# TestKit Unblocking Analysis — ULTRA-DEEP DIVE

**Date:** 2025-12-23
**Status:** CRITICAL PATH BLOCKER - ACTIVE RESOLUTION
**Analyst:** Implementation Team
**Scope:** Complete dependency resolution, build validation, and downstream unblocking strategy

---

## Executive Summary

Sprint 5100.0007.0002 (TestKit Foundations) is **COMPLETE** in implementation (13/13 tasks) but **BLOCKED** at build validation due to:
1. **Namespace collisions** (old vs. new implementation files)
2. **API mismatches** (CanonicalJson API changed)
3. **Missing package references** (Npgsql, OpenTelemetry.Exporter.InMemory)

**Impact:** TestKit blocks ALL 15 module/infrastructure test sprints (Weeks 7-14), representing ~280 downstream tasks.

**Resolution ETA:** 2-4 hours (same-day fix achievable)

---

## Part 1: Root Cause Analysis

### 1.1 Namespace Collision (RESOLVED ✓)

**Problem:**
Two conflicting file structures from different implementation sessions:
- **OLD:** `Random/DeterministicRandom.cs`, `Time/DeterministicClock.cs`, `Json/CanonicalJsonAssert.cs`, etc.
- **NEW:** `Deterministic/DeterministicTime.cs`, `Deterministic/DeterministicRandom.cs`, `Assertions/CanonicalJsonAssert.cs`

**Symptoms:**
```
error CS0118: 'Random' is a namespace but is used like a type
error CS0509: cannot derive from sealed type 'LaneAttribute'
```

**Root Cause:**
`namespace StellaOps.TestKit.Random` conflicted with `System.Random`.

**Resolution Applied:**
1. Deleted old directories: `Random/`, `Time/`, `Json/`, `Telemetry/`, `Snapshots/`, `Determinism/`, `Traits/`
2. Updated `Deterministic/DeterministicRandom.cs` to use `System.Random` explicitly
3. Kept simpler `TestCategories.cs` constants instead of complex attribute inheritance

**Status:** ✓ RESOLVED

---

### 1.2 CanonicalJson API Mismatch (90% RESOLVED)

**Problem:**
Implementation assumed API: `CanonicalJson.SerializeToUtf8Bytes()`, `CanonicalJson.Serialize()`
Actual API: `CanonJson.Canonicalize()`, `CanonJson.Hash()`

**File:** `src/__Libraries/StellaOps.Canonical.Json/CanonJson.cs`
**Actual API Surface:**
```csharp
public static class CanonJson
{
    byte[] Canonicalize<T>(T obj)
    byte[] Canonicalize<T>(T obj, JsonSerializerOptions options)
    byte[] CanonicalizeParsedJson(ReadOnlySpan<byte> jsonBytes)
    string Sha256Hex(ReadOnlySpan<byte> bytes)
    string Sha256Prefixed(ReadOnlySpan<byte> bytes)
    string Hash<T>(T obj)
    string HashPrefixed<T>(T obj)
}
```

**Resolution Applied:**
Updated `Assertions/CanonicalJsonAssert.cs`:
```csharp
// OLD: CanonicalJson.SerializeToUtf8Bytes(value)
// NEW: Canonical.Json.CanonJson.Canonicalize(value)

// OLD: CanonicalJson.Serialize(value)
// NEW: Encoding.UTF8.GetString(CanonJson.Canonicalize(value))

// OLD: Custom SHA-256 computation
// NEW: CanonJson.Hash(value)
```

**Status:** ✓ RESOLVED (7/7 references updated)

---

### 1.3 Missing NuGet Dependencies (IN PROGRESS)

**Problem:**
Three files reference packages not listed in `.csproj`:

#### A. PostgresFixture.cs
**Missing:** `Npgsql` package
**Error:**
```
error CS0246: The type or namespace name 'Npgsql' could not be found
```

**Lines 59, 62, 89:**
```csharp
using Npgsql;
// ...
public async Task RunMigrationsAsync(NpgsqlConnection connection)
```

**Resolution Required:**
```xml
<PackageReference Include="Npgsql" Version="8.0.5" />
```

#### B. OtelCapture.cs (Old implementation - DELETED)
**Missing:** `OpenTelemetry.Exporter.InMemory`
**File:** `Telemetry/OTelCapture.cs` (OLD - should be deleted)

**Actual File:** `Observability/OtelCapture.cs` (NEW - uses Activity API directly, no package needed)

**Status:** Directory deletion in progress (old `Telemetry/` folder)

#### C. HttpFixtureServer.cs
**Missing:** `Microsoft.AspNetCore.Mvc.Testing`
**Already Added:** Line 18 of StellaOps.TestKit.csproj ✓

**Status:** ✓ RESOLVED

---

## Part 2: Dependency Graph & Blocking Analysis

### 2.1 Critical Path Visualization

```
TestKit (5100.0007.0002) ━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
  ↓ BLOCKS (13 tasks)          ↓                              ↓
Epic B: Determinism Gate     Epic C: Storage Harness    Module Tests (15 sprints)
(5100.0007.0003, 12 tasks)   (5100.0007.0004, 14 tasks)      ↓
  ↓                              ↓                        Scanner, Concelier, Policy,
  ↓                              ↓                        Excititor, Signer, Attestor,
  ↓________________________      ↓                        Authority, Scheduler, Notify,
                           ↓     ↓                        CLI, UI, EvidenceLocker,
                      ALL MODULE TESTS                     Graph, Router, AirGap
                         (280+ tasks)                      (Weeks 7-14)
```

**Blocked Work:**
- **Epic B (Determinism Gate):** 12 tasks, 3 engineers, Week 2-3
- **Epic C (Storage Harness):** 14 tasks, 2 engineers, Week 2-4
- **Module Tests:** 15 sprints × ~18 tasks = 270 tasks, Weeks 7-10
- **Total Downstream Impact:** ~296 tasks, 22-26 engineers

**Financial Impact (Preliminary):**
- 1 day delay = ~$45,000 (26 engineers × $175/hr × 10 hrs)
- TestKit build fix ETA: 2-4 hours → Same-day resolution achievable

---

### 2.2 Parallelization Opportunities

**Once TestKit Builds:**

#### Week 2 (Immediate Parallel Start):
- Epic B: Determinism Gate (3 engineers, Platform Guild)
- Epic C: Storage Harness (2 engineers, Infrastructure Guild)
- Epic D: Connector Fixtures (2 engineers, QA Guild)
- Total: 7 engineers working in parallel

#### Week 7-10 (Max Parallelization):
After Epics B-C complete, launch ALL 15 module test sprints in parallel:
- Scanner (25 tasks, 3 engineers)
- Concelier (22 tasks, 3 engineers)
- Excititor (21 tasks, 2 engineers)
- Policy, Authority, Signer, Attestor, Scheduler, Notify (14-18 tasks each, 1-2 engineers)
- CLI, UI (13 tasks each, 2 engineers)
- EvidenceLocker, Graph, Router, AirGap (14-17 tasks, 2 engineers each)

**Total Peak Capacity:** 26 engineers (Weeks 7-10)

---

## Part 3: Immediate Action Plan

### 3.1 Build Fix Sequence (Next 2 Hours)

#### TASK 1: Add Missing NuGet Packages (5 min)
**File:** `src/__Libraries/StellaOps.TestKit/StellaOps.TestKit.csproj`

**Add:**
```xml
<ItemGroup>
  <PackageReference Include="Npgsql" Version="8.0.5" />
</ItemGroup>
```

**Validation:**
```bash
dotnet restore src/__Libraries/StellaOps.TestKit/StellaOps.TestKit.csproj
```

---

#### TASK 2: Fix OtelCapture xUnit Warning (10 min)
**File:** `src/__Libraries/StellaOps.TestKit/Observability/OtelCapture.cs:115`

**Error:**
```
warning xUnit2002: Do not use Assert.NotNull() on value type 'KeyValuePair<string, string?>'
```

**Fix:**
```csharp
// OLD (line 115):
Assert.NotNull(tag);

// NEW:
// Remove Assert.NotNull for value types (KeyValuePair is struct)
```

---

#### TASK 3: Build Validation (5 min)
```bash
dotnet build src/__Libraries/StellaOps.TestKit/StellaOps.TestKit.csproj
```

**Expected Output:**
```
Build succeeded.
    0 Warning(s)
    0 Error(s)
```

---

#### TASK 4: Pilot Test Validation (15 min)
```bash
dotnet test src/Scanner/__Tests/StellaOps.Scanner.Core.Tests/ --filter "FullyQualifiedName~TestKitExamples"
```

**Expected:** 5 passing tests
**Tests:**
- `DeterministicTime_Example`
- `DeterministicRandom_Example`
- `CanonicalJsonAssert_Determinism_Example`
- `SnapshotAssert_Example`
- `CanonicalJsonAssert_PropertyCheck_Example`

**Failure Scenarios:**
- Snapshot missing → Run with `UPDATE_SNAPSHOTS=1`
- PostgresFixture error → Ensure Docker running
- Canonical hash mismatch → API still misaligned

---

#### TASK 5: Update Sprint Execution Log (10 min)
**File:** `docs/implplan/SPRINT_5100_0007_0002_testkit_foundations.md`

**Add:**
```markdown
| 2025-12-23 | **BUILD VALIDATED**: TestKit compiles successfully with 0 errors, 0 warnings. Pilot tests pass in Scanner.Core.Tests. | Implementation Team |
| 2025-12-23 | **UNBLOCKING EPIC B & C**: Determinism Gate and Storage Harness sprints can begin immediately. | Project Mgmt |
```

---

### 3.2 Epic B & C Kickoff (Week 2)

#### Epic B: Determinism Gate (Sprint 5100.0007.0003)
**Status:** Tasks 1-2 DONE, Tasks 3-12 TODO
**Dependencies:** ✓ TestKit complete (CanonicalJsonAssert, DeterministicTime available)
**Blockers:** None (can start immediately after TestKit build validates)

**Next Steps:**
1. Expand integration tests for SBOM determinism (SPDX 3.0.1, CycloneDX 1.6)
2. VEX determinism tests (OpenVEX, CSAF)
3. Policy verdict determinism tests
4. Evidence bundle determinism (DSSE, in-toto)

**Resources:** 3 engineers (Platform Guild), 2-week timeline

---

#### Epic C: Storage Harness (Sprint 5100.0007.0004)
**Status:** Planning phase (to be read next)
**Dependencies:** ✓ TestKit complete (PostgresFixture, DeterministicTime available)
**Blockers:** None (can run in parallel with Epic B)

**Next Steps:**
1. Read `docs/implplan/SPRINT_5100_0007_0004_storage_harness.md`
2. Assess tasks and dependencies
3. Kickoff parallel to Epic B

**Resources:** 2 engineers (Infrastructure Guild), 2-3 week timeline

---

## Part 4: Rollout Strategy for 15 Module Sprints

### 4.1 TestKit Adoption Checklist

**For each module test sprint:**

#### Step 1: Add TestKit Reference
```xml
<ProjectReference Include="../../../__Libraries/StellaOps.TestKit/StellaOps.TestKit.csproj" />
```

#### Step 2: Create Example Tests
File: `<Module>.Tests/TestKitExamples.cs`
```csharp
using StellaOps.TestKit;
using StellaOps.TestKit.Deterministic;
using StellaOps.TestKit.Assertions;

[Fact, Trait("Category", TestCategories.Unit)]
public void DeterministicTime_Example() { ... }

[Fact, Trait("Category", TestCategories.Snapshot)]
public void SnapshotAssert_Example() { ... }
```

#### Step 3: Validate Pilot Tests
```bash
dotnet test <Module>.Tests/ --filter "FullyQualifiedName~TestKitExamples"
```

#### Step 4: Migrate Existing Tests (Optional)
- Replace `DateTime.UtcNow` → `DeterministicTime.UtcNow`
- Replace `Guid.NewGuid()` → `DeterministicRandom.NextGuid()`
- Add `[Trait("Category", TestCategories.<Lane>)]` to all tests

---

### 4.2 Parallel Rollout Schedule

**Week 7-10:** Launch ALL 15 module sprints in parallel

| Module | Sprint ID | Tasks | Engineers | Lead Guild | Start Date | Dependencies |
|--------|-----------|-------|-----------|------------|------------|--------------|
| Scanner | 5100.0009.0001 | 25 | 3 | Scanner Guild | 2026-02-09 | TestKit, Epic B |
| Concelier | 5100.0009.0002 | 22 | 3 | Concelier Guild | 2026-02-09 | TestKit, Epic B |
| Excititor | 5100.0009.0003 | 21 | 2 | Excititor Guild | 2026-02-09 | TestKit, Epic B |
| Policy | 5100.0009.0004 | 15 | 2 | Policy Guild | 2026-02-09 | TestKit, Epic C |
| Authority | 5100.0009.0005 | 17 | 2 | Authority Guild | 2026-02-09 | TestKit, Epic C |
| Signer | 5100.0009.0006 | 17 | 2 | Signer Guild | 2026-02-09 | TestKit |
| Attestor | 5100.0009.0007 | 14 | 2 | Attestor Guild | 2026-02-09 | TestKit, Epic C |
| Scheduler | 5100.0009.0008 | 14 | 1 | Scheduler Guild | 2026-02-09 | TestKit, Epic C |
| Notify | 5100.0009.0009 | 18 | 2 | Notify Guild | 2026-02-09 | TestKit |
| CLI | 5100.0009.0010 | 13 | 2 | CLI Guild | 2026-02-09 | TestKit |
| UI | 5100.0009.0011 | 13 | 2 | UI Guild | 2026-02-09 | TestKit |
| EvidenceLocker | 5100.0010.0001 | 16 | 2 | Infrastructure Guild | 2026-02-09 | TestKit, Epic C |
| Graph/Timeline | 5100.0010.0002 | 15 | 2 | Infrastructure Guild | 2026-02-09 | TestKit, Epic C |
| Router/Messaging | 5100.0010.0003 | 14 | 2 | Infrastructure Guild | 2026-02-09 | TestKit, Epic C |
| AirGap | 5100.0010.0004 | 17 | 2 | AirGap Guild | 2026-02-09 | TestKit, Epic B |
| **TOTAL** | **15 sprints** | **270** | **26** | **11 guilds** | **4 weeks** | **Parallel** |

---

### 4.3 Coordination Mechanisms

#### Daily Standups (Weeks 7-10)
- **Audience:** All guild leads (15 representatives)
- **Duration:** 15 minutes
- **Topics:**
  - TestKit usage blockers
  - Cross-module test dependencies
  - CI lane failures
  - Snapshot baseline conflicts

#### Weekly Guild Sync (Weeks 7-10)
- **Audience:** Platform Guild + QA Guild + module representatives
- **Duration:** 30 minutes
- **Topics:**
  - TestKit enhancement requests
  - Shared fixture improvements (PostgresFixture, ValkeyFixture)
  - Determinism gate updates

#### TestKit Enhancement Process
- **Requests:** Module guilds submit enhancement requests via `docs/implplan/TESTKIT_ENHANCEMENTS.md`
- **Review:** Platform Guild reviews weekly
- **Scope:** Defer to TestKit v2 unless critical blocker

---

## Part 5: Risk Mitigation

### 5.1 High-Impact Risks

| Risk | Probability | Impact | Mitigation | Owner |
|------|-------------|--------|------------|-------|
| **TestKit build fails after fixes** | LOW (20%) | CRITICAL | Create rollback branch; validate each fix incrementally | Implementation Team |
| **Pilot tests fail in Scanner.Core.Tests** | MEDIUM (40%) | HIGH | Run tests locally before committing; update snapshots with `UPDATE_SNAPSHOTS=1` | QA Guild |
| **Npgsql version conflict** | LOW (15%) | MEDIUM | Pin to 8.0.5 (latest stable); check for conflicts with existing projects | Platform Guild |
| **Epic B/C delayed by resource contention** | MEDIUM (30%) | HIGH | Reserve 3 senior engineers for Epic B; 2 for Epic C; block other work | Project Mgmt |
| **Module sprints start before Epics B/C complete** | HIGH (60%) | MEDIUM | Allow module sprints to start with TestKit only; integrate determinism/storage later | QA Guild |
| **.NET 10 compatibility issues** | LOW (10%) | MEDIUM | Testcontainers 3.10.0 supports .NET 8-10; validate locally | Platform Guild |
| **Docker not available in CI** | MEDIUM (25%) | HIGH | Configure CI runners with Docker; add Docker health check to pipelines | CI Guild |
| **Snapshot baseline conflicts (multiple engineers)** | HIGH (70%) | LOW | Use `UPDATE_SNAPSHOTS=1` only on designated "snapshot update" branches; review diffs in PR | QA Guild |

---

### 5.2 Contingency Plans

#### Scenario A: TestKit Build Still Fails
**Trigger:** Build errors persist after Npgsql package added
**Response:**
1. Rollback to last known good state (pre-edit)
2. Create minimal TestKit v0.9 with ONLY working components:
   - DeterministicTime
   - DeterministicRandom
   - TestCategories
3. Defer CanonicalJsonAssert, PostgresFixture to v1.1
4. Unblock Epic B with minimal TestKit

**Impact:** Epic C delayed 1 week (PostgresFixture critical)
**Mitigation:** Platform Guild pairs with original Canonical.Json author

---

#### Scenario B: .NET 10 Package Incompatibilities
**Trigger:** Testcontainers or OpenTelemetry packages fail on .NET 10
**Response:**
1. Downgrade TestKit to `net8.0` target (instead of `net10.0`)
2. Validate on .NET 8 SDK
3. File issues with Testcontainers/OpenTelemetry teams
4. Upgrade to .NET 10 in TestKit v1.1 (after package updates)

**Impact:** Minimal (test projects can target .NET 8)

---

#### Scenario C: Epic B/C Miss Week 3 Deadline
**Trigger:** Determinism/Storage harnesses not ready by 2026-02-05
**Response:**
1. Launch module sprints WITHOUT Epic B/C integration
2. Module tests use TestKit primitives only
3. Retrofit determinism/storage tests in Week 11-12 (after module sprints)

**Impact:** Determinism gate delayed 2 weeks; module sprints unaffected

---

## Part 6: Success Metrics

### 6.1 Build Validation Success Criteria

✅ **PASS:** TestKit builds with 0 errors, 0 warnings
✅ **PASS:** Pilot tests in Scanner.Core.Tests pass (5/5)
✅ **PASS:** TestKit NuGet package can be referenced by other projects
✅ **PASS:** Documentation (testkit-usage-guide.md) matches actual API

---

### 6.2 Sprint Completion Metrics

**Epic B (Determinism Gate):**
- 12 tasks completed
- Determinism tests for SBOM, VEX, Policy, Evidence, AirGap, Ingestion
- CI gate active (fail on determinism drift)

**Epic C (Storage Harness):**
- 14 tasks completed
- PostgreSQL fixtures for all modules
- Storage integration tests passing

**Module Sprints (15):**
- 270 tasks completed (avg 18 per module)
- Test coverage: 87% L0 (unit), 67% S1 (storage), 87% W1 (WebService)
- All tests categorized with TestCategories traits
- CI lanes configured (Unit, Integration, Contract, Security, Performance, Live)

---

### 6.3 Program Success Criteria (14-Week Timeline)

**By Week 14 (2026-04-02):**
- ✅ TestKit v1 operational and adopted by all 15 modules
- ✅ Determinism gate active in CI (SBOM/VEX/Policy/Evidence/AirGap)
- ✅ Storage harness validates data persistence across all modules
- ✅ ~500 new tests written across modules
- ✅ Test execution time < 10 min (Unit lane), < 30 min (Integration lane)
- ✅ Zero flaky tests (determinism enforced)
- ✅ Documentation complete (usage guide, migration guide, troubleshooting)

---

## Part 7: Next Steps (Immediate — Today)

### 7.1 Implementation Team (Next 2 Hours)

1. **Add Npgsql package** to `StellaOps.TestKit.csproj`
2. **Fix xUnit warning** in `Observability/OtelCapture.cs:115`
3. **Rebuild TestKit** and validate 0 errors
4. **Run pilot tests** in Scanner.Core.Tests
5. **Update sprint execution log** with build validation entry

---

### 7.2 Project Management (Next 4 Hours)

1. **Read Epic C sprint file** (`SPRINT_5100_0007_0004_storage_harness.md`)
2. **Schedule Epic B/C kickoff** (Week 2 start: 2026-01-26)
3. **Reserve resources**: 3 engineers (Epic B), 2 engineers (Epic C)
4. **Notify guilds**: Scanner, Concelier, Policy (prepare for TestKit adoption)

---

### 7.3 Communication (Today)

**Slack Announcement:**
```
:rocket: TestKit Foundations (Sprint 5100.0007.0002) COMPLETE!

Status: Build validation in progress (ETA: 2 hours)
What's Next:
- Epic B (Determinism Gate) starts Week 2
- Epic C (Storage Harness) starts Week 2
- Module test sprints start Week 7

Action Needed:
- Platform Guild: Review Epic B tasks
- Infrastructure Guild: Review Epic C tasks
- Module guilds: Prepare for TestKit adoption (reference testkit-usage-guide.md)

Questions? #testing-strategy-2026
```

---

## Part 8: Long-Term Vision

### 8.1 TestKit v2 Roadmap (Q2 2026)

**Candidate Features:**
- **Performance benchmarking**: BenchmarkDotNet integration
- **Property-based testing**: Enhanced FsCheck generators for domain models
- **Advanced fixtures**: ValkeyFixture improvements, S3 mock fixture
- **Distributed tracing**: Multi-service OtelCapture for integration tests
- **Snapshot diffing**: Visual diff tool for snapshot mismatches
- **Test data builders**: Fluent builders for SBOM, VEX, Policy objects

**Prioritization Criteria:**
- Guild votes (module teams request features)
- Complexity reduction (eliminate test boilerplate)
- Determinism enforcement (prevent flaky tests)

---

### 8.2 Testing Culture Transformation

**Current State:**
- Ad-hoc test infrastructure per module
- Flaky tests tolerated
- Manual snapshot management
- No determinism enforcement

**Target State (Post-Program):**
- Shared TestKit across all modules
- Zero flaky tests (determinism gate enforces)
- Automated snapshot updates (UPDATE_SNAPSHOTS=1 in CI)
- Determinism verification for all artifacts (SBOM, VEX, Policy, Evidence)

**Cultural Shifts:**
- **Test-first mindset**: Write tests before implementation
- **Snapshot discipline**: Review snapshot diffs in PRs
- **Determinism first**: Reject non-reproducible outputs
- **CI gate enforcement**: Tests must pass before merge

---

## Appendices

### Appendix A: File Inventory (TestKit v1)

```
src/__Libraries/StellaOps.TestKit/
├── StellaOps.TestKit.csproj
├── README.md
├── TestCategories.cs
├── Deterministic/
│   ├── DeterministicTime.cs
│   └── DeterministicRandom.cs
├── Assertions/
│   ├── CanonicalJsonAssert.cs
│   └── SnapshotAssert.cs
├── Fixtures/
│   ├── PostgresFixture.cs
│   ├── ValkeyFixture.cs
│   └── HttpFixtureServer.cs
└── Observability/
    └── OtelCapture.cs
```

**Total:** 9 implementation files, 1 README, 1 csproj
**LOC:** ~1,200 lines (excluding tests)

---

### Appendix B: Downstream Sprint IDs

| Sprint ID | Module | Status |
|-----------|--------|--------|
| 5100.0007.0002 | TestKit | DONE (build validation pending) |
| 5100.0007.0003 | Determinism Gate | READY (Tasks 1-2 DONE, 3-12 TODO) |
| 5100.0007.0004 | Storage Harness | READY (planning phase) |
| 5100.0009.0001 | Scanner Tests | BLOCKED (depends on TestKit build) |
| 5100.0009.0002 | Concelier Tests | BLOCKED (depends on TestKit build) |
| 5100.0009.0003 | Excititor Tests | BLOCKED (depends on TestKit build) |
| 5100.0009.0004 | Policy Tests | BLOCKED (depends on TestKit build) |
| 5100.0009.0005 | Authority Tests | BLOCKED (depends on TestKit build) |
| 5100.0009.0006 | Signer Tests | BLOCKED (depends on TestKit build) |
| 5100.0009.0007 | Attestor Tests | BLOCKED (depends on TestKit build) |
| 5100.0009.0008 | Scheduler Tests | BLOCKED (depends on TestKit build) |
| 5100.0009.0009 | Notify Tests | BLOCKED (depends on TestKit build) |
| 5100.0009.0010 | CLI Tests | BLOCKED (depends on TestKit build) |
| 5100.0009.0011 | UI Tests | BLOCKED (depends on TestKit build) |
| 5100.0010.0001 | EvidenceLocker Tests | BLOCKED (depends on TestKit build) |
| 5100.0010.0002 | Graph/Timeline Tests | BLOCKED (depends on TestKit build) |
| 5100.0010.0003 | Router/Messaging Tests | BLOCKED (depends on TestKit build) |
| 5100.0010.0004 | AirGap Tests | BLOCKED (depends on TestKit build) |

**Total Blocked Sprints:** 15
**Total Blocked Tasks:** ~270
**Total Blocked Engineers:** 22-26

---

### Appendix C: Quick Reference Commands

#### Build TestKit
```bash
dotnet build src/__Libraries/StellaOps.TestKit/StellaOps.TestKit.csproj
```

#### Run Pilot Tests
```bash
dotnet test src/Scanner/__Tests/StellaOps.Scanner.Core.Tests/ --filter "FullyQualifiedName~TestKitExamples"
```

#### Update Snapshots
```bash
UPDATE_SNAPSHOTS=1 dotnet test <TestProject>
```

#### Add TestKit Reference
```xml
<ProjectReference Include="../../../__Libraries/StellaOps.TestKit/StellaOps.TestKit.csproj" />
```

#### Check Docker Running
```bash
docker ps
```

---

## Conclusion

TestKit unblocking is achievable within **2-4 hours** (same-day). The critical path forward:

1. **Fix build** (add Npgsql, fix xUnit warning)
2. **Validate pilot tests** (Scanner.Core.Tests)
3. **Kickoff Epic B/C** (Week 2)
4. **Prepare module guilds** (TestKit adoption training)
5. **Launch 15 module sprints** (Week 7, parallel execution)

**Success depends on:**
- Immediate build validation (today)
- Resource reservation for Epic B/C (Week 2)
- Guild coordination for parallel rollout (Week 7)

**Risk is LOW**; mitigation strategies in place for all scenarios.

**ETA to Full Unblock:** 2026-02-05 (Epic B/C complete, module sprints ready to launch)

---

**Document Status:** ACTIVE
**Next Review:** After TestKit build validates (today)
**Owner:** Implementation Team + Project Mgmt