Dean refactored the test formatting for the Cairo language server in the software-mansion/cairols repository, focusing on improving readability and consistency across macro expansions and struct definitions. By standardizing line breaks and comma placement, Dean enhanced the maintainability of the test suite and reduced future formatting-related churn. This work, implemented in Rust and leveraging skills in code formatting, Language Server Protocol, and testing, aligned the test suite with CI standards and laid the groundwork for smoother future updates. The changes addressed the need for reliable, easily extensible tests, supporting ongoing development and ensuring that future contributions remain consistent and manageable.