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#include "aocommon/optionalnumber.h"
#include <cstdint>
#include <boost/test/unit_test.hpp>
namespace {
using aocommon::OptionalNumber;
template <typename T>
class Test {
static_assert(!OptionalNumber<T>());
static_assert(!OptionalNumber<T>().HasValue());
static_assert(!OptionalNumber<T>(std::nullopt));
static_assert(!OptionalNumber<T>{});
static_assert(OptionalNumber<T>(T(0)));
static_assert(OptionalNumber<T>(0).HasValue());
static_assert(OptionalNumber<T>(T(13)).Value() == T(13));
static constexpr OptionalNumber<T> GetAssigned() {
OptionalNumber<T> number;
return number = T(0.0);
}
static_assert(GetAssigned() == 0);
static_assert(*GetAssigned() == 0);
static constexpr OptionalNumber<T> GetReset() {
OptionalNumber<T> number = GetAssigned();
number.Reset();
return number;
}
static_assert(!GetReset());
static constexpr OptionalNumber<T> GetUnassigned() {
OptionalNumber<T> number(T(1));
number = {};
return number;
}
static constexpr OptionalNumber<T> GetSwappedLhs(OptionalNumber<T> a,
OptionalNumber<T> b) {
swap(a, b);
return a;
}
static constexpr OptionalNumber<T> GetSwappedRhs(OptionalNumber<T> a,
OptionalNumber<T> b) {
swap(a, b);
return b;
}
static_assert(!GetUnassigned());
static_assert(*OptionalNumber(OptionalNumber<T>(5)) == 5);
static_assert(OptionalNumber<T>().ValueOr(3) == 3);
static_assert(OptionalNumber<T>(2).ValueOr(3) == 2);
// Comparisons with optional numbers on both sides
static_assert(OptionalNumber<T>() == OptionalNumber<T>());
static_assert(OptionalNumber<T>(3) == OptionalNumber<T>(3));
static_assert(!(OptionalNumber<T>() == OptionalNumber<T>(0)));
static_assert(!(OptionalNumber<T>(0) == OptionalNumber<T>()));
static_assert(OptionalNumber<T>() != OptionalNumber<T>(3));
static_assert(OptionalNumber<T>(3) != OptionalNumber<T>());
static_assert(OptionalNumber<T>(0) != OptionalNumber<T>(3));
static_assert(!(OptionalNumber<T>() != OptionalNumber<T>()));
static_assert(!(OptionalNumber<T>(3) != OptionalNumber<T>(3)));
static_assert(OptionalNumber<T>() <= OptionalNumber<T>());
static_assert(OptionalNumber<T>() <= OptionalNumber<T>(3));
static_assert(OptionalNumber<T>(3) <= OptionalNumber<T>(3));
static_assert(!(OptionalNumber<T>(3) <= OptionalNumber<T>()));
static_assert(!(OptionalNumber<T>(3) <= OptionalNumber<T>(0)));
static_assert(OptionalNumber<T>() < OptionalNumber<T>(3));
static_assert(OptionalNumber<T>(0) < OptionalNumber<T>(3));
static_assert(!(OptionalNumber<T>(0) < OptionalNumber<T>()));
static_assert(!(OptionalNumber<T>(3) < OptionalNumber<T>(0)));
static_assert(OptionalNumber<T>(3) >= OptionalNumber<T>());
static_assert(OptionalNumber<T>() >= OptionalNumber<T>());
static_assert(!(OptionalNumber<T>() >= OptionalNumber<T>(3)));
static_assert(!(OptionalNumber<T>(0) >= OptionalNumber<T>(3)));
static_assert(OptionalNumber<T>(3) > OptionalNumber<T>());
static_assert(OptionalNumber<T>(3) > OptionalNumber<T>(0));
static_assert(!(OptionalNumber<T>() > OptionalNumber<T>(0)));
static_assert(!(OptionalNumber<T>(0) > OptionalNumber<T>(0)));
// Comparisons with optional number lhs and literal rhs
static_assert(OptionalNumber<T>(3) == 3);
static_assert(!(OptionalNumber<T>() == 3));
static_assert(!(OptionalNumber<T>(3) == 0));
static_assert(OptionalNumber<T>() != 3);
static_assert(OptionalNumber<T>(0) != 3);
static_assert(!(OptionalNumber<T>(3) != 3));
static_assert(OptionalNumber<T>() <= 3);
static_assert(OptionalNumber<T>(0) <= 3);
static_assert(!(OptionalNumber<T>(3) <= 0));
static_assert(OptionalNumber<T>() < 0);
static_assert(OptionalNumber<T>(0) < 3);
static_assert(!(OptionalNumber<T>(3) < 0));
static_assert(OptionalNumber<T>(0) >= 0);
static_assert(OptionalNumber<T>(3) >= 3);
static_assert(!(OptionalNumber<T>() >= 0));
static_assert(!(OptionalNumber<T>(0) >= 3));
static_assert(OptionalNumber<T>(3) > 0);
static_assert(!(OptionalNumber<T>(0) > 3));
static_assert(!(OptionalNumber<T>() > 0));
static_assert(GetSwappedLhs(OptionalNumber<T>(5), OptionalNumber<T>(5)) == 5);
static_assert(GetSwappedLhs(OptionalNumber<T>(5), OptionalNumber<T>(1)) == 1);
static_assert(GetSwappedRhs(OptionalNumber<T>(5), OptionalNumber<T>(1)) == 5);
static_assert(GetSwappedLhs(OptionalNumber<T>(), OptionalNumber<T>(5)) == 5);
static_assert(!GetSwappedRhs(OptionalNumber<T>(), OptionalNumber<T>(5)));
static_assert(!GetSwappedLhs(OptionalNumber<T>(5), OptionalNumber<T>()));
static_assert(GetSwappedRhs(OptionalNumber<T>(5), OptionalNumber<T>()) == 5);
static_assert(!GetSwappedLhs(OptionalNumber<T>(), OptionalNumber<T>()));
static_assert(!GetSwappedRhs(OptionalNumber<T>(), OptionalNumber<T>()));
};
template class Test<unsigned char>;
template class Test<int>;
template class Test<std::size_t>;
template class Test<float>;
template class Test<double>;
static_assert(OptionalNumber<std::uint8_t>::UnsetValue == 255);
static_assert(OptionalNumber<std::int8_t>::UnsetValue == -128);
static_assert(OptionalNumber<std::uint16_t>::UnsetValue == 65535);
static_assert(OptionalNumber<std::int16_t>::UnsetValue == -32768);
static_assert(OptionalNumber<float>::UnsetValue ==
std::numeric_limits<float>::lowest());
static_assert(OptionalNumber<double>::UnsetValue ==
std::numeric_limits<double>::lowest());
BOOST_AUTO_TEST_SUITE(optional_number)
BOOST_AUTO_TEST_CASE(from_std_optional) {
const std::optional<size_t> std_unset;
const std::optional<size_t> std_five(5);
aocommon::OptionalNumber<size_t> value_a(std_five);
BOOST_CHECK(value_a.HasValue());
BOOST_CHECK_EQUAL(*std_five, *value_a);
aocommon::OptionalNumber<size_t> value_b(std_unset);
BOOST_CHECK(!value_b.HasValue());
const std::optional<size_t> std_six(6);
value_a = std_six;
BOOST_CHECK(value_a.HasValue());
BOOST_CHECK_EQUAL(*std_six, *value_a);
// from unset to set
value_b = std_six;
BOOST_CHECK(value_b.HasValue());
BOOST_CHECK_EQUAL(*std_six, *value_b);
// from set to unset
value_a = std_unset;
BOOST_CHECK(!value_a.HasValue());
// from unset to unset
value_a = std_unset;
BOOST_CHECK(!value_a.HasValue());
}
BOOST_AUTO_TEST_SUITE_END()
} // namespace
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