Wojciech Smigaj developed and validated a dedicated testing infrastructure for the ensemble_statistics filter in the JCSDA-internal/ufo-data repository. He created comprehensive test files and integrated them into the workflow, focusing on automated regression detection and improved reliability of the data processing pipeline. Using Python and YAML, Wojciech expanded test coverage to ensure that ensemble statistics outputs are consistently validated, laying the foundation for future continuous integration. His work addressed the need for robust regression checks and streamlined validation, demonstrating a methodical approach to testing that enhances confidence in the ensemble statistics filter’s performance and supports ongoing development efforts.