Developed and released a new testing infrastructure feature for the lakekeeper/lakekeeper repository, focusing on improving integration test support for external crates. The work centered on exposing internal testing helper functions through a dedicated 'test-utils' feature flag, allowing downstream developers to access and utilize these utilities with minimal boilerplate. This approach streamlined the process of writing robust integration tests and contributed to greater API surface stability. The implementation leveraged Rust, Cargo, and modular software design principles, emphasizing public API design and traceable commits. During this period, the primary focus was on feature delivery and developer productivity rather than bug fixes.