# Test Coverage Report

**Generated:** November 16, 2025
**Tool:** cargo-tarpaulin v0.34.1
**Overall Coverage:** 30.87% (360/1166 lines)

## Coverage Breakdown by Module

### Models (Excellent Coverage: 87.8%)

| Module | Coverage | Lines Covered | Total Lines | Status |
|--------|----------|--------------|-------------|---------|
| **workflow.rs** | 100.0% | 72/72 | 72 | ✅ Perfect |
| **task.rs** | 99.3% | 141/142 | 142 | ✅ Excellent |
| **epic.rs** | 97.0% | 32/33 | 33 | ✅ Excellent |
| **group.rs** | 30.8% | 8/26 | 26 | 🟡 Needs tests |

**Models Total:** 253/273 lines (92.7%)

### Storage (Good Coverage: 79.9%)

| Module | Coverage | Lines Covered | Total Lines | Status |
|--------|----------|--------------|-------------|---------|
| **storage/mod.rs** | 79.9% | 107/134 | 134 | ✅ Good |

**Storage Total:** 107/134 lines (79.9%)

### Commands (No Coverage: 0%)

| Module | Coverage | Lines Covered | Total Lines | Status |
|--------|----------|--------------|-------------|---------|
| **init.rs** | 0% | 0/12 | 12 | ❌ No tests |
| **use_tag.rs** | 0% | 0/12 | 12 | ❌ No tests |
| **ai/research.rs** | 0% | 0/19 | 19 | ❌ No tests |
| **add_to_group.rs** | 0% | 0/19 | 19 | ❌ No tests |
| **assign.rs** | 0% | 0/19 | 19 | ❌ No tests |
| **tags.rs** | 0% | 0/22 | 22 | ❌ No tests |
| **set_status.rs** | 0% | 0/23 | 23 | ❌ No tests |
| **list_groups.rs** | 0% | 0/23 | 23 | ❌ No tests |
| **claim.rs** | 0% | 0/30 | 30 | ❌ No tests |
| **release.rs** | 0% | 0/30 | 30 | ❌ No tests |
| **list.rs** | 0% | 0/35 | 35 | ❌ No tests |
| **create_group.rs** | 0% | 0/36 | 36 | ❌ No tests |
| **next.rs** | 0% | 0/36 | 36 | ❌ No tests |
| **show.rs** | 0% | 0/37 | 37 | ❌ No tests |
| **stats.rs** | 0% | 0/44 | 44 | ❌ No tests |
| **whois.rs** | 0% | 0/45 | 45 | ❌ No tests |
| **group_status.rs** | 0% | 0/54 | 54 | ❌ No tests |
| **ai/parse_prd.rs** | 0% | 0/55 | 55 | ❌ No tests |
| **ai/analyze_complexity.rs** | 0% | 0/66 | 66 | ❌ No tests |
| **ai/expand.rs** | 0% | 0/91 | 91 | ❌ No tests |

**Commands Total:** 0/728 lines (0%)

### LLM (No Coverage: 0%)

| Module | Coverage | Lines Covered | Total Lines | Status |
|--------|----------|--------------|-------------|---------|
| **llm/prompts.rs** | 0% | 0/12 | 12 | ❌ No tests |
| **llm/client.rs** | 0% | 0/39 | 39 | ❌ No tests |

**LLM Total:** 0/51 lines (0%)

## Summary

### By Category

| Category | Coverage | Lines | Tested Lines | Status |
|----------|----------|-------|--------------|---------|
| Models | 92.7% | 273 | 253 | ✅ Excellent |
| Storage | 79.9% | 134 | 107 | ✅ Good |
| Commands | 0% | 728 | 0 | ❌ Needs integration tests |
| LLM | 0% | 51 | 0 | ❌ Needs mocking |
| **Overall** | **30.9%** | **1166** | **360** | 🟡 **Good core coverage** |

### Test Count: 94 Tests

- Task Model: 36 tests
- Epic Model: 13 tests
- Workflow State: 18 tests
- Storage Layer: 27 tests
- Pass Rate: 100%

## Analysis

### Strengths ✅

1. **Workflow State:** 100% coverage - Perfect implementation
2. **Task Model:** 99.3% coverage - Comprehensive testing
3. **Epic Model:** 97% coverage - Excellent coverage
4. **Storage Layer:** 79.9% coverage - Good error handling tests

### Gaps Identified 🟡

1. **Commands:** 0% coverage (728 uncovered lines)
   - Need integration tests
   - CLI interface testing required
   - Mock LLM interactions needed

2. **LLM Module:** 0% coverage (51 uncovered lines)
   - Need mock Anthropic API
   - Test prompt generation
   - Test response parsing

3. **Epic Groups:** 30.8% coverage (18 uncovered lines)
   - Need group-specific tests
   - Group lifecycle tests
   - Group validation tests

## Next Steps to Improve Coverage

### High Priority (Target: 60% total coverage)

1. **Add Integration Tests for Commands** (~400 lines)
   - Create `scud-cli/tests/integration_test.rs`
   - Mock file system operations
   - Test CLI argument parsing
   - Test command execution flow
   - Estimated impact: +35% coverage

2. **Mock LLM Client Tests** (~50 lines)
   - Create mock Anthropic responses
   - Test prompt generation
   - Test response parsing
   - Estimated impact: +4% coverage

### Medium Priority (Target: 75% coverage)

3. **Epic Groups Tests** (~20 lines)
   - Group creation/deletion
   - Epic assignment to groups
   - Group validation
   - Estimated impact: +2% coverage

4. **Command Error Handling** (~100 lines)
   - Invalid input scenarios
   - Missing dependencies
   - File permission errors
   - Estimated impact: +9% coverage

### Low Priority (Target: 85%+)

5. **Property-Based Testing**
   - Use `proptest` crate
   - Generate random valid tasks/epics
   - Fuzz test validation logic

6. **End-to-End Tests**
   - Full workflow cycles
   - Real file system operations
   - Multi-user scenarios

## Coverage Goals

| Milestone | Target | Current | Gap | ETA |
|-----------|--------|---------|-----|-----|
| v0.0.3-beta | 60% | 30.9% | +29% | 1 week |
| v0.0.4-beta | 75% | 30.9% | +44% | 2 weeks |
| v1.0.0 | 85% | 30.9% | +54% | 3-4 weeks |

## How to Run Coverage

```bash
# Install tarpaulin
cargo install cargo-tarpaulin

# Generate coverage report
cargo tarpaulin --out Html --output-dir ../coverage

# View HTML report
open ../coverage/tarpaulin-report.html
```

## CI/CD Integration

Coverage reporting is configured in `.github/workflows/coverage.yml`:
- Runs on every push/PR
- Uploads to codecov.io
- Fails if coverage drops below threshold (currently disabled)

## Notes

- **30.9% overall coverage** is accurate for current state
- Core business logic (models + storage) has **excellent coverage (85%)**
- Commands are 0% covered because they need **integration tests**
- Coverage will significantly improve with command integration tests
- Current test suite is robust for the implemented test types

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**Report Generated:** November 16, 2025
**Next Update:** After integration tests implementation
