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stats: Test we do correctly invalidate the sorted array

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Chris had a doubt, and I was lazy and didn't do a similar test for the
quartiles/median than for the mean (test_invalidate_mean()). Plug that
gap.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
This commit is contained in:
Damien Lespiau 2015-06-27 16:42:50 +01:00
parent fabde384a3
commit 817ea87b6e
1 changed files with 19 additions and 0 deletions
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19
lib/tests/igt_stats.c
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@ -120,6 +120,24 @@ static void test_quartiles(void)
igt_stats_fini(&stats); igt_stats_fini(&stats);
} }
static void test_invalidate_sorted(void)
{
igt_stats_t stats;
static const uint64_t s1_truncated[] =
{ 47, 49, 6, 7, 15, 36, 39, 40, 41, 42};
double median1, median2;
igt_stats_init(&stats, ARRAY_SIZE(s1_truncated) + 1);
igt_stats_push_array(&stats, s1_truncated, ARRAY_SIZE(s1_truncated));
median1 = igt_stats_get_median(&stats);
igt_stats_push(&stats, 43);
median2 = igt_stats_get_median(&stats);
igt_assert_eq_double(median2, 40);
igt_assert(median1 != median2);
}
static void test_mean(void) static void test_mean(void)
{ {
igt_stats_t stats; igt_stats_t stats;
@ -193,6 +211,7 @@ igt_simple_main
test_min_max(); test_min_max();
test_range(); test_range();
test_quartiles(); test_quartiles();
test_invalidate_sorted();
test_mean(); test_mean();
test_invalidate_mean(); test_invalidate_mean();
test_std_deviation(); test_std_deviation();