead:** [TBD]
- **Test Infrastructure:** CI/CD pipelines documented in `.github/workflows/`
- **Test Data:** Factory fixtures in `tests/factories/` and `src/__tests__/mocks/`

---

**Quick Start Guide:**
1. Pick a phase from the timeline
2. Review detailed test specs in `COMPREHENSIVE_TEST_PLAN.md`
3. Run commands from "Test Execution Commands" section
4. Update task status as you progress
5. Submit PR when phase milestone reached

---

*Last Updated: 2026-01-24 | Status: Ready for Implementation*

