April 2025: Focused on stabilizing the test suite and improving Docker-based reliability for the pingcap/tidb-engine-ext project. Delivered concrete changes to ensure memory profiling tests run under appropriate conditions and to make Docker runs more robust through a feature-flag mechanism. Key outcomes: - Stability of memory profiling tests: Fixed test_change_memory_config by conditionally skipping when MALLOC_CONF is not defined and clarified the test function name to improve clarity and maintainability. - Docker testing reliability: Introduced docker_test feature flag to selectively enable/disable tests inside Docker; updated scripts/test to automatically enable this flag within Docker, reducing flaky CI and improving Docker-based test reliability. Impact: - More reliable CI for memory profiling paths and Docker workflows, accelerating feedback and reducing false positives in test results. - Clearer, more maintainable test suite aligned with profiling capabilities and containerized environments. Technologies/skills demonstrated: - Go test hygiene, conditional test execution, feature flags, test naming clarity, CI scripting, and Docker-based test environments.