aa6fac68da
ESLint 4.x has stricter linting than previous versions. We are currently using the legacy indentation rules in the test directory. This commit changes the indentation of files to comply with the stricter 4.x linting and enable stricter linting in the test directory. PR-URL: https://github.com/nodejs/node/pull/14431 Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com> Reviewed-By: Trevor Norris <trev.norris@gmail.com>
1008 lines
33 KiB
JavaScript
1008 lines
33 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const vm = require('vm');
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const SlowBuffer = require('buffer').SlowBuffer;
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const b = Buffer.allocUnsafe(1024);
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assert.strictEqual(1024, b.length);
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b[0] = -1;
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assert.strictEqual(b[0], 255);
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for (let i = 0; i < 1024; i++) {
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b[i] = i % 256;
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}
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for (let i = 0; i < 1024; i++) {
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assert.strictEqual(i % 256, b[i]);
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}
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const c = Buffer.allocUnsafe(512);
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assert.strictEqual(512, c.length);
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const d = Buffer.from([]);
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assert.strictEqual(0, d.length);
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// Test offset properties
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{
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const b = Buffer.alloc(128);
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assert.strictEqual(128, b.length);
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assert.strictEqual(0, b.byteOffset);
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assert.strictEqual(0, b.offset);
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}
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// Test creating a Buffer from a Uint32Array
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{
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const ui32 = new Uint32Array(4).fill(42);
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const e = Buffer.from(ui32);
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for (const [index, value] of e.entries()) {
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assert.strictEqual(value, ui32[index]);
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}
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}
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// Test creating a Buffer from a Uint32Array (old constructor)
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{
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const ui32 = new Uint32Array(4).fill(42);
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const e = Buffer(ui32);
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for (const [key, value] of e.entries()) {
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assert.deepStrictEqual(value, ui32[key]);
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}
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}
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// Test invalid encoding for Buffer.toString
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assert.throws(() => b.toString('invalid'),
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/Unknown encoding: invalid/);
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// invalid encoding for Buffer.write
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assert.throws(() => b.write('test string', 0, 5, 'invalid'),
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/Unknown encoding: invalid/);
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// unsupported arguments for Buffer.write
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assert.throws(() => b.write('test', 'utf8', 0),
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/is no longer supported/);
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// try to create 0-length buffers
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assert.doesNotThrow(() => Buffer.from(''));
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assert.doesNotThrow(() => Buffer.from('', 'ascii'));
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assert.doesNotThrow(() => Buffer.from('', 'latin1'));
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assert.doesNotThrow(() => Buffer.alloc(0));
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assert.doesNotThrow(() => Buffer.allocUnsafe(0));
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assert.doesNotThrow(() => new Buffer(''));
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assert.doesNotThrow(() => new Buffer('', 'ascii'));
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assert.doesNotThrow(() => new Buffer('', 'latin1'));
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assert.doesNotThrow(() => new Buffer('', 'binary'));
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assert.doesNotThrow(() => Buffer(0));
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// try to write a 0-length string beyond the end of b
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assert.throws(() => b.write('', 2048), RangeError);
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// throw when writing to negative offset
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assert.throws(() => b.write('a', -1), RangeError);
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// throw when writing past bounds from the pool
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assert.throws(() => b.write('a', 2048), RangeError);
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// throw when writing to negative offset
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assert.throws(() => b.write('a', -1), RangeError);
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// try to copy 0 bytes worth of data into an empty buffer
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b.copy(Buffer.alloc(0), 0, 0, 0);
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// try to copy 0 bytes past the end of the target buffer
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b.copy(Buffer.alloc(0), 1, 1, 1);
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b.copy(Buffer.alloc(1), 1, 1, 1);
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// try to copy 0 bytes from past the end of the source buffer
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b.copy(Buffer.alloc(1), 0, 2048, 2048);
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// testing for smart defaults and ability to pass string values as offset
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{
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const writeTest = Buffer.from('abcdes');
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writeTest.write('n', 'ascii');
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writeTest.write('o', '1', 'ascii');
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writeTest.write('d', '2', 'ascii');
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writeTest.write('e', 3, 'ascii');
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writeTest.write('j', 4, 'ascii');
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assert.strictEqual(writeTest.toString(), 'nodejs');
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}
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// Offset points to the end of the buffer
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// (see https://github.com/nodejs/node/issues/8127).
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assert.doesNotThrow(() => Buffer.alloc(1).write('', 1, 0));
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// ASCII slice test
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{
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const asciiString = 'hello world';
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for (let i = 0; i < asciiString.length; i++) {
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b[i] = asciiString.charCodeAt(i);
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}
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const asciiSlice = b.toString('ascii', 0, asciiString.length);
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assert.strictEqual(asciiString, asciiSlice);
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}
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{
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const asciiString = 'hello world';
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const offset = 100;
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assert.strictEqual(asciiString.length, b.write(asciiString, offset, 'ascii'));
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const asciiSlice = b.toString('ascii', offset, offset + asciiString.length);
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assert.strictEqual(asciiString, asciiSlice);
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}
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{
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const asciiString = 'hello world';
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const offset = 100;
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const sliceA = b.slice(offset, offset + asciiString.length);
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const sliceB = b.slice(offset, offset + asciiString.length);
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for (let i = 0; i < asciiString.length; i++) {
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assert.strictEqual(sliceA[i], sliceB[i]);
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}
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}
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// UTF-8 slice test
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{
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const utf8String = '¡hέlló wôrld!';
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const offset = 100;
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b.write(utf8String, 0, Buffer.byteLength(utf8String), 'utf8');
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let utf8Slice = b.toString('utf8', 0, Buffer.byteLength(utf8String));
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assert.strictEqual(utf8String, utf8Slice);
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assert.strictEqual(Buffer.byteLength(utf8String),
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b.write(utf8String, offset, 'utf8'));
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utf8Slice = b.toString('utf8', offset,
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offset + Buffer.byteLength(utf8String));
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assert.strictEqual(utf8String, utf8Slice);
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const sliceA = b.slice(offset, offset + Buffer.byteLength(utf8String));
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const sliceB = b.slice(offset, offset + Buffer.byteLength(utf8String));
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for (let i = 0; i < Buffer.byteLength(utf8String); i++) {
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assert.strictEqual(sliceA[i], sliceB[i]);
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}
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}
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{
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const slice = b.slice(100, 150);
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assert.strictEqual(50, slice.length);
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for (let i = 0; i < 50; i++) {
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assert.strictEqual(b[100 + i], slice[i]);
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}
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}
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{
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// make sure only top level parent propagates from allocPool
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const b = Buffer.allocUnsafe(5);
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const c = b.slice(0, 4);
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const d = c.slice(0, 2);
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assert.strictEqual(b.parent, c.parent);
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assert.strictEqual(b.parent, d.parent);
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}
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{
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// also from a non-pooled instance
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const b = Buffer.allocUnsafeSlow(5);
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const c = b.slice(0, 4);
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const d = c.slice(0, 2);
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assert.strictEqual(c.parent, d.parent);
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}
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{
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// Bug regression test
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const testValue = '\u00F6\u65E5\u672C\u8A9E'; // ö日本語
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const buffer = Buffer.allocUnsafe(32);
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const size = buffer.write(testValue, 0, 'utf8');
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const slice = buffer.toString('utf8', 0, size);
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assert.strictEqual(slice, testValue);
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}
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{
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// Test triple slice
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const a = Buffer.allocUnsafe(8);
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for (let i = 0; i < 8; i++) a[i] = i;
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const b = a.slice(4, 8);
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assert.strictEqual(4, b[0]);
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assert.strictEqual(5, b[1]);
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assert.strictEqual(6, b[2]);
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assert.strictEqual(7, b[3]);
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const c = b.slice(2, 4);
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assert.strictEqual(6, c[0]);
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assert.strictEqual(7, c[1]);
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}
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{
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const d = Buffer.from([23, 42, 255]);
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assert.strictEqual(d.length, 3);
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assert.strictEqual(d[0], 23);
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assert.strictEqual(d[1], 42);
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assert.strictEqual(d[2], 255);
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assert.deepStrictEqual(d, Buffer.from(d));
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}
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{
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// Test for proper UTF-8 Encoding
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const e = Buffer.from('über');
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assert.deepStrictEqual(e, Buffer.from([195, 188, 98, 101, 114]));
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}
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{
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// Test for proper ascii Encoding, length should be 4
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const f = Buffer.from('über', 'ascii');
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assert.deepStrictEqual(f, Buffer.from([252, 98, 101, 114]));
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}
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['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach((encoding) => {
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{
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// Test for proper UTF16LE encoding, length should be 8
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const f = Buffer.from('über', encoding);
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assert.deepStrictEqual(f, Buffer.from([252, 0, 98, 0, 101, 0, 114, 0]));
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}
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{
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// Length should be 12
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const f = Buffer.from('привет', encoding);
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assert.deepStrictEqual(
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f, Buffer.from([63, 4, 64, 4, 56, 4, 50, 4, 53, 4, 66, 4])
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);
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assert.strictEqual(f.toString(encoding), 'привет');
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}
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{
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const f = Buffer.from([0, 0, 0, 0, 0]);
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assert.strictEqual(f.length, 5);
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const size = f.write('あいうえお', encoding);
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assert.strictEqual(size, 4);
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assert.deepStrictEqual(f, Buffer.from([0x42, 0x30, 0x44, 0x30, 0x00]));
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}
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});
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{
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const f = Buffer.from('\uD83D\uDC4D', 'utf-16le'); // THUMBS UP SIGN (U+1F44D)
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assert.strictEqual(f.length, 4);
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assert.deepStrictEqual(f, Buffer.from('3DD84DDC', 'hex'));
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}
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// Test construction from arrayish object
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{
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const arrayIsh = { 0: 0, 1: 1, 2: 2, 3: 3, length: 4 };
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let g = Buffer.from(arrayIsh);
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assert.deepStrictEqual(g, Buffer.from([0, 1, 2, 3]));
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const strArrayIsh = { 0: '0', 1: '1', 2: '2', 3: '3', length: 4 };
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g = Buffer.from(strArrayIsh);
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assert.deepStrictEqual(g, Buffer.from([0, 1, 2, 3]));
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}
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//
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// Test toString('base64')
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//
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assert.strictEqual('TWFu', (Buffer.from('Man')).toString('base64'));
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{
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// test that regular and URL-safe base64 both work
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const expected = [0xff, 0xff, 0xbe, 0xff, 0xef, 0xbf, 0xfb, 0xef, 0xff];
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assert.deepStrictEqual(Buffer.from('//++/++/++//', 'base64'),
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Buffer.from(expected));
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assert.deepStrictEqual(Buffer.from('__--_--_--__', 'base64'),
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Buffer.from(expected));
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}
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{
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// big example
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const quote = 'Man is distinguished, not only by his reason, but by this ' +
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'singular passion from other animals, which is a lust ' +
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'of the mind, that by a perseverance of delight in the ' +
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'continued and indefatigable generation of knowledge, ' +
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'exceeds the short vehemence of any carnal pleasure.';
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const expected = 'TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb' +
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'24sIGJ1dCBieSB0aGlzIHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlci' +
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'BhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2YgdGhlIG1pbmQsIHRoYXQ' +
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'gYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu' +
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'dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZ' +
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'GdlLCBleGNlZWRzIHRoZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm' +
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'5hbCBwbGVhc3VyZS4=';
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assert.strictEqual(expected, (Buffer.from(quote)).toString('base64'));
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let b = Buffer.allocUnsafe(1024);
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let bytesWritten = b.write(expected, 0, 'base64');
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assert.strictEqual(quote.length, bytesWritten);
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assert.strictEqual(quote, b.toString('ascii', 0, quote.length));
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// check that the base64 decoder ignores whitespace
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const expectedWhite = expected.slice(0, 60) + ' \n' +
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expected.slice(60, 120) + ' \n' +
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expected.slice(120, 180) + ' \n' +
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expected.slice(180, 240) + ' \n' +
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expected.slice(240, 300) + '\n' +
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expected.slice(300, 360) + '\n';
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b = Buffer.allocUnsafe(1024);
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bytesWritten = b.write(expectedWhite, 0, 'base64');
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assert.strictEqual(quote.length, bytesWritten);
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assert.strictEqual(quote, b.toString('ascii', 0, quote.length));
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// check that the base64 decoder on the constructor works
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// even in the presence of whitespace.
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b = Buffer.from(expectedWhite, 'base64');
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assert.strictEqual(quote.length, b.length);
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assert.strictEqual(quote, b.toString('ascii', 0, quote.length));
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// check that the base64 decoder ignores illegal chars
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const expectedIllegal = expected.slice(0, 60) + ' \x80' +
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expected.slice(60, 120) + ' \xff' +
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expected.slice(120, 180) + ' \x00' +
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expected.slice(180, 240) + ' \x98' +
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expected.slice(240, 300) + '\x03' +
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expected.slice(300, 360);
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b = Buffer.from(expectedIllegal, 'base64');
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assert.strictEqual(quote.length, b.length);
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assert.strictEqual(quote, b.toString('ascii', 0, quote.length));
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}
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assert.strictEqual(Buffer.from('', 'base64').toString(), '');
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assert.strictEqual(Buffer.from('K', 'base64').toString(), '');
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// multiple-of-4 with padding
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assert.strictEqual(Buffer.from('Kg==', 'base64').toString(), '*');
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assert.strictEqual(Buffer.from('Kio=', 'base64').toString(), '*'.repeat(2));
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assert.strictEqual(Buffer.from('Kioq', 'base64').toString(), '*'.repeat(3));
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assert.strictEqual(Buffer.from('KioqKg==', 'base64').toString(), '*'.repeat(4));
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assert.strictEqual(Buffer.from('KioqKio=', 'base64').toString(), '*'.repeat(5));
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assert.strictEqual(Buffer.from('KioqKioq', 'base64').toString(), '*'.repeat(6));
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assert.strictEqual(Buffer.from('KioqKioqKg==', 'base64').toString(),
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'*'.repeat(7));
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assert.strictEqual(Buffer.from('KioqKioqKio=', 'base64').toString(),
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'*'.repeat(8));
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assert.strictEqual(Buffer.from('KioqKioqKioq', 'base64').toString(),
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'*'.repeat(9));
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assert.strictEqual(Buffer.from('KioqKioqKioqKg==', 'base64').toString(),
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'*'.repeat(10));
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assert.strictEqual(Buffer.from('KioqKioqKioqKio=', 'base64').toString(),
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'*'.repeat(11));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioq', 'base64').toString(),
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'*'.repeat(12));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKg==', 'base64').toString(),
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'*'.repeat(13));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKio=', 'base64').toString(),
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'*'.repeat(14));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKioq', 'base64').toString(),
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'*'.repeat(15));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKioqKg==', 'base64').toString(),
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'*'.repeat(16));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKioqKio=', 'base64').toString(),
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'*'.repeat(17));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKioqKioq', 'base64').toString(),
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'*'.repeat(18));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKioqKioqKg==',
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'base64').toString(),
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'*'.repeat(19));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKioqKioqKio=',
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'base64').toString(),
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'*'.repeat(20));
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// no padding, not a multiple of 4
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assert.strictEqual(Buffer.from('Kg', 'base64').toString(), '*');
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assert.strictEqual(Buffer.from('Kio', 'base64').toString(), '*'.repeat(2));
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assert.strictEqual(Buffer.from('KioqKg', 'base64').toString(), '*'.repeat(4));
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assert.strictEqual(Buffer.from('KioqKio', 'base64').toString(), '*'.repeat(5));
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assert.strictEqual(Buffer.from('KioqKioqKg', 'base64').toString(),
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'*'.repeat(7));
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assert.strictEqual(Buffer.from('KioqKioqKio', 'base64').toString(),
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'*'.repeat(8));
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assert.strictEqual(Buffer.from('KioqKioqKioqKg', 'base64').toString(),
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'*'.repeat(10));
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assert.strictEqual(Buffer.from('KioqKioqKioqKio', 'base64').toString(),
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'*'.repeat(11));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKg', 'base64').toString(),
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'*'.repeat(13));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKio', 'base64').toString(),
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'*'.repeat(14));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKioqKg', 'base64').toString(),
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'*'.repeat(16));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKioqKio', 'base64').toString(),
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'*'.repeat(17));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKioqKioqKg',
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'base64').toString(),
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'*'.repeat(19));
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assert.strictEqual(Buffer.from('KioqKioqKioqKioqKioqKioqKio',
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'base64').toString(),
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'*'.repeat(20));
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// handle padding graciously, multiple-of-4 or not
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assert.strictEqual(
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Buffer.from('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw==', 'base64').length,
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32
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);
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assert.strictEqual(
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Buffer.from('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw=', 'base64').length,
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32
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);
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assert.strictEqual(
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Buffer.from('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw', 'base64').length,
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32
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);
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assert.strictEqual(
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Buffer.from('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg==', 'base64').length,
|
|
31
|
|
);
|
|
assert.strictEqual(
|
|
Buffer.from('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg=', 'base64').length,
|
|
31
|
|
);
|
|
assert.strictEqual(
|
|
Buffer.from('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg', 'base64').length,
|
|
31
|
|
);
|
|
|
|
{
|
|
// This string encodes single '.' character in UTF-16
|
|
const dot = Buffer.from('//4uAA==', 'base64');
|
|
assert.strictEqual(dot[0], 0xff);
|
|
assert.strictEqual(dot[1], 0xfe);
|
|
assert.strictEqual(dot[2], 0x2e);
|
|
assert.strictEqual(dot[3], 0x00);
|
|
assert.strictEqual(dot.toString('base64'), '//4uAA==');
|
|
}
|
|
|
|
{
|
|
// Writing base64 at a position > 0 should not mangle the result.
|
|
//
|
|
// https://github.com/joyent/node/issues/402
|
|
const segments = ['TWFkbmVzcz8h', 'IFRoaXM=', 'IGlz', 'IG5vZGUuanMh'];
|
|
const b = Buffer.allocUnsafe(64);
|
|
let pos = 0;
|
|
|
|
for (let i = 0; i < segments.length; ++i) {
|
|
pos += b.write(segments[i], pos, 'base64');
|
|
}
|
|
assert.strictEqual(b.toString('latin1', 0, pos),
|
|
'Madness?! This is node.js!');
|
|
}
|
|
|
|
// Regression test for https://github.com/nodejs/node/issues/3496.
|
|
assert.strictEqual(Buffer.from('=bad'.repeat(1e4), 'base64').length, 0);
|
|
|
|
// Regression test for https://github.com/nodejs/node/issues/11987.
|
|
assert.deepStrictEqual(Buffer.from('w0 ', 'base64'),
|
|
Buffer.from('w0', 'base64'));
|
|
|
|
// Regression test for https://github.com/nodejs/node/issues/13657.
|
|
assert.deepStrictEqual(Buffer.from(' YWJvcnVtLg', 'base64'),
|
|
Buffer.from('YWJvcnVtLg', 'base64'));
|
|
|
|
{
|
|
// Creating buffers larger than pool size.
|
|
const l = Buffer.poolSize + 5;
|
|
const s = 'h'.repeat(l);
|
|
const b = Buffer.from(s);
|
|
|
|
for (let i = 0; i < l; i++) {
|
|
assert.strictEqual('h'.charCodeAt(0), b[i]);
|
|
}
|
|
|
|
const sb = b.toString();
|
|
assert.strictEqual(sb.length, s.length);
|
|
assert.strictEqual(sb, s);
|
|
}
|
|
|
|
{
|
|
// test hex toString
|
|
const hexb = Buffer.allocUnsafe(256);
|
|
for (let i = 0; i < 256; i++) {
|
|
hexb[i] = i;
|
|
}
|
|
const hexStr = hexb.toString('hex');
|
|
assert.strictEqual(hexStr,
|
|
'000102030405060708090a0b0c0d0e0f' +
|
|
'101112131415161718191a1b1c1d1e1f' +
|
|
'202122232425262728292a2b2c2d2e2f' +
|
|
'303132333435363738393a3b3c3d3e3f' +
|
|
'404142434445464748494a4b4c4d4e4f' +
|
|
'505152535455565758595a5b5c5d5e5f' +
|
|
'606162636465666768696a6b6c6d6e6f' +
|
|
'707172737475767778797a7b7c7d7e7f' +
|
|
'808182838485868788898a8b8c8d8e8f' +
|
|
'909192939495969798999a9b9c9d9e9f' +
|
|
'a0a1a2a3a4a5a6a7a8a9aaabacadaeaf' +
|
|
'b0b1b2b3b4b5b6b7b8b9babbbcbdbebf' +
|
|
'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf' +
|
|
'd0d1d2d3d4d5d6d7d8d9dadbdcdddedf' +
|
|
'e0e1e2e3e4e5e6e7e8e9eaebecedeeef' +
|
|
'f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff');
|
|
|
|
const hexb2 = Buffer.from(hexStr, 'hex');
|
|
for (let i = 0; i < 256; i++) {
|
|
assert.strictEqual(hexb2[i], hexb[i]);
|
|
}
|
|
}
|
|
|
|
// Test single hex character is discarded.
|
|
assert.strictEqual(Buffer.from('A', 'hex').length, 0);
|
|
|
|
// Test that if a trailing character is discarded, rest of string is processed.
|
|
assert.deepStrictEqual(Buffer.from('Abx', 'hex'), Buffer.from('Ab', 'hex'));
|
|
|
|
// Test single base64 char encodes as 0.
|
|
assert.strictEqual(Buffer.from('A', 'base64').length, 0);
|
|
|
|
|
|
{
|
|
// test an invalid slice end.
|
|
const b = Buffer.from([1, 2, 3, 4, 5]);
|
|
const b2 = b.toString('hex', 1, 10000);
|
|
const b3 = b.toString('hex', 1, 5);
|
|
const b4 = b.toString('hex', 1);
|
|
assert.strictEqual(b2, b3);
|
|
assert.strictEqual(b2, b4);
|
|
}
|
|
|
|
function buildBuffer(data) {
|
|
if (Array.isArray(data)) {
|
|
const buffer = Buffer.allocUnsafe(data.length);
|
|
data.forEach((v, k) => buffer[k] = v);
|
|
return buffer;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
const x = buildBuffer([0x81, 0xa3, 0x66, 0x6f, 0x6f, 0xa3, 0x62, 0x61, 0x72]);
|
|
|
|
assert.strictEqual('<Buffer 81 a3 66 6f 6f a3 62 61 72>', x.inspect());
|
|
|
|
{
|
|
const z = x.slice(4);
|
|
assert.strictEqual(5, z.length);
|
|
assert.strictEqual(0x6f, z[0]);
|
|
assert.strictEqual(0xa3, z[1]);
|
|
assert.strictEqual(0x62, z[2]);
|
|
assert.strictEqual(0x61, z[3]);
|
|
assert.strictEqual(0x72, z[4]);
|
|
}
|
|
|
|
{
|
|
const z = x.slice(0);
|
|
assert.strictEqual(z.length, x.length);
|
|
}
|
|
|
|
{
|
|
const z = x.slice(0, 4);
|
|
assert.strictEqual(4, z.length);
|
|
assert.strictEqual(0x81, z[0]);
|
|
assert.strictEqual(0xa3, z[1]);
|
|
}
|
|
|
|
{
|
|
const z = x.slice(0, 9);
|
|
assert.strictEqual(9, z.length);
|
|
}
|
|
|
|
{
|
|
const z = x.slice(1, 4);
|
|
assert.strictEqual(3, z.length);
|
|
assert.strictEqual(0xa3, z[0]);
|
|
}
|
|
|
|
{
|
|
const z = x.slice(2, 4);
|
|
assert.strictEqual(2, z.length);
|
|
assert.strictEqual(0x66, z[0]);
|
|
assert.strictEqual(0x6f, z[1]);
|
|
}
|
|
|
|
['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach((encoding) => {
|
|
const b = Buffer.allocUnsafe(10);
|
|
b.write('あいうえお', encoding);
|
|
assert.strictEqual(b.toString(encoding), 'あいうえお');
|
|
});
|
|
|
|
['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach((encoding) => {
|
|
const b = Buffer.allocUnsafe(11);
|
|
b.write('あいうえお', 1, encoding);
|
|
assert.strictEqual(b.toString(encoding, 1), 'あいうえお');
|
|
});
|
|
|
|
{
|
|
// latin1 encoding should write only one byte per character.
|
|
const b = Buffer.from([0xde, 0xad, 0xbe, 0xef]);
|
|
let s = String.fromCharCode(0xffff);
|
|
b.write(s, 0, 'latin1');
|
|
assert.strictEqual(0xff, b[0]);
|
|
assert.strictEqual(0xad, b[1]);
|
|
assert.strictEqual(0xbe, b[2]);
|
|
assert.strictEqual(0xef, b[3]);
|
|
s = String.fromCharCode(0xaaee);
|
|
b.write(s, 0, 'latin1');
|
|
assert.strictEqual(0xee, b[0]);
|
|
assert.strictEqual(0xad, b[1]);
|
|
assert.strictEqual(0xbe, b[2]);
|
|
assert.strictEqual(0xef, b[3]);
|
|
}
|
|
|
|
{
|
|
// Binary encoding should write only one byte per character.
|
|
const b = Buffer.from([0xde, 0xad, 0xbe, 0xef]);
|
|
let s = String.fromCharCode(0xffff);
|
|
b.write(s, 0, 'latin1');
|
|
assert.strictEqual(0xff, b[0]);
|
|
assert.strictEqual(0xad, b[1]);
|
|
assert.strictEqual(0xbe, b[2]);
|
|
assert.strictEqual(0xef, b[3]);
|
|
s = String.fromCharCode(0xaaee);
|
|
b.write(s, 0, 'latin1');
|
|
assert.strictEqual(0xee, b[0]);
|
|
assert.strictEqual(0xad, b[1]);
|
|
assert.strictEqual(0xbe, b[2]);
|
|
assert.strictEqual(0xef, b[3]);
|
|
}
|
|
|
|
{
|
|
// #1210 Test UTF-8 string includes null character
|
|
let buf = Buffer.from('\0');
|
|
assert.strictEqual(buf.length, 1);
|
|
buf = Buffer.from('\0\0');
|
|
assert.strictEqual(buf.length, 2);
|
|
}
|
|
|
|
{
|
|
const buf = Buffer.allocUnsafe(2);
|
|
assert.strictEqual(buf.write(''), 0); //0bytes
|
|
assert.strictEqual(buf.write('\0'), 1); // 1byte (v8 adds null terminator)
|
|
assert.strictEqual(buf.write('a\0'), 2); // 1byte * 2
|
|
assert.strictEqual(buf.write('あ'), 0); // 3bytes
|
|
assert.strictEqual(buf.write('\0あ'), 1); // 1byte + 3bytes
|
|
assert.strictEqual(buf.write('\0\0あ'), 2); // 1byte * 2 + 3bytes
|
|
}
|
|
|
|
{
|
|
const buf = Buffer.allocUnsafe(10);
|
|
assert.strictEqual(buf.write('あいう'), 9); // 3bytes * 3 (v8 adds null term.)
|
|
assert.strictEqual(buf.write('あいう\0'), 10); // 3bytes * 3 + 1byte
|
|
}
|
|
|
|
{
|
|
// #243 Test write() with maxLength
|
|
const buf = Buffer.allocUnsafe(4);
|
|
buf.fill(0xFF);
|
|
assert.strictEqual(buf.write('abcd', 1, 2, 'utf8'), 2);
|
|
assert.strictEqual(buf[0], 0xFF);
|
|
assert.strictEqual(buf[1], 0x61);
|
|
assert.strictEqual(buf[2], 0x62);
|
|
assert.strictEqual(buf[3], 0xFF);
|
|
|
|
buf.fill(0xFF);
|
|
assert.strictEqual(buf.write('abcd', 1, 4), 3);
|
|
assert.strictEqual(buf[0], 0xFF);
|
|
assert.strictEqual(buf[1], 0x61);
|
|
assert.strictEqual(buf[2], 0x62);
|
|
assert.strictEqual(buf[3], 0x63);
|
|
|
|
buf.fill(0xFF);
|
|
assert.strictEqual(buf.write('abcd', 1, 2, 'utf8'), 2);
|
|
assert.strictEqual(buf[0], 0xFF);
|
|
assert.strictEqual(buf[1], 0x61);
|
|
assert.strictEqual(buf[2], 0x62);
|
|
assert.strictEqual(buf[3], 0xFF);
|
|
|
|
buf.fill(0xFF);
|
|
assert.strictEqual(buf.write('abcdef', 1, 2, 'hex'), 2);
|
|
assert.strictEqual(buf[0], 0xFF);
|
|
assert.strictEqual(buf[1], 0xAB);
|
|
assert.strictEqual(buf[2], 0xCD);
|
|
assert.strictEqual(buf[3], 0xFF);
|
|
|
|
['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach((encoding) => {
|
|
buf.fill(0xFF);
|
|
assert.strictEqual(buf.write('abcd', 0, 2, encoding), 2);
|
|
assert.strictEqual(buf[0], 0x61);
|
|
assert.strictEqual(buf[1], 0x00);
|
|
assert.strictEqual(buf[2], 0xFF);
|
|
assert.strictEqual(buf[3], 0xFF);
|
|
});
|
|
}
|
|
|
|
{
|
|
// test offset returns are correct
|
|
const b = Buffer.allocUnsafe(16);
|
|
assert.strictEqual(4, b.writeUInt32LE(0, 0));
|
|
assert.strictEqual(6, b.writeUInt16LE(0, 4));
|
|
assert.strictEqual(7, b.writeUInt8(0, 6));
|
|
assert.strictEqual(8, b.writeInt8(0, 7));
|
|
assert.strictEqual(16, b.writeDoubleLE(0, 8));
|
|
}
|
|
|
|
{
|
|
// test unmatched surrogates not producing invalid utf8 output
|
|
// ef bf bd = utf-8 representation of unicode replacement character
|
|
// see https://codereview.chromium.org/121173009/
|
|
const buf = Buffer.from('ab\ud800cd', 'utf8');
|
|
assert.strictEqual(buf[0], 0x61);
|
|
assert.strictEqual(buf[1], 0x62);
|
|
assert.strictEqual(buf[2], 0xef);
|
|
assert.strictEqual(buf[3], 0xbf);
|
|
assert.strictEqual(buf[4], 0xbd);
|
|
assert.strictEqual(buf[5], 0x63);
|
|
assert.strictEqual(buf[6], 0x64);
|
|
}
|
|
|
|
{
|
|
// test for buffer overrun
|
|
const buf = Buffer.from([0, 0, 0, 0, 0]); // length: 5
|
|
const sub = buf.slice(0, 4); // length: 4
|
|
assert.strictEqual(sub.write('12345', 'latin1'), 4);
|
|
assert.strictEqual(buf[4], 0);
|
|
assert.strictEqual(sub.write('12345', 'binary'), 4);
|
|
assert.strictEqual(buf[4], 0);
|
|
}
|
|
|
|
{
|
|
// test alloc with fill option
|
|
const buf = Buffer.alloc(5, '800A', 'hex');
|
|
assert.strictEqual(buf[0], 128);
|
|
assert.strictEqual(buf[1], 10);
|
|
assert.strictEqual(buf[2], 128);
|
|
assert.strictEqual(buf[3], 10);
|
|
assert.strictEqual(buf[4], 128);
|
|
}
|
|
|
|
|
|
// Check for fractional length args, junk length args, etc.
|
|
// https://github.com/joyent/node/issues/1758
|
|
|
|
// Call .fill() first, stops valgrind warning about uninitialized memory reads.
|
|
Buffer.allocUnsafe(3.3).fill().toString();
|
|
// throws bad argument error in commit 43cb4ec
|
|
Buffer.alloc(3.3).fill().toString();
|
|
assert.strictEqual(Buffer.allocUnsafe(NaN).length, 0);
|
|
assert.strictEqual(Buffer.allocUnsafe(3.3).length, 3);
|
|
assert.strictEqual(Buffer.from({ length: 3.3 }).length, 3);
|
|
assert.strictEqual(Buffer.from({ length: 'BAM' }).length, 0);
|
|
|
|
// Make sure that strings are not coerced to numbers.
|
|
assert.strictEqual(Buffer.from('99').length, 2);
|
|
assert.strictEqual(Buffer.from('13.37').length, 5);
|
|
|
|
// Ensure that the length argument is respected.
|
|
['ascii', 'utf8', 'hex', 'base64', 'latin1', 'binary'].forEach((enc) => {
|
|
assert.strictEqual(Buffer.allocUnsafe(1).write('aaaaaa', 0, 1, enc), 1);
|
|
});
|
|
|
|
{
|
|
// Regression test, guard against buffer overrun in the base64 decoder.
|
|
const a = Buffer.allocUnsafe(3);
|
|
const b = Buffer.from('xxx');
|
|
a.write('aaaaaaaa', 'base64');
|
|
assert.strictEqual(b.toString(), 'xxx');
|
|
}
|
|
|
|
// issue GH-3416
|
|
Buffer.from(Buffer.allocUnsafe(0), 0, 0);
|
|
|
|
// issue GH-5587
|
|
assert.throws(() => Buffer.alloc(8).writeFloatLE(0, 5), RangeError);
|
|
assert.throws(() => Buffer.alloc(16).writeDoubleLE(0, 9), RangeError);
|
|
|
|
// attempt to overflow buffers, similar to previous bug in array buffers
|
|
assert.throws(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, 0xffffffff),
|
|
RangeError);
|
|
assert.throws(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, 0xffffffff),
|
|
RangeError);
|
|
|
|
|
|
// ensure negative values can't get past offset
|
|
assert.throws(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, -1), RangeError);
|
|
assert.throws(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, -1), RangeError);
|
|
|
|
|
|
// test for common write(U)IntLE/BE
|
|
{
|
|
let buf = Buffer.allocUnsafe(3);
|
|
buf.writeUIntLE(0x123456, 0, 3);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x56, 0x34, 0x12]);
|
|
assert.strictEqual(buf.readUIntLE(0, 3), 0x123456);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeUIntBE(0x123456, 0, 3);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56]);
|
|
assert.strictEqual(buf.readUIntBE(0, 3), 0x123456);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntLE(0x123456, 0, 3);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x56, 0x34, 0x12]);
|
|
assert.strictEqual(buf.readIntLE(0, 3), 0x123456);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntBE(0x123456, 0, 3);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56]);
|
|
assert.strictEqual(buf.readIntBE(0, 3), 0x123456);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntLE(-0x123456, 0, 3);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0xaa, 0xcb, 0xed]);
|
|
assert.strictEqual(buf.readIntLE(0, 3), -0x123456);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntBE(-0x123456, 0, 3);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcb, 0xaa]);
|
|
assert.strictEqual(buf.readIntBE(0, 3), -0x123456);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntLE(-0x123400, 0, 3);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x00, 0xcc, 0xed]);
|
|
assert.strictEqual(buf.readIntLE(0, 3), -0x123400);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntBE(-0x123400, 0, 3);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcc, 0x00]);
|
|
assert.strictEqual(buf.readIntBE(0, 3), -0x123400);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntLE(-0x120000, 0, 3);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x00, 0x00, 0xee]);
|
|
assert.strictEqual(buf.readIntLE(0, 3), -0x120000);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntBE(-0x120000, 0, 3);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0xee, 0x00, 0x00]);
|
|
assert.strictEqual(buf.readIntBE(0, 3), -0x120000);
|
|
|
|
buf = Buffer.allocUnsafe(5);
|
|
buf.writeUIntLE(0x1234567890, 0, 5);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x90, 0x78, 0x56, 0x34, 0x12]);
|
|
assert.strictEqual(buf.readUIntLE(0, 5), 0x1234567890);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeUIntBE(0x1234567890, 0, 5);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56, 0x78, 0x90]);
|
|
assert.strictEqual(buf.readUIntBE(0, 5), 0x1234567890);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntLE(0x1234567890, 0, 5);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x90, 0x78, 0x56, 0x34, 0x12]);
|
|
assert.strictEqual(buf.readIntLE(0, 5), 0x1234567890);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntBE(0x1234567890, 0, 5);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56, 0x78, 0x90]);
|
|
assert.strictEqual(buf.readIntBE(0, 5), 0x1234567890);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntLE(-0x1234567890, 0, 5);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x70, 0x87, 0xa9, 0xcb, 0xed]);
|
|
assert.strictEqual(buf.readIntLE(0, 5), -0x1234567890);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntBE(-0x1234567890, 0, 5);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcb, 0xa9, 0x87, 0x70]);
|
|
assert.strictEqual(buf.readIntBE(0, 5), -0x1234567890);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntLE(-0x0012000000, 0, 5);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0x00, 0x00, 0x00, 0xee, 0xff]);
|
|
assert.strictEqual(buf.readIntLE(0, 5), -0x0012000000);
|
|
|
|
buf.fill(0xFF);
|
|
buf.writeIntBE(-0x0012000000, 0, 5);
|
|
assert.deepStrictEqual(buf.toJSON().data, [0xff, 0xee, 0x00, 0x00, 0x00]);
|
|
assert.strictEqual(buf.readIntBE(0, 5), -0x0012000000);
|
|
}
|
|
|
|
// Regression test for #5482: should throw but not assert in C++ land.
|
|
assert.throws(() => Buffer.from('', 'buffer'),
|
|
common.expectsError({
|
|
code: 'ERR_UNKNOWN_ENCODING',
|
|
type: TypeError,
|
|
message: 'Unknown encoding: buffer'
|
|
}));
|
|
|
|
// Regression test for #6111. Constructing a buffer from another buffer
|
|
// should a) work, and b) not corrupt the source buffer.
|
|
{
|
|
const a = [...Array(128).keys()]; // [0, 1, 2, 3, ... 126, 127]
|
|
const b = Buffer.from(a);
|
|
const c = Buffer.from(b);
|
|
assert.strictEqual(b.length, a.length);
|
|
assert.strictEqual(c.length, a.length);
|
|
for (let i = 0, k = a.length; i < k; ++i) {
|
|
assert.strictEqual(a[i], i);
|
|
assert.strictEqual(b[i], i);
|
|
assert.strictEqual(c[i], i);
|
|
}
|
|
}
|
|
|
|
if (common.hasCrypto) {
|
|
// Test truncation after decode
|
|
const crypto = require('crypto');
|
|
|
|
const b1 = Buffer.from('YW55=======', 'base64');
|
|
const b2 = Buffer.from('YW55', 'base64');
|
|
|
|
assert.strictEqual(
|
|
crypto.createHash('sha1').update(b1).digest('hex'),
|
|
crypto.createHash('sha1').update(b2).digest('hex')
|
|
);
|
|
} else {
|
|
common.printSkipMessage('missing crypto');
|
|
}
|
|
|
|
const ps = Buffer.poolSize;
|
|
Buffer.poolSize = 0;
|
|
assert(Buffer.allocUnsafe(1).parent instanceof ArrayBuffer);
|
|
Buffer.poolSize = ps;
|
|
|
|
// Test Buffer.copy() segfault
|
|
assert.throws(() => Buffer.allocUnsafe(10).copy(),
|
|
/TypeError: argument should be a Buffer/);
|
|
|
|
const regErrorMsg =
|
|
new RegExp('The first argument must be one of type string, buffer, ' +
|
|
'arrayBuffer, array, or array-like object\\.');
|
|
|
|
assert.throws(() => Buffer.from(), regErrorMsg);
|
|
assert.throws(() => Buffer.from(null), regErrorMsg);
|
|
|
|
// Test prototype getters don't throw
|
|
assert.strictEqual(Buffer.prototype.parent, undefined);
|
|
assert.strictEqual(Buffer.prototype.offset, undefined);
|
|
assert.strictEqual(SlowBuffer.prototype.parent, undefined);
|
|
assert.strictEqual(SlowBuffer.prototype.offset, undefined);
|
|
|
|
|
|
{
|
|
// Test that large negative Buffer length inputs don't affect the pool offset.
|
|
// Use the fromArrayLike() variant here because it's more lenient
|
|
// about its input and passes the length directly to allocate().
|
|
assert.deepStrictEqual(Buffer.from({ length: -Buffer.poolSize }),
|
|
Buffer.from(''));
|
|
assert.deepStrictEqual(Buffer.from({ length: -100 }),
|
|
Buffer.from(''));
|
|
|
|
// Check pool offset after that by trying to write string into the pool.
|
|
assert.doesNotThrow(() => Buffer.from('abc'));
|
|
}
|
|
|
|
|
|
// Test that ParseArrayIndex handles full uint32
|
|
{
|
|
const errMsg = common.expectsError({
|
|
code: 'ERR_BUFFER_OUT_OF_BOUNDS',
|
|
type: RangeError,
|
|
message: '"offset" is outside of buffer bounds'
|
|
});
|
|
assert.throws(() => Buffer.from(new ArrayBuffer(0), -1 >>> 0), errMsg);
|
|
}
|
|
|
|
// ParseArrayIndex() should reject values that don't fit in a 32 bits size_t.
|
|
assert.throws(() => {
|
|
const a = Buffer.alloc(1);
|
|
const b = Buffer.alloc(1);
|
|
a.copy(b, 0, 0x100000000, 0x100000001);
|
|
}, common.expectsError(
|
|
{ code: undefined, type: RangeError, message: 'Index out of range' }));
|
|
|
|
// Unpooled buffer (replaces SlowBuffer)
|
|
{
|
|
const ubuf = Buffer.allocUnsafeSlow(10);
|
|
assert(ubuf);
|
|
assert(ubuf.buffer);
|
|
assert.strictEqual(ubuf.buffer.byteLength, 10);
|
|
}
|
|
|
|
// Regression test
|
|
assert.doesNotThrow(() => Buffer.from(new ArrayBuffer()));
|
|
|
|
// Test that ArrayBuffer from a different context is detected correctly
|
|
const arrayBuf = vm.runInNewContext('new ArrayBuffer()');
|
|
assert.doesNotThrow(() => Buffer.from(arrayBuf));
|
|
assert.doesNotThrow(() => Buffer.from({ buffer: arrayBuf }));
|
|
|
|
assert.throws(() => Buffer.alloc({ valueOf: () => 1 }),
|
|
/"size" argument must be of type number/);
|
|
assert.throws(() => Buffer.alloc({ valueOf: () => -1 }),
|
|
/"size" argument must be of type number/);
|
|
|
|
assert.strictEqual(Buffer.prototype.toLocaleString, Buffer.prototype.toString);
|
|
{
|
|
const buf = Buffer.from('test');
|
|
assert.strictEqual(buf.toLocaleString(), buf.toString());
|
|
}
|