# issue-15-final-acceptance-verification: Verify all 12 PRD acceptance criteria pass

## Description
Execute all 12 machine-verifiable acceptance criteria from the PRD to confirm production readiness. This includes build validation, CLI interface verification, DSL compilation, ASCII preview, error handling, SVG content correctness, performance benchmarking, binary size check, unit test coverage, integration tests, unsafe code verification, and documentation validation.

## Architecture Reference
This issue spans all components. No new implementation required—only verification that prior issues deliver the complete system. Reference PRD Section "Acceptance Criteria (Machine-Verifiable)" (AC1-AC12) for exact verification commands.

## Interface Contracts
- Consumes: All deliverables from issues 01-14 (complete codebase)
- Exports: Verification report (pass/fail for each AC)
- Implements: Verification script or manual checklist

```bash
# Primary verification interface
./tests/verify_all_acs.sh  # exits 0 if all ACs pass
```

## Isolation Context
- Available: Complete codebase from all prior issues (01-14)
- NOT available: Nothing—this is the final gate
- Source of truth: PRD Section "Acceptance Criteria" for exact commands

## Files
- **Create**: `tests/verify_all_acs.sh` (optional automated verification script)
- **Create**: `.artifacts/verification_report.md` (execution log with pass/fail status per AC)

## Dependencies
- issue-01 (project structure for AC1)
- issue-11 (CLI interface for AC2)
- issue-08/09 (SVG/ASCII rendering for AC3/4/6)
- issue-04 (error handling for AC5)
- issue-07 (layout for AC7 performance)
- issue-05/12 (parser tests for AC9)
- issue-13 (integration tests for AC10)
- issue-14 (documentation for AC12)

## Provides
- Complete PRD validation confirmation
- Performance benchmarking data (AC7)
- Binary size measurement (AC8)
- Production readiness gate

## Acceptance Criteria
- [ ] AC1: Build, test, clippy, fmt all exit 0; project files exist
- [ ] AC2: CLI --help outputs contain compile/preview and required flags
- [ ] AC3: Simple DSL compiles to valid SVG (passes xmllint)
- [ ] AC4: Preview outputs ASCII with Unicode box-drawing (U+2500-U+257F)
- [ ] AC5: Invalid DSL produces syntax error with exit code 1
- [ ] AC6: SVG contains all node names and connection labels from DSL
- [ ] AC7: 100-node diagram compiles in <1 second (hyperfine benchmark)
- [ ] AC8: Release binary size <10MB
- [ ] AC9: Parser has ≥5 unit tests that pass (cargo test --lib parser)
- [ ] AC10: Integration test suite passes (cargo test --test integration)
- [ ] AC11: No unsafe code in src/ (grep verification)
- [ ] AC12: cargo doc builds without warnings

## Testing Strategy

### Test Files
- `tests/verify_all_acs.sh`: Shell script executing all 12 AC commands sequentially
- `.artifacts/verification_report.md`: Markdown report with AC results and timestamps

### Test Categories
- **Functional verification** (AC1-6, AC9-12): Execute commands from PRD verbatim
- **Performance benchmarking** (AC7): Use hyperfine with 100-node generated DSL
- **Static checks** (AC8, AC11): stat binary size, grep for unsafe code

### Special Requirements
- **AC7 setup**: Generate 100-node DSL file (`/tmp/large.dsl`) with 99 connections
- **AC8**: Use `stat -f%z` (macOS) or `stat -c%s` (Linux) for binary size
- **AC11**: grep -r 'unsafe' src/ --include='*.rs' must exit non-zero (no matches)

### Run Command
```bash
# Manual execution (copy commands from PRD AC1-AC12)
bash tests/verify_all_acs.sh

# Or run each AC manually:
# AC1: cargo build --release && cargo test --all && ...
# AC2: ./target/release/diagrams --help | grep -q 'compile' && ...
# ... (see PRD for full commands)
```

## Verification Commands
- Execute: `bash tests/verify_all_acs.sh` (if automated script exists)
- Review: `cat .artifacts/verification_report.md` (contains pass/fail per AC)
- Gate: All 12 ACs must pass for production release
