add tests

gen_tests updated
solution.md updated

docs/03_tests/15_configuration_manager_integration_spec.md

@@ -0,0 +1,82 @@
+# Integration Test: Configuration Manager
+
+## Summary
+Validate the Configuration Manager responsible for loading, validating, and providing system configuration parameters.
+
+## Component Under Test
+**Component**: Configuration Manager
+**Location**: `gps_denied_16_configuration_manager`
+**Dependencies**: File system, Environment variables
+
+## Detailed Description
+Tests that Configuration Manager can:
+1. Load configuration from files (YAML/JSON)
+2. Override with environment variables
+3. Validate configuration parameters
+4. Provide default values
+5. Support configuration hot-reload
+6. Handle invalid configurations gracefully
+7. Manage sensitive data (API keys)
+
+## Input Data
+
+### Test Case 1: Load Default Configuration
+- **File**: config/default.yaml
+- **Expected**: All default parameters loaded
+
+### Test Case 2: Environment Variable Override
+- **Env**: GOOGLE_MAPS_API_KEY=test_key_123
+- **Expected**: Overrides config file value
+
+### Test Case 3: Invalid Configuration
+- **File**: Invalid YAML syntax
+- **Expected**: Load fails with clear error
+
+### Test Case 4: Missing Required Parameter
+- **File**: Missing altitude parameter
+- **Expected**: Validation fails, uses default or errors
+
+### Test Case 5: Parameter Validation
+- **Config**: altitude_m = -100 (invalid)
+- **Expected**: Validation rejects negative altitude
+
+### Test Case 6: Configuration Hot-Reload
+- **Scenario**: Modify config file while system running
+- **Expected**: Changes detected and applied
+
+### Test Case 7: Sensitive Data Handling
+- **Config**: API keys, passwords
+- **Expected**: Not logged, encrypted at rest
+
+## Expected Output
+```json
+{
+  "config_loaded": true,
+  "config_source": "file|env|default",
+  "parameters": {
+    "altitude_m": 400,
+    "google_maps_zoom": 19,
+    "gpu_device_id": 0,
+    "processing_timeout_s": 300
+  },
+  "validation_errors": [],
+  "load_time_ms": <float>
+}
+```
+
+## Success Criteria
+- All test cases load or fail appropriately
+- Validation catches invalid parameters
+- Sensitive data protected
+- Load time < 500ms
+
+## Maximum Expected Time
+- Load configuration: < 500ms
+- Validate: < 100ms
+- Hot-reload: < 1 second
+- Total test suite: < 30 seconds
+
+## Pass/Fail Criteria
+**Passes If**: All configurations load/validate correctly, overrides work, sensitive data protected
+**Fails If**: Invalid configs not detected, sensitive data exposed, overrides don't work
+