Worked on enhancing reliability and test coverage for the dell/csi-powermax repository, focusing on backend automation and robust error handling. Addressed issues in the DeleteStorageProtectionGroup operation by ensuring proper handling of not-found errors during deletion, which reduced the risk of silent failures. Expanded replication test scenarios to cover edge cases, including empty error strings and induced error paths, thereby improving the accuracy and determinism of continuous integration feedback. Utilized Go and Gherkin to rework unit tests and update test automation harnesses, resulting in more resilient storage protection group operations and streamlined testing workflows for ongoing backend development and maintenance.