During May 2025, Tsuhuang Huang enhanced the microsoft/mu_basecore repository by developing mock implementations for the SynchronizationLib and SmmSxDispatch2 protocols within MdePkg. Using C and C++, Tsuhuang focused on embedded systems development and unit testing, enabling isolated and robust unit tests for components dependent on these protocols. This work established a stronger foundation for testability, allowing safer refactoring and reducing long-term maintenance risk. By documenting the changes and ensuring compatibility with existing test suites, Tsuhuang improved code quality and reliability. The contribution addressed issue #1340 and prioritized building testing infrastructure over production bug fixes during this period.