| // Copyright Joyent, Inc. and other Node contributors. |
| // |
| // Permission is hereby granted, free of charge, to any person obtaining a |
| // copy of this software and associated documentation files (the |
| // "Software"), to deal in the Software without restriction, including |
| // without limitation the rights to use, copy, modify, merge, publish, |
| // distribute, sublicense, and/or sell copies of the Software, and to permit |
| // persons to whom the Software is furnished to do so, subject to the |
| // following conditions: |
| // |
| // The above copyright notice and this permission notice shall be included |
| // in all copies or substantial portions of the Software. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN |
| // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| // USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| var common = require('../common'); |
| var assert = require('assert'); |
| |
| var SlowBuffer = require('buffer').SlowBuffer; |
| var Buffer = require('buffer').Buffer; |
| |
| // counter to ensure unique value is always copied |
| var cntr = 0; |
| |
| // Regression test for segfault introduced in commit e501ce4. |
| ['base64','binary','ucs2','utf8','ascii'].forEach(function(encoding) { |
| var buf = new SlowBuffer(0); |
| buf.write('', encoding); |
| }); |
| |
| 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 = new Buffer(512); |
| console.log('c.length == %d', c.length); |
| assert.strictEqual(512, c.length); |
| |
| // 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 from fast to slow buffer |
| var sb = new SlowBuffer(b.length); |
| var copied = b.copy(sb); |
| console.log('copied %d bytes from b into sb'); |
| for (var i = 0; i < sb.length; i++) { |
| assert.strictEqual(sb[i], b[i]); |
| } |
| |
| var caught_error = null; |
| |
| // try to copy from before the beginning of b |
| caught_error = null; |
| try { |
| var copied = b.copy(c, 0, 100, 10); |
| } catch (err) { |
| caught_error = err; |
| } |
| |
| // copy from b to c with negative sourceStart |
| b.fill(++cntr); |
| c.fill(++cntr); |
| var copied = b.copy(c, 0, -1); |
| assert.strictEqual(c.length, copied); |
| console.log('copied %d bytes from b into c w/ negative sourceStart', copied); |
| for (var i = 0; i < c.length; i++) { |
| assert.strictEqual(b[i], c[i]); |
| } |
| |
| // 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]); |
| } |
| |
| // copy from fast buffer to slow buffer without parameters |
| var sb = new SlowBuffer(b.length); |
| sb.fill(++cntr, 0, sb.length); |
| b.fill(++cntr); |
| var copied = b.copy(sb); |
| console.log('copied %d bytes from fast buffer to slow buffer', copied); |
| for (var i = 0 ; i < b.length; i++) { |
| assert.strictEqual(b[i], sb[i]); |
| } |
| |
| // throw with negative sourceEnd |
| console.log('test copy at negative sourceEnd'); |
| assert.throws(function() { |
| b.copy(c, 0, 0, -1); |
| }, RangeError); |
| |
| // throw when sourceStart is greater than sourceEnd |
| assert.throws(function() { |
| b.copy(c, 0, 100, 10); |
| }, RangeError); |
| |
| // throw attempting to copy after end of c |
| assert.throws(function() { |
| b.copy(c, 512, 0, 10); |
| }, RangeError); |
| |
| var caught_error; |
| |
| // invalid encoding for Buffer.toString |
| caught_error = null; |
| try { |
| var copied = 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 { |
| var copied = 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('', 'binary'); |
| new Buffer(0); |
| |
| // try to write a 0-length string beyond the end of b |
| b.write('', 1024); |
| b.write('', 2048); |
| |
| // 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(new Buffer(0), 0, 0, 0); |
| |
| // try to copy 0 bytes past the end of the target buffer |
| b.copy(new Buffer(0), 1, 1, 1); |
| b.copy(new Buffer(1), 1, 1, 1); |
| |
| // try to copy 0 bytes from past the end of the source buffer |
| b.copy(new Buffer(1), 0, 2048, 2048); |
| |
| // try to toString() a 0-length slice of a buffer, both within and without the |
| // valid buffer range |
| assert.equal(new Buffer('abc').toString('ascii', 0, 0), ''); |
| assert.equal(new Buffer('abc').toString('ascii', -100, -100), ''); |
| assert.equal(new Buffer('abc').toString('ascii', 100, 100), ''); |
| |
| // try toString() with a object as a encoding |
| assert.equal(new Buffer('abc').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', 'ascii', '1'); |
| writeTest.write('d', '2', 'ascii'); |
| writeTest.write('e', 3, 'ascii'); |
| writeTest.write('j', 'ascii', 4); |
| assert.equal(writeTest.toString(), 'nodejs'); |
| |
| var asciiString = 'hello world'; |
| var offset = 100; |
| for (var j = 0; j < 500; j++) { |
| |
| 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 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 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]); |
| } |
| |
| // TODO utf8 slice tests |
| } |
| |
| |
| for (var j = 0; j < 100; j++) { |
| 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]); |
| } |
| } |
| |
| |
| |
| // 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.deepEqual(d, new Buffer(d)); |
| |
| var e = new Buffer('über'); |
| console.error('uber: \'%s\'', e.toString()); |
| assert.deepEqual(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.deepEqual(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.deepEqual(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); |
| assert.deepEqual(f, new Buffer([63, 4, 64, 4, 56, 4, 50, 4, 53, 4, 66, 4])); |
| 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); |
| var charsWritten = Buffer._charsWritten; // Copy value out. |
| console.error('bytes written to buffer: %d (should be 4)', size); |
| console.error('chars written to buffer: %d (should be 2)', charsWritten); |
| assert.equal(size, 4); |
| assert.equal(charsWritten, 2); |
| assert.deepEqual(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.deepEqual(f, new Buffer('3DD84DDC', 'hex')); |
| |
| |
| var arrayIsh = {0: 0, 1: 1, 2: 2, 3: 3, length: 4}; |
| var g = new Buffer(arrayIsh); |
| assert.deepEqual(g, new Buffer([0, 1, 2, 3])); |
| var strArrayIsh = {0: '0', 1: '1', 2: '2', 3: '3', length: 4}; |
| g = new Buffer(strArrayIsh); |
| assert.deepEqual(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.deepEqual(Buffer('//++/++/++//', 'base64'), Buffer(expected)); |
| assert.deepEqual(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 = 'TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24s' + |
| 'IGJ1dCBieSB0aGlzIHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltY' + |
| 'WxzLCB3aGljaCBpcyBhIGx1c3Qgb2YgdGhlIG1pbmQsIHRoYXQgYnkgYSBwZX' + |
| 'JzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGludWVkIGFuZCBpbmR' + |
| 'lZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo' + |
| 'ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4='; |
| assert.equal(expected, (new Buffer(quote)).toString('base64')); |
| |
| |
| 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 buf = 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('binary', 0, pos), 'Madness?! This is node.js!'); |
| |
| // Creating buffers larger than pool size. |
| var l = Buffer.poolSize + 5; |
| var s = ''; |
| for (i = 0; i < l; i++) { |
| s += 'h'; |
| } |
| |
| var b = new Buffer(s); |
| |
| for (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 |
| b = new Buffer('abcde'); |
| assert.equal('bcde', b.slice(1).toString()); |
| |
| // byte length |
| assert.equal(14, Buffer.byteLength('Il était tué')); |
| assert.equal(14, Buffer.byteLength('Il était tué', 'utf8')); |
| ['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { |
| assert.equal(24, Buffer.byteLength('Il était tué', encoding)); |
| }); |
| assert.equal(12, Buffer.byteLength('Il était tué', 'ascii')); |
| assert.equal(12, Buffer.byteLength('Il était tué', 'binary')); |
| |
| // 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 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); |
| |
| |
| // Test slice on SlowBuffer GH-843 |
| var SlowBuffer = process.binding('buffer').SlowBuffer; |
| |
| function buildSlowBuffer(data) { |
| if (Array.isArray(data)) { |
| var buffer = new SlowBuffer(data.length); |
| data.forEach(function(v, k) { |
| buffer[k] = v; |
| }); |
| return buffer; |
| } |
| return null; |
| } |
| |
| var x = buildSlowBuffer([0x81, 0xa3, 0x66, 0x6f, 0x6f, 0xa3, 0x62, 0x61, 0x72]); |
| |
| console.log(x.inspect()); |
| assert.equal('<SlowBuffer 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); |
| |
| b = new Buffer(50); |
| b.fill('h'); |
| for (var i = 0; i < b.length; i++) { |
| assert.equal('h'.charCodeAt(0), b[i]); |
| } |
| |
| b.fill(0); |
| for (var i = 0; i < b.length; i++) { |
| assert.equal(0, b[i]); |
| } |
| |
| b.fill(1, 16, 32); |
| for (var i = 0; i < 16; i++) assert.equal(0, b[i]); |
| for (; i < 32; i++) assert.equal(1, b[i]); |
| for (; i < b.length; i++) assert.equal(0, b[i]); |
| |
| ['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { |
| var b = new SlowBuffer(10); |
| b.write('あいうえお', encoding); |
| assert.equal(b.toString(encoding), 'あいうえお'); |
| }); |
| |
| // 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]); |
| |
| // testing invalid encoding on SlowBuffer.toString |
| caught_error = null; |
| try { |
| var copied = b.toString('invalid'); |
| } catch (err) { |
| caught_error = err; |
| } |
| assert.strictEqual('Unknown encoding: invalid', caught_error.message); |
| |
| // testing invalid encoding on SlowBuffer.write |
| caught_error = null; |
| try { |
| var copied = b.write('some string', 0, 5, 'invalid'); |
| } catch (err) { |
| caught_error = err; |
| } |
| assert.strictEqual('Unknown encoding: invalid', caught_error.message); |
| |
| |
| // This should not segfault the program. |
| assert.throws(function() { |
| new Buffer('"pong"', 0, 6, 8031, '127.0.0.1'); |
| }); |
| |
| // #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); |
| |
| 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); |
| |
| 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', 'utf8', 1, 2); // legacy style |
| 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 for buffer overrun |
| buf = new Buffer([0, 0, 0, 0, 0]); // length: 5 |
| var sub = buf.slice(0, 4); // length: 4 |
| written = sub.write('12345', 'binary'); |
| assert.equal(written, 4); |
| assert.equal(buf[4], 0); |
| |
| // test for _charsWritten |
| buf = new Buffer(9); |
| buf.write('あいうえ', 'utf8'); // 3bytes * 4 |
| assert.equal(Buffer._charsWritten, 3); |
| ['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { |
| buf.write('あいうえお', encoding); // 2bytes * 5 |
| assert.equal(Buffer._charsWritten, 4); |
| }); |
| buf.write('0123456789', 'ascii'); |
| assert.equal(Buffer._charsWritten, 9); |
| buf.write('0123456789', 'binary'); |
| assert.equal(Buffer._charsWritten, 9); |
| buf.write('123456', 'base64'); |
| assert.equal(Buffer._charsWritten, 4); |
| buf.write('00010203040506070809', 'hex'); |
| assert.equal(Buffer._charsWritten, 18); |
| |
| // Check for fractional length args, junk length args, etc. |
| // https://github.com/joyent/node/issues/1758 |
| Buffer(3.3).toString(); // throws bad argument error in commit 43cb4ec |
| assert.equal(Buffer(-1).length, 0); |
| assert.equal(Buffer(NaN).length, 0); |
| assert.equal(Buffer(3.3).length, 4); |
| assert.equal(Buffer({length: 3.3}).length, 4); |
| 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 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', |
| '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-3905 |
| assert.equal(JSON.stringify(Buffer('test')), '[116,101,115,116]'); |
| |
| // issue GH-4331 |
| assert.throws(function() { |
| new Buffer(0xFFFFFFFF); |
| }, RangeError); |
| assert.throws(function() { |
| new Buffer(0xFFFFFFFFF); |
| }, TypeError); |
| |
| |
| // attempt to overflow buffers, similar to previous bug in array buffers |
| assert.throws(function() { |
| var buf = new Buffer(8); |
| buf.readFloatLE(0xffffffff); |
| }, /Trying to access beyond buffer length/); |
| |
| assert.throws(function() { |
| var buf = new Buffer(8); |
| buf.writeFloatLE(0.0, 0xffffffff); |
| }, /Trying to access beyond buffer length/); |
| |
| assert.throws(function() { |
| var buf = new SlowBuffer(8); |
| buf.readFloatLE(0xffffffff); |
| }, /Trying to read beyond buffer length/); |
| |
| assert.throws(function() { |
| var buf = new SlowBuffer(8); |
| buf.writeFloatLE(0.0, 0xffffffff); |
| }, /Trying to write beyond buffer length/); |
| |
| |
| // ensure negative values can't get past offset |
| assert.throws(function() { |
| var buf = new Buffer(8); |
| buf.readFloatLE(-1); |
| }, /offset is not uint/); |
| |
| assert.throws(function() { |
| var buf = new Buffer(8); |
| buf.writeFloatLE(0.0, -1); |
| }, /offset is not uint/); |
| |
| assert.throws(function() { |
| var buf = new SlowBuffer(8); |
| buf.readFloatLE(-1); |
| }, /offset is not uint/); |
| |
| assert.throws(function() { |
| var buf = new SlowBuffer(8); |
| buf.writeFloatLE(0.0, -1); |
| }, /offset is not uint/); |
| |
| // offset checks |
| var buf = new Buffer(0); |
| |
| assert.throws(function() { buf.readUInt8(0); }, /beyond buffer length/); |
| assert.throws(function() { buf.readInt8(0); }, /beyond buffer length/); |
| |
| [16, 32].forEach(function(bits) { |
| var buf = new Buffer(bits / 8 - 1); |
| |
| assert.throws( |
| function() { buf['readUInt' + bits + 'BE'](0); }, |
| /beyond buffer length/, |
| 'readUInt' + bits + 'BE' |
| ); |
| |
| assert.throws( |
| function() { buf['readUInt' + bits + 'LE'](0); }, |
| /beyond buffer length/, |
| 'readUInt' + bits + 'LE' |
| ); |
| |
| assert.throws( |
| function() { buf['readInt' + bits + 'BE'](0); }, |
| /beyond buffer length/, |
| 'readInt' + bits + 'BE()' |
| ); |
| |
| assert.throws( |
| function() { buf['readInt' + bits + 'LE'](0); }, |
| /beyond buffer length/, |
| 'readInt' + bits + 'LE()' |
| ); |
| }); |
| |
| // SlowBuffer sanity checks. |
| assert.throws(function() { |
| var len = 0xfffff; |
| var sbuf = new SlowBuffer(len); |
| var buf = new Buffer(sbuf, len, 0); |
| SlowBuffer.makeFastBuffer(sbuf, buf, -len, len); // Should throw. |
| for (var i = 0; i < len; ++i) buf[i] = 0x42; // Try to force segfault. |
| }, RangeError); |
| |
| assert.throws(function() { |
| var len = 0xfffff; |
| var sbuf = new SlowBuffer(len); |
| var buf = new Buffer(sbuf, len, -len); // Should throw. |
| for (var i = 0; i < len; ++i) buf[i] = 0x42; // Try to force segfault. |
| }, RangeError); |
| |
| assert.throws(function() { |
| var sbuf = new SlowBuffer(1); |
| var buf = new Buffer(sbuf, 1, 0); |
| buf.length = 0xffffffff; |
| buf.slice(0xffffff0, 0xffffffe); // Should throw. |
| }, Error); |
| |
| (function() { |
| 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(0, -1), '012345678'); |
| assert.equal(buf.slice(2, -2), '234567'); |
| assert.equal(buf.slice(0, 65536), '0123456789'); |
| assert.equal(buf.slice(65536, 0), ''); |
| 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)); |
| } |
| })(); |
| |
| // Make sure byteLength properly checks for base64 padding |
| assert.equal(Buffer.byteLength('aaa=', 'base64'), 2); |
| assert.equal(Buffer.byteLength('aaaa==', 'base64'), 3); |
| |
| // Regression test for #5482: should throw but not assert in C++ land. |
| assert.throws(function() { |
| Buffer('', 'buffer'); |
| }, TypeError); |
| |
| assert.doesNotThrow(function () { |
| var slow = new SlowBuffer(1); |
| assert(slow.write('', Buffer.poolSize * 10) === 0); |
| var fast = new Buffer(1); |
| assert(fast.write('', Buffer.poolSize * 10) === 0); |
| }); |