Worked on the ersilia-os/ersilia repository to enhance the reliability of catalog data handling by developing comprehensive unit tests for the CatalogTable.as_list_of_dicts method. Focused on ensuring correct transformation of catalog data into dictionaries, the work addressed both standard and empty-data edge cases to reduce production risk and improve module maintainability. Applied test-driven development practices using Python and unit testing frameworks, linking changes to relevant issues and commits for traceability. This targeted feature improved the robustness of data transformation logic within the CatalogTable module, supporting more reliable downstream usage and facilitating easier future maintenance of the codebase.