peerplays-fc/tests/real128_test.cpp

#include <fc/real128.hpp>
#define BOOST_TEST_MODULE Real128Test
#include <boost/test/unit_test.hpp>
#include <fc/log/logger.hpp>

using fc::real128;
using std::string;

BOOST_AUTO_TEST_CASE(real128_test)
{
   BOOST_CHECK_EQUAL(string(real128(0)), string("0."));
   BOOST_CHECK_EQUAL(real128(8).to_uint64(), 8);
   BOOST_CHECK_EQUAL(real128(6789).to_uint64(), 6789);
   BOOST_CHECK_EQUAL(real128(10000).to_uint64(), 10000);
   BOOST_CHECK_EQUAL(string(real128(1)), string("1."));
   BOOST_CHECK_EQUAL(string(real128(5)), string("5."));
   BOOST_CHECK_EQUAL(string(real128(12345)), string("12345."));
   BOOST_CHECK_EQUAL(string(real128(0)), string(real128("0")));

   real128 ten(10);
   real128 two(2);
   real128 twenty(20);

   BOOST_CHECK_EQUAL( string(ten),  "10." );
   BOOST_CHECK_EQUAL( string(two),  "2." );
   BOOST_CHECK_EQUAL( string(ten+two),  "12." );
   BOOST_CHECK_EQUAL( string(ten-two),  "8." );
   BOOST_CHECK_EQUAL( string(ten*two),  "20." );
   BOOST_CHECK_EQUAL( string(ten/two),  "5." );

   BOOST_CHECK_EQUAL(real128("12345.6789").to_uint64(), 12345);
   BOOST_CHECK_EQUAL((real128("12345.6789")*10000).to_uint64(), 123456789);
   BOOST_CHECK_EQUAL(string(real128("12345.6789")), string("12345.6789"));

   wdump( (ten)(two)(twenty) );
   wdump( (real128(uint64_t(-1)))(uint64_t(-1)) );
   wdump((real128("12345.6789")) );
}