Github user gatorsmile commented on the issue:
https://github.com/apache/spark/pull/20511
@dongjoon-hyun That also sounds good to me. Always welcome to seeing more
contributions to help improve the test coverage. Doing our best to improve the
test coverage and code readability.
Normally, when the reviewers have questions, (sometimes the questions are
stupid), that might also mean the codes need more comments/refactoring. This
can help the future code developers and maintainers.
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