# TDD Assessment: v0.7.0 Readiness

**Date:** 2026-03-23  
**Current Version:** v0.6.3  
**TDD Principle:** Tests First, Always

---

## Current Test Status

| Module | Tests | Status | Coverage |
|--------|-------|--------|----------|
| Safety Layer | 129 | ✅ PASSING | ~85% |
| AI Layer | 259 | ✅ PASSING | ~75% |
| Shadow Mode | 43 | ✅ PASSING | ~90% |
| Core Gateway | ~400 | ✅ PASSING | ~70% |
| Transports | ~200 | ✅ PASSING | ~65% |
| Integrations | ~300 | ✅ PASSING | ~60% |
| Connectors | ~200 | ✅ PASSING | ~55% |
| **TOTAL** | **~1,696** | **✅ PASSING** | **~63%** |

---

## v0.7.0 Requirements Analysis

### ✅ COMPLETED (Have Tests + Implementation)

| Component | Test File | Implementation | Notes |
|-----------|-----------|----------------|-------|
| `/safety/validator` | `test_validator*.py` (80+ tests) | `validator.py`, `validator_node.py` | <10ms validation, caching |
| `/safety/limits` | `test_limits.py` (20+ tests) | `limits.py` | Hardware-enforced bounds |
| `/safety/emergency_stop` | `test_emergency_stop.py` (20+ tests) | `emergency_stop.py` | <50ms response |
| `/safety/watchdog` | `test_watchdog.py` (20+ tests) | `watchdog.py` | 1kHz monitoring |
| `/ai/motion_planner` | `test_motion_planner.py` (40+ tests) | `motion_planner.py`, `motion_planner_node.py` | SMT-based planning |
| `/ai/execution_monitor` | `test_execution_monitor.py` (50+ tests) | `execution_monitor.py` | Progress tracking |
| `/ai/intent_parser` | `test_intent_parser*.py` (60+ tests) | `intent_parser.py` | Rule-based + LLM fallback |
| Shadow Mode | `test_*_tdd.py` (43 tests) | `shadow/` | Logging, comparison, dashboard |

### ❌ MISSING (No Tests Yet)

| Component | Required For | Priority | TDD Approach |
|-----------|--------------|----------|--------------|
| **Simulation Environment** | v0.6.2 Gate 2 | 🔴 CRITICAL | Tests for 10K scenario runner |
| **Human-in-the-Loop UI** | v0.6.2 Gate 2 | 🔴 CRITICAL | Tests for confirmation flows |
| **Shadow Mode Hooks** | v0.6.2 | 🟡 HIGH | Tests for intent parser integration |
| **Learning System** | v0.6.3 | 🟡 HIGH | Tests for constrained parameter optimization |
| **Fleet Coordination** | v0.6.3 | 🟡 HIGH | Tests for multi-robot task allocation |
| **Digital Twin** | v0.7.0 | 🟢 MEDIUM | Tests for sim-to-real validation |

---

## TDD Plan: Next Phase (v0.6.4)

### Phase 1: RED - Write Failing Tests

```python
# tests/unit/simulation/test_scenario_runner.py
class TestSimulationScenarioRunner:
    """TDD: Simulation must run 10K scenarios for v0.6.2 Gate 2"""
    
    def test_scenario_runner_exists(self):
        """RED: ScenarioRunner class should exist"""
        from agent_ros_bridge.simulation import ScenarioRunner
        assert ScenarioRunner is not None
    
    def test_can_load_scenario(self):
        """RED: Should load scenario from YAML"""
        runner = ScenarioRunner()
        scenario = runner.load_scenario("navigation_basic.yaml")
        assert scenario.name == "navigation_basic"
    
    def test_can_run_single_scenario(self):
        """RED: Should run scenario and return results"""
        runner = ScenarioRunner()
        result = runner.run_scenario("navigation_basic.yaml")
        assert result.success is not None
        assert result.duration_ms > 0
    
    def test_can_run_10000_scenarios(self):
        """RED: Should run 10K scenarios in parallel"""
        runner = ScenarioRunner()
        results = runner.run_batch(
            scenarios=["nav_*.yaml"],
            parallel=True,
            max_workers=16
        )
        assert len(results) >= 10000
        assert all(r.completed for r in results)
```

### Phase 2: GREEN - Minimal Implementation

```python
# agent_ros_bridge/simulation/scenario_runner.py
class ScenarioRunner:
    def __init__(self):
        self.scenarios = []
    
    def load_scenario(self, path: str) -> Scenario:
        # Minimal implementation
        pass
    
    def run_scenario(self, path: str) -> ScenarioResult:
        # Minimal implementation
        pass
    
    def run_batch(self, **kwargs) -> List[ScenarioResult]:
        # Minimal implementation
        pass
```

### Phase 3: REFACTOR - Improve Design

After tests pass, refactor for:
- Performance (parallel execution)
- Observability (progress tracking)
- Robustness (error handling)

---

## Key Insight

**The TODO.md is outdated.** Many "planned" components already exist with tests:
- Safety layer: ✅ Done (129 tests)
- Motion planner: ✅ Done (40+ tests)
- Execution monitor: ✅ Done (50+ tests)

**What's actually missing for v0.7.0:**
1. **Simulation infrastructure** (10K scenarios)
2. **Shadow mode integration** (hooks into existing systems)
3. **Real-world validation** (1000+ hours operation)

The code is ahead of the documentation.
