| 'use strict'; |
| var Buffer = require('../../').Buffer; |
| |
| var common = { skip: function () {} }; |
| var assert = require('assert'); |
| |
| var Buffer = require('../../').Buffer; |
| var SlowBuffer = require('../../').SlowBuffer; |
| |
| // counter to ensure unique value is always copied |
| var cntr = 0; |
| |
| var b = Buffer(1024); // safe constructor |
| |
| // console.log('b.length == %d', b.length); |
| assert.strictEqual(1024, b.length); |
| |
| b[0] = -1; |
| assert.strictEqual(b[0], 255); |
| |
| for (var i = 0; i < 1024; i++) { |
| b[i] = i % 256; |
| } |
| |
| for (var i = 0; i < 1024; i++) { |
| assert.strictEqual(i % 256, b[i]); |
| } |
| |
| var c = Buffer(512); |
| // console.log('c.length == %d', c.length); |
| assert.strictEqual(512, c.length); |
| |
| var d = new Buffer([]); |
| assert.strictEqual(0, d.length); |
| |
| var ui32 = new Uint32Array(4).fill(42); |
| var e = Buffer(ui32); |
| for (var [key, value] of e.entries()) { |
| assert.deepStrictEqual(value, ui32[key]); |
| } |
| |
| // First check Buffer#fill() works as expected. |
| |
| assert.throws(function() { |
| Buffer(8).fill('a', -1); |
| }); |
| |
| assert.throws(function() { |
| Buffer(8).fill('a', 0, 9); |
| }); |
| |
| // Make sure this doesn't hang indefinitely. |
| Buffer(8).fill(''); |
| |
| { |
| var buf = new Buffer(64); |
| buf.fill(10); |
| for (var i = 0; i < buf.length; i++) |
| assert.equal(buf[i], 10); |
| |
| buf.fill(11, 0, buf.length >> 1); |
| for (var i = 0; i < buf.length >> 1; i++) |
| assert.equal(buf[i], 11); |
| for (var i = (buf.length >> 1) + 1; i < buf.length; i++) |
| assert.equal(buf[i], 10); |
| |
| buf.fill('h'); |
| for (var i = 0; i < buf.length; i++) |
| assert.equal('h'.charCodeAt(0), buf[i]); |
| |
| buf.fill(0); |
| for (var i = 0; i < buf.length; i++) |
| assert.equal(0, buf[i]); |
| |
| buf.fill(null); |
| for (var i = 0; i < buf.length; i++) |
| assert.equal(0, buf[i]); |
| |
| buf.fill(1, 16, 32); |
| for (var i = 0; i < 16; i++) |
| assert.equal(0, buf[i]); |
| for (var i = 16; i < 32; i++) |
| assert.equal(1, buf[i]); |
| for (var i = 32; i < buf.length; i++) |
| assert.equal(0, buf[i]); |
| } |
| |
| { |
| var buf = new Buffer(10); |
| buf.fill('abc'); |
| assert.equal(buf.toString(), 'abcabcabca'); |
| buf.fill('է'); |
| assert.equal(buf.toString(), 'էէէէէ'); |
| } |
| |
| { |
| // copy 512 bytes, from 0 to 512. |
| b.fill(++cntr); |
| c.fill(++cntr); |
| var copied = b.copy(c, 0, 0, 512); |
| // console.log('copied %d bytes from b into c', copied); |
| assert.strictEqual(512, copied); |
| for (var i = 0; i < c.length; i++) { |
| assert.strictEqual(b[i], c[i]); |
| } |
| } |
| |
| { |
| // copy c into b, without specifying sourceEnd |
| b.fill(++cntr); |
| c.fill(++cntr); |
| var copied = c.copy(b, 0, 0); |
| // console.log('copied %d bytes from c into b w/o sourceEnd', copied); |
| assert.strictEqual(c.length, copied); |
| for (var i = 0; i < c.length; i++) { |
| assert.strictEqual(c[i], b[i]); |
| } |
| } |
| |
| { |
| // copy c into b, without specifying sourceStart |
| b.fill(++cntr); |
| c.fill(++cntr); |
| var copied = c.copy(b, 0); |
| // console.log('copied %d bytes from c into b w/o sourceStart', copied); |
| assert.strictEqual(c.length, copied); |
| for (var i = 0; i < c.length; i++) { |
| assert.strictEqual(c[i], b[i]); |
| } |
| } |
| |
| { |
| // copy longer buffer b to shorter c without targetStart |
| b.fill(++cntr); |
| c.fill(++cntr); |
| var copied = b.copy(c); |
| // console.log('copied %d bytes from b into c w/o targetStart', copied); |
| assert.strictEqual(c.length, copied); |
| for (var i = 0; i < c.length; i++) { |
| assert.strictEqual(b[i], c[i]); |
| } |
| } |
| |
| { |
| // copy starting near end of b to c |
| b.fill(++cntr); |
| c.fill(++cntr); |
| var copied = b.copy(c, 0, b.length - Math.floor(c.length / 2)); |
| // console.log('copied %d bytes from end of b into beginning of c', copied); |
| assert.strictEqual(Math.floor(c.length / 2), copied); |
| for (var i = 0; i < Math.floor(c.length / 2); i++) { |
| assert.strictEqual(b[b.length - Math.floor(c.length / 2) + i], c[i]); |
| } |
| for (var i = Math.floor(c.length / 2) + 1; i < c.length; i++) { |
| assert.strictEqual(c[c.length - 1], c[i]); |
| } |
| } |
| |
| { |
| // try to copy 513 bytes, and check we don't overrun c |
| b.fill(++cntr); |
| c.fill(++cntr); |
| var copied = b.copy(c, 0, 0, 513); |
| // console.log('copied %d bytes from b trying to overrun c', copied); |
| assert.strictEqual(c.length, copied); |
| for (var i = 0; i < c.length; i++) { |
| assert.strictEqual(b[i], c[i]); |
| } |
| } |
| |
| { |
| // copy 768 bytes from b into b |
| b.fill(++cntr); |
| b.fill(++cntr, 256); |
| var copied = b.copy(b, 0, 256, 1024); |
| // console.log('copied %d bytes from b into b', copied); |
| assert.strictEqual(768, copied); |
| for (var i = 0; i < b.length; i++) { |
| assert.strictEqual(cntr, b[i]); |
| } |
| } |
| |
| // copy string longer than buffer length (failure will segfault) |
| var bb = Buffer(10); |
| bb.fill('hello crazy world'); |
| |
| |
| // try to copy from before the beginning of b |
| assert.doesNotThrow(() => { b.copy(c, 0, 100, 10); }); |
| |
| // copy throws at negative sourceStart |
| assert.throws(function() { |
| Buffer(5).copy(Buffer(5), 0, -1); |
| }, RangeError); |
| |
| { |
| // check sourceEnd resets to targetEnd if former is greater than the latter |
| b.fill(++cntr); |
| c.fill(++cntr); |
| var copied = b.copy(c, 0, 0, 1025); |
| // console.log('copied %d bytes from b into c', copied); |
| for (var i = 0; i < c.length; i++) { |
| assert.strictEqual(b[i], c[i]); |
| } |
| } |
| |
| // throw with negative sourceEnd |
| // console.log('test copy at negative sourceEnd'); |
| assert.throws(function() { |
| b.copy(c, 0, 0, -1); |
| }, RangeError); |
| |
| // when sourceStart is greater than sourceEnd, zero copied |
| assert.equal(b.copy(c, 0, 100, 10), 0); |
| |
| // when targetStart > targetLength, zero copied |
| assert.equal(b.copy(c, 512, 0, 10), 0); |
| |
| var caught_error; |
| |
| // invalid encoding for Buffer.toString |
| caught_error = null; |
| try { |
| b.toString('invalid'); |
| } catch (err) { |
| caught_error = err; |
| } |
| assert.strictEqual('Unknown encoding: invalid', caught_error.message); |
| |
| // invalid encoding for Buffer.write |
| caught_error = null; |
| try { |
| b.write('test string', 0, 5, 'invalid'); |
| } catch (err) { |
| caught_error = err; |
| } |
| assert.strictEqual('Unknown encoding: invalid', caught_error.message); |
| |
| // try to create 0-length buffers |
| new Buffer(''); |
| new Buffer('', 'ascii'); |
| new Buffer('', 'latin1'); |
| new Buffer('', 'binary'); |
| Buffer(0); |
| |
| // try to write a 0-length string beyond the end of b |
| assert.throws(function() { |
| b.write('', 2048); |
| }, RangeError); |
| |
| // throw when writing to negative offset |
| assert.throws(function() { |
| b.write('a', -1); |
| }, RangeError); |
| |
| // throw when writing past bounds from the pool |
| assert.throws(function() { |
| b.write('a', 2048); |
| }, RangeError); |
| |
| // throw when writing to negative offset |
| assert.throws(function() { |
| b.write('a', -1); |
| }, RangeError); |
| |
| // try to copy 0 bytes worth of data into an empty buffer |
| b.copy(Buffer(0), 0, 0, 0); |
| |
| // try to copy 0 bytes past the end of the target buffer |
| b.copy(Buffer(0), 1, 1, 1); |
| b.copy(Buffer(1), 1, 1, 1); |
| |
| // try to copy 0 bytes from past the end of the source buffer |
| b.copy(Buffer(1), 0, 2048, 2048); |
| |
| var rangeBuffer = new Buffer('abc'); |
| |
| // if start >= buffer's length, empty string will be returned |
| assert.equal(rangeBuffer.toString('ascii', 3), ''); |
| assert.equal(rangeBuffer.toString('ascii', +Infinity), ''); |
| assert.equal(rangeBuffer.toString('ascii', 3.14, 3), ''); |
| assert.equal(rangeBuffer.toString('ascii', 'Infinity', 3), ''); |
| |
| // if end <= 0, empty string will be returned |
| assert.equal(rangeBuffer.toString('ascii', 1, 0), ''); |
| assert.equal(rangeBuffer.toString('ascii', 1, -1.2), ''); |
| assert.equal(rangeBuffer.toString('ascii', 1, -100), ''); |
| assert.equal(rangeBuffer.toString('ascii', 1, -Infinity), ''); |
| |
| // if start < 0, start will be taken as zero |
| assert.equal(rangeBuffer.toString('ascii', -1, 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', -1.99, 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', -Infinity, 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', '-1', 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', '-1.99', 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', '-Infinity', 3), 'abc'); |
| |
| // if start is an invalid integer, start will be taken as zero |
| assert.equal(rangeBuffer.toString('ascii', 'node.js', 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', {}, 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', [], 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', NaN, 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', null, 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', undefined, 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', false, 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', '', 3), 'abc'); |
| |
| // but, if start is an integer when coerced, then it will be coerced and used. |
| assert.equal(rangeBuffer.toString('ascii', '-1', 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', '1', 3), 'bc'); |
| assert.equal(rangeBuffer.toString('ascii', '-Infinity', 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', '3', 3), ''); |
| assert.equal(rangeBuffer.toString('ascii', Number(3), 3), ''); |
| assert.equal(rangeBuffer.toString('ascii', '3.14', 3), ''); |
| assert.equal(rangeBuffer.toString('ascii', '1.99', 3), 'bc'); |
| assert.equal(rangeBuffer.toString('ascii', '-1.99', 3), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 1.99, 3), 'bc'); |
| assert.equal(rangeBuffer.toString('ascii', true, 3), 'bc'); |
| |
| // if end > buffer's length, end will be taken as buffer's length |
| assert.equal(rangeBuffer.toString('ascii', 0, 5), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 0, 6.99), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 0, Infinity), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 0, '5'), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 0, '6.99'), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 0, 'Infinity'), 'abc'); |
| |
| // if end is an invalid integer, end will be taken as buffer's length |
| assert.equal(rangeBuffer.toString('ascii', 0, 'node.js'), ''); |
| assert.equal(rangeBuffer.toString('ascii', 0, {}), ''); |
| assert.equal(rangeBuffer.toString('ascii', 0, NaN), ''); |
| assert.equal(rangeBuffer.toString('ascii', 0, undefined), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 0), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 0, null), ''); |
| assert.equal(rangeBuffer.toString('ascii', 0, []), ''); |
| assert.equal(rangeBuffer.toString('ascii', 0, false), ''); |
| assert.equal(rangeBuffer.toString('ascii', 0, ''), ''); |
| |
| // but, if end is an integer when coerced, then it will be coerced and used. |
| assert.equal(rangeBuffer.toString('ascii', 0, '-1'), ''); |
| assert.equal(rangeBuffer.toString('ascii', 0, '1'), 'a'); |
| assert.equal(rangeBuffer.toString('ascii', 0, '-Infinity'), ''); |
| assert.equal(rangeBuffer.toString('ascii', 0, '3'), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 0, Number(3)), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 0, '3.14'), 'abc'); |
| assert.equal(rangeBuffer.toString('ascii', 0, '1.99'), 'a'); |
| assert.equal(rangeBuffer.toString('ascii', 0, '-1.99'), ''); |
| assert.equal(rangeBuffer.toString('ascii', 0, 1.99), 'a'); |
| assert.equal(rangeBuffer.toString('ascii', 0, true), 'a'); |
| |
| // try toString() with a object as a encoding |
| assert.equal(rangeBuffer.toString({toString: function() { |
| return 'ascii'; |
| }}), 'abc'); |
| |
| // testing for smart defaults and ability to pass string values as offset |
| var writeTest = new Buffer('abcdes'); |
| writeTest.write('n', 'ascii'); |
| writeTest.write('o', '1', 'ascii'); |
| writeTest.write('d', '2', 'ascii'); |
| writeTest.write('e', 3, 'ascii'); |
| writeTest.write('j', 4, 'ascii'); |
| assert.equal(writeTest.toString(), 'nodejs'); |
| |
| // ASCII slice test |
| { |
| var asciiString = 'hello world'; |
| |
| for (var i = 0; i < asciiString.length; i++) { |
| b[i] = asciiString.charCodeAt(i); |
| } |
| var asciiSlice = b.toString('ascii', 0, asciiString.length); |
| assert.equal(asciiString, asciiSlice); |
| } |
| |
| { |
| var asciiString = 'hello world'; |
| var offset = 100; |
| |
| var written = b.write(asciiString, offset, 'ascii'); |
| assert.equal(asciiString.length, written); |
| var asciiSlice = b.toString('ascii', offset, offset + asciiString.length); |
| assert.equal(asciiString, asciiSlice); |
| } |
| |
| { |
| var asciiString = 'hello world'; |
| var offset = 100; |
| |
| var sliceA = b.slice(offset, offset + asciiString.length); |
| var sliceB = b.slice(offset, offset + asciiString.length); |
| for (var i = 0; i < asciiString.length; i++) { |
| assert.equal(sliceA[i], sliceB[i]); |
| } |
| } |
| |
| // UTF-8 slice test |
| |
| var utf8String = '¡hέlló wôrld!'; |
| var offset = 100; |
| |
| b.write(utf8String, 0, Buffer.byteLength(utf8String), 'utf8'); |
| var utf8Slice = b.toString('utf8', 0, Buffer.byteLength(utf8String)); |
| assert.equal(utf8String, utf8Slice); |
| |
| var written = b.write(utf8String, offset, 'utf8'); |
| assert.equal(Buffer.byteLength(utf8String), written); |
| utf8Slice = b.toString('utf8', offset, offset + Buffer.byteLength(utf8String)); |
| assert.equal(utf8String, utf8Slice); |
| |
| var sliceA = b.slice(offset, offset + Buffer.byteLength(utf8String)); |
| var sliceB = b.slice(offset, offset + Buffer.byteLength(utf8String)); |
| for (var i = 0; i < Buffer.byteLength(utf8String); i++) { |
| assert.equal(sliceA[i], sliceB[i]); |
| } |
| |
| { |
| var slice = b.slice(100, 150); |
| assert.equal(50, slice.length); |
| for (var i = 0; i < 50; i++) { |
| assert.equal(b[100 + i], slice[i]); |
| } |
| } |
| |
| { |
| // make sure only top level parent propagates from allocPool |
| var b = new Buffer(5); |
| var c = b.slice(0, 4); |
| var d = c.slice(0, 2); |
| assert.equal(b.parent, c.parent); |
| assert.equal(b.parent, d.parent); |
| } |
| |
| { |
| // also from a non-pooled instance |
| var b = new SlowBuffer(5); |
| var c = b.slice(0, 4); |
| var d = c.slice(0, 2); |
| assert.equal(c.parent, d.parent); |
| } |
| |
| { |
| // Bug regression test |
| var testValue = '\u00F6\u65E5\u672C\u8A9E'; // ö日本語 |
| var buffer = new Buffer(32); |
| var size = buffer.write(testValue, 0, 'utf8'); |
| // console.log('bytes written to buffer: ' + size); |
| var slice = buffer.toString('utf8', 0, size); |
| assert.equal(slice, testValue); |
| } |
| |
| { |
| // Test triple slice |
| var a = new Buffer(8); |
| for (var i = 0; i < 8; i++) a[i] = i; |
| var b = a.slice(4, 8); |
| assert.equal(4, b[0]); |
| assert.equal(5, b[1]); |
| assert.equal(6, b[2]); |
| assert.equal(7, b[3]); |
| var c = b.slice(2, 4); |
| assert.equal(6, c[0]); |
| assert.equal(7, c[1]); |
| } |
| |
| { |
| var d = new Buffer([23, 42, 255]); |
| assert.equal(d.length, 3); |
| assert.equal(d[0], 23); |
| assert.equal(d[1], 42); |
| assert.equal(d[2], 255); |
| assert.deepStrictEqual(d, new Buffer(d)); |
| } |
| |
| { |
| var e = new Buffer('über'); |
| // console.error('uber: \'%s\'', e.toString()); |
| assert.deepStrictEqual(e, new Buffer([195, 188, 98, 101, 114])); |
| } |
| |
| { |
| var f = new Buffer('über', 'ascii'); |
| // console.error('f.length: %d (should be 4)', f.length); |
| assert.deepStrictEqual(f, new Buffer([252, 98, 101, 114])); |
| } |
| |
| ['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { |
| { |
| var f = new Buffer('über', encoding); |
| // console.error('f.length: %d (should be 8)', f.length); |
| assert.deepStrictEqual(f, new Buffer([252, 0, 98, 0, 101, 0, 114, 0])); |
| } |
| |
| { |
| var f = new Buffer('привет', encoding); |
| // console.error('f.length: %d (should be 12)', f.length); |
| var expected = new Buffer([63, 4, 64, 4, 56, 4, 50, 4, 53, 4, 66, 4]); |
| assert.deepStrictEqual(f, expected); |
| assert.equal(f.toString(encoding), 'привет'); |
| } |
| |
| { |
| var f = new Buffer([0, 0, 0, 0, 0]); |
| assert.equal(f.length, 5); |
| var size = f.write('あいうえお', encoding); |
| // console.error('bytes written to buffer: %d (should be 4)', size); |
| assert.equal(size, 4); |
| assert.deepStrictEqual(f, new Buffer([0x42, 0x30, 0x44, 0x30, 0x00])); |
| } |
| }); |
| |
| { |
| var f = new Buffer('\uD83D\uDC4D', 'utf-16le'); // THUMBS UP SIGN (U+1F44D) |
| assert.equal(f.length, 4); |
| assert.deepStrictEqual(f, new Buffer('3DD84DDC', 'hex')); |
| } |
| |
| |
| var arrayIsh = {0: 0, 1: 1, 2: 2, 3: 3, length: 4}; |
| var g = new Buffer(arrayIsh); |
| assert.deepStrictEqual(g, new Buffer([0, 1, 2, 3])); |
| var strArrayIsh = {0: '0', 1: '1', 2: '2', 3: '3', length: 4}; |
| g = new Buffer(strArrayIsh); |
| assert.deepStrictEqual(g, new Buffer([0, 1, 2, 3])); |
| |
| |
| // |
| // Test toString('base64') |
| // |
| assert.equal('TWFu', (new Buffer('Man')).toString('base64')); |
| |
| { |
| // test that regular and URL-safe base64 both work |
| var expected = [0xff, 0xff, 0xbe, 0xff, 0xef, 0xbf, 0xfb, 0xef, 0xff]; |
| assert.deepStrictEqual(Buffer('//++/++/++//', 'base64'), Buffer(expected)); |
| assert.deepStrictEqual(Buffer('__--_--_--__', 'base64'), Buffer(expected)); |
| } |
| |
| { |
| // big example |
| var quote = 'Man is distinguished, not only by his reason, but by this ' + |
| 'singular passion from other animals, which is a lust ' + |
| 'of the mind, that by a perseverance of delight in the ' + |
| 'continued and indefatigable generation of knowledge, ' + |
| 'exceeds the short vehemence of any carnal pleasure.'; |
| var expected = 'TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb' + |
| '24sIGJ1dCBieSB0aGlzIHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlci' + |
| 'BhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2YgdGhlIG1pbmQsIHRoYXQ' + |
| 'gYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu' + |
| 'dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZ' + |
| 'GdlLCBleGNlZWRzIHRoZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm' + |
| '5hbCBwbGVhc3VyZS4='; |
| assert.equal(expected, (new Buffer(quote)).toString('base64')); |
| |
| var b = new Buffer(1024); |
| var bytesWritten = b.write(expected, 0, 'base64'); |
| assert.equal(quote.length, bytesWritten); |
| assert.equal(quote, b.toString('ascii', 0, quote.length)); |
| |
| // check that the base64 decoder ignores whitespace |
| var expectedWhite = expected.slice(0, 60) + ' \n' + |
| expected.slice(60, 120) + ' \n' + |
| expected.slice(120, 180) + ' \n' + |
| expected.slice(180, 240) + ' \n' + |
| expected.slice(240, 300) + '\n' + |
| expected.slice(300, 360) + '\n'; |
| b = new Buffer(1024); |
| bytesWritten = b.write(expectedWhite, 0, 'base64'); |
| assert.equal(quote.length, bytesWritten); |
| assert.equal(quote, b.toString('ascii', 0, quote.length)); |
| |
| // check that the base64 decoder on the constructor works |
| // even in the presence of whitespace. |
| b = new Buffer(expectedWhite, 'base64'); |
| assert.equal(quote.length, b.length); |
| assert.equal(quote, b.toString('ascii', 0, quote.length)); |
| |
| // check that the base64 decoder ignores illegal chars |
| var expectedIllegal = expected.slice(0, 60) + ' \x80' + |
| expected.slice(60, 120) + ' \xff' + |
| expected.slice(120, 180) + ' \x00' + |
| expected.slice(180, 240) + ' \x98' + |
| expected.slice(240, 300) + '\x03' + |
| expected.slice(300, 360); |
| b = new Buffer(expectedIllegal, 'base64'); |
| assert.equal(quote.length, b.length); |
| assert.equal(quote, b.toString('ascii', 0, quote.length)); |
| } |
| |
| assert.equal(new Buffer('', 'base64').toString(), ''); |
| assert.equal(new Buffer('K', 'base64').toString(), ''); |
| |
| // multiple-of-4 with padding |
| assert.equal(new Buffer('Kg==', 'base64').toString(), '*'); |
| assert.equal(new Buffer('Kio=', 'base64').toString(), '**'); |
| assert.equal(new Buffer('Kioq', 'base64').toString(), '***'); |
| assert.equal(new Buffer('KioqKg==', 'base64').toString(), '****'); |
| assert.equal(new Buffer('KioqKio=', 'base64').toString(), '*****'); |
| assert.equal(new Buffer('KioqKioq', 'base64').toString(), '******'); |
| assert.equal(new Buffer('KioqKioqKg==', 'base64').toString(), '*******'); |
| assert.equal(new Buffer('KioqKioqKio=', 'base64').toString(), '********'); |
| assert.equal(new Buffer('KioqKioqKioq', 'base64').toString(), '*********'); |
| assert.equal(new Buffer('KioqKioqKioqKg==', 'base64').toString(), |
| '**********'); |
| assert.equal(new Buffer('KioqKioqKioqKio=', 'base64').toString(), |
| '***********'); |
| assert.equal(new Buffer('KioqKioqKioqKioq', 'base64').toString(), |
| '************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKg==', 'base64').toString(), |
| '*************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKio=', 'base64').toString(), |
| '**************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKioq', 'base64').toString(), |
| '***************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKioqKg==', 'base64').toString(), |
| '****************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKioqKio=', 'base64').toString(), |
| '*****************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKioqKioq', 'base64').toString(), |
| '******************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKg==', 'base64').toString(), |
| '*******************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKio=', 'base64').toString(), |
| '********************'); |
| |
| // no padding, not a multiple of 4 |
| assert.equal(new Buffer('Kg', 'base64').toString(), '*'); |
| assert.equal(new Buffer('Kio', 'base64').toString(), '**'); |
| assert.equal(new Buffer('KioqKg', 'base64').toString(), '****'); |
| assert.equal(new Buffer('KioqKio', 'base64').toString(), '*****'); |
| assert.equal(new Buffer('KioqKioqKg', 'base64').toString(), '*******'); |
| assert.equal(new Buffer('KioqKioqKio', 'base64').toString(), '********'); |
| assert.equal(new Buffer('KioqKioqKioqKg', 'base64').toString(), '**********'); |
| assert.equal(new Buffer('KioqKioqKioqKio', 'base64').toString(), '***********'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKg', 'base64').toString(), |
| '*************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKio', 'base64').toString(), |
| '**************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKioqKg', 'base64').toString(), |
| '****************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKioqKio', 'base64').toString(), |
| '*****************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKg', 'base64').toString(), |
| '*******************'); |
| assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKio', 'base64').toString(), |
| '********************'); |
| |
| // handle padding graciously, multiple-of-4 or not |
| assert.equal( |
| new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw==', 'base64').length, |
| 32 |
| ); |
| assert.equal( |
| new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw=', 'base64').length, |
| 32 |
| ); |
| assert.equal( |
| new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw', 'base64').length, |
| 32 |
| ); |
| assert.equal( |
| new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg==', 'base64').length, |
| 31 |
| ); |
| assert.equal( |
| new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg=', 'base64').length, |
| 31 |
| ); |
| assert.equal( |
| new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg', 'base64').length, |
| 31 |
| ); |
| |
| // This string encodes single '.' character in UTF-16 |
| var dot = new Buffer('//4uAA==', 'base64'); |
| assert.equal(dot[0], 0xff); |
| assert.equal(dot[1], 0xfe); |
| assert.equal(dot[2], 0x2e); |
| assert.equal(dot[3], 0x00); |
| assert.equal(dot.toString('base64'), '//4uAA=='); |
| |
| { |
| // Writing base64 at a position > 0 should not mangle the result. |
| // |
| // https://github.com/joyent/node/issues/402 |
| var segments = ['TWFkbmVzcz8h', 'IFRoaXM=', 'IGlz', 'IG5vZGUuanMh']; |
| var b = new Buffer(64); |
| var pos = 0; |
| |
| for (var i = 0; i < segments.length; ++i) { |
| pos += b.write(segments[i], pos, 'base64'); |
| } |
| assert.equal(b.toString('latin1', 0, pos), 'Madness?! This is node.js!'); |
| assert.equal(b.toString('binary', 0, pos), 'Madness?! This is node.js!'); |
| } |
| |
| // Regression test for https://github.com/nodejs/node/issues/3496. |
| // assert.equal(Buffer('=bad'.repeat(1e4), 'base64').length, 0); |
| |
| { |
| // Creating buffers larger than pool size. |
| var l = Buffer.poolSize + 5; |
| var s = 'h'.repeat(l); |
| |
| var b = new Buffer(s); |
| |
| for (var i = 0; i < l; i++) { |
| assert.equal('h'.charCodeAt(0), b[i]); |
| } |
| |
| var sb = b.toString(); |
| assert.equal(sb.length, s.length); |
| assert.equal(sb, s); |
| } |
| |
| { |
| // Single argument slice |
| var b = new Buffer('abcde'); |
| assert.equal('bcde', b.slice(1).toString()); |
| } |
| |
| // slice(0,0).length === 0 |
| assert.equal(0, Buffer('hello').slice(0, 0).length); |
| |
| // test hex toString |
| // console.log('Create hex string from buffer'); |
| var hexb = new Buffer(256); |
| for (var i = 0; i < 256; i++) { |
| hexb[i] = i; |
| } |
| var hexStr = hexb.toString('hex'); |
| assert.equal(hexStr, |
| '000102030405060708090a0b0c0d0e0f' + |
| '101112131415161718191a1b1c1d1e1f' + |
| '202122232425262728292a2b2c2d2e2f' + |
| '303132333435363738393a3b3c3d3e3f' + |
| '404142434445464748494a4b4c4d4e4f' + |
| '505152535455565758595a5b5c5d5e5f' + |
| '606162636465666768696a6b6c6d6e6f' + |
| '707172737475767778797a7b7c7d7e7f' + |
| '808182838485868788898a8b8c8d8e8f' + |
| '909192939495969798999a9b9c9d9e9f' + |
| 'a0a1a2a3a4a5a6a7a8a9aaabacadaeaf' + |
| 'b0b1b2b3b4b5b6b7b8b9babbbcbdbebf' + |
| 'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf' + |
| 'd0d1d2d3d4d5d6d7d8d9dadbdcdddedf' + |
| 'e0e1e2e3e4e5e6e7e8e9eaebecedeeef' + |
| 'f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff'); |
| |
| // console.log('Create buffer from hex string'); |
| var hexb2 = new Buffer(hexStr, 'hex'); |
| for (var i = 0; i < 256; i++) { |
| assert.equal(hexb2[i], hexb[i]); |
| } |
| |
| // Test single base64 char encodes as 0 |
| // assert.strictEqual(Buffer.from('A', 'base64').length, 0); |
| |
| { |
| // test an invalid slice end. |
| // console.log('Try to slice off the end of the buffer'); |
| var b = new Buffer([1, 2, 3, 4, 5]); |
| var b2 = b.toString('hex', 1, 10000); |
| var b3 = b.toString('hex', 1, 5); |
| var b4 = b.toString('hex', 1); |
| assert.equal(b2, b3); |
| assert.equal(b2, b4); |
| } |
| |
| function buildBuffer(data) { |
| if (Array.isArray(data)) { |
| var buffer = Buffer(data.length); |
| data.forEach(function(v, k) { |
| buffer[k] = v; |
| }); |
| return buffer; |
| } |
| return null; |
| } |
| |
| var x = buildBuffer([0x81, 0xa3, 0x66, 0x6f, 0x6f, 0xa3, 0x62, 0x61, 0x72]); |
| |
| // console.log(x.inspect()); |
| assert.equal('<Buffer 81 a3 66 6f 6f a3 62 61 72>', x.inspect()); |
| |
| { |
| var z = x.slice(4); |
| // console.log(z.inspect()); |
| // console.log(z.length); |
| assert.equal(5, z.length); |
| assert.equal(0x6f, z[0]); |
| assert.equal(0xa3, z[1]); |
| assert.equal(0x62, z[2]); |
| assert.equal(0x61, z[3]); |
| assert.equal(0x72, z[4]); |
| } |
| |
| { |
| var z = x.slice(0); |
| // console.log(z.inspect()); |
| // console.log(z.length); |
| assert.equal(z.length, x.length); |
| } |
| |
| { |
| var z = x.slice(0, 4); |
| // console.log(z.inspect()); |
| // console.log(z.length); |
| assert.equal(4, z.length); |
| assert.equal(0x81, z[0]); |
| assert.equal(0xa3, z[1]); |
| } |
| |
| { |
| var z = x.slice(0, 9); |
| // console.log(z.inspect()); |
| // console.log(z.length); |
| assert.equal(9, z.length); |
| } |
| |
| { |
| var z = x.slice(1, 4); |
| // console.log(z.inspect()); |
| // console.log(z.length); |
| assert.equal(3, z.length); |
| assert.equal(0xa3, z[0]); |
| } |
| |
| { |
| var z = x.slice(2, 4); |
| // console.log(z.inspect()); |
| // console.log(z.length); |
| assert.equal(2, z.length); |
| assert.equal(0x66, z[0]); |
| assert.equal(0x6f, z[1]); |
| } |
| |
| assert.equal(0, Buffer('hello').slice(0, 0).length); |
| |
| ['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { |
| var b = new Buffer(10); |
| b.write('あいうえお', encoding); |
| assert.equal(b.toString(encoding), 'あいうえお'); |
| }); |
| |
| { |
| // latin1 encoding should write only one byte per character. |
| var b = Buffer([0xde, 0xad, 0xbe, 0xef]); |
| var s = String.fromCharCode(0xffff); |
| b.write(s, 0, 'latin1'); |
| assert.equal(0xff, b[0]); |
| assert.equal(0xad, b[1]); |
| assert.equal(0xbe, b[2]); |
| assert.equal(0xef, b[3]); |
| s = String.fromCharCode(0xaaee); |
| b.write(s, 0, 'latin1'); |
| assert.equal(0xee, b[0]); |
| assert.equal(0xad, b[1]); |
| assert.equal(0xbe, b[2]); |
| assert.equal(0xef, b[3]); |
| } |
| |
| { |
| // Binary encoding should write only one byte per character. |
| var b = Buffer([0xde, 0xad, 0xbe, 0xef]); |
| var s = String.fromCharCode(0xffff); |
| b.write(s, 0, 'binary'); |
| assert.equal(0xff, b[0]); |
| assert.equal(0xad, b[1]); |
| assert.equal(0xbe, b[2]); |
| assert.equal(0xef, b[3]); |
| s = String.fromCharCode(0xaaee); |
| b.write(s, 0, 'binary'); |
| assert.equal(0xee, b[0]); |
| assert.equal(0xad, b[1]); |
| assert.equal(0xbe, b[2]); |
| assert.equal(0xef, b[3]); |
| } |
| |
| { |
| // #1210 Test UTF-8 string includes null character |
| var buf = new Buffer('\0'); |
| assert.equal(buf.length, 1); |
| buf = new Buffer('\0\0'); |
| assert.equal(buf.length, 2); |
| } |
| |
| { |
| var buf = new Buffer(2); |
| var written = buf.write(''); // 0byte |
| assert.equal(written, 0); |
| written = buf.write('\0'); // 1byte (v8 adds null terminator) |
| assert.equal(written, 1); |
| written = buf.write('a\0'); // 1byte * 2 |
| assert.equal(written, 2); |
| written = buf.write('あ'); // 3bytes |
| assert.equal(written, 0); |
| written = buf.write('\0あ'); // 1byte + 3bytes |
| assert.equal(written, 1); |
| written = buf.write('\0\0あ'); // 1byte * 2 + 3bytes |
| assert.equal(written, 2); |
| } |
| |
| { |
| var buf = new Buffer(10); |
| written = buf.write('あいう'); // 3bytes * 3 (v8 adds null terminator) |
| assert.equal(written, 9); |
| written = buf.write('あいう\0'); // 3bytes * 3 + 1byte |
| assert.equal(written, 10); |
| } |
| |
| { |
| // #243 Test write() with maxLength |
| var buf = new Buffer(4); |
| buf.fill(0xFF); |
| var written = buf.write('abcd', 1, 2, 'utf8'); |
| // console.log(buf); |
| assert.equal(written, 2); |
| assert.equal(buf[0], 0xFF); |
| assert.equal(buf[1], 0x61); |
| assert.equal(buf[2], 0x62); |
| assert.equal(buf[3], 0xFF); |
| |
| buf.fill(0xFF); |
| written = buf.write('abcd', 1, 4); |
| // console.log(buf); |
| assert.equal(written, 3); |
| assert.equal(buf[0], 0xFF); |
| assert.equal(buf[1], 0x61); |
| assert.equal(buf[2], 0x62); |
| assert.equal(buf[3], 0x63); |
| |
| buf.fill(0xFF); |
| written = buf.write('abcd', 1, 2, 'utf8'); |
| // console.log(buf); |
| assert.equal(written, 2); |
| assert.equal(buf[0], 0xFF); |
| assert.equal(buf[1], 0x61); |
| assert.equal(buf[2], 0x62); |
| assert.equal(buf[3], 0xFF); |
| |
| buf.fill(0xFF); |
| written = buf.write('abcdef', 1, 2, 'hex'); |
| // console.log(buf); |
| assert.equal(written, 2); |
| assert.equal(buf[0], 0xFF); |
| assert.equal(buf[1], 0xAB); |
| assert.equal(buf[2], 0xCD); |
| assert.equal(buf[3], 0xFF); |
| |
| ['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { |
| buf.fill(0xFF); |
| written = buf.write('abcd', 0, 2, encoding); |
| // console.log(buf); |
| assert.equal(written, 2); |
| assert.equal(buf[0], 0x61); |
| assert.equal(buf[1], 0x00); |
| assert.equal(buf[2], 0xFF); |
| assert.equal(buf[3], 0xFF); |
| }); |
| } |
| |
| { |
| // test offset returns are correct |
| var b = new Buffer(16); |
| assert.equal(4, b.writeUInt32LE(0, 0)); |
| assert.equal(6, b.writeUInt16LE(0, 4)); |
| assert.equal(7, b.writeUInt8(0, 6)); |
| assert.equal(8, b.writeInt8(0, 7)); |
| assert.equal(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/ |
| var buf = new Buffer('ab\ud800cd', 'utf8'); |
| assert.equal(buf[0], 0x61); |
| assert.equal(buf[1], 0x62); |
| assert.equal(buf[2], 0xef); |
| assert.equal(buf[3], 0xbf); |
| assert.equal(buf[4], 0xbd); |
| assert.equal(buf[5], 0x63); |
| assert.equal(buf[6], 0x64); |
| } |
| |
| { |
| // test for buffer overrun |
| var buf = new Buffer([0, 0, 0, 0, 0]); // length: 5 |
| var sub = buf.slice(0, 4); // length: 4 |
| written = sub.write('12345', 'latin1'); |
| assert.equal(written, 4); |
| assert.equal(buf[4], 0); |
| written = sub.write('12345', 'binary'); |
| assert.equal(written, 4); |
| assert.equal(buf[4], 0); |
| } |
| |
| // 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(3.3).fill().toString(); // throws bad argument error in commit 43cb4ec |
| assert.equal(Buffer(NaN).length, 0); |
| assert.equal(Buffer(3.3).length, 3); |
| assert.equal(Buffer({length: 3.3}).length, 3); |
| assert.equal(Buffer({length: 'BAM'}).length, 0); |
| |
| // Make sure that strings are not coerced to numbers. |
| assert.equal(Buffer('99').length, 2); |
| assert.equal(Buffer('13.37').length, 5); |
| |
| // Ensure that the length argument is respected. |
| 'ascii utf8 hex base64 latin1 binary'.split(' ').forEach(function(enc) { |
| assert.equal(Buffer(1).write('aaaaaa', 0, 1, enc), 1); |
| }); |
| |
| { |
| // Regression test, guard against buffer overrun in the base64 decoder. |
| var a = Buffer(3); |
| var b = Buffer('xxx'); |
| a.write('aaaaaaaa', 'base64'); |
| assert.equal(b.toString(), 'xxx'); |
| } |
| |
| // issue GH-3416 |
| Buffer(Buffer(0), 0, 0); |
| |
| [ 'hex', |
| 'utf8', |
| 'utf-8', |
| 'ascii', |
| 'latin1', |
| 'binary', |
| 'base64', |
| 'ucs2', |
| 'ucs-2', |
| 'utf16le', |
| 'utf-16le' ].forEach(function(enc) { |
| assert.equal(Buffer.isEncoding(enc), true); |
| }); |
| |
| [ 'utf9', |
| 'utf-7', |
| 'Unicode-FTW', |
| 'new gnu gun' ].forEach(function(enc) { |
| assert.equal(Buffer.isEncoding(enc), false); |
| }); |
| |
| |
| // GH-5110 |
| { |
| var buffer = new Buffer('test'); |
| var string = JSON.stringify(buffer); |
| |
| assert.strictEqual(string, '{"type":"Buffer","data":[116,101,115,116]}'); |
| |
| assert.deepStrictEqual(buffer, JSON.parse(string, function(key, value) { |
| return value && value.type === 'Buffer' |
| ? new Buffer(value.data) |
| : value; |
| })); |
| } |
| |
| // issue GH-7849 |
| { |
| var buf = new Buffer('test'); |
| var json = JSON.stringify(buf); |
| var obj = JSON.parse(json); |
| var copy = new Buffer(obj); |
| |
| assert(buf.equals(copy)); |
| } |
| |
| // issue GH-4331 |
| assert.throws(function() { |
| Buffer(0xFFFFFFFF); |
| }, RangeError); |
| assert.throws(function() { |
| Buffer(0xFFFFFFFFF); |
| }, RangeError); |
| |
| // issue GH-5587 |
| assert.throws(function() { |
| var buf = new Buffer(8); |
| buf.writeFloatLE(0, 5); |
| }, RangeError); |
| assert.throws(function() { |
| var buf = new Buffer(16); |
| buf.writeDoubleLE(0, 9); |
| }, RangeError); |
| |
| |
| // attempt to overflow buffers, similar to previous bug in array buffers |
| assert.throws(function() { |
| var buf = Buffer(8); |
| buf.readFloatLE(0xffffffff); |
| }, RangeError); |
| |
| assert.throws(function() { |
| var buf = Buffer(8); |
| buf.writeFloatLE(0.0, 0xffffffff); |
| }, RangeError); |
| |
| assert.throws(function() { |
| var buf = Buffer(8); |
| buf.readFloatLE(0xffffffff); |
| }, RangeError); |
| |
| assert.throws(function() { |
| var buf = Buffer(8); |
| buf.writeFloatLE(0.0, 0xffffffff); |
| }, RangeError); |
| |
| |
| // ensure negative values can't get past offset |
| assert.throws(function() { |
| var buf = Buffer(8); |
| buf.readFloatLE(-1); |
| }, RangeError); |
| |
| assert.throws(function() { |
| var buf = Buffer(8); |
| buf.writeFloatLE(0.0, -1); |
| }, RangeError); |
| |
| assert.throws(function() { |
| var buf = Buffer(8); |
| buf.readFloatLE(-1); |
| }, RangeError); |
| |
| assert.throws(function() { |
| var buf = Buffer(8); |
| buf.writeFloatLE(0.0, -1); |
| }, RangeError); |
| |
| // offset checks |
| { |
| var buf = new Buffer(0); |
| |
| assert.throws(function() { buf.readUInt8(0); }, RangeError); |
| assert.throws(function() { buf.readInt8(0); }, RangeError); |
| } |
| |
| { |
| var buf = new Buffer([0xFF]); |
| |
| assert.equal(buf.readUInt8(0), 255); |
| assert.equal(buf.readInt8(0), -1); |
| } |
| |
| [16, 32].forEach(function(bits) { |
| var buf = new Buffer(bits / 8 - 1); |
| |
| assert.throws(function() { buf['readUInt' + bits + 'BE'](0); }, |
| RangeError, |
| 'readUInt' + bits + 'BE'); |
| |
| assert.throws(function() { buf['readUInt' + bits + 'LE'](0); }, |
| RangeError, |
| 'readUInt' + bits + 'LE'); |
| |
| assert.throws(function() { buf['readInt' + bits + 'BE'](0); }, |
| RangeError, |
| 'readInt' + bits + 'BE()'); |
| |
| assert.throws(function() { buf['readInt' + bits + 'LE'](0); }, |
| RangeError, |
| 'readInt' + bits + 'LE()'); |
| }); |
| |
| [16, 32].forEach(function(bits) { |
| var buf = new Buffer([0xFF, 0xFF, 0xFF, 0xFF]); |
| |
| assert.equal(buf['readUInt' + bits + 'BE'](0), |
| (0xFFFFFFFF >>> (32 - bits))); |
| |
| assert.equal(buf['readUInt' + bits + 'LE'](0), |
| (0xFFFFFFFF >>> (32 - bits))); |
| |
| assert.equal(buf['readInt' + bits + 'BE'](0), |
| (0xFFFFFFFF >> (32 - bits))); |
| |
| assert.equal(buf['readInt' + bits + 'LE'](0), |
| (0xFFFFFFFF >> (32 - bits))); |
| }); |
| |
| // test for common read(U)IntLE/BE |
| { |
| var buf = new Buffer([0x01, 0x02, 0x03, 0x04, 0x05, 0x06]); |
| |
| assert.strictEqual(buf.readUIntLE(0, 1), 0x01); |
| assert.strictEqual(buf.readUIntBE(0, 1), 0x01); |
| assert.strictEqual(buf.readUIntLE(0, 3), 0x030201); |
| assert.strictEqual(buf.readUIntBE(0, 3), 0x010203); |
| assert.strictEqual(buf.readUIntLE(0, 5), 0x0504030201); |
| assert.strictEqual(buf.readUIntBE(0, 5), 0x0102030405); |
| assert.strictEqual(buf.readUIntLE(0, 6), 0x060504030201); |
| assert.strictEqual(buf.readUIntBE(0, 6), 0x010203040506); |
| assert.strictEqual(buf.readIntLE(0, 1), 0x01); |
| assert.strictEqual(buf.readIntBE(0, 1), 0x01); |
| assert.strictEqual(buf.readIntLE(0, 3), 0x030201); |
| assert.strictEqual(buf.readIntBE(0, 3), 0x010203); |
| assert.strictEqual(buf.readIntLE(0, 5), 0x0504030201); |
| assert.strictEqual(buf.readIntBE(0, 5), 0x0102030405); |
| assert.strictEqual(buf.readIntLE(0, 6), 0x060504030201); |
| assert.strictEqual(buf.readIntBE(0, 6), 0x010203040506); |
| } |
| |
| // test for common write(U)IntLE/BE |
| { |
| var buf = Buffer(3); |
| buf.writeUIntLE(0x123456, 0, 3); |
| assert.deepStrictEqual(buf.toJSON().data, [0x56, 0x34, 0x12]); |
| assert.equal(buf.readUIntLE(0, 3), 0x123456); |
| |
| buf = Buffer(3); |
| buf.writeUIntBE(0x123456, 0, 3); |
| assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56]); |
| assert.equal(buf.readUIntBE(0, 3), 0x123456); |
| |
| buf = Buffer(3); |
| buf.writeIntLE(0x123456, 0, 3); |
| assert.deepStrictEqual(buf.toJSON().data, [0x56, 0x34, 0x12]); |
| assert.equal(buf.readIntLE(0, 3), 0x123456); |
| |
| buf = Buffer(3); |
| buf.writeIntBE(0x123456, 0, 3); |
| assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56]); |
| assert.equal(buf.readIntBE(0, 3), 0x123456); |
| |
| buf = Buffer(3); |
| buf.writeIntLE(-0x123456, 0, 3); |
| assert.deepStrictEqual(buf.toJSON().data, [0xaa, 0xcb, 0xed]); |
| assert.equal(buf.readIntLE(0, 3), -0x123456); |
| |
| buf = Buffer(3); |
| buf.writeIntBE(-0x123456, 0, 3); |
| assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcb, 0xaa]); |
| assert.equal(buf.readIntBE(0, 3), -0x123456); |
| |
| buf = Buffer(3); |
| buf.writeIntLE(-0x123400, 0, 3); |
| assert.deepStrictEqual(buf.toJSON().data, [0x00, 0xcc, 0xed]); |
| assert.equal(buf.readIntLE(0, 3), -0x123400); |
| |
| buf = Buffer(3); |
| buf.writeIntBE(-0x123400, 0, 3); |
| assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcc, 0x00]); |
| assert.equal(buf.readIntBE(0, 3), -0x123400); |
| |
| buf = Buffer(3); |
| buf.writeIntLE(-0x120000, 0, 3); |
| assert.deepStrictEqual(buf.toJSON().data, [0x00, 0x00, 0xee]); |
| assert.equal(buf.readIntLE(0, 3), -0x120000); |
| |
| buf = Buffer(3); |
| buf.writeIntBE(-0x120000, 0, 3); |
| assert.deepStrictEqual(buf.toJSON().data, [0xee, 0x00, 0x00]); |
| assert.equal(buf.readIntBE(0, 3), -0x120000); |
| |
| buf = Buffer(5); |
| buf.writeUIntLE(0x1234567890, 0, 5); |
| assert.deepStrictEqual(buf.toJSON().data, [0x90, 0x78, 0x56, 0x34, 0x12]); |
| assert.equal(buf.readUIntLE(0, 5), 0x1234567890); |
| |
| buf = Buffer(5); |
| buf.writeUIntBE(0x1234567890, 0, 5); |
| assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56, 0x78, 0x90]); |
| assert.equal(buf.readUIntBE(0, 5), 0x1234567890); |
| |
| buf = Buffer(5); |
| buf.writeIntLE(0x1234567890, 0, 5); |
| assert.deepStrictEqual(buf.toJSON().data, [0x90, 0x78, 0x56, 0x34, 0x12]); |
| assert.equal(buf.readIntLE(0, 5), 0x1234567890); |
| |
| buf = Buffer(5); |
| buf.writeIntBE(0x1234567890, 0, 5); |
| assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56, 0x78, 0x90]); |
| assert.equal(buf.readIntBE(0, 5), 0x1234567890); |
| |
| buf = Buffer(5); |
| buf.writeIntLE(-0x1234567890, 0, 5); |
| assert.deepStrictEqual(buf.toJSON().data, [0x70, 0x87, 0xa9, 0xcb, 0xed]); |
| assert.equal(buf.readIntLE(0, 5), -0x1234567890); |
| |
| buf = Buffer(5); |
| buf.writeIntBE(-0x1234567890, 0, 5); |
| assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcb, 0xa9, 0x87, 0x70]); |
| assert.equal(buf.readIntBE(0, 5), -0x1234567890); |
| |
| buf = Buffer(5); |
| buf.writeIntLE(-0x0012000000, 0, 5); |
| assert.deepStrictEqual(buf.toJSON().data, [0x00, 0x00, 0x00, 0xee, 0xff]); |
| assert.equal(buf.readIntLE(0, 5), -0x0012000000); |
| |
| buf = Buffer(5); |
| buf.writeIntBE(-0x0012000000, 0, 5); |
| assert.deepStrictEqual(buf.toJSON().data, [0xff, 0xee, 0x00, 0x00, 0x00]); |
| assert.equal(buf.readIntBE(0, 5), -0x0012000000); |
| } |
| |
| // test Buffer slice |
| { |
| var buf = new Buffer('0123456789'); |
| assert.equal(buf.slice(-10, 10), '0123456789'); |
| assert.equal(buf.slice(-20, 10), '0123456789'); |
| assert.equal(buf.slice(-20, -10), ''); |
| assert.equal(buf.slice(), '0123456789'); |
| assert.equal(buf.slice(0), '0123456789'); |
| assert.equal(buf.slice(0, 0), ''); |
| assert.equal(buf.slice(undefined), '0123456789'); |
| assert.equal(buf.slice('foobar'), '0123456789'); |
| assert.equal(buf.slice(undefined, undefined), '0123456789'); |
| |
| assert.equal(buf.slice(2), '23456789'); |
| assert.equal(buf.slice(5), '56789'); |
| assert.equal(buf.slice(10), ''); |
| assert.equal(buf.slice(5, 8), '567'); |
| assert.equal(buf.slice(8, -1), '8'); |
| assert.equal(buf.slice(-10), '0123456789'); |
| assert.equal(buf.slice(0, -9), '0'); |
| assert.equal(buf.slice(0, -10), ''); |
| assert.equal(buf.slice(0, -1), '012345678'); |
| assert.equal(buf.slice(2, -2), '234567'); |
| assert.equal(buf.slice(0, 65536), '0123456789'); |
| assert.equal(buf.slice(65536, 0), ''); |
| assert.equal(buf.slice(-5, -8), ''); |
| assert.equal(buf.slice(-5, -3), '56'); |
| assert.equal(buf.slice(-10, 10), '0123456789'); |
| for (var i = 0, s = buf.toString(); i < buf.length; ++i) { |
| assert.equal(buf.slice(i), s.slice(i)); |
| assert.equal(buf.slice(0, i), s.slice(0, i)); |
| assert.equal(buf.slice(-i), s.slice(-i)); |
| assert.equal(buf.slice(0, -i), s.slice(0, -i)); |
| } |
| |
| var utf16Buf = new Buffer('0123456789', 'utf16le'); |
| assert.deepStrictEqual(utf16Buf.slice(0, 6), Buffer('012', 'utf16le')); |
| |
| assert.equal(buf.slice('0', '1'), '0'); |
| assert.equal(buf.slice('-5', '10'), '56789'); |
| assert.equal(buf.slice('-10', '10'), '0123456789'); |
| assert.equal(buf.slice('-10', '-5'), '01234'); |
| assert.equal(buf.slice('-10', '-0'), ''); |
| assert.equal(buf.slice('111'), ''); |
| assert.equal(buf.slice('0', '-111'), ''); |
| |
| // try to slice a zero length Buffer |
| // see https://github.com/joyent/node/issues/5881 |
| SlowBuffer(0).slice(0, 1); |
| } |
| |
| // Regression test for #5482: should throw but not assert in C++ land. |
| assert.throws(function() { |
| Buffer('', 'buffer'); |
| }, TypeError); |
| |
| // Regression test for #6111. Constructing a buffer from another buffer |
| // should a) work, and b) not corrupt the source buffer. |
| { |
| var a = [0]; |
| for (var i = 0; i < 7; ++i) a = a.concat(a); |
| a = a.map(function(_, i) { return i; }); |
| var b = Buffer(a); |
| var c = Buffer(b); |
| assert.strictEqual(b.length, a.length); |
| assert.strictEqual(c.length, a.length); |
| for (var i = 0, k = a.length; i < k; ++i) { |
| assert.strictEqual(a[i], i); |
| assert.strictEqual(b[i], i); |
| assert.strictEqual(c[i], i); |
| } |
| } |
| |
| |
| assert.throws(function() { |
| new Buffer((-1 >>> 0) + 1); |
| }, RangeError); |
| |
| assert.throws(function() { |
| SlowBuffer((-1 >>> 0) + 1); |
| }, RangeError); |
| |
| if (common.hasCrypto) { |
| // Test truncation after decode |
| // var crypto = require('crypto'); |
| |
| var b1 = new Buffer('YW55=======', 'base64'); |
| var b2 = new Buffer('YW55', 'base64'); |
| |
| assert.equal( |
| 1 /*crypto.createHash('sha1').update(b1).digest('hex')*/, |
| 1 /*crypto.createHash('sha1').update(b2).digest('hex')*/ |
| ); |
| } else { |
| common.skip('missing crypto'); |
| } |
| |
| // Test Compare |
| { |
| var b = new Buffer(1).fill('a'); |
| var c = new Buffer(1).fill('c'); |
| var d = new Buffer(2).fill('aa'); |
| |
| assert.equal(b.compare(c), -1); |
| assert.equal(c.compare(d), 1); |
| assert.equal(d.compare(b), 1); |
| assert.equal(b.compare(d), -1); |
| assert.equal(b.compare(b), 0); |
| |
| assert.equal(Buffer.compare(b, c), -1); |
| assert.equal(Buffer.compare(c, d), 1); |
| assert.equal(Buffer.compare(d, b), 1); |
| assert.equal(Buffer.compare(b, d), -1); |
| assert.equal(Buffer.compare(c, c), 0); |
| |
| assert.equal(Buffer.compare(Buffer(0), Buffer(0)), 0); |
| assert.equal(Buffer.compare(Buffer(0), Buffer(1)), -1); |
| assert.equal(Buffer.compare(Buffer(1), Buffer(0)), 1); |
| } |
| |
| assert.throws(function() { |
| var b = Buffer(1); |
| Buffer.compare(b, 'abc'); |
| }); |
| |
| assert.throws(function() { |
| var b = Buffer(1); |
| Buffer.compare('abc', b); |
| }); |
| |
| assert.throws(function() { |
| var b = Buffer(1); |
| b.compare('abc'); |
| }); |
| |
| // Test Equals |
| { |
| var b = new Buffer(5).fill('abcdf'); |
| var c = new Buffer(5).fill('abcdf'); |
| var d = new Buffer(5).fill('abcde'); |
| var e = new Buffer(6).fill('abcdef'); |
| |
| assert.ok(b.equals(c)); |
| assert.ok(!c.equals(d)); |
| assert.ok(!d.equals(e)); |
| assert.ok(d.equals(d)); |
| } |
| |
| assert.throws(function() { |
| var b = Buffer(1); |
| b.equals('abc'); |
| }); |
| |
| // Regression test for https://github.com/nodejs/node/issues/649. |
| assert.throws(function() { Buffer(1422561062959).toString('utf8'); }); |
| |
| { |
| // 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({ length: -Buffer.poolSize }), Buffer.from('')); |
| assert.deepStrictEqual(Buffer({ length: -100 }), Buffer.from('')); |
| |
| // Check pool offset after that by trying to write string into the pool. |
| assert.doesNotThrow(() => Buffer.from('abc')); |
| } |
| |
| |
| // Test failed or zero-sized Buffer allocations not affecting typed arrays |
| { |
| var zeroArray = new Uint32Array(10).fill(0); |
| var sizes = [1e10, 0, 0.1, -1, 'a', undefined, null, NaN]; |
| var allocators = [ |
| Buffer, |
| SlowBuffer, |
| Buffer.alloc, |
| Buffer.allocUnsafe, |
| Buffer.allocUnsafeSlow |
| ]; |
| for (var allocator of allocators) { |
| for (var size of sizes) { |
| try { |
| allocator(size); |
| } catch (e) { |
| assert.deepStrictEqual(new Uint32Array(10), zeroArray); |
| } |
| } |
| } |
| } |
| |
| // Test that large negative Buffer length inputs throw errors. |
| assert.throws(() => Buffer(-Buffer.poolSize), |
| '"size" argument must not be negative'); |
| assert.throws(() => Buffer(-100), |
| '"size" argument must not be negative'); |
| assert.throws(() => Buffer(-1), |
| '"size" argument must not be negative'); |
| |