45 lines
1,002 B
JavaScript
45 lines
1,002 B
JavaScript
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'use strict';
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var test = require('tape');
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var hasBigInts = require('..');
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test('interface', function (t) {
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t.equal(typeof hasBigInts, 'function', 'is a function');
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t.equal(typeof hasBigInts(), 'boolean', 'returns a boolean');
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t.end();
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});
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test('BigInts are supported', { skip: !hasBigInts() }, function (t) {
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t.equal(typeof BigInt, 'function', 'global BigInt is a function');
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if (typeof BigInt !== 'function') {
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return;
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}
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t.equal(BigInt(42), BigInt(42), '42n === 42n');
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t['throws'](
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function () { BigInt(NaN); },
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RangeError,
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'NaN is not an integer; BigInt(NaN) throws'
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);
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t['throws'](
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function () { BigInt(Infinity); },
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RangeError,
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'Infinity is not an integer; BigInt(Infinity) throws'
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);
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t['throws'](
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function () { BigInt(1.1); },
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RangeError,
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'1.1 is not an integer; BigInt(1.1) throws'
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);
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t.end();
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});
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test('BigInts are not supported', { skip: hasBigInts() }, function (t) {
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t.equal(typeof BigInt, 'undefined', 'global BigInt is undefined');
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t.end();
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});
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