In the test t_merged_single_record() defined in t-reftable-merged.c, the 'input' and 'expected' ref records are checked for equality by comparing their update indices. It is very much possible for two different ref records to have the same update indices. Use reftable_ref_record_equal() instead for a stronger check. Mentored-by: Patrick Steinhardt <ps@pks.im> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>