Worked on the hmcts/prl-cos-api repository to enhance the reliability and maintainability of confidentiality-related workflows, with a focus on Refuge Case generation. Leveraging Java and Mockito, the developer expanded test data and coverage for confidentiality scenarios, including FL401 mappings, and implemented comprehensive unit tests for the RefugeCaseGenerator logic. The work included targeted refactoring to align existing tests with updates to the ConfidentialDetailsMapper, addressing style and quality improvements throughout the codebase. These efforts reduced regression risk and improved end-to-end confidence in the confidentiality features, supporting safer deployments and enabling faster iteration within backend development and testing processes.