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Make scalar_add_bit test's overflow detection exact

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This commit is contained in:
Pieter Wuille
2014-12-03 18:30:17 +01:00
parent d220062ac2
commit 29ae1310ce
4 changed files with 13 additions and 8 deletions
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src/tests.c
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@@ -349,8 +349,7 @@ void scalar_test(void) {
secp256k1_scalar_add(&b, &b, &b);
}
secp256k1_scalar_t r1 = s1, r2 = s1;
secp256k1_scalar_add(&r1, &r1, &b);
if (!(secp256k1_scalar_get_bits(&s1, 255, 1) == 1 && secp256k1_scalar_get_bits(&r1, 255, 1) == 0)) {
if (!secp256k1_scalar_add(&r1, &r1, &b)) {
/* No overflow happened. */
secp256k1_scalar_add_bit(&r2, bit);
CHECK(secp256k1_scalar_eq(&r1, &r2));