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-rw-r--r--libmisc/tests/test_rand.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/libmisc/tests/test_rand.c b/libmisc/tests/test_rand.c
index 295ea61..282c6a4 100644
--- a/libmisc/tests/test_rand.c
+++ b/libmisc/tests/test_rand.c
@@ -48,14 +48,14 @@ static void test_n(uint64_t cnt) {
bool seen[MAX_SEE_ALL] = {0};
for (int i = 0; i < ROUNDS; i++) {
uint64_t val = rand_uint63n(cnt);
- sum += ((double)val)/(cnt-1);
+ sum += val;
test_assert(val < cnt);
if (cnt < MAX_SEE_ALL)
seen[val] = true;
}
if (cnt > 1) {
- test_assert(sum/ROUNDS > 0.45);
- test_assert(sum/ROUNDS < 0.55);
+ test_assert(sum/ROUNDS > 0.45*(cnt-1));
+ test_assert(sum/ROUNDS < 0.55*(cnt-1));
}
if (cnt < MAX_SEE_ALL) {
for (uint64_t i = 0; i < cnt; i++)