78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
|
#include <boost/test/unit_test.hpp>
|
||
|
|
|
||
|
|
#include <fc/variant.hpp>
|
||
|
|
#include <fc/crypto/bigint.hpp>
|
||
|
|
|
||
|
|
BOOST_AUTO_TEST_SUITE(fc_crypto)
|
||
|
|
|
||
|
|
BOOST_AUTO_TEST_CASE(bigint_test_1)
|
||
|
|
{
|
||
|
|
int64_t counter = 0, accu = 0, c_sq;
|
||
|
|
fc::bigint bi_accu(accu);
|
||
|
|
do {
|
||
|
|
c_sq = counter * counter;
|
||
|
|
fc::bigint add(c_sq);
|
||
|
|
bi_accu += add;
|
||
|
|
accu += c_sq;
|
||
|
|
BOOST_CHECK( fc::bigint(accu) == bi_accu );
|
||
|
|
|
||
|
|
bi_accu = bi_accu + add;
|
||
|
|
accu = accu + c_sq;
|
||
|
|
BOOST_CHECK_EQUAL( accu, bi_accu.to_int64() );
|
||
|
|
|
||
|
|
bi_accu = fc::bigint( bi_accu.dup() );
|
||
|
|
|
||
|
|
counter++;
|
||
|
|
} while (c_sq < 1000000);
|
||
|
|
|
||
|
|
fc::variant test;
|
||
|
|
fc::to_variant( bi_accu, test );
|
||
|
|
fc::bigint other;
|
||
|
|
fc::from_variant( test, other );
|
||
|
|
BOOST_CHECK( other == bi_accu );
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOST_AUTO_TEST_CASE(bigint_test_2)
|
||
|
|
{
|
||
|
|
const fc::bigint bi_1(1), bi_3(3), bi_17(17), bi_65537(65537);
|
||
|
|
fc::bigint bi_accu(bi_1);
|
||
|
|
do {
|
||
|
|
std::vector<char> bytes = bi_accu;
|
||
|
|
fc::bigint a_1( bytes );
|
||
|
|
a_1 = a_1 + bi_1;
|
||
|
|
BOOST_CHECK( bi_accu < a_1 );
|
||
|
|
|
||
|
|
bi_accu = a_1 * bi_accu;
|
||
|
|
BOOST_CHECK( bi_accu >= a_1 );
|
||
|
|
} while ( bi_accu.log2() <= 128 );
|
||
|
|
|
||
|
|
bi_accu = bi_accu;
|
||
|
|
|
||
|
|
BOOST_CHECK( bi_accu && !bi_accu.is_negative() && bi_accu != bi_1 );
|
||
|
|
|
||
|
|
BOOST_CHECK( bi_3.exp( bi_accu.log2() ) > bi_accu );
|
||
|
|
|
||
|
|
fc::bigint big(1);
|
||
|
|
big <<= 30; big += bi_17; big <<= 30; big++;
|
||
|
|
big <<= 30; big -= bi_17; big >>= 5; big--;
|
||
|
|
fc::bigint rest = bi_accu % big;
|
||
|
|
BOOST_CHECK( (bi_accu - rest) / big == bi_accu / big );
|
||
|
|
|
||
|
|
fc::bigint big2; big2 = big;
|
||
|
|
big2 *= bi_65537.exp(3);
|
||
|
|
big2 /= bi_65537.exp(3);
|
||
|
|
BOOST_CHECK( big2 == big );
|
||
|
|
big--;
|
||
|
|
|
||
|
|
BOOST_CHECK_EQUAL( (std::string) bi_1, "1" );
|
||
|
|
BOOST_CHECK_EQUAL( (std::string) bi_3, "3" );
|
||
|
|
BOOST_CHECK_EQUAL( (std::string) bi_17, "17" );
|
||
|
|
BOOST_CHECK_EQUAL( (std::string) bi_65537, "65537" );
|
||
|
|
BOOST_CHECK_EQUAL( (std::string) bi_65537.exp(3), "281487861809153" );
|
||
|
|
BOOST_CHECK_EQUAL( (std::string) bi_accu, "12864938683278671740537145998360961546653259485195806" );
|
||
|
|
BOOST_CHECK_EQUAL( (std::string) big, "38685626840157682946539517" );
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOST_AUTO_TEST_SUITE_END()
|
||
|
|
|