- Created test_database_url_validation.py for static code analysis
- Created test_runtime_errors.py for runtime error verification
- Created TEST_RESULTS.md with comprehensive test documentation
- All 7 Python scripts verified to use safe 'CHANGE_ME' fallback
- Confirmed no hardcoded production credentials remain in code
- Scripts properly fail with clear authentication errors
- Test coverage: 7/7 scripts passed (100%)
Security validation complete for CWE-798 remediation.
