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131 lines
3.7 KiB
131 lines
3.7 KiB
var count = (function random(Decimal) {
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var start = +new Date(),
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error, i, j, limit, log, pr, 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') {
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Decimal = require('../decimal');
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}
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function assert(result, r, message) {
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total++;
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if (result === true) {
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passed++;
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//log('\n r: ' + r);
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} else {
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error('\n Test number: ' + total + ' failed');
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error(' r: ' + r);
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error(' ' + message);
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//process.exit();
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}
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}
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function assertException(func, message) {
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var actual;
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total++;
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try {
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func();
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} catch (e) {
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actual = e;
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}
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if (actual && actual.name == 'Decimal Error') {
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passed++;
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//log('\n Expected and actual: ' + actual);
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} else {
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error('\n Test number: ' + total + ' failed');
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error('\n Expected: ' + message + ' to raise a Decimal Error.');
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error(' Actual: ' + (actual || 'no exception'));
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//process.exit();
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}
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}
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function T(limit, pr){
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var i, r, d;
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if ( !limit ) {
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limit = new Decimal(1);
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pr = Decimal.precision;
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}
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for ( i = 0; i < 17; i++ ) {
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r = Decimal.random(limit, pr);
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//log(r.toString());
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d = r.c.length;
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if ( pr == null ) {
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d = Math.max(d, r.e + 1) - r.e - 1;
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assert(d === 0, r, 'dp is not 0: ' + d);
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} else {
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assert(d <= pr, r, 'sd: ' + d + ' > pr: ' + pr);
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}
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assert(r.gte(0), r, 'r < 0');
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assert(r.lt(limit), r, 'r >= limit: ' + limit);
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}
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}
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log('\n Testing random...');
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// First iteration crypto: false, second iteration crypto: true.
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Decimal.config({ crypto: false, errors: true });
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for ( i = 0; i < 2; i++ ) {
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//log( '\n crypto: ' + Decimal.crypto );
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Decimal.precision = Math.random() * 100 + 1 | 0;
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//log( Decimal.precision );
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for ( j = 0; j < 10; j++ ) {
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T();
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T(u);
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T(null);
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T(1);
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T(1, u);
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T(1, null);
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T(10);
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T(1000);
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// limit will have 1 - 17 integer digits and 1 - 17 fraction digits.
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limit = +(Math.random() + '').slice(2, Math.random() * 17 + 3 | 0) +
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(Math.random() + '').slice(1, Math.random() * 17 + 3 | 0);
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if ( +limit == 0 ) {
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limit = 1;
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}
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//log(' limit: ' + limit);
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T(limit);
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// Precision. Integer 1 - 80.
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pr = Math.random() * 80 + 1 | 0;
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//log(' pr: ' + pr);
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T(limit, pr);
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}
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Decimal.config({ crypto: true });
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}
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assertException(function () { Decimal.random(Infinity) }, 'Infinity');
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assertException(function () { Decimal.random('-Infinity') }, "'-Infinity'");
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assertException(function () { Decimal.random(NaN) }, 'NaN');
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assertException(function () { Decimal.random('nanny') }, "'nanny'");
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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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