Github user tejasapatil commented on the issue:
https://github.com/apache/spark/pull/15047
@gatorsmile : I have tests in `HiveHasherSuite` to compare the values
against expected one. Initially I had thought about generating random input and
calling the original Hive's hash function to compare the results but later
dropped that as it would have added dependency on hive. See
https://github.com/apache/spark/pull/15047#issuecomment-247516360
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