Charon/blockchain
1
0
Fork 0
forked from lthn/blockchain
Code Pull requests Activity

crypto tests: crypto_calc_lsb_32

Browse source
This commit is contained in:
sowle 2021-06-07 14:43:19 +03:00
parent 57bc1278f4
commit 5fa0e15843
No known key found for this signature in database
GPG key ID: C07A24B2D89D49FC
1 changed files with 24 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
tests/functional_tests/crypto_tests.cpp
View file

@ -1551,6 +1551,30 @@ TEST(crypto, hex_tools)
return true;
}
TEST(crypto, calc_lsb_32)
{
auto& local_calc_lsb = [](uint32_t v) {
uint8_t r = 0;
while (v != 0 && (v & 1) == 0)
{
v >>= 1;
++r;
}
return r;
};
for (uint32_t x = 0; x < UINT32_MAX; ++x)
{
if (x % 10000000 == 0)
std::cout << x << ENDL;
ASSERT_EQ((int)local_calc_lsb(x), (int)calc_lsb_32(x));
}
ASSERT_EQ((int)local_calc_lsb(UINT32_MAX), (int)calc_lsb_32(UINT32_MAX));
return true;
}
//
// test's runner
//