mirror of
https://github.com/MikeMcl/decimal.js.git
synced 2024-10-27 20:34:12 +00:00
187 lines
7.4 KiB
JavaScript
187 lines
7.4 KiB
JavaScript
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var count = (function toNearest(Decimal) {
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var start = +new Date(),
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log,
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error,
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u,
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passed = 0,
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total = 0;
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if (typeof window === 'undefined') {
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log = console.log;
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error = console.error;
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} else {
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log = function (str) { document.body.innerHTML += str.replace('\n', '<br>') };
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error = function (str) { document.body.innerHTML += '<div style="color: red">' +
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str.replace('\n', '<br>') + '</div>' };
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}
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if (!Decimal && typeof require === 'function') Decimal = require('../decimal');
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function assert(expected, actual) {
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total++;
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if (expected !== actual) {
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error('\n Test number: ' + total + ' failed');
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error(' Expected: ' + expected);
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error(' Actual: ' + actual);
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//process.exit();
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} else {
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passed++;
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//log('\n Expected and actual: ' + actual);
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}
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}
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function isMinusZero(n) {
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return n.toString() === '0' && n.s == -1;
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}
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function T(expected, value, n, pr, rm) {
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Decimal.precision = pr;
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assert(String(expected), String(new Decimal(value).toNearest(n, rm)));
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}
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log('\n Testing toNearest...');
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Decimal.config({
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precision: 20,
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rounding: 4,
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toExpNeg: -9e15,
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toExpPos: 9e15,
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minE: -9e15,
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maxE: 9e15,
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errors: true
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});
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T('Infinity', Infinity, u, 20, u);
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T('-Infinity', -Infinity, u, 20, u);
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T('NaN', NaN, u, 20, u);
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T('NaN', NaN, NaN, 20, u);
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T('NaN', NaN, Infinity, 20, u);
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T('NaN', NaN, -Infinity, 20, u);
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T('NaN', NaN, 0, 20, u);
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T('NaN', NaN, -0, 20, u);
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T('Infinity', '9.999e+9000000000000000', '1e+9000000000000001', 20, u);
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T('Infinity', '9.999e+9000000000000000', '-1e+9000000000000001', 20, u);
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T('-Infinity', '-9.999e+9000000000000000', '1e+9000000000000001', 20, u);
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T('-Infinity', '-9.999e+9000000000000000', '-1e+9000000000000001', 20, u);
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T('9.999e+9000000000000000', '9.999e+9000000000000000', u, 20, u);
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T('-9.999e+9000000000000000', '-9.999e+9000000000000000', u, 20, u);
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T('NaN', 123.456, NaN, 20, u);
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T('Infinity', 123.456, Infinity, 20, u);
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T('Infinity', 123.456, -Infinity, 20, u);
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T('0', 123.456, 0, 20, u);
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T('0', 123.456, '-0', 20, u);
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T('NaN', -123.456, NaN, 20, u);
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T('-Infinity', -123.456, Infinity, 20, u);
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T('-Infinity', -123.456, -Infinity, 20, u);
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T('0', -123.456, '-0', 20, u);
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T('0', 0, 0, 20, u);
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T('Infinity', 0, Infinity, 20, u);
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T('Infinity', 0, -Infinity, 20, u);
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T('-Infinity', -0, Infinity, 20, u);
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T('-Infinity', -0, -Infinity, 20, u);
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T('0', 1, -3, 20, u);
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T('0', -1, -3, 20, u);
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T('3', 1.5, -3, 20, 0);
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T('0', -1.5, -3, 20, 1);
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T('-3', -1.5, -3, 20, 2);
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assert(false, isMinusZero(new Decimal(0).toNearest(0)));
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assert(true, isMinusZero(new Decimal(-1).toNearest(0)));
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assert(true, isMinusZero(new Decimal(-0).toNearest(0)));
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assert(false, isMinusZero(new Decimal(1).toNearest(0)));
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assert(false, isMinusZero(new Decimal(1).toNearest(-0)));
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assert(false, isMinusZero(new Decimal(1).toNearest(-3)));
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assert(true, isMinusZero(new Decimal(-1).toNearest(-3)));
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T('123', 123.456, u, 20, u);
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T('123', 123.456, 1, 20, u);
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T('123.5', 123.456, 0.1, 20, u);
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T('123.46', 123.456, 0.01, 20, u);
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T('123.456', 123.456, 0.001, 20, u);
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T('123', 123.456, -1, 20, u);
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T('123.5', 123.456, -0.1, 20, u);
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T('123.46', 123.456, -0.01, 20, u);
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T('123.456', 123.456, -0.001, 20, u);
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T('124', 123.456, '-2', 20, u);
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T('123.4', 123.456, '-0.2', 20, u);
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T('123.46', 123.456, '-0.02', 20, u);
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T('123.456', 123.456, '-0.002', 20, u);
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T('83105511540', '83105511539.5', 1, 11, 4);
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T('83105511539', '83105511539.499999999999999999999999999999', 1, 11, 4);
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T('83105511539', '83105511539.5', '1', 11, 5);
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T('83105511540', '83105511539.5000000000000000000001', 1, 11, 5);
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T('83105511540', '83105511539.5', new Decimal(1), 3, 4);
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T('83105511539', '83105511539.499999999999999999999999999999', 1, 3, 4);
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T('83105511539', '83105511539.5', new Decimal('1'), 3, 5);
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T('83105511540', '83105511539.5000000000000000000001', 1, 3, 5);
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T('83105511540', '83105511539.5', Decimal.ONE, 30, 4);
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T('83105511539', '83105511539.499999999999999999999999999999', 1, 30, 4);
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T('83105511539', '83105511539.5', 1, 30, 5);
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T('83105511540', '83105511539.5000000000000000000001', 1, 30, 5);
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T('83105511540', '83105511539.5', -1, 11, 4);
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T('83105511539', '83105511539.499999999999999999999999999999', -1, 11, 4);
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T('83105511539', '83105511539.5', '-1', 11, 5);
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T('83105511540', '83105511539.5000000000000000000001', -1, 11, 5);
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T('83105511540', '83105511539.5', new Decimal(-1), 3, 4);
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T('83105511539', '83105511539.499999999999999999999999999999', 1, 3, 4);
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T('83105511539', '83105511539.5', new Decimal('-1'), 3, 5);
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T('83105511540', '83105511539.5000000000000000000001', -1, 3, 5);
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T('83105511540', '83105511539.5', 1, 30, 0);
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T('83105511539', '83105511539.5', 1, 30, 1);
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T('83105511540', '83105511539.5', 1, 30, 2);
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T('83105511539', '83105511539.5', 1, 30, 3);
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T('83105511540', '83105511539.5', 1, 30, 4);
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T('83105511539', '83105511539.5', 1, 30, 5);
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T('83105511540', '83105511539.5', 1, 30, 6);
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T('83105511540', '83105511539.5', 1, 30, 7);
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T('83105511539', '83105511539.5', 1, 30, 8);
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T('83105511539', '83105511539.499999999999999999999999999999', u, 30, 0);
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T('83105511539', '83105511539.499999999999999999999999999999', 1, 30, 1);
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T('83105511539', '83105511539.499999999999999999999999999999', u, 30, 2);
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T('83105511539', '83105511539.499999999999999999999999999999', 1, 30, 3);
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T('83105511539', '83105511539.499999999999999999999999999999', u, 30, 4);
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T('83105511539', '83105511539.499999999999999999999999999999', 1, 30, 5);
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T('83105511539', '83105511539.499999999999999999999999999999', u, 30, 6);
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T('83105511539', '83105511539.499999999999999999999999999999', 1, 30, 7);
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T('83105511539', '83105511539.499999999999999999999999999999', u, 30, 8);
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T('83105511540', '83105511539.5000000000000000000001', u, 30, 0);
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T('83105511540', '83105511539.5000000000000000000001', 1, 30, 1);
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T('83105511540', '83105511539.5000000000000000000001', u, 30, 2);
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T('83105511540', '83105511539.5000000000000000000001', 1, 30, 3);
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T('83105511540', '83105511539.5000000000000000000001', u, 30, 4);
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T('83105511540', '83105511539.5000000000000000000001', 1, 30, 5);
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T('83105511540', '83105511539.5000000000000000000001', u, 30, 6);
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T('83105511540', '83105511539.5000000000000000000001', 1, 30, 7);
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T('83105511540', '83105511539.5000000000000000000001', u, 30, 8);
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Decimal.rounding = 0;
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T('83105511540', '83105511539.5', u, 11, u);
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Decimal.rounding = 1;
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T('83105511539', '83105511539.5', u, 11, u);
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T('3847560', '3847561.00000749', 10, 11, 0);
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T('42840000000000000', '42835000000000001', '1e+13', 2, 0);
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T('42840000000000000', '42835000000000001', '1e+13', 2, 1);
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T('42840000000000000', '42835000000000000.0002', '1e+13', 200, 0);
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T('42840000000000000', '42835000000000000.0002', '1e+13', 200, 1);
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log('\n ' + passed + ' of ' + total + ' tests passed in ' + (+new Date() - start) + ' ms \n');
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return [passed, total];
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})(this.Decimal);
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if (typeof module !== 'undefined' && module.exports) module.exports = count;
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