test-qht: test deletion of the last entry in a bucket

This improves coverage by one (!) LoC in qht.c, bringing the
coverage rate up from 90.00% to 90.28%.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Emilio G. Cota 2018-08-17 18:15:33 -04:00 committed by Richard Henderson
parent f44641bbf2
commit 321a33f534

View file

@ -172,9 +172,20 @@ static void qht_do_test(unsigned int mode, size_t init_entries)
qht_init(&ht, is_equal, 0, mode);
rm_nonexist(0, 4);
/*
* Test that we successfully delete the last element in a bucket.
* This is a hard-to-reach code path when resizing is on, but without
* resizing we can easily hit it if init_entries <= 1.
* Given that the number of elements per bucket can be 4 or 6 depending on
* the host's pointer size, test the removal of the 4th and 6th elements.
*/
insert(0, 4);
rm_nonexist(5, 6);
insert(4, 6);
rm(3, 4);
check_n(3);
insert(3, 6);
rm(5, 6);
check_n(5);
rm_nonexist(7, 8);
iter_rm_mod(1);