Worked on the mongodb/laravel-mongodb repository to address a critical bug in database connection management, focusing on the accurate extraction of database names from DSN strings when a custom CA file path is present. Utilized PHP and regular expressions to refine the DSN parsing logic, ensuring compatibility with existing connection workflows. Added a targeted regression test to maintain reliability and prevent future issues related to DSN parsing, while also preserving continuous integration coverage. This work improved the robustness of DSN-based connections for users relying on custom CA bundles, demonstrating careful attention to edge cases and a methodical approach to unit testing.