Worked on the nodejs/node repository to improve the reliability of SQLite database synchronization tests. Addressed a persistent issue where error message patterns in the test suite did not align with the behavior of system-installed SQLite, leading to false negatives during continuous integration. Refined the regular expressions used in test assertions to match system SQLite semantics, ensuring that tests accurately reflect real-world environments. This adjustment enhanced cross-environment test stability and contributed to safer, faster release cycles. The work demonstrated proficiency in JavaScript, database management, and testing, with a focus on robust CI pipelines and cross-platform validation for database-related features.