### Summary of Changes
- Introduced new tests for `handleRequestError` to cover various error scenarios including connection timeouts and service errors.
- Added tests for `determineServiceStatus` to verify service availability states.
- Updated `formatServiceData` and `formatEventData` tests to ensure correct formatting and handling of invalid data.
### Expected Results
- Improved coverage and reliability of error handling utilities tests, ensuring accurate error responses and service status checks.
- Enhanced maintainability of test code by applying clean code principles and better organization.
