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113 lines
3.3 KiB
JavaScript
113 lines
3.3 KiB
JavaScript
// deno-fmt-ignore-file
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// deno-lint-ignore-file
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// Taken from Node 18.12.1
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// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
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'use strict';
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require('../common');
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const assert = require('assert');
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// Testing basic buffer read functions
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const buf = Buffer.from([0xa4, 0xfd, 0x48, 0xea, 0xcf, 0xff, 0xd9, 0x01, 0xde]);
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function read(buff, funx, args, expected) {
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assert.strictEqual(buff[funx](...args), expected);
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assert.throws(
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() => buff[funx](-1, args[1]),
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{ code: 'ERR_OUT_OF_RANGE' }
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);
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}
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// Testing basic functionality of readDoubleBE() and readDoubleLE()
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read(buf, 'readDoubleBE', [1], -3.1827727774563287e+295);
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read(buf, 'readDoubleLE', [1], -6.966010051009108e+144);
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// Testing basic functionality of readFloatBE() and readFloatLE()
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read(buf, 'readFloatBE', [1], -1.6691549692541768e+37);
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read(buf, 'readFloatLE', [1], -7861303808);
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// Testing basic functionality of readInt8()
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read(buf, 'readInt8', [1], -3);
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// Testing basic functionality of readInt16BE() and readInt16LE()
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read(buf, 'readInt16BE', [1], -696);
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read(buf, 'readInt16LE', [1], 0x48fd);
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// Testing basic functionality of readInt32BE() and readInt32LE()
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read(buf, 'readInt32BE', [1], -45552945);
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read(buf, 'readInt32LE', [1], -806729475);
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// Testing basic functionality of readIntBE() and readIntLE()
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read(buf, 'readIntBE', [1, 1], -3);
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read(buf, 'readIntLE', [2, 1], 0x48);
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// Testing basic functionality of readUInt8()
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read(buf, 'readUInt8', [1], 0xfd);
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// Testing basic functionality of readUInt16BE() and readUInt16LE()
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read(buf, 'readUInt16BE', [2], 0x48ea);
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read(buf, 'readUInt16LE', [2], 0xea48);
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// Testing basic functionality of readUInt32BE() and readUInt32LE()
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read(buf, 'readUInt32BE', [1], 0xfd48eacf);
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read(buf, 'readUInt32LE', [1], 0xcfea48fd);
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// Testing basic functionality of readUIntBE() and readUIntLE()
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read(buf, 'readUIntBE', [2, 2], 0x48ea);
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read(buf, 'readUIntLE', [2, 2], 0xea48);
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// Error name and message
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const OOR_ERROR =
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{
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name: 'RangeError'
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};
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const OOB_ERROR =
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{
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name: 'RangeError',
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message: 'Attempt to access memory outside buffer bounds'
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};
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// Attempt to overflow buffers, similar to previous bug in array buffers
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assert.throws(
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() => Buffer.allocUnsafe(8).readFloatBE(0xffffffff), OOR_ERROR);
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assert.throws(
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() => Buffer.allocUnsafe(8).readFloatLE(0xffffffff), OOR_ERROR);
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// Ensure negative values can't get past offset
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assert.throws(
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() => Buffer.allocUnsafe(8).readFloatBE(-1), OOR_ERROR);
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assert.throws(
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() => Buffer.allocUnsafe(8).readFloatLE(-1), OOR_ERROR);
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// Offset checks
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{
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const buf = Buffer.allocUnsafe(0);
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assert.throws(
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() => buf.readUInt8(0), OOB_ERROR);
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assert.throws(
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() => buf.readInt8(0), OOB_ERROR);
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}
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[16, 32].forEach((bit) => {
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const buf = Buffer.allocUnsafe(bit / 8 - 1);
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[`Int${bit}B`, `Int${bit}L`, `UInt${bit}B`, `UInt${bit}L`].forEach((fn) => {
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assert.throws(
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() => buf[`read${fn}E`](0), OOB_ERROR);
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});
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});
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[16, 32].forEach((bits) => {
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const buf = Buffer.from([0xFF, 0xFF, 0xFF, 0xFF]);
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['LE', 'BE'].forEach((endian) => {
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assert.strictEqual(buf[`readUInt${bits}${endian}`](0),
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(0xFFFFFFFF >>> (32 - bits)));
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assert.strictEqual(buf[`readInt${bits}${endian}`](0),
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(0xFFFFFFFF >> (32 - bits)));
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});
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});
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