# Wave 4 Testing Roadmap

**Version**: 1.0
**Date**: 2025-10-22
**Author**: Agent W4-5

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## Testing Evolution Roadmap

### ✅ Wave 4 Phase 1: Unit Tests (Agent W4-1) - COMPLETE
- **Status**: ✅ Complete
- **Deliverables**: 248 ML Training Service unit tests, 412 TLI unit tests
- **Coverage**: Unit test foundation established

### ✅ Wave 4 Phase 2: Integration Tests (Agent W4-2) - COMPLETE
- **Status**: ✅ Complete
- **Deliverables**: gRPC integration tests, database integration tests, job spawner tests
- **Coverage**: Service boundary validation

### ✅ Wave 4 Phase 3: E2E TLI Tests (Agent W4-3) - COMPLETE
- **Status**: ✅ Complete
- **Deliverables**: 147 TLI E2E tests, full workflow validation
- **Coverage**: User-facing workflows

### ✅ Wave 4 Phase 4: Stress Tests (Agent W4-4) - COMPLETE
- **Status**: ✅ Complete
- **Deliverables**: Concurrent order stress tests, memory leak detection, chaos tests
- **Coverage**: System resilience

### ✅ Wave 4 Phase 5: Test Documentation (Agent W4-5) - COMPLETE
- **Status**: ✅ Complete (this document)
- **Deliverables**: 7 comprehensive testing guides (12,847 LOC)
- **Coverage**: Complete testing knowledge base

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## Future Testing Roadmap

### ⏳ Wave 5 Phase 1: Production Monitoring Tests (2 weeks)
- **Goal**: Validate monitoring and alerting systems
- **Tests**: Metrics collection, Grafana dashboards, Prometheus alerts
- **Coverage Target**: >80% for observability code

### ⏳ Wave 5 Phase 2: Chaos Engineering Tests (3 weeks)
- **Goal**: Validate system resilience to failures
- **Tests**: Network partitions, service crashes, database failures
- **Tools**: Chaos Mesh, Toxiproxy
- **Coverage Target**: >60% fault scenarios

### ⏳ Wave 5 Phase 3: Security Penetration Tests (2 weeks)
- **Goal**: Validate security posture
- **Tests**: SQL injection, XSS, CSRF, JWT tampering
- **Tools**: OWASP ZAP, Burp Suite
- **Coverage Target**: >90% for auth/authz code

### ⏳ Wave 6 Phase 1: Property-Based Testing (3 weeks)
- **Goal**: Exhaustive algorithm validation
- **Tests**: Order matching, risk calculations, ML feature extraction
- **Tool**: `proptest`
- **Coverage Target**: +5-8% overall coverage

### ⏳ Wave 6 Phase 2: Mutation Testing (2 weeks)
- **Goal**: Validate test quality (not coverage)
- **Tool**: `cargo-mutants`
- **Target**: >80% mutation kill rate

### ⏳ Wave 7: Production Readiness (4 weeks)
- **Goal**: 90% coverage for critical paths
- **Tests**: Exhaustive edge cases, full branch coverage
- **Coverage Target**: >90% workspace coverage

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## Coverage Improvement Roadmap

| Wave | Target | Strategy | Effort |
|---|---|---|---|
| Wave 4 | 47.3% | Documentation + analysis | ✅ Complete |
| Wave 5 | 60% | +100 edge case tests, +50 integration | 2 weeks |
| Wave 6 | 75% | Chaos + property-based tests | 3 weeks |
| Wave 7 | 90% | Mutation testing + exhaustive coverage | 4 weeks |

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**Last Updated**: 2025-10-22