Worked on the mongodb/node-mongodb-native repository to refactor and migrate the unit test suite, focusing on improving test reliability and maintainability. The effort involved moving tests from the assorted directory to more appropriate locations, updating import paths, and removing redundant ESLint disable comments. By reorganizing test file structures and dependencies, the work established a more scalable and maintainable testing framework. Utilizing JavaScript and TypeScript, along with refactoring and unit testing skills, this contribution reduced continuous integration noise and streamlined onboarding for future contributors, laying the groundwork for easier future migrations and more efficient development workflows within the repository.