mirror of
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204 lines
6.1 KiB
JavaScript
204 lines
6.1 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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// Test OOB
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{
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const buffer = Buffer.alloc(4);
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['Int8', 'Int16BE', 'Int16LE', 'Int32BE', 'Int32LE'].forEach((fn) => {
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// Verify that default offset works fine.
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buffer[`read${fn}`](undefined);
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buffer[`read${fn}`]();
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['', '0', null, {}, [], () => {}, true, false].forEach((o) => {
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assert.throws(
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() => buffer[`read${fn}`](o),
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{
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code: 'ERR_INVALID_ARG_TYPE',
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name: 'TypeError'
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});
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});
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[Infinity, -1, -4294967295].forEach((offset) => {
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assert.throws(
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() => buffer[`read${fn}`](offset),
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{
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError'
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});
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});
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[NaN, 1.01].forEach((offset) => {
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assert.throws(
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() => buffer[`read${fn}`](offset),
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{
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "offset" is out of range. ' +
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`It must be an integer. Received ${offset}`
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});
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});
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});
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}
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// Test 8 bit signed integers
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{
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const data = Buffer.from([0x23, 0xab, 0x7c, 0xef]);
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assert.strictEqual(data.readInt8(0), 0x23);
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data[0] = 0xff;
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assert.strictEqual(data.readInt8(0), -1);
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data[0] = 0x87;
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assert.strictEqual(data.readInt8(0), -121);
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assert.strictEqual(data.readInt8(1), -85);
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assert.strictEqual(data.readInt8(2), 124);
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assert.strictEqual(data.readInt8(3), -17);
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}
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// Test 16 bit integers
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{
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const buffer = Buffer.from([0x16, 0x79, 0x65, 0x6e, 0x69, 0x78]);
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assert.strictEqual(buffer.readInt16BE(0), 0x1679);
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assert.strictEqual(buffer.readInt16LE(0), 0x7916);
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buffer[0] = 0xff;
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buffer[1] = 0x80;
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assert.strictEqual(buffer.readInt16BE(0), -128);
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assert.strictEqual(buffer.readInt16LE(0), -32513);
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buffer[0] = 0x77;
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buffer[1] = 0x65;
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assert.strictEqual(buffer.readInt16BE(0), 0x7765);
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assert.strictEqual(buffer.readInt16BE(1), 0x6565);
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assert.strictEqual(buffer.readInt16BE(2), 0x656e);
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assert.strictEqual(buffer.readInt16BE(3), 0x6e69);
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assert.strictEqual(buffer.readInt16BE(4), 0x6978);
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assert.strictEqual(buffer.readInt16LE(0), 0x6577);
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assert.strictEqual(buffer.readInt16LE(1), 0x6565);
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assert.strictEqual(buffer.readInt16LE(2), 0x6e65);
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assert.strictEqual(buffer.readInt16LE(3), 0x696e);
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assert.strictEqual(buffer.readInt16LE(4), 0x7869);
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}
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// Test 32 bit integers
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{
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const buffer = Buffer.from([0x43, 0x53, 0x16, 0x79, 0x36, 0x17]);
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assert.strictEqual(buffer.readInt32BE(0), 0x43531679);
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assert.strictEqual(buffer.readInt32LE(0), 0x79165343);
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buffer[0] = 0xff;
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buffer[1] = 0xfe;
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buffer[2] = 0xef;
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buffer[3] = 0xfa;
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assert.strictEqual(buffer.readInt32BE(0), -69638);
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assert.strictEqual(buffer.readInt32LE(0), -84934913);
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buffer[0] = 0x42;
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buffer[1] = 0xc3;
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buffer[2] = 0x95;
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buffer[3] = 0xa9;
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assert.strictEqual(buffer.readInt32BE(0), 0x42c395a9);
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assert.strictEqual(buffer.readInt32BE(1), -1013601994);
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assert.strictEqual(buffer.readInt32BE(2), -1784072681);
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assert.strictEqual(buffer.readInt32LE(0), -1449802942);
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assert.strictEqual(buffer.readInt32LE(1), 917083587);
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assert.strictEqual(buffer.readInt32LE(2), 389458325);
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}
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// Test Int
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{
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const buffer = Buffer.from([0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08]);
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assert.strictEqual(buffer.readIntLE(0, 1), 0x01);
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assert.strictEqual(buffer.readIntBE(0, 1), 0x01);
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assert.strictEqual(buffer.readIntLE(0, 3), 0x030201);
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assert.strictEqual(buffer.readIntBE(0, 3), 0x010203);
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assert.strictEqual(buffer.readIntLE(0, 5), 0x0504030201);
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assert.strictEqual(buffer.readIntBE(0, 5), 0x0102030405);
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assert.strictEqual(buffer.readIntLE(0, 6), 0x060504030201);
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assert.strictEqual(buffer.readIntBE(0, 6), 0x010203040506);
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assert.strictEqual(buffer.readIntLE(1, 6), 0x070605040302);
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assert.strictEqual(buffer.readIntBE(1, 6), 0x020304050607);
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assert.strictEqual(buffer.readIntLE(2, 6), 0x080706050403);
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assert.strictEqual(buffer.readIntBE(2, 6), 0x030405060708);
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// Check byteLength.
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['readIntBE', 'readIntLE'].forEach((fn) => {
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['', '0', null, {}, [], () => {}, true, false, undefined].forEach((len) => {
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assert.throws(
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() => buffer[fn](0, len),
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{ code: 'ERR_INVALID_ARG_TYPE' });
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});
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[Infinity, -1].forEach((byteLength) => {
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assert.throws(
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() => buffer[fn](0, byteLength),
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{
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code: 'ERR_OUT_OF_RANGE',
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message: 'The value of "byteLength" is out of range. ' +
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`It must be >= 1 and <= 6. Received ${byteLength}`
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});
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});
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[NaN, 1.01].forEach((byteLength) => {
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assert.throws(
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() => buffer[fn](0, byteLength),
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{
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "byteLength" is out of range. ' +
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`It must be an integer. Received ${byteLength}`
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});
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});
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});
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// Test 1 to 6 bytes.
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for (let i = 1; i <= 6; i++) {
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['readIntBE', 'readIntLE'].forEach((fn) => {
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['', '0', null, {}, [], () => {}, true, false, undefined].forEach((o) => {
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assert.throws(
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() => buffer[fn](o, i),
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{
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code: 'ERR_INVALID_ARG_TYPE',
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name: 'TypeError'
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});
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});
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[Infinity, -1, -4294967295].forEach((offset) => {
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assert.throws(
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() => buffer[fn](offset, i),
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{
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "offset" is out of range. ' +
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`It must be >= 0 and <= ${8 - i}. Received ${offset}`
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});
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});
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[NaN, 1.01].forEach((offset) => {
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assert.throws(
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() => buffer[fn](offset, i),
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{
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "offset" is out of range. ' +
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`It must be an integer. Received ${offset}`
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});
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});
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});
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}
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}
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