mirror of
https://github.com/MikeMcl/decimal.js.git
synced 2024-10-27 20:34:12 +00:00
74 lines
2.1 KiB
JavaScript
74 lines
2.1 KiB
JavaScript
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if (typeof T === 'undefined') require('../setup');
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(function () {
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T('decimalPlaces and precision');
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function t(n, dp, sd, zs) {
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T.assertEqual(dp, new Decimal(n).dp());
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T.assertEqual(dp, new Decimal(n).decimalPlaces());
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T.assertEqual(sd, new Decimal(n).sd(zs));
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T.assertEqual(sd, new Decimal(n).precision(zs));
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}
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function tx(fn, msg) {
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T.assertException(fn, msg);
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}
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Decimal.config({
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precision: 20,
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rounding: 4,
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toExpNeg: -7,
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toExpPos: 21,
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minE: -9e15,
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maxE: 9e15
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});
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t(0, 0, 1);
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t(-0, 0, 1);
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t(NaN, NaN, NaN);
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t(Infinity, NaN, NaN);
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t(-Infinity, NaN, NaN);
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t(1, 0, 1);
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t(-1, 0, 1);
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t(100, 0, 1);
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t(100, 0, 1, 0);
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t(100, 0, 1, false);
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t(100, 0, 3, 1);
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t(100, 0, 3, true);
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t('0.0012345689', 10, 8);
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t('0.0012345689', 10, 8, 0);
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t('0.0012345689', 10, 8, false);
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t('0.0012345689', 10, 8, 1);
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t('0.0012345689', 10, 8, true);
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t('987654321000000.0012345689000001', 16, 31, 0);
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t('987654321000000.0012345689000001', 16, 31, 1);
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t('1e+123', 0, 1);
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t('1e+123', 0, 124, 1);
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t('1e-123', 123, 1);
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t('1e-123', 123, 1, 1);
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t('9.9999e+9000000000000000', 0, 5, false);
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t('9.9999e+9000000000000000', 0, 9000000000000001, true);
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t('-9.9999e+9000000000000000', 0, 5, false);
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t('-9.9999e+9000000000000000', 0, 9000000000000001, true);
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t('1e-9000000000000000', 9e15, 1, false);
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t('1e-9000000000000000', 9e15, 1, true);
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t('-1e-9000000000000000', 9e15, 1, false);
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t('-1e-9000000000000000', 9e15, 1, true);
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t('55325252050000000000000000000000.000000004534500000001', 21, 53);
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tx(function () {new Decimal(1).precision(null)}, "new Decimal(1).precision(null)");
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tx(function () {new Decimal(1).sd(null)}, "new Decimal(1).sd(null)");
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tx(function () {new Decimal(1).sd(2)}, "new Decimal(1).sd(2)");
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tx(function () {new Decimal(1).sd('3')}, "new Decimal(1).sd('3')");
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tx(function () {new Decimal(1).sd({})}, "new Decimal(1).sd({})");
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T.stop();
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})();
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