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add mp_rand test

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This commit is contained in:
Steffen Jaeckel 2019-05-08 21:08:16 +02:00
parent eedf1624f0
commit 1a12486d4b
1 changed files with 40 additions and 0 deletions
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40
demo/test.c
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@ -68,6 +68,45 @@ LBL_ERR:
return EXIT_FAILURE;
}
static int very_random_source(void *out, size_t size)
{
memset(out, 0xff, size);
return MP_OKAY;
}
static int test_mp_rand(void)
{
mp_int a, b;
int err, n;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
mp_rand_source(very_random_source);
for (n = 1; n < 1024; ++n) {
if ((err = mp_rand(&a, n)) != MP_OKAY) {
printf("Failed mp_rand() %s.\n", mp_error_to_string(err));
break;
}
if ((err = mp_incr(&a)) != MP_OKAY) {
printf("Failed mp_incr() %s.\n", mp_error_to_string(err));
break;
}
if ((err = mp_div_2d(&a, n * MP_DIGIT_BIT, &b, NULL)) != MP_OKAY) {
printf("Failed mp_div_2d() %s.\n", mp_error_to_string(err));
break;
}
if (mp_cmp_d(&b, 1) != MP_EQ) {
ndraw(&a, "mp_rand() a");
ndraw(&b, "mp_rand() b");
err = MP_ERR;
break;
}
}
mp_rand_source(NULL);
mp_clear_multi(&a, &b, NULL);
return err == MP_OKAY ? EXIT_SUCCESS : EXIT_FAILURE;
}
static int test_mp_jacobi(void)
{
struct mp_jacobi_st {
@ -1828,6 +1867,7 @@ int unit_tests(int argc, char **argv)
T(mp_montgomery_reduce),
T(mp_prime_is_prime),
T(mp_prime_random_ex),
T(mp_rand),
T(mp_read_radix),
T(mp_reduce_2k),
T(mp_reduce_2k_l),