MikeMcl_decimal.js/test/modules/floor.js

if (typeof T === 'undefined') require('../setup');

(function () {
    T('floor');

    function t(expected, n) {
        T.assertEqual(expected,  Decimal.floor(n).valueOf());
        T.assertEqual(expected, new Decimal(n).floor().valueOf());
    }

    Decimal.config({
        precision: 20,
        rounding: 4,
        toExpNeg: -1e3,
        toExpPos: 1e3,
        minE: -9e15,
        maxE: 9e15
    });

    t('0', 0);
    t('-0', -0);
    t('0', '0.000');
    t('Infinity', Infinity);
    t('-Infinity', -Infinity);
    t('NaN', NaN);

    t('0', 0.1);
    t('0', '0.49999999999999994');
    t('0', 0.5);
    t('0', 0.7);
    t('-1', -0.1);
    t('-1', '-0.49999999999999994');
    t('-1', -0.5);
    t('-1', -0.7);
    t('1', 1);
    t('1', 1.1);
    t('1', 1.5);
    t('1', 1.7);
    t('-1', -1);
    t('-2', -1.1);
    t('-2', -1.5);
    t('-2', -1.7);

    t('1', '1.0000000000000000000000001');
    t('0', 0.999999999999);
    t('9', '9.999999999999');
    t('123456', 123456.789);
    t('-2', '-1.0000000000000000000000001');
    t('-1', -0.999999999999);
    t('-10', '-9.999999999999');
    t('-123457', -123456.789);

    t('-2075365', '-2075364.364286541923');
    t('60593539780450631', '60593539780450631');
    t('65937898671515', '65937898671515');
    t('-39719494751819198566799', '-39719494751819198566798.578');
    t('92627382695288166556', '92627382695288166556.8683774524284866028260448205069');
    t('-881574', '-881574');
    t('-3633239210', '-3633239209.654526163275621746013315304191073405508491056');
    t('-23970335459820625362', '-23970335459820625362');
    t('131869457416154038', '131869457416154038');
    t('-2685', '-2685');
    t('-4542227861', '-4542227860.9511298545226');
    t('-834103872107533086', '-834103872107533086');
    t('-1501493189970436', '-1501493189970435.74866616700317');
    t('70591', '70591.2244675522123484658978887');
    t('4446128540401735117', '4446128540401735117.435836700611264749985822486641350492901');
    t('-597273', '-597273');
    t('729117', '729117.5');
    t('-729118', '-729117.001');
    t('4803729546823170064608098091', '4803729546823170064608098091');
    t('-6581532150677269472830', '-6581532150677269472829.38194951340848938896000325718062365494');
    t('2949426983040959', '2949426983040959.8911208825380208568451907');
    t('25166', '25166.125888418871654557352055849116604612621573251770362');
    t('4560569286495', '4560569286495.98300685103599898554605198');
    t('13', '13.763105480576616251068323541559825687');
    t('9050999219306', '9050999219306.7846946346757664893036971777');
    t('39900924', '39900924.00000005');
    t('115911043168452445', '115911043168452445');
    t('20962819101135667464733349383', '20962819101135667464733349383.8959025798517496777183');
    t('4125789711001606948191', '4125789711001606948191.4707575965791242737346836');
    t('-6935502', '-6935501.294727166142750626019282');
    t('-2', '-1.518418076611593764852321765899');
    t('-35416', '-35416');
    t('6912783515683955988122411164548', '6912783515683955988122411164548.393');
    t('657', '657.0353902852');
    t('0', '0.00000000000000000000000017921822306362413915');
    t('1483059355427939255846407887', '1483059355427939255846407887.011361095342689876');
    t('7.722e+999999999999999', '7.722e+999999999999999');
    t('7722', '7722');
    t('0', '0.00000005');
    t('8551283060956479352', '8551283060956479352.5707396');
    t('0', '0.000000000000000000000000019904267');
    t('321978830777554620127500539', '321978830777554620127500539.339278568133088682532238002577');
    t('2073', '2073.532654804291079327244387978249477171032485250998396');
    t('677676305591', '677676305591.2');
    t('39181479479778357', '39181479479778357');
    t('0', '0.00000000000000000087964700066672916651');
    t('115083055948552475', '115083055948552475');
    t('9105942082143427451223', '9105942082143427451223');
    t('0', '0.00000000000000000000004');
    t('0', '0.000250427721966583680168028884692015623739');
    t('0', '0.000000000001585613219016120158734661293405081934');
    t('0', '0.00009');
    t('0', '0.000000090358252973411013592234');
    t('276312604693909858427', '276312604693909858427.21965306055697011390137926559');
    t('0', '0.0000252');
    t('1', '1.9999999999');

    Decimal.toExpNeg = -100;
    Decimal.toExpPos = 100;

    t('-1', -1e-308);
    t('-1e+308', -1e308);
    t('2.1e+308', '2.1e308');
    t('-1', '-1e-999');
    t('0', '1e-999');
    t('0', '1e-9000000000000000');
    t('-1', '-1e-9000000000000000');
    t('-0', '-9.9e-9000000000000001');    // underflow to zero
    t('9.999999e+9000000000000000', '9.999999e+9000000000000000');
    t('-9.999999e+9000000000000000', '-9.999999e+9000000000000000');
    t('Infinity', '1E9000000000000001');
    t('-Infinity', '-1e+9000000000000001');
    t('5.5879983320336874473209567979e+287894365', '5.5879983320336874473209567979e+287894365');
    t('-5.5879983320336874473209567979e+287894365', '-5.5879983320336874473209567979e+287894365');

    T.stop();
})();