---
phase: 50
slug: code-quality-test-coverage
status: verified
nyquist_compliant: true
wave_0_complete: true
created: 2026-04-14
---

# Phase 50 — Validation Strategy

> Per-phase validation contract for feedback sampling during execution.

---

## Test Infrastructure

| Property | Value |
|----------|-------|
| **Framework** | cargo test (Rust built-in) + sqllogictest |
| **Config file** | Cargo.toml + justfile |
| **Quick run command** | `cargo test` |
| **Full suite command** | `just test-all` |
| **Estimated runtime** | ~45 seconds |

---

## Sampling Rate

- **After every task commit:** Run `cargo test`
- **After every plan wave:** Run `just test-all`
- **Before `/gsd-verify-work`:** Full suite must be green
- **Max feedback latency:** 45 seconds

---

## Per-Task Verification Map

| Task ID | Plan | Wave | Requirement | Threat Ref | Secure Behavior | Test Type | Automated Command | File Exists | Status |
|---------|------|------|-------------|------------|-----------------|-----------|-------------------|-------------|--------|
| 50-01-01 | 01 | 1 | QUAL-01 | — | N/A | unit | `cargo test expand::join_resolver` | ✅ | ✅ green |
| 50-01-02 | 01 | 1 | QUAL-01 | — | N/A | unit | `cargo test expand::fan_trap` | ✅ | ✅ green |
| 50-01-03 | 01 | 1 | QUAL-01 | — | N/A | unit | `cargo test expand::facts` | ✅ | ✅ green |
| 50-01-04 | 01 | 1 | QUAL-06 | — | N/A | unit | `cargo test expand::sql_gen::tests` | ✅ | ✅ green |
| 50-02-01 | 02 | 2 | QUAL-02 | — | N/A | unit | `cargo test --lib` | ✅ | ✅ green |
| 50-02-02 | 02 | 2 | QUAL-03 | — | N/A | unit | `cargo test --lib` | ✅ | ✅ green |
| 50-02-03 | 02 | 2 | QUAL-04 | — | N/A | unit | `cargo test expand::semi_additive` | ✅ | ✅ green |
| 50-02-04 | 02 | 2 | QUAL-05 | — | N/A | unit | `cargo test --lib` | ✅ | ✅ green |

*Status: ⬜ pending · ✅ green · ❌ red · ⚠️ flaky*

---

## Wave 0 Requirements

*Existing infrastructure covers all phase requirements.*

---

## Manual-Only Verifications

*All phase behaviors have automated verification.*

---

## Validation Audit 2026-04-14

| Metric | Count |
|--------|-------|
| Gaps found | 0 |
| Resolved | 0 |
| Escalated | 0 |

---

## Validation Sign-Off

- [x] All tasks have `<automated>` verify or Wave 0 dependencies
- [x] Sampling continuity: no 3 consecutive tasks without automated verify
- [x] Wave 0 covers all MISSING references
- [x] No watch-mode flags
- [x] Feedback latency < 45s
- [x] `nyquist_compliant: true` set in frontmatter

**Approval:** verified 2026-04-14
