Worked on the ferrocene/ferrocene repository to enhance the reliability and maintainability of its Rust-based test suite. Focused on reorganizing two test files, the developer improved the structure and traceability of tests, making future updates more manageable. Regression test documentation was added to clarify the intent behind each test, supporting clearer understanding for future contributors. The technical approach emphasized explicit traceability, with changes tracked through a dedicated commit. Utilizing Rust and testing best practices, the work addressed maintainability concerns and documentation gaps, though no major bugs were fixed during this period. The contribution reflects a methodical approach to test infrastructure improvement.