mirror of
https://github.com/MikeMcl/big.js.git
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db8091b580
Add optional rounding mode parameter to `toExponential`, `toFixed` and `toPrecision`. Add a strict mode to disallow imprecise number/Big conversions when `Big.strict = true`. Add `toNumber` method. Add `prec` method to round a Big to a specified number of significant digits. Add version selector to API documentation. Change `toJSON` to return exponential format. Remove *big.min.js*. Remove `Big.version`. Rename *doc* folder to *docs* to use it as the Github publishing source. Add legacy API documentation to *docs*. Add *README* to *perf* directory. Refactor test suite, and add `toNumber` and `prec` tests. Update *README*.
95 lines
2.2 KiB
JavaScript
95 lines
2.2 KiB
JavaScript
// Add `test` to global scope.
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test = (function () {
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var count, passed, write;
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if (typeof window != 'undefined') {
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write = function (str) {
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document.body.innerHTML += str.replace(/\n/g, '<br>').replace(/ /g, ' ');
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};
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} else {
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// Add `Big` to global scope.
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Big = require('../big');
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write = process.stdout.write.bind(process.stdout);
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}
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function fail(count, expected, actual) {
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write('\n Test number ' + count + ' failed' + '\n Expected: ' + expected + '\n Actual: ' + actual);
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//process.exit();
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}
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function isBigZero(n) {
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return n && n.c && n.c.length === 1 && n.c[0] === 0 && n.e === 0 && (n.s === 1 || n.s === -1);
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}
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function test(name, func) {
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var time;
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write(' Testing ' + name + '...');
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passed = count = 0;
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time = new Date();
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func();
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time = new Date() - time;
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test.result = [passed, count, time];
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if (passed !== count) write('\n');
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write(' ' + passed + ' of ' + count + ' tests passed in ' + time + ' ms\n');
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}
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test.areEqual = function (expected, actual) {
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++count;
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// If expected and actual are both NaN, consider them equal.
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if (expected === actual || expected !== expected && actual !== actual) {
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++passed;
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//write('\n Expected and actual: ' + actual);
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} else {
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fail(count, expected, actual);
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}
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};
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test.isException = function (func, msg) {
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var actual;
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++count;
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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 instanceof Error && /\[big\.js\]/.test(actual.message)) {
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++passed;
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} else {
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fail(count, (msg + ' to raise an fail.'), (actual || 'no exception'));
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}
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};
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test.isNegativeZero = function (actual) {
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++count;
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if (isBigZero(actual) && actual.s === -1) {
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++passed;
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} else {
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fail(count, 'negative zero', actual);
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}
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};
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test.isPositiveZero = function (actual) {
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++count;
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if (isBigZero(actual) && actual.s === 1) {
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++passed;
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} else {
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fail(count, 'positive zero', actual);
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}
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};
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test.isTrue = function (actual) {
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++count;
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if (actual === true) {
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++passed;
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} else {
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fail(count, 'true', actual);
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}
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};
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test.write = write;
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return test;
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})();
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