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tests: improve eina_test_list_shuffle 

reduce iteratons by a hundredfold, remove verifying of rand() seed,
check whether shuffle actually shuffles

fix T6833

Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
This commit is contained in:
Mike Blumenkrantz 2018-03-29 18:14:53 -04:00 committed by Stefan Schmidt
parent 8ca6102f62
commit 11d695cfcd
1 changed files with 8 additions and 33 deletions
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41
src/tests/eina/eina_test_list.c
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@ -389,61 +389,36 @@ EFL_START_TEST(eina_test_list_split)
}
EFL_END_TEST
static int uicmp(const void *d1, const void *d2)
{
const unsigned int *a = d1;
const unsigned int *b = d2;
if(*a == *b) return 0;
if(*a > *b) return 1;
return -1;
}
#define SHUFFLE_SZ 100
#define SHUFFLE_N 100000
#define SHUFFLE_N 5
EFL_START_TEST(eina_test_list_shuffle)
{
double d;
unsigned int *p;
unsigned int i, j;
unsigned int i;
unsigned int n[SHUFFLE_SZ];
unsigned int rand_count[SHUFFLE_SZ];
Eina_List *list = NULL;
Eina_List *item = NULL;
Eina_List *copy, *cl;
for(i = 0; i < SHUFFLE_SZ; i++)
{
n[i] = i;
rand_count[i] = 0;
list = eina_list_append(list, &n[i]);
}
copy = eina_list_clone(list);
for(i = 0; i < SHUFFLE_N; i++)
{
list = eina_list_shuffle(list, NULL);
p = eina_list_nth(list, SHUFFLE_SZ/2);
rand_count[*p]++;
j = 0;
list = eina_list_sort(list, 0, (Eina_Compare_Cb)&uicmp);
cl = eina_list_data_get(copy);
EINA_LIST_FOREACH(list, item, p)
{
if (*p != j++)
fail_if(*p != j++);
if (eina_list_data_get(cl) != p) break;
cl = eina_list_next(cl);
}
if (j != SHUFFLE_SZ)
fail_if(j != SHUFFLE_SZ);
ck_assert_ptr_nonnull(item);
}
d = SHUFFLE_SZ/(float)(SHUFFLE_N);
for(i = 0; i < SHUFFLE_SZ; i++)
{
fail_if(rand_count[i]*d > 1.20f);
fail_if(rand_count[i]*d < 0.80f);
}
}
EFL_END_TEST