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3d8532f851
PR-URL: https://github.com/nodejs/node/pull/19691 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
52 lines
1.6 KiB
JavaScript
52 lines
1.6 KiB
JavaScript
'use strict';
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require('../common');
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const assert = require('assert');
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const buf = Buffer.allocUnsafe(8);
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['LE', 'BE'].forEach(function(endianness) {
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// Should allow simple BigInts to be written and read
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let val = 123456789n;
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buf['writeBigInt64' + endianness](val, 0);
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let rtn = buf['readBigInt64' + endianness](0);
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assert.strictEqual(val, rtn);
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// Should allow INT64_MAX to be written and read
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val = 0x7fffffffffffffffn;
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buf['writeBigInt64' + endianness](val, 0);
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rtn = buf['readBigInt64' + endianness](0);
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assert.strictEqual(val, rtn);
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// Should read and write a negative signed 64-bit integer
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val = -123456789n;
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buf['writeBigInt64' + endianness](val, 0);
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assert.strictEqual(val, buf['readBigInt64' + endianness](0));
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// Should read and write an unsigned 64-bit integer
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val = 123456789n;
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buf['writeBigUInt64' + endianness](val, 0);
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assert.strictEqual(val, buf['readBigUInt64' + endianness](0));
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// Should throw a RangeError upon INT64_MAX+1 being written
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assert.throws(function() {
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const val = 0x8000000000000000n;
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buf['writeBigInt64' + endianness](val, 0);
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}, RangeError);
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// Should throw a RangeError upon UINT64_MAX+1 being written
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assert.throws(function() {
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const val = 0x10000000000000000n;
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buf['writeBigUInt64' + endianness](val, 0);
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}, RangeError);
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// Should throw a TypeError upon invalid input
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assert.throws(function() {
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buf['writeBigInt64' + endianness]('bad', 0);
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}, TypeError);
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// Should throw a TypeError upon invalid input
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assert.throws(function() {
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buf['writeBigUInt64' + endianness]('bad', 0);
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}, TypeError);
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});
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