Worked on expanding automated test coverage for the COSC381-2024Fall/Todo-List-CLI repository, focusing on the TodoList feature’s delete_task functionality. Developed comprehensive unit tests in Python using Pytest, targeting scenarios such as deleting tasks from a populated list, handling deletions when the list is empty, and managing out-of-range indices. Adopted a test-driven development approach to ensure reliability and maintainability, integrating a dedicated test file and updating test titles for clarity and convention alignment. This work enhanced the project’s automated test suite, reducing regression risk and supporting future development, though no production bugs were addressed during the period covered.