[tests] fix a misprint

Tests should use ASSERT_NE(), not DCHECK_NE().

This is a follow-up to e54c80cf9ba129b943eed6af3266899753b1b4ac.

Change-Id: I78428cf60449820508f995c4a7c2a84582ce32c1
Reviewed-on: http://gerrit.cloudera.org:8080/21229
Tested-by: Alexey Serbin <alexey@apache.org>
Reviewed-by: Mahesh Reddy <mreddy@cloudera.com>
Reviewed-by: Abhishek Chennaka <achennaka@cloudera.com>
1 file changed