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Add test for random-int-in-range

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This commit is contained in:
Nick Mathewson 2015-04-21 11:41:31 -04:00
parent 6bf31543dc
commit e48ad353a3
1 changed files with 25 additions and 0 deletions
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25
src/test/test_crypto.c
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@ -105,6 +105,30 @@ test_crypto_rng(void *arg)
;
}
static void
test_crypto_rng_range(void *arg)
{
int got_smallest = 0, got_largest = 0;
int i;
(void)arg;
for (i = 0; i < 1000; ++i) {
int x = crypto_rand_int_range(5,9);
tt_int_op(x, OP_GE, 5);
tt_int_op(x, OP_LT, 9);
if (x == 5)
got_smallest = 1;
if (x == 8)
got_largest = 1;
}
/* These fail with probability 1/10^603. */
tt_assert(got_smallest);
tt_assert(got_largest);
done:
;
}
/** Run unit tests for our AES functionality */
static void
test_crypto_aes(void *arg)
@ -1605,6 +1629,7 @@ test_crypto_siphash(void *arg)
struct testcase_t crypto_tests[] = {
CRYPTO_LEGACY(formats),
CRYPTO_LEGACY(rng),
{ "rng_range", test_crypto_rng_range, 0, NULL, NULL },
{ "aes_AES", test_crypto_aes, TT_FORK, &passthrough_setup, (void*)"aes" },
{ "aes_EVP", test_crypto_aes, TT_FORK, &passthrough_setup, (void*)"evp" },
CRYPTO_LEGACY(sha),