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109 lines
3.3 KiB
109 lines
3.3 KiB
var count = (function random(Decimal) {
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var start = +new Date(),
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dp, error, i, j, k, log, m, r,
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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.js');
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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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log('\n Testing random...');
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Decimal.config({ errors: true, crypto: false });
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for ( i = 0; i < 9996; i++ ) {
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//Decimal.crypto = false;
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//Decimal.crypto = true;
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// 50% chance that Decimal.crypto is true.
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//Decimal.crypto = Math.random() > 0.5;
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if ( Math.random() > 0.5 ) {
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dp = Decimal.precision = Math.random() * 10 + 1 | 0;
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r = Decimal.random();
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} else {
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dp = Math.random() * 10 | 0;
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r = Decimal.random(dp);
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}
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//log(r.toString());
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if ( r.c[0] ) {
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j = r.c.length;
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k = r.c[j - 1];
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j *= 7;
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// Decrement for trailing zeros in last element of r.c.
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for ( ; k % 10 === 0; k /= 10, j-- );
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} else {
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j = 0;
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}
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// Check number of decimal places (j is actual dp).
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if ( j > dp ) {
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m = ' r.c.length - r.e - 1 > dp';
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// Check 0 <= r < 1
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} else if ( r.lt(0) || r.gte(1) ) {
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m = ' r.lt(0) || r.gte(1)';
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// Check that the attributes of r are formed correctly.
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} else if ( !r.eq( new Decimal(r) ) || !r.eq( new Decimal( r.toString() ) ) ) {
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m = ' !r.eq( new Decimal(r) ) || !r.eq( new Decimal( r.toString() ) )';
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}
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total++;
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if (m) {
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error('\n Test number: ' + total + ' failed');
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error(m);
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error(' r: ' + r);
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error(' r.c: ' + r.c);
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error(' r.e: ' + r.e);
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error(' r.s: ' + r.s);
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error(' dp: ' + dp);
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m = null;
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} else {
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passed++;
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}
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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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