Worked on enhancing the testing utilities within the facebook/folly repository by introducing configurability to the GTestHelpers test body for coroutine tests. This feature allowed developers to define test bodies more flexibly through new macros and parameters, eliminating the need to fork existing helper classes. The approach focused on improving test ergonomics and maintainability, particularly for asynchronous and coroutine-based code. Utilizing C++ and coroutine techniques, the work streamlined the process of authoring and maintaining tests, supporting more consistent testing patterns. The changes contributed to simplifying onboarding for contributors and reducing the surface area of modifications required for future test enhancements.