Worked on strengthening the test coverage of the redpanda-data/redpanda repository by developing targeted reproduction tests for the Transform Module. Focused on a complex deadlock scenario in multi-output processors, the work involved documenting and reproducing a case where one output producer stalls while others continue, which previously led to undetected stuck states. Using C++ and leveraging software engineering and testing skills, the developer integrated these tests into the continuous integration pipeline, enabling earlier detection and faster diagnosis of related bugs. This contribution improved the reliability of failure propagation handling and provided a foundation for more robust debugging and remediation in future development.