- Implemented unit tests for HcommWriteNbi, HcommWriteNbiOnThread, HcommWriteWithNotifyNbi, and HcommWriteWithNotifyNbiOnThread to validate behavior with null and valid parameters. - Created tests for HcommChannel, HcommDfx, HcommEndpoint, HcommEngineCtx, HcommMem, and HcommResMgr to ensure proper error handling and functionality. - Added a base test class for Hcomm communication adaptations to streamline setup and teardown processes.