Hi IMPALA Dev Team, In Contributing to Impala<https://cwiki.apache.org/confluence/display/IMPALA/Contributing+to+Impala?src=contextnavpagetreemode> ,said "Third, please include tests with your patch. If your patch does not include tests, it will not be accepted. If you are unsure how to write tests for a particular component, please ask on the impala-dev mailing list for guidance." So i want to know how to write tests for a particular component?
Best regards, Jiangwei
