Worked on improving the stability and reliability of the Tidb Importer Module by addressing a persistent flaky test in the pingcap/tidb repository. Focused on refining the test suite through careful adjustment of the encoder creation mock setup, which ensured deterministic test outcomes and reduced intermittent failures during continuous integration runs. Utilized Go programming, along with mocking and testing techniques, to isolate and resolve the issue without impacting overall test coverage or code quality. This targeted fix accelerated pull request validation and contributed to a more robust CI process, demonstrating a methodical approach to maintaining software reliability in a complex codebase.