cshuo opened a new pull request, #19546: URL: https://github.com/apache/hudi/pull/19546
### Describe the issue this Pull Request addresses Closes #19545. The long tail of utility and model classes in `hudi-flink-datasource/hudi-flink` lacked focused unit-test coverage. Many of these classes were only touched indirectly by integration tests and therefore were not consistently represented in the unit-test coverage uploaded to Codecov. ### Summary and Changelog - Add 23 focused unit-test classes across Flink schema, sink, source, table-format, lookup, and shared utility packages. - Cover constructors and accessors, lifecycle delegation, enums and factories, index and rebalance helpers, row projections, and relevant error branches. - Add no production, configuration, or build changes. ### Impact Test-only change. No public API, configuration, runtime behavior, or performance impact. ### Risk Level Low. The change only adds deterministic unit tests and was validated through the Hudi Maven reactor: 59 tests passed with no failures, errors, or skips. The targeted JaCoCo report covered 419 lines across 59 production classes, with 72 of 77 branches covered. ### Documentation Update None. ### Contributor's checklist - [ ] Read through [contributor's guide](https://hudi.apache.org/contribute/how-to-contribute) - [x] Enough context is provided in the sections above - [x] Adequate tests were added if applicable -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
