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#include "gate/tests.hpp"
#include "gate/mathematics.hpp"

using namespace gate;

GATEXX_TEST_UNIT(Math)
{
    GATEXX_TEST_CHECK(math::isZero(1.1 - 1.1));
    GATEXX_TEST_CHECK(!math::isZero(2.0 - 1.1));
    GATEXX_TEST_CHECK(math::isZero(1.1f - 1.1f));
    GATEXX_TEST_CHECK(!math::isZero(2.0f - 1.1f));
    GATEXX_TEST_CHECK(math::isZero(0));
    GATEXX_TEST_CHECK(!math::isZero(1));

    GATEXX_TEST_CHECK(!math::isNan(0));
    GATEXX_TEST_CHECK(!math::isNan(0.0f));
    GATEXX_TEST_CHECK(!math::isNan(0.0));
    GATEXX_TEST_CHECK(!math::isInfinite(0));
    GATEXX_TEST_CHECK(!math::isInfinite(0.0f));
    GATEXX_TEST_CHECK(!math::isInfinite(0.0));

    GATEXX_TEST_CHECK(-1 == math::signum(static_cast<gate::int8_t>(-2)));
    GATEXX_TEST_CHECK(-1 == math::signum(static_cast<gate::int16_t>(-2)));
    GATEXX_TEST_CHECK(-1 == math::signum(static_cast<gate::int32_t>(-2)));
    GATEXX_TEST_CHECK(-1 == math::signum(static_cast<gate::int64_t>(-2)));
    GATEXX_TEST_CHECK(-1 == math::signum(-2.0f));
    GATEXX_TEST_CHECK(-1 == math::signum(-2.0));

    GATEXX_TEST_CHECK(2 == math::abs(static_cast<gate::int32_t>(-2)));
    GATEXX_TEST_CHECK(2 == math::abs(static_cast<gate::int32_t>(-2)));
    GATEXX_TEST_CHECK(2 == math::abs(static_cast<gate::int32_t>(-2)));
    GATEXX_TEST_CHECK(2 == math::abs(static_cast<gate::uint32_t>(2)));

    GATEXX_TEST_CHECK(1 == math::minimum(1, 2));
    GATEXX_TEST_CHECK(2 == math::maximum(1, 2));

    GATEXX_TEST_CHECK(5 == math::decimal_length(0.12345));
    GATEXX_TEST_CHECK(math::isZero(math::cos(0.0) - 1.0));
    GATEXX_TEST_CHECK(math::isZero(math::cos(0.0f) - 1.0f));
    GATEXX_TEST_CHECK(math::isZero(math::sin(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::sin(0.0f)));
    GATEXX_TEST_CHECK(math::isZero(math::tan(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::tan(0.0f)));

    GATEXX_TEST_CHECK(math::isZero(math::acos(1.0)));
    GATEXX_TEST_CHECK(math::isZero(math::acos(1.0f)));
    GATEXX_TEST_CHECK(math::isZero(math::asin(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::asin(0.0f)));
    GATEXX_TEST_CHECK(math::isZero(math::atan(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::atan(0.0f)));


    GATEXX_TEST_CHECK(math::isZero(math::atan2(0.0, 0.0)));<--- Passing values 0.0 and 0.0 to atan2() leads to implementation-defined result.
    GATEXX_TEST_CHECK(math::isZero(math::atan2(0.0f, 0.0f)));<--- Passing values 0.0f and 0.0f to atan2() leads to implementation-defined result.
    GATEXX_TEST_CHECK(math::isZero(math::cosh(0.0) - 1.0));
    GATEXX_TEST_CHECK(math::isZero(math::cosh(0.0f) - 1.0f));
    GATEXX_TEST_CHECK(math::isZero(math::sinh(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::sinh(0.0f)));
    GATEXX_TEST_CHECK(math::isZero(math::tanh(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::tanh(0.0f)));
    GATEXX_TEST_CHECK(math::isZero(math::acosh(1.0)));
    GATEXX_TEST_CHECK(math::isZero(math::acosh(1.0f)));
    GATEXX_TEST_CHECK(math::isZero(math::asinh(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::asinh(0.0f)));
    GATEXX_TEST_CHECK(math::isZero(math::atanh(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::atanh(0.0f)));

    GATEXX_TEST_CHECK(math::isZero(math::exp(0.0) - 1.0));
    GATEXX_TEST_CHECK(math::isZero(math::exp(0.0f) - 1.0f));
    int t = 0;
    GATEXX_TEST_CHECK(math::isZero(math::frexp(0.0, &t)));
    GATEXX_TEST_CHECK(math::isZero(math::frexp(0.0f, &t)));
    GATEXX_TEST_CHECK(math::isZero(math::log(1.0)));
    GATEXX_TEST_CHECK(math::isZero(math::log(1.0f)));
    GATEXX_TEST_CHECK(math::isZero(math::log10(1.0)));
    GATEXX_TEST_CHECK(math::isZero(math::log10(1.0f)));
    real64_t r64 = 0.0;
    GATEXX_TEST_CHECK(math::isZero(math::modf(0.0, &r64)));
    real32_t r32 = 0.0;
    GATEXX_TEST_CHECK(math::isZero(math::modf(0.0f, &r32)));
    GATEXX_TEST_CHECK(math::isZero(math::pow(1.0, 1.0) - 1.0));
    GATEXX_TEST_CHECK(math::isZero(math::pow(1.0f, 1.0f) - 1.0f));

    GATEXX_TEST_CHECK(math::isZero(math::sqrt(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::sqrt(0.0f)));
    GATEXX_TEST_CHECK(math::isZero(math::ceil(-0.6)));
    GATEXX_TEST_CHECK(math::isZero(math::ceil(-0.6f)));
    GATEXX_TEST_CHECK(math::isZero(math::floor(0.6)));
    GATEXX_TEST_CHECK(math::isZero(math::floor(0.6f)));
    GATEXX_TEST_CHECK(math::isZero(math::deg2rad(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::deg2rad(0.0f)));
    GATEXX_TEST_CHECK(math::isZero(math::rad2deg(0.0)));
    GATEXX_TEST_CHECK(math::isZero(math::rad2deg(0.0f)));
}