Ethan Clay
75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
#include <boost/test/unit_test.hpp>
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#include <limits>
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#include <string>
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#include "bignum.h"
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#include "util.h"
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BOOST_AUTO_TEST_SUITE(bignum_tests)
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#if defined(__GNUC__)
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#define NOINLINE __attribute__((noinline))
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#elif defined(_MSC_VER)
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#define NOINLINE __declspec(noinline)
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#else
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#define NOINLINE
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#endif
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NOINLINE void mysetint64(CBigNum& num, int64_t n)
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{
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num.setint64(n);
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}
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BOOST_AUTO_TEST_CASE(bignum_setint64)
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{
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const int64_t values[] = {
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0,
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1,
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-1,
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5,
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-5,
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std::numeric_limits<int64_t>::min(),
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std::numeric_limits<int64_t>::max(),
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};
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for (int64_t value : values) {
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CBigNum num(value);
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BOOST_CHECK_EQUAL(num.ToString(), std::to_string(value));
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num.setulong(0);
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BOOST_CHECK_EQUAL(num.ToString(), "0");
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mysetint64(num, value);
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BOOST_CHECK_EQUAL(num.ToString(), std::to_string(value));
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}
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}
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BOOST_AUTO_TEST_CASE(bignum_uint64_roundtrip_boundaries)
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{
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const uint64_t values[] = {
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0,
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1,
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0x7f,
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0x80,
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uint64_t{1} << 32,
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uint64_t{1} << 63,
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std::numeric_limits<uint64_t>::max(),
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};
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for (uint64_t value : values) {
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CBigNum num(value);
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BOOST_CHECK_EQUAL(num.getuint64(), value);
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}
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CBigNum negative(-1);
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BOOST_CHECK_EQUAL(negative.getuint64(), uint64_t{1});
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}
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BOOST_AUTO_TEST_CASE(bignum_rejects_invalid_output_base)
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{
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CBigNum value(42);
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BOOST_CHECK_THROW(value.ToString(0), bignum_error);
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BOOST_CHECK_THROW(value.ToString(1), bignum_error);
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BOOST_CHECK_THROW(value.ToString(17), bignum_error);
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}
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BOOST_AUTO_TEST_SUITE_END()
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