diff options
Diffstat (limited to 'node_modules/buffer/test/node')
20 files changed, 4971 insertions, 0 deletions
diff --git a/node_modules/buffer/test/node/test-buffer-alloc.js b/node_modules/buffer/test/node/test-buffer-alloc.js new file mode 100644 index 0000000..b524f51 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-alloc.js @@ -0,0 +1,1501 @@ +'use strict'; +var Buffer = require('../../').Buffer; + +var common = { skip: function () {} }; +var assert = require('assert'); + +var Buffer = require('../../').Buffer; + +// counter to ensure unique value is always copied +var cntr = 0; + +var b = Buffer.allocUnsafe(1024); + +// 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.allocUnsafe(512); +// console.log('c.length == %d', c.length); +assert.strictEqual(512, c.length); + +var d = Buffer.from([]); +assert.strictEqual(0, d.length); + +var ui32 = new Uint32Array(4).fill(42); +var e = Buffer.from(ui32); +for (var [index, value] of e.entries()) { + assert.strictEqual(value, ui32[index]); +} + +// First check Buffer#fill() works as expected. + +assert.throws(function() { + Buffer.allocUnsafe(8).fill('a', -1); +}); + +assert.throws(function() { + Buffer.allocUnsafe(8).fill('a', 0, 9); +}); + +// Make sure this doesn't hang indefinitely. +Buffer.allocUnsafe(8).fill(''); +Buffer.alloc(8, ''); + +{ + var buf = Buffer.alloc(64, 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 = Buffer.alloc(10, '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.allocUnsafe(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.allocUnsafe(5).copy(Buffer.allocUnsafe(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 +Buffer.from(''); +Buffer.from('', 'ascii'); +Buffer.from('', 'latin1'); +Buffer.alloc(0); +Buffer.allocUnsafe(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.alloc(0), 0, 0, 0); + +// try to copy 0 bytes past the end of the target buffer +b.copy(Buffer.alloc(0), 1, 1, 1); +b.copy(Buffer.alloc(1), 1, 1, 1); + +// try to copy 0 bytes from past the end of the source buffer +b.copy(Buffer.alloc(1), 0, 2048, 2048); + +var rangeBuffer = Buffer.from('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 = Buffer.from('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 = Buffer.allocUnsafe(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 = Buffer.allocUnsafeSlow(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 = Buffer.allocUnsafe(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 = Buffer.allocUnsafe(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 = Buffer.from([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, Buffer.from(d)); +} + +{ + var e = Buffer.from('über'); +// console.error('uber: \'%s\'', e.toString()); + assert.deepStrictEqual(e, Buffer.from([195, 188, 98, 101, 114])); +} + +{ + var f = Buffer.from('über', 'ascii'); +// console.error('f.length: %d (should be 4)', f.length); + assert.deepStrictEqual(f, Buffer.from([252, 98, 101, 114])); +} + +['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { + { + var f = Buffer.from('über', encoding); +// console.error('f.length: %d (should be 8)', f.length); + assert.deepStrictEqual(f, Buffer.from([252, 0, 98, 0, 101, 0, 114, 0])); + } + + { + var f = Buffer.from('привет', encoding); +// console.error('f.length: %d (should be 12)', f.length); + assert.deepStrictEqual(f, + Buffer.from([63, 4, 64, 4, 56, 4, 50, 4, 53, 4, 66, 4])); + assert.equal(f.toString(encoding), 'привет'); + } + + { + var f = Buffer.from([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, Buffer.from([0x42, 0x30, 0x44, 0x30, 0x00])); + } +}); + +{ + var f = Buffer.from('\uD83D\uDC4D', 'utf-16le'); // THUMBS UP SIGN (U+1F44D) + assert.equal(f.length, 4); + assert.deepStrictEqual(f, Buffer.from('3DD84DDC', 'hex')); +} + + +var arrayIsh = {0: 0, 1: 1, 2: 2, 3: 3, length: 4}; +var g = Buffer.from(arrayIsh); +assert.deepStrictEqual(g, Buffer.from([0, 1, 2, 3])); +var strArrayIsh = {0: '0', 1: '1', 2: '2', 3: '3', length: 4}; +g = Buffer.from(strArrayIsh); +assert.deepStrictEqual(g, Buffer.from([0, 1, 2, 3])); + + +// +// Test toString('base64') +// +assert.equal('TWFu', (Buffer.from('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.from('//++/++/++//', 'base64'), + Buffer.from(expected)); + assert.deepStrictEqual(Buffer.from('__--_--_--__', 'base64'), + Buffer.from(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, (Buffer.from(quote)).toString('base64')); + + var b = Buffer.allocUnsafe(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 = Buffer.allocUnsafe(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 = Buffer.from(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 = Buffer.from(expectedIllegal, 'base64'); + assert.equal(quote.length, b.length); + assert.equal(quote, b.toString('ascii', 0, quote.length)); +} + +assert.equal(Buffer.from('', 'base64').toString(), ''); +assert.equal(Buffer.from('K', 'base64').toString(), ''); + +// multiple-of-4 with padding +assert.equal(Buffer.from('Kg==', 'base64').toString(), '*'); +assert.equal(Buffer.from('Kio=', 'base64').toString(), '**'); +assert.equal(Buffer.from('Kioq', 'base64').toString(), '***'); +assert.equal(Buffer.from('KioqKg==', 'base64').toString(), '****'); +assert.equal(Buffer.from('KioqKio=', 'base64').toString(), '*****'); +assert.equal(Buffer.from('KioqKioq', 'base64').toString(), '******'); +assert.equal(Buffer.from('KioqKioqKg==', 'base64').toString(), '*******'); +assert.equal(Buffer.from('KioqKioqKio=', 'base64').toString(), '********'); +assert.equal(Buffer.from('KioqKioqKioq', 'base64').toString(), '*********'); +assert.equal(Buffer.from('KioqKioqKioqKg==', 'base64').toString(), + '**********'); +assert.equal(Buffer.from('KioqKioqKioqKio=', 'base64').toString(), + '***********'); +assert.equal(Buffer.from('KioqKioqKioqKioq', 'base64').toString(), + '************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKg==', 'base64').toString(), + '*************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKio=', 'base64').toString(), + '**************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKioq', 'base64').toString(), + '***************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKioqKg==', 'base64').toString(), + '****************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKioqKio=', 'base64').toString(), + '*****************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKioqKioq', 'base64').toString(), + '******************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKioqKioqKg==', 'base64').toString(), + '*******************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKioqKioqKio=', 'base64').toString(), + '********************'); + +// no padding, not a multiple of 4 +assert.equal(Buffer.from('Kg', 'base64').toString(), '*'); +assert.equal(Buffer.from('Kio', 'base64').toString(), '**'); +assert.equal(Buffer.from('KioqKg', 'base64').toString(), '****'); +assert.equal(Buffer.from('KioqKio', 'base64').toString(), '*****'); +assert.equal(Buffer.from('KioqKioqKg', 'base64').toString(), '*******'); +assert.equal(Buffer.from('KioqKioqKio', 'base64').toString(), '********'); +assert.equal(Buffer.from('KioqKioqKioqKg', 'base64').toString(), '**********'); +assert.equal(Buffer.from('KioqKioqKioqKio', 'base64').toString(), + '***********'); +assert.equal(Buffer.from('KioqKioqKioqKioqKg', 'base64').toString(), + '*************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKio', 'base64').toString(), + '**************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKioqKg', 'base64').toString(), + '****************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKioqKio', 'base64').toString(), + '*****************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKioqKioqKg', 'base64').toString(), + '*******************'); +assert.equal(Buffer.from('KioqKioqKioqKioqKioqKioqKio', 'base64').toString(), + '********************'); + +// handle padding graciously, multiple-of-4 or not +assert.equal( + Buffer.from('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw==', 'base64').length, + 32 +); +assert.equal( + Buffer.from('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw=', 'base64').length, + 32 +); +assert.equal( + Buffer.from('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw', 'base64').length, + 32 +); +assert.equal( + Buffer.from('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg==', 'base64').length, + 31 +); +assert.equal( + Buffer.from('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg=', 'base64').length, + 31 +); +assert.equal( + Buffer.from('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg', 'base64').length, + 31 +); + +// This string encodes single '.' character in UTF-16 +var dot = Buffer.from('//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 = Buffer.allocUnsafe(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!'); +} + +// Regression test for https://github.com/nodejs/node/issues/3496. +// assert.equal(Buffer.from('=bad'.repeat(1e4), 'base64').length, 0); + +{ + // Creating buffers larger than pool size. + var l = Buffer.poolSize + 5; + var s = ''; + for (var i = 0; i < l; i++) { + s += 'h'; + } + + var b = Buffer.from(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 = Buffer.from('abcde'); + assert.equal('bcde', b.slice(1).toString()); +} + +// slice(0,0).length === 0 +assert.equal(0, Buffer.from('hello').slice(0, 0).length); + +// test hex toString +// console.log('Create hex string from buffer'); +var hexb = Buffer.allocUnsafe(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 = Buffer.from(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 = Buffer.from([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.allocUnsafe(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.from('hello').slice(0, 0).length); + +['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { + var b = Buffer.allocUnsafe(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.from([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]); +} + +{ + // #1210 Test UTF-8 string includes null character + var buf = Buffer.from('\0'); + assert.equal(buf.length, 1); + buf = Buffer.from('\0\0'); + assert.equal(buf.length, 2); +} + +{ + var buf = Buffer.allocUnsafe(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 = Buffer.allocUnsafe(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 = Buffer.allocUnsafe(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 = Buffer.allocUnsafe(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 = Buffer.from('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 = Buffer.from([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); +} + +// 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.equal(Buffer.allocUnsafe(NaN).length, 0); +assert.equal(Buffer.allocUnsafe(3.3).length, 3); +assert.equal(Buffer.from({length: 3.3}).length, 3); +assert.equal(Buffer.from({length: 'BAM'}).length, 0); + +// Make sure that strings are not coerced to numbers. +assert.equal(Buffer.from('99').length, 2); +assert.equal(Buffer.from('13.37').length, 5); + +// Ensure that the length argument is respected. +'ascii utf8 hex base64 latin1'.split(' ').forEach(function(enc) { + assert.equal(Buffer.allocUnsafe(1).write('aaaaaa', 0, 1, enc), 1); +}); + +{ + // Regression test, guard against buffer overrun in the base64 decoder. + var a = Buffer.allocUnsafe(3); + var b = Buffer.from('xxx'); + a.write('aaaaaaaa', 'base64'); + assert.equal(b.toString(), 'xxx'); +} + +// issue GH-3416 +Buffer.from(Buffer.allocUnsafe(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', + false, + NaN, + {}, + Infinity, + [], + 1, + 0, + -1 ].forEach(function(enc) { + assert.equal(Buffer.isEncoding(enc), false); + }); + + +// GH-5110 +{ + var buffer = Buffer.from('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' + ? Buffer.from(value.data) + : value; + })); +} + +// issue GH-7849 +{ + var buf = Buffer.from('test'); + var json = JSON.stringify(buf); + var obj = JSON.parse(json); + var copy = Buffer.from(obj); + + assert(buf.equals(copy)); +} + +// issue GH-4331 +assert.throws(function() { + Buffer.allocUnsafe(0xFFFFFFFF); +}, RangeError); +assert.throws(function() { + Buffer.allocUnsafe(0xFFFFFFFFF); +}, RangeError); + + +// attempt to overflow buffers, similar to previous bug in array buffers +assert.throws(function() { + var buf = Buffer.allocUnsafe(8); + buf.readFloatLE(0xffffffff); +}, RangeError); + +assert.throws(function() { + var buf = Buffer.allocUnsafe(8); + buf.writeFloatLE(0.0, 0xffffffff); +}, RangeError); + +assert.throws(function() { + var buf = Buffer.allocUnsafe(8); + buf.readFloatLE(0xffffffff); +}, RangeError); + +assert.throws(function() { + var buf = Buffer.allocUnsafe(8); + buf.writeFloatLE(0.0, 0xffffffff); +}, RangeError); + + +// ensure negative values can't get past offset +assert.throws(function() { + var buf = Buffer.allocUnsafe(8); + buf.readFloatLE(-1); +}, RangeError); + +assert.throws(function() { + var buf = Buffer.allocUnsafe(8); + buf.writeFloatLE(0.0, -1); +}, RangeError); + +assert.throws(function() { + var buf = Buffer.allocUnsafe(8); + buf.readFloatLE(-1); +}, RangeError); + +assert.throws(function() { + var buf = Buffer.allocUnsafe(8); + buf.writeFloatLE(0.0, -1); +}, RangeError); + +// offset checks +{ + var buf = Buffer.allocUnsafe(0); + + assert.throws(function() { buf.readUInt8(0); }, RangeError); + assert.throws(function() { buf.readInt8(0); }, RangeError); +} + +{ + var buf = Buffer.from([0xFF]); + + assert.equal(buf.readUInt8(0), 255); + assert.equal(buf.readInt8(0), -1); +} + +[16, 32].forEach(function(bits) { + var buf = Buffer.allocUnsafe(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 = Buffer.from([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 = Buffer.from([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.allocUnsafe(3); + buf.writeUIntLE(0x123456, 0, 3); + assert.deepStrictEqual(buf.toJSON().data, [0x56, 0x34, 0x12]); + assert.equal(buf.readUIntLE(0, 3), 0x123456); + + buf = Buffer.allocUnsafe(3); + buf.writeUIntBE(0x123456, 0, 3); + assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56]); + assert.equal(buf.readUIntBE(0, 3), 0x123456); + + buf = Buffer.allocUnsafe(3); + buf.writeIntLE(0x123456, 0, 3); + assert.deepStrictEqual(buf.toJSON().data, [0x56, 0x34, 0x12]); + assert.equal(buf.readIntLE(0, 3), 0x123456); + + buf = Buffer.allocUnsafe(3); + buf.writeIntBE(0x123456, 0, 3); + assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56]); + assert.equal(buf.readIntBE(0, 3), 0x123456); + + buf = Buffer.allocUnsafe(3); + buf.writeIntLE(-0x123456, 0, 3); + assert.deepStrictEqual(buf.toJSON().data, [0xaa, 0xcb, 0xed]); + assert.equal(buf.readIntLE(0, 3), -0x123456); + + buf = Buffer.allocUnsafe(3); + buf.writeIntBE(-0x123456, 0, 3); + assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcb, 0xaa]); + assert.equal(buf.readIntBE(0, 3), -0x123456); + + buf = Buffer.allocUnsafe(3); + buf.writeIntLE(-0x123400, 0, 3); + assert.deepStrictEqual(buf.toJSON().data, [0x00, 0xcc, 0xed]); + assert.equal(buf.readIntLE(0, 3), -0x123400); + + buf = Buffer.allocUnsafe(3); + buf.writeIntBE(-0x123400, 0, 3); + assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcc, 0x00]); + assert.equal(buf.readIntBE(0, 3), -0x123400); + + buf = Buffer.allocUnsafe(3); + buf.writeIntLE(-0x120000, 0, 3); + assert.deepStrictEqual(buf.toJSON().data, [0x00, 0x00, 0xee]); + assert.equal(buf.readIntLE(0, 3), -0x120000); + + buf = Buffer.allocUnsafe(3); + buf.writeIntBE(-0x120000, 0, 3); + assert.deepStrictEqual(buf.toJSON().data, [0xee, 0x00, 0x00]); + assert.equal(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.equal(buf.readUIntLE(0, 5), 0x1234567890); + + buf = Buffer.allocUnsafe(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.allocUnsafe(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.allocUnsafe(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.allocUnsafe(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.allocUnsafe(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.allocUnsafe(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.allocUnsafe(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 = Buffer.from('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 = Buffer.from('0123456789', 'utf16le'); + // assert.deepStrictEqual(utf16Buf.slice(0, 6), Buffer.from('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 + Buffer.alloc(0).slice(0, 1); +} + +// Regression test for #5482: should throw but not assert in C++ land. +assert.throws(function() { + Buffer.from('', '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.from(a); + var c = Buffer.from(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() { + Buffer.allocUnsafe((-1 >>> 0) + 1); +}, RangeError); + +assert.throws(function() { + Buffer.allocUnsafeSlow((-1 >>> 0) + 1); +}, RangeError); + +if (common.hasCrypto) { + // Test truncation after decode + var crypto = require('crypto'); + + var b1 = Buffer.from('YW55=======', 'base64'); + var b2 = Buffer.from('YW55', 'base64'); + + assert.equal( + crypto.createHash('sha1').update(b1).digest('hex'), + crypto.createHash('sha1').update(b2).digest('hex') + ); +} else { + common.skip('missing crypto'); +} + +// Test Compare +{ + var b = Buffer.alloc(1, 'a'); + var c = Buffer.alloc(1, 'c'); + var d = Buffer.alloc(2, '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.alloc(0), Buffer.alloc(0)), 0); + assert.equal(Buffer.compare(Buffer.alloc(0), Buffer.alloc(1)), -1); + assert.equal(Buffer.compare(Buffer.alloc(1), Buffer.alloc(0)), 1); +} + +assert.throws(function() { + var b = Buffer.allocUnsafe(1); + Buffer.compare(b, 'abc'); +}); + +assert.throws(function() { + var b = Buffer.allocUnsafe(1); + Buffer.compare('abc', b); +}); + +assert.throws(function() { + var b = Buffer.allocUnsafe(1); + b.compare('abc'); +}); + +// Test Equals +{ + var b = Buffer.alloc(5, 'abcdf'); + var c = Buffer.alloc(5, 'abcdf'); + var d = Buffer.alloc(5, 'abcde'); + var e = Buffer.alloc(6, '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.allocUnsafe(1); + b.equals('abc'); +}); + +// Regression test for https://github.com/nodejs/node/issues/649. +assert.throws(() => { Buffer.allocUnsafe(1422561062959).toString('utf8');}); + +var ps = Buffer.poolSize; +Buffer.poolSize = 0; +assert.equal(Buffer.allocUnsafe(1).parent, undefined); +Buffer.poolSize = ps; + +// Test Buffer.copy() segfault +assert.throws(function() { + Buffer.allocUnsafe(10).copy(); +}); + +var regErrorMsg = new RegExp('First argument must be a string, Buffer, ' + + 'ArrayBuffer, Array, or array-like object.'); + +assert.throws(function() { + Buffer.from(); +}, regErrorMsg); + +assert.throws(function() { + Buffer.from(null); +}, regErrorMsg); + + +// Test that ParseArrayIndex handles full uint32 +assert.throws(function() { + Buffer.from(new ArrayBuffer(0), -1 >>> 0); +}, /RangeError: 'offset' is out of bounds/); + +// ParseArrayIndex() should reject values that don't fit in a 32 bits size_t. +assert.throws(() => { + var a = Buffer(1).fill(0); + var b = Buffer(1).fill(0); + a.copy(b, 0, 0x100000000, 0x100000001); +}), /out of range index/; + +// Unpooled buffer (replaces SlowBuffer) +var ubuf = Buffer.allocUnsafeSlow(10); +assert(ubuf); +assert(ubuf.buffer); +assert.equal(ubuf.buffer.byteLength, 10); + +// Regression test +assert.doesNotThrow(() => { + Buffer.from(new ArrayBuffer()); +}); + +assert.throws(() => Buffer.alloc(-Buffer.poolSize), + '"size" argument must not be negative'); +assert.throws(() => Buffer.alloc(-100), + '"size" argument must not be negative'); +assert.throws(() => Buffer.allocUnsafe(-Buffer.poolSize), + '"size" argument must not be negative'); +assert.throws(() => Buffer.allocUnsafe(-100), + '"size" argument must not be negative'); +assert.throws(() => Buffer.allocUnsafeSlow(-Buffer.poolSize), + '"size" argument must not be negative'); +assert.throws(() => Buffer.allocUnsafeSlow(-100), + '"size" argument must not be negative'); + +assert.throws(() => Buffer.alloc({ valueOf: () => 1 }), + /"size" argument must be a number/); +assert.throws(() => Buffer.alloc({ valueOf: () => -1 }), + /"size" argument must be a number/); + diff --git a/node_modules/buffer/test/node/test-buffer-arraybuffer.js b/node_modules/buffer/test/node/test-buffer-arraybuffer.js new file mode 100644 index 0000000..a418752 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-arraybuffer.js @@ -0,0 +1,112 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + + +var assert = require('assert'); + +var Buffer = require('../../').Buffer; +var LENGTH = 16; + +var ab = new ArrayBuffer(LENGTH); +var dv = new DataView(ab); +var ui = new Uint8Array(ab); +var buf = Buffer.from(ab); + + +assert.ok(buf instanceof Buffer); +// For backwards compatibility of old .parent property test that if buf is not +// a slice then .parent should be undefined. +assert.equal(buf.parent, undefined); +assert.equal(buf.buffer, ab); +assert.equal(buf.length, ab.byteLength); + + +buf.fill(0xC); +for (var i = 0; i < LENGTH; i++) { + assert.equal(ui[i], 0xC); + ui[i] = 0xF; + assert.equal(buf[i], 0xF); +} + +buf.writeUInt32LE(0xF00, 0); +buf.writeUInt32BE(0xB47, 4); +buf.writeDoubleLE(3.1415, 8); + +assert.equal(dv.getUint32(0, true), 0xF00); +assert.equal(dv.getUint32(4), 0xB47); +assert.equal(dv.getFloat64(8, true), 3.1415); + + +// Now test protecting users from doing stupid things + +assert.throws(function() { + function AB() { } + Object.setPrototypeOf(AB, ArrayBuffer); + Object.setPrototypeOf(AB.prototype, ArrayBuffer.prototype); + Buffer.from(new AB()); +}, TypeError); + +// write{Double,Float}{LE,BE} with noAssert should not crash, cf. #3766 +var b = Buffer.allocUnsafe(1); +b.writeFloatLE(11.11, 0, true); +b.writeFloatBE(11.11, 0, true); +b.writeDoubleLE(11.11, 0, true); +b.writeDoubleBE(11.11, 0, true); + +// Test the byteOffset and length arguments +{ + var ab = new Uint8Array(5); + ab[0] = 1; + ab[1] = 2; + ab[2] = 3; + ab[3] = 4; + ab[4] = 5; + var buf = Buffer.from(ab.buffer, 1, 3); + assert.equal(buf.length, 3); + assert.equal(buf[0], 2); + assert.equal(buf[1], 3); + assert.equal(buf[2], 4); + buf[0] = 9; + assert.equal(ab[1], 9); + + assert.throws(() => Buffer.from(ab.buffer, 6), (err) => { + assert(err instanceof RangeError); + assert(/'offset' is out of bounds/.test(err.message)); + return true; + }); + assert.throws(() => Buffer.from(ab.buffer, 3, 6), (err) => { + assert(err instanceof RangeError); + assert(/'length' is out of bounds/.test(err.message)); + return true; + }); +} + +// Test the deprecated Buffer() version also +{ + var ab = new Uint8Array(5); + ab[0] = 1; + ab[1] = 2; + ab[2] = 3; + ab[3] = 4; + ab[4] = 5; + var buf = Buffer(ab.buffer, 1, 3); + assert.equal(buf.length, 3); + assert.equal(buf[0], 2); + assert.equal(buf[1], 3); + assert.equal(buf[2], 4); + buf[0] = 9; + assert.equal(ab[1], 9); + + assert.throws(() => Buffer(ab.buffer, 6), (err) => { + assert(err instanceof RangeError); + assert(/'offset' is out of bounds/.test(err.message)); + return true; + }); + assert.throws(() => Buffer(ab.buffer, 3, 6), (err) => { + assert(err instanceof RangeError); + assert(/'length' is out of bounds/.test(err.message)); + return true; + }); +} + diff --git a/node_modules/buffer/test/node/test-buffer-ascii.js b/node_modules/buffer/test/node/test-buffer-ascii.js new file mode 100644 index 0000000..4a06098 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-ascii.js @@ -0,0 +1,28 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + +var assert = require('assert'); + +// ASCII conversion in node.js simply masks off the high bits, +// it doesn't do transliteration. +assert.equal(Buffer.from('hérité').toString('ascii'), 'hC)ritC)'); + +// 71 characters, 78 bytes. The ’ character is a triple-byte sequence. +var input = 'C’est, graphiquement, la réunion d’un accent aigu ' + + 'et d’un accent grave.'; + +var expected = 'Cb\u0000\u0019est, graphiquement, la rC)union ' + + 'db\u0000\u0019un accent aigu et db\u0000\u0019un ' + + 'accent grave.'; + +var buf = Buffer.from(input); + +for (var i = 0; i < expected.length; ++i) { + assert.equal(buf.slice(i).toString('ascii'), expected.slice(i)); + + // Skip remainder of multi-byte sequence. + if (input.charCodeAt(i) > 65535) ++i; + if (input.charCodeAt(i) > 127) ++i; +} + diff --git a/node_modules/buffer/test/node/test-buffer-bad-overload.js b/node_modules/buffer/test/node/test-buffer-bad-overload.js new file mode 100644 index 0000000..282227d --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-bad-overload.js @@ -0,0 +1,18 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + +var assert = require('assert'); + +assert.doesNotThrow(function() { + Buffer.allocUnsafe(10); +}); + +assert.throws(function() { + Buffer.from(10, 'hex'); +}); + +assert.doesNotThrow(function() { + Buffer.from('deadbeaf', 'hex'); +}); + diff --git a/node_modules/buffer/test/node/test-buffer-badhex.js b/node_modules/buffer/test/node/test-buffer-badhex.js new file mode 100644 index 0000000..fd7851d --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-badhex.js @@ -0,0 +1,46 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + +var assert = require('assert'); +var Buffer = require('../../').Buffer; + +// Test hex strings and bad hex strings +{ + var buf1 = Buffer.alloc(4); + assert.strictEqual(buf1.length, 4); + assert.deepStrictEqual(buf1, new Buffer([0, 0, 0, 0])); + assert.strictEqual(buf1.write('abcdxx', 0, 'hex'), 2); + assert.deepStrictEqual(buf1, new Buffer([0xab, 0xcd, 0x00, 0x00])); + assert.strictEqual(buf1.toString('hex'), 'abcd0000'); + assert.strictEqual(buf1.write('abcdef01', 0, 'hex'), 4); + assert.deepStrictEqual(buf1, new Buffer([0xab, 0xcd, 0xef, 0x01])); + assert.strictEqual(buf1.toString('hex'), 'abcdef01'); + + var buf2 = Buffer.from(buf1.toString('hex'), 'hex'); + assert.strictEqual(buf1.toString('hex'), buf2.toString('hex')); + + var buf3 = Buffer.alloc(5); + assert.strictEqual(buf3.write('abcdxx', 1, 'hex'), 2); + assert.strictEqual(buf3.toString('hex'), '00abcd0000'); + + var buf4 = Buffer.alloc(4); + assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0])); + assert.strictEqual(buf4.write('xxabcd', 0, 'hex'), 0); + assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0])); + assert.strictEqual(buf4.write('xxab', 1, 'hex'), 0); + assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0])); + assert.strictEqual(buf4.write('cdxxab', 0, 'hex'), 1); + assert.deepStrictEqual(buf4, new Buffer([0xcd, 0, 0, 0])); + + var buf5 = Buffer.alloc(256); + for (var i = 0; i < 256; i++) + buf5[i] = i; + + var hex = buf5.toString('hex'); + assert.deepStrictEqual(Buffer.from(hex, 'hex'), buf5); + + var badHex = hex.slice(0, 256) + 'xx' + hex.slice(256, 510); + assert.deepStrictEqual(Buffer.from(badHex, 'hex'), buf5.slice(0, 128)); +} + diff --git a/node_modules/buffer/test/node/test-buffer-bytelength.js b/node_modules/buffer/test/node/test-buffer-bytelength.js new file mode 100644 index 0000000..8d7dc35 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-bytelength.js @@ -0,0 +1,90 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + + +var assert = require('assert'); +var Buffer = require('../../').Buffer; +var SlowBuffer = require('../../').SlowBuffer; + +// coerce values to string +assert.equal(Buffer.byteLength(32, 'latin1'), 2); +assert.equal(Buffer.byteLength(NaN, 'utf8'), 3); +assert.equal(Buffer.byteLength({}, 'latin1'), 15); +assert.equal(Buffer.byteLength(), 9); + +var buff = new Buffer(10); +assert(ArrayBuffer.isView(buff)); +var slowbuff = new SlowBuffer(10); +assert(ArrayBuffer.isView(slowbuff)); + +// buffer +var incomplete = Buffer.from([0xe4, 0xb8, 0xad, 0xe6, 0x96]); +assert.equal(Buffer.byteLength(incomplete), 5); +var ascii = Buffer.from('abc'); +assert.equal(Buffer.byteLength(ascii), 3); + +// ArrayBuffer +var buffer = new ArrayBuffer(8); +assert.equal(Buffer.byteLength(buffer), 8); + +// TypedArray +var int8 = new Int8Array(8); +assert.equal(Buffer.byteLength(int8), 8); +var uint8 = new Uint8Array(8); +assert.equal(Buffer.byteLength(uint8), 8); +var uintc8 = new Uint8ClampedArray(2); +assert.equal(Buffer.byteLength(uintc8), 2); +var int16 = new Int16Array(8); +assert.equal(Buffer.byteLength(int16), 16); +var uint16 = new Uint16Array(8); +assert.equal(Buffer.byteLength(uint16), 16); +var int32 = new Int32Array(8); +assert.equal(Buffer.byteLength(int32), 32); +var uint32 = new Uint32Array(8); +assert.equal(Buffer.byteLength(uint32), 32); +var float32 = new Float32Array(8); +assert.equal(Buffer.byteLength(float32), 32); +var float64 = new Float64Array(8); +assert.equal(Buffer.byteLength(float64), 64); + +// DataView +var dv = new DataView(new ArrayBuffer(2)); +assert.equal(Buffer.byteLength(dv), 2); + +// special case: zero length string +assert.equal(Buffer.byteLength('', 'ascii'), 0); +assert.equal(Buffer.byteLength('', 'HeX'), 0); + +// utf8 +assert.equal(Buffer.byteLength('∑éllö wørl∂!', 'utf-8'), 19); +assert.equal(Buffer.byteLength('κλμνξο', 'utf8'), 12); +assert.equal(Buffer.byteLength('挵挶挷挸挹', 'utf-8'), 15); +assert.equal(Buffer.byteLength('𠝹𠱓𠱸', 'UTF8'), 12); +// without an encoding, utf8 should be assumed +assert.equal(Buffer.byteLength('hey there'), 9); +assert.equal(Buffer.byteLength('𠱸挶νξ#xx :)'), 17); +assert.equal(Buffer.byteLength('hello world', ''), 11); +// it should also be assumed with unrecognized encoding +assert.equal(Buffer.byteLength('hello world', 'abc'), 11); +assert.equal(Buffer.byteLength('ßœ∑≈', 'unkn0wn enc0ding'), 10); + +// base64 +assert.equal(Buffer.byteLength('aGVsbG8gd29ybGQ=', 'base64'), 11); +assert.equal(Buffer.byteLength('bm9kZS5qcyByb2NrcyE=', 'base64'), 14); +assert.equal(Buffer.byteLength('aGkk', 'base64'), 3); +assert.equal(Buffer.byteLength('bHNrZGZsa3NqZmtsc2xrZmFqc2RsZmtqcw==', + 'base64'), 25); +// special padding +assert.equal(Buffer.byteLength('aaa=', 'base64'), 2); +assert.equal(Buffer.byteLength('aaaa==', 'base64'), 3); + +assert.equal(Buffer.byteLength('Il était tué'), 14); +assert.equal(Buffer.byteLength('Il était tué', 'utf8'), 14); +assert.equal(Buffer.byteLength('Il était tué', 'ascii'), 12); +assert.equal(Buffer.byteLength('Il était tué', 'latin1'), 12); +assert.equal(Buffer.byteLength('Il était tué', 'binary'), 12); +['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { + assert.equal(24, Buffer.byteLength('Il était tué', encoding)); +}); + diff --git a/node_modules/buffer/test/node/test-buffer-compare-offset.js b/node_modules/buffer/test/node/test-buffer-compare-offset.js new file mode 100644 index 0000000..f1984ed --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-compare-offset.js @@ -0,0 +1,66 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + + +var assert = require('assert'); + +var a = Buffer.from([1, 2, 3, 4, 5, 6, 7, 8, 9, 0]); +var b = Buffer.from([5, 6, 7, 8, 9, 0, 1, 2, 3, 4]); + +assert.equal(-1, a.compare(b)); + +// Equivalent to a.compare(b). +assert.equal(-1, a.compare(b, 0)); +assert.equal(-1, a.compare(b, '0')); + +// Equivalent to a.compare(b). +assert.equal(-1, a.compare(b, 0, undefined, 0)); + +// Zero-length targer, return 1 +assert.equal(1, a.compare(b, 0, 0, 0)); +assert.equal(1, a.compare(b, '0', '0', '0')); + +// Equivalent to Buffer.compare(a, b.slice(6, 10)) +assert.equal(1, a.compare(b, 6, 10)); + +// Zero-length source, return -1 +assert.equal(-1, a.compare(b, 6, 10, 0, 0)); + +// Equivalent to Buffer.compare(a.slice(4), b.slice(0, 5)) +assert.equal(1, a.compare(b, 0, 5, 4)); + +// Equivalent to Buffer.compare(a.slice(1), b.slice(5)) +assert.equal(1, a.compare(b, 5, undefined, 1)); + +// Equivalent to Buffer.compare(a.slice(2), b.slice(2, 4)) +assert.equal(-1, a.compare(b, 2, 4, 2)); + +// Equivalent to Buffer.compare(a.slice(4), b.slice(0, 7)) +assert.equal(-1, a.compare(b, 0, 7, 4)); + +// Equivalent to Buffer.compare(a.slice(4, 6), b.slice(0, 7)); +assert.equal(-1, a.compare(b, 0, 7, 4, 6)); + +// zero length target +assert.equal(1, a.compare(b, 0, null)); + +// coerces to targetEnd == 5 +assert.equal(-1, a.compare(b, 0, {valueOf: () => 5})); + +// zero length target +assert.equal(1, a.compare(b, Infinity, -Infinity)); + +// zero length target because default for targetEnd <= targetSource +assert.equal(1, a.compare(b, '0xff')); + +var oor = /out of range index/; + +assert.throws(() => a.compare(b, 0, 100, 0), oor); +assert.throws(() => a.compare(b, 0, 1, 0, 100), oor); +assert.throws(() => a.compare(b, -1), oor); +assert.throws(() => a.compare(b, 0, '0xff'), oor); +assert.throws(() => a.compare(b, 0, Infinity), oor); +assert.throws(() => a.compare(b, -Infinity, Infinity), oor); +assert.throws(() => a.compare(), /Argument must be a Buffer/); + diff --git a/node_modules/buffer/test/node/test-buffer-concat.js b/node_modules/buffer/test/node/test-buffer-concat.js new file mode 100644 index 0000000..c0dc4da --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-concat.js @@ -0,0 +1,40 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + +var assert = require('assert'); + +var zero = []; +var one = [ Buffer.from('asdf') ]; +var long = []; +for (var i = 0; i < 10; i++) long.push(Buffer.from('asdf')); + +var flatZero = Buffer.concat(zero); +var flatOne = Buffer.concat(one); +var flatLong = Buffer.concat(long); +var flatLongLen = Buffer.concat(long, 40); + +assert(flatZero.length === 0); +assert(flatOne.toString() === 'asdf'); +// A special case where concat used to return the first item, +// if the length is one. This check is to make sure that we don't do that. +assert(flatOne !== one[0]); +assert(flatLong.toString() === (new Array(10 + 1).join('asdf'))); +assert(flatLongLen.toString() === (new Array(10 + 1).join('asdf'))); + +assertWrongList(); +assertWrongList(null); +assertWrongList(Buffer.from('hello')); +assertWrongList([42]); +assertWrongList(['hello', 'world']); +assertWrongList(['hello', Buffer.from('world')]); + +function assertWrongList(value) { + assert.throws(function() { + Buffer.concat(value); + }, function(err) { + return err instanceof TypeError && + err.message === '"list" argument must be an Array of Buffers'; + }); +} + diff --git a/node_modules/buffer/test/node/test-buffer-fill.js b/node_modules/buffer/test/node/test-buffer-fill.js new file mode 100644 index 0000000..7138094 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-fill.js @@ -0,0 +1,272 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + + +var assert = require('assert'); +var os = require('os'); +var SIZE = 28; + +var buf1 = Buffer.allocUnsafe(SIZE); +var buf2 = Buffer.allocUnsafe(SIZE); + + +// Default encoding +testBufs('abc'); +testBufs('\u0222aa'); +testBufs('a\u0234b\u0235c\u0236'); +testBufs('abc', 4); +testBufs('abc', 5); +testBufs('abc', SIZE); +testBufs('\u0222aa', 2); +testBufs('\u0222aa', 8); +testBufs('a\u0234b\u0235c\u0236', 4); +testBufs('a\u0234b\u0235c\u0236', 12); +testBufs('abc', 4, -1); +testBufs('abc', 4, 1); +testBufs('abc', 5, 1); +testBufs('\u0222aa', 2, -1); +testBufs('\u0222aa', 8, 1); +testBufs('a\u0234b\u0235c\u0236', 4, -1); +testBufs('a\u0234b\u0235c\u0236', 4, 1); +testBufs('a\u0234b\u0235c\u0236', 12, 1); + + +// UTF8 +testBufs('abc', 'utf8'); +testBufs('\u0222aa', 'utf8'); +testBufs('a\u0234b\u0235c\u0236', 'utf8'); +testBufs('abc', 4, 'utf8'); +testBufs('abc', 5, 'utf8'); +testBufs('abc', SIZE, 'utf8'); +testBufs('\u0222aa', 2, 'utf8'); +testBufs('\u0222aa', 8, 'utf8'); +testBufs('a\u0234b\u0235c\u0236', 4, 'utf8'); +testBufs('a\u0234b\u0235c\u0236', 12, 'utf8'); +testBufs('abc', 4, -1, 'utf8'); +testBufs('abc', 4, 1, 'utf8'); +testBufs('abc', 5, 1, 'utf8'); +testBufs('\u0222aa', 2, -1, 'utf8'); +testBufs('\u0222aa', 8, 1, 'utf8'); +testBufs('a\u0234b\u0235c\u0236', 4, -1, 'utf8'); +testBufs('a\u0234b\u0235c\u0236', 4, 1, 'utf8'); +testBufs('a\u0234b\u0235c\u0236', 12, 1, 'utf8'); +assert.equal(Buffer.allocUnsafe(1).fill(0).fill('\u0222')[0], 0xc8); + + +// BINARY +testBufs('abc', 'binary'); +testBufs('\u0222aa', 'binary'); +testBufs('a\u0234b\u0235c\u0236', 'binary'); +testBufs('abc', 4, 'binary'); +testBufs('abc', 5, 'binary'); +testBufs('abc', SIZE, 'binary'); +testBufs('\u0222aa', 2, 'binary'); +testBufs('\u0222aa', 8, 'binary'); +testBufs('a\u0234b\u0235c\u0236', 4, 'binary'); +testBufs('a\u0234b\u0235c\u0236', 12, 'binary'); +testBufs('abc', 4, -1, 'binary'); +testBufs('abc', 4, 1, 'binary'); +testBufs('abc', 5, 1, 'binary'); +testBufs('\u0222aa', 2, -1, 'binary'); +testBufs('\u0222aa', 8, 1, 'binary'); +testBufs('a\u0234b\u0235c\u0236', 4, -1, 'binary'); +testBufs('a\u0234b\u0235c\u0236', 4, 1, 'binary'); +testBufs('a\u0234b\u0235c\u0236', 12, 1, 'binary'); + + +// LATIN1 +testBufs('abc', 'latin1'); +testBufs('\u0222aa', 'latin1'); +testBufs('a\u0234b\u0235c\u0236', 'latin1'); +testBufs('abc', 4, 'latin1'); +testBufs('abc', 5, 'latin1'); +testBufs('abc', SIZE, 'latin1'); +testBufs('\u0222aa', 2, 'latin1'); +testBufs('\u0222aa', 8, 'latin1'); +testBufs('a\u0234b\u0235c\u0236', 4, 'latin1'); +testBufs('a\u0234b\u0235c\u0236', 12, 'latin1'); +testBufs('abc', 4, -1, 'latin1'); +testBufs('abc', 4, 1, 'latin1'); +testBufs('abc', 5, 1, 'latin1'); +testBufs('\u0222aa', 2, -1, 'latin1'); +testBufs('\u0222aa', 8, 1, 'latin1'); +testBufs('a\u0234b\u0235c\u0236', 4, -1, 'latin1'); +testBufs('a\u0234b\u0235c\u0236', 4, 1, 'latin1'); +testBufs('a\u0234b\u0235c\u0236', 12, 1, 'latin1'); + + +// UCS2 +testBufs('abc', 'ucs2'); +testBufs('\u0222aa', 'ucs2'); +testBufs('a\u0234b\u0235c\u0236', 'ucs2'); +testBufs('abc', 4, 'ucs2'); +testBufs('abc', SIZE, 'ucs2'); +testBufs('\u0222aa', 2, 'ucs2'); +testBufs('\u0222aa', 8, 'ucs2'); +testBufs('a\u0234b\u0235c\u0236', 4, 'ucs2'); +testBufs('a\u0234b\u0235c\u0236', 12, 'ucs2'); +testBufs('abc', 4, -1, 'ucs2'); +testBufs('abc', 4, 1, 'ucs2'); +testBufs('abc', 5, 1, 'ucs2'); +testBufs('\u0222aa', 2, -1, 'ucs2'); +testBufs('\u0222aa', 8, 1, 'ucs2'); +testBufs('a\u0234b\u0235c\u0236', 4, -1, 'ucs2'); +testBufs('a\u0234b\u0235c\u0236', 4, 1, 'ucs2'); +testBufs('a\u0234b\u0235c\u0236', 12, 1, 'ucs2'); +assert.equal(Buffer.allocUnsafe(1).fill('\u0222', 'ucs2')[0], + os.endianness() === 'LE' ? 0x22 : 0x02); + + +// HEX +testBufs('616263', 'hex'); +testBufs('c8a26161', 'hex'); +testBufs('61c8b462c8b563c8b6', 'hex'); +testBufs('616263', 4, 'hex'); +testBufs('616263', 5, 'hex'); +testBufs('616263', SIZE, 'hex'); +testBufs('c8a26161', 2, 'hex'); +testBufs('c8a26161', 8, 'hex'); +testBufs('61c8b462c8b563c8b6', 4, 'hex'); +testBufs('61c8b462c8b563c8b6', 12, 'hex'); +testBufs('616263', 4, -1, 'hex'); +testBufs('616263', 4, 1, 'hex'); +testBufs('616263', 5, 1, 'hex'); +testBufs('c8a26161', 2, -1, 'hex'); +testBufs('c8a26161', 8, 1, 'hex'); +testBufs('61c8b462c8b563c8b6', 4, -1, 'hex'); +testBufs('61c8b462c8b563c8b6', 4, 1, 'hex'); +testBufs('61c8b462c8b563c8b6', 12, 1, 'hex'); +// Make sure this operation doesn't go on forever +buf1.fill('yKJh', 'hex'); +assert.throws(() => buf1.fill('\u0222', 'hex')); + + +// BASE64 +testBufs('YWJj', 'ucs2'); +testBufs('yKJhYQ==', 'ucs2'); +testBufs('Yci0Ysi1Y8i2', 'ucs2'); +testBufs('YWJj', 4, 'ucs2'); +testBufs('YWJj', SIZE, 'ucs2'); +testBufs('yKJhYQ==', 2, 'ucs2'); +testBufs('yKJhYQ==', 8, 'ucs2'); +testBufs('Yci0Ysi1Y8i2', 4, 'ucs2'); +testBufs('Yci0Ysi1Y8i2', 12, 'ucs2'); +testBufs('YWJj', 4, -1, 'ucs2'); +testBufs('YWJj', 4, 1, 'ucs2'); +testBufs('YWJj', 5, 1, 'ucs2'); +testBufs('yKJhYQ==', 2, -1, 'ucs2'); +testBufs('yKJhYQ==', 8, 1, 'ucs2'); +testBufs('Yci0Ysi1Y8i2', 4, -1, 'ucs2'); +testBufs('Yci0Ysi1Y8i2', 4, 1, 'ucs2'); +testBufs('Yci0Ysi1Y8i2', 12, 1, 'ucs2'); + + +// Buffer +function deepStrictEqualValues(buf, arr) { + for (var [index, value] of buf.entries()) { + assert.deepStrictEqual(value, arr[index]); + } +} + + +var buf2Fill = Buffer.allocUnsafe(1).fill(2); +deepStrictEqualValues(genBuffer(4, [buf2Fill]), [2, 2, 2, 2]); +deepStrictEqualValues(genBuffer(4, [buf2Fill, 1]), [0, 2, 2, 2]); +deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, 3]), [0, 2, 2, 0]); +deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, 1]), [0, 0, 0, 0]); +deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, -1]), [0, 0, 0, 0]); +var hexBufFill = Buffer.allocUnsafe(2).fill(0).fill('0102', 'hex'); +deepStrictEqualValues(genBuffer(4, [hexBufFill]), [1, 2, 1, 2]); +deepStrictEqualValues(genBuffer(4, [hexBufFill, 1]), [0, 1, 2, 1]); +deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, 3]), [0, 1, 2, 0]); +deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, 1]), [0, 0, 0, 0]); +deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, -1]), [0, 0, 0, 0]); + + +// Check exceptions +assert.throws(() => buf1.fill(0, -1)); +assert.throws(() => buf1.fill(0, 0, buf1.length + 1)); +assert.throws(() => buf1.fill('', -1)); +assert.throws(() => buf1.fill('', 0, buf1.length + 1)); +assert.throws(() => buf1.fill('a', 0, buf1.length, 'node rocks!')); +assert.throws(() => buf1.fill('a', 0, 0, NaN)); +assert.throws(() => buf1.fill('a', 0, 0, null)); +assert.throws(() => buf1.fill('a', 0, 0, 'foo')); + + +function genBuffer(size, args) { + var b = Buffer.allocUnsafe(size); + return b.fill(0).fill.apply(b, args); +} + + +function bufReset() { + buf1.fill(0); + buf2.fill(0); +} + + +// This is mostly accurate. Except write() won't write partial bytes to the +// string while fill() blindly copies bytes into memory. To account for that an +// error will be thrown if not all the data can be written, and the SIZE has +// been massaged to work with the input characters. +function writeToFill(string, offset, end, encoding) { + if (typeof offset === 'string') { + encoding = offset; + offset = 0; + end = buf2.length; + } else if (typeof end === 'string') { + encoding = end; + end = buf2.length; + } else if (end === undefined) { + end = buf2.length; + } + + if (offset < 0 || end > buf2.length) + throw new RangeError('Out of range index'); + + if (end <= offset) + return buf2; + + offset >>>= 0; + end >>>= 0; + assert(offset <= buf2.length); + + // Convert "end" to "length" (which write understands). + var length = end - offset < 0 ? 0 : end - offset; + + var wasZero = false; + do { + var written = buf2.write(string, offset, length, encoding); + offset += written; + // Safety check in case write falls into infinite loop. + if (written === 0) { + if (wasZero) + throw new Error('Could not write all data to Buffer'); + else + wasZero = true; + } + } while (offset < buf2.length); + + // Correction for UCS2 operations. + if (os.endianness() === 'BE' && encoding === 'ucs2') { + for (var i = 0; i < buf2.length; i += 2) { + var tmp = buf2[i]; + buf2[i] = buf2[i + 1]; + buf2[i + 1] = tmp; + } + } + + return buf2; +} + + +function testBufs(string, offset, length, encoding) { + bufReset(); + buf1.fill.apply(buf1, arguments); + // Swap bytes on BE archs for ucs2 encoding. + assert.deepStrictEqual(buf1.fill.apply(buf1, arguments), + writeToFill.apply(null, arguments)); +} + diff --git a/node_modules/buffer/test/node/test-buffer-includes.js b/node_modules/buffer/test/node/test-buffer-includes.js new file mode 100644 index 0000000..2096a34 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-includes.js @@ -0,0 +1,305 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + +var assert = require('assert'); + +var Buffer = require('../../').Buffer; + +var b = Buffer.from('abcdef'); +var buf_a = Buffer.from('a'); +var buf_bc = Buffer.from('bc'); +var buf_f = Buffer.from('f'); +var buf_z = Buffer.from('z'); +var buf_empty = Buffer.from(''); + +assert(b.includes('a')); +assert(!b.includes('a', 1)); +assert(!b.includes('a', -1)); +assert(!b.includes('a', -4)); +assert(b.includes('a', -b.length)); +assert(b.includes('a', NaN)); +assert(b.includes('a', -Infinity)); +assert(!b.includes('a', Infinity)); +assert(b.includes('bc')); +assert(!b.includes('bc', 2)); +assert(!b.includes('bc', -1)); +assert(!b.includes('bc', -3)); +assert(b.includes('bc', -5)); +assert(b.includes('bc', NaN)); +assert(b.includes('bc', -Infinity)); +assert(!b.includes('bc', Infinity)); +assert(b.includes('f'), b.length - 1); +assert(!b.includes('z')); +assert(!b.includes('')); +assert(!b.includes('', 1)); +assert(!b.includes('', b.length + 1)); +assert(!b.includes('', Infinity)); +assert(b.includes(buf_a)); +assert(!b.includes(buf_a, 1)); +assert(!b.includes(buf_a, -1)); +assert(!b.includes(buf_a, -4)); +assert(b.includes(buf_a, -b.length)); +assert(b.includes(buf_a, NaN)); +assert(b.includes(buf_a, -Infinity)); +assert(!b.includes(buf_a, Infinity)); +assert(b.includes(buf_bc)); +assert(!b.includes(buf_bc, 2)); +assert(!b.includes(buf_bc, -1)); +assert(!b.includes(buf_bc, -3)); +assert(b.includes(buf_bc, -5)); +assert(b.includes(buf_bc, NaN)); +assert(b.includes(buf_bc, -Infinity)); +assert(!b.includes(buf_bc, Infinity)); +assert(b.includes(buf_f), b.length - 1); +assert(!b.includes(buf_z)); +assert(!b.includes(buf_empty)); +assert(!b.includes(buf_empty, 1)); +assert(!b.includes(buf_empty, b.length + 1)); +assert(!b.includes(buf_empty, Infinity)); +assert(b.includes(0x61)); +assert(!b.includes(0x61, 1)); +assert(!b.includes(0x61, -1)); +assert(!b.includes(0x61, -4)); +assert(b.includes(0x61, -b.length)); +assert(b.includes(0x61, NaN)); +assert(b.includes(0x61, -Infinity)); +assert(!b.includes(0x61, Infinity)); +assert(!b.includes(0x0)); + +// test offsets +assert(b.includes('d', 2)); +assert(b.includes('f', 5)); +assert(b.includes('f', -1)); +assert(!b.includes('f', 6)); + +assert(b.includes(Buffer.from('d'), 2)); +assert(b.includes(Buffer.from('f'), 5)); +assert(b.includes(Buffer.from('f'), -1)); +assert(!b.includes(Buffer.from('f'), 6)); + +assert(!Buffer.from('ff').includes(Buffer.from('f'), 1, 'ucs2')); + +// test hex encoding +assert.strictEqual( + Buffer.from(b.toString('hex'), 'hex') + .includes('64', 0, 'hex'), + true +); +assert.strictEqual( + Buffer.from(b.toString('hex'), 'hex') + .includes(Buffer.from('64', 'hex'), 0, 'hex'), + true +); + +// test base64 encoding +assert.strictEqual( + Buffer.from(b.toString('base64'), 'base64') + .includes('ZA==', 0, 'base64'), + true +); +assert.strictEqual( + Buffer.from(b.toString('base64'), 'base64') + .includes(Buffer.from('ZA==', 'base64'), 0, 'base64'), + true +); + +// test ascii encoding +assert.strictEqual( + Buffer.from(b.toString('ascii'), 'ascii') + .includes('d', 0, 'ascii'), + true +); +assert.strictEqual( + Buffer.from(b.toString('ascii'), 'ascii') + .includes(Buffer.from('d', 'ascii'), 0, 'ascii'), + true +); + +// test latin1 encoding +assert.strictEqual( + Buffer.from(b.toString('latin1'), 'latin1') + .includes('d', 0, 'latin1'), + true +); +assert.strictEqual( + Buffer.from(b.toString('latin1'), 'latin1') + .includes(Buffer.from('d', 'latin1'), 0, 'latin1'), + true +); + +// test binary encoding +assert.strictEqual( + Buffer.from(b.toString('binary'), 'binary') + .includes('d', 0, 'binary'), + true +); +assert.strictEqual( + Buffer.from(b.toString('binary'), 'binary') + .includes(Buffer.from('d', 'binary'), 0, 'binary'), + true +); + + +// test usc2 encoding +var twoByteString = Buffer.from('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2'); + +assert(twoByteString.includes('\u0395', 4, 'ucs2')); +assert(twoByteString.includes('\u03a3', -4, 'ucs2')); +assert(twoByteString.includes('\u03a3', -6, 'ucs2')); +assert(twoByteString.includes( + Buffer.from('\u03a3', 'ucs2'), -6, 'ucs2')); +assert(!twoByteString.includes('\u03a3', -2, 'ucs2')); + +var mixedByteStringUcs2 = + Buffer.from('\u039a\u0391abc\u03a3\u03a3\u0395', 'ucs2'); +assert(mixedByteStringUcs2.includes('bc', 0, 'ucs2')); +assert(mixedByteStringUcs2.includes('\u03a3', 0, 'ucs2')); +assert(!mixedByteStringUcs2.includes('\u0396', 0, 'ucs2')); + +assert( + 6, mixedByteStringUcs2.includes(Buffer.from('bc', 'ucs2'), 0, 'ucs2')); +assert( + 10, mixedByteStringUcs2.includes(Buffer.from('\u03a3', 'ucs2'), + 0, 'ucs2')); +assert( + -1, mixedByteStringUcs2.includes(Buffer.from('\u0396', 'ucs2'), + 0, 'ucs2')); + +twoByteString = Buffer.from('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2'); + +// Test single char pattern +assert(twoByteString.includes('\u039a', 0, 'ucs2')); +assert(twoByteString.includes('\u0391', 0, 'ucs2'), 'Alpha'); +assert(twoByteString.includes('\u03a3', 0, 'ucs2'), 'First Sigma'); +assert(twoByteString.includes('\u03a3', 6, 'ucs2'), 'Second Sigma'); +assert(twoByteString.includes('\u0395', 0, 'ucs2'), 'Epsilon'); +assert(!twoByteString.includes('\u0392', 0, 'ucs2'), 'Not beta'); + +// Test multi-char pattern +assert(twoByteString.includes('\u039a\u0391', 0, 'ucs2'), 'Lambda Alpha'); +assert(twoByteString.includes('\u0391\u03a3', 0, 'ucs2'), 'Alpha Sigma'); +assert(twoByteString.includes('\u03a3\u03a3', 0, 'ucs2'), 'Sigma Sigma'); +assert(twoByteString.includes('\u03a3\u0395', 0, 'ucs2'), 'Sigma Epsilon'); + +var mixedByteStringUtf8 = Buffer.from('\u039a\u0391abc\u03a3\u03a3\u0395'); +assert(mixedByteStringUtf8.includes('bc')); +assert(mixedByteStringUtf8.includes('bc', 5)); +assert(mixedByteStringUtf8.includes('bc', -8)); +assert(mixedByteStringUtf8.includes('\u03a3')); +assert(!mixedByteStringUtf8.includes('\u0396')); + + +// Test complex string includes algorithms. Only trigger for long strings. +// Long string that isn't a simple repeat of a shorter string. +var longString = 'A'; +for (var i = 66; i < 76; i++) { // from 'B' to 'K' + longString = longString + String.fromCharCode(i) + longString; +} + +var longBufferString = Buffer.from(longString); + +// pattern of 15 chars, repeated every 16 chars in long +var pattern = 'ABACABADABACABA'; +for (var i = 0; i < longBufferString.length - pattern.length; i += 7) { + var includes = longBufferString.includes(pattern, i); + assert(includes, 'Long ABACABA...-string at index ' + i); +} +assert(longBufferString.includes('AJABACA'), 'Long AJABACA, First J'); +assert(longBufferString.includes('AJABACA', 511), 'Long AJABACA, Second J'); + +pattern = 'JABACABADABACABA'; +assert(longBufferString.includes(pattern), 'Long JABACABA..., First J'); +assert(longBufferString.includes(pattern, 512), 'Long JABACABA..., Second J'); + +// Search for a non-ASCII string in a pure ASCII string. +var asciiString = Buffer.from( + 'arglebargleglopglyfarglebargleglopglyfarglebargleglopglyf'); +assert(!asciiString.includes('\x2061')); +assert(asciiString.includes('leb', 0)); + +// Search in string containing many non-ASCII chars. +var allCodePoints = []; +for (var i = 0; i < 65536; i++) allCodePoints[i] = i; +var allCharsString = String.fromCharCode.apply(String, allCodePoints); +var allCharsBufferUtf8 = Buffer.from(allCharsString); +var allCharsBufferUcs2 = Buffer.from(allCharsString, 'ucs2'); + +// Search for string long enough to trigger complex search with ASCII pattern +// and UC16 subject. +assert(!allCharsBufferUtf8.includes('notfound')); +assert(!allCharsBufferUcs2.includes('notfound')); + +// Find substrings in Utf8. +var lengths = [1, 3, 15]; // Single char, simple and complex. +var indices = [0x5, 0x60, 0x400, 0x680, 0x7ee, 0xFF02, 0x16610, 0x2f77b]; +for (var lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) { + for (var i = 0; i < indices.length; i++) { + var index = indices[i]; + var length = lengths[lengthIndex]; + + if (index + length > 0x7F) { + length = 2 * length; + } + + if (index + length > 0x7FF) { + length = 3 * length; + } + + if (index + length > 0xFFFF) { + length = 4 * length; + } + + var patternBufferUtf8 = allCharsBufferUtf8.slice(index, index + length); + assert(index, allCharsBufferUtf8.includes(patternBufferUtf8)); + + var patternStringUtf8 = patternBufferUtf8.toString(); + assert(index, allCharsBufferUtf8.includes(patternStringUtf8)); + } +} + +// Find substrings in Usc2. +lengths = [2, 4, 16]; // Single char, simple and complex. +indices = [0x5, 0x65, 0x105, 0x205, 0x285, 0x2005, 0x2085, 0xfff0]; +for (var lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) { + for (var i = 0; i < indices.length; i++) { + var index = indices[i] * 2; + var length = lengths[lengthIndex]; + + var patternBufferUcs2 = + allCharsBufferUcs2.slice(index, index + length); + assert( + index, allCharsBufferUcs2.includes(patternBufferUcs2, 0, 'ucs2')); + + var patternStringUcs2 = patternBufferUcs2.toString('ucs2'); + assert( + index, allCharsBufferUcs2.includes(patternStringUcs2, 0, 'ucs2')); + } +} + +assert.throws(function() { + b.includes(function() { }); +}); +assert.throws(function() { + b.includes({}); +}); +assert.throws(function() { + b.includes([]); +}); + +// test truncation of Number arguments to uint8 +{ + var buf = Buffer.from('this is a test'); + assert.ok(buf.includes(0x6973)); + assert.ok(buf.includes(0x697320)); + assert.ok(buf.includes(0x69732069)); + assert.ok(buf.includes(0x697374657374)); + assert.ok(buf.includes(0x69737374)); + assert.ok(buf.includes(0x69737465)); + assert.ok(buf.includes(0x69737465)); + assert.ok(buf.includes(-140)); + assert.ok(buf.includes(-152)); + assert.ok(!buf.includes(0xff)); + assert.ok(!buf.includes(0xffff)); +} + diff --git a/node_modules/buffer/test/node/test-buffer-indexof.js b/node_modules/buffer/test/node/test-buffer-indexof.js new file mode 100644 index 0000000..24502c3 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-indexof.js @@ -0,0 +1,523 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + +var assert = require('assert'); + +var Buffer = require('../../').Buffer; + +var b = Buffer.from('abcdef'); +var buf_a = Buffer.from('a'); +var buf_bc = Buffer.from('bc'); +var buf_f = Buffer.from('f'); +var buf_z = Buffer.from('z'); +var buf_empty = Buffer.from(''); + +assert.equal(b.indexOf('a'), 0); +assert.equal(b.indexOf('a', 1), -1); +assert.equal(b.indexOf('a', -1), -1); +assert.equal(b.indexOf('a', -4), -1); +assert.equal(b.indexOf('a', -b.length), 0); +assert.equal(b.indexOf('a', NaN), 0); +assert.equal(b.indexOf('a', -Infinity), 0); +assert.equal(b.indexOf('a', Infinity), -1); +assert.equal(b.indexOf('bc'), 1); +assert.equal(b.indexOf('bc', 2), -1); +assert.equal(b.indexOf('bc', -1), -1); +assert.equal(b.indexOf('bc', -3), -1); +assert.equal(b.indexOf('bc', -5), 1); +assert.equal(b.indexOf('bc', NaN), 1); +assert.equal(b.indexOf('bc', -Infinity), 1); +assert.equal(b.indexOf('bc', Infinity), -1); +assert.equal(b.indexOf('f'), b.length - 1); +assert.equal(b.indexOf('z'), -1); +assert.equal(b.indexOf(''), -1); +assert.equal(b.indexOf('', 1), -1); +assert.equal(b.indexOf('', b.length + 1), -1); +assert.equal(b.indexOf('', Infinity), -1); +assert.equal(b.indexOf(buf_a), 0); +assert.equal(b.indexOf(buf_a, 1), -1); +assert.equal(b.indexOf(buf_a, -1), -1); +assert.equal(b.indexOf(buf_a, -4), -1); +assert.equal(b.indexOf(buf_a, -b.length), 0); +assert.equal(b.indexOf(buf_a, NaN), 0); +assert.equal(b.indexOf(buf_a, -Infinity), 0); +assert.equal(b.indexOf(buf_a, Infinity), -1); +assert.equal(b.indexOf(buf_bc), 1); +assert.equal(b.indexOf(buf_bc, 2), -1); +assert.equal(b.indexOf(buf_bc, -1), -1); +assert.equal(b.indexOf(buf_bc, -3), -1); +assert.equal(b.indexOf(buf_bc, -5), 1); +assert.equal(b.indexOf(buf_bc, NaN), 1); +assert.equal(b.indexOf(buf_bc, -Infinity), 1); +assert.equal(b.indexOf(buf_bc, Infinity), -1); +assert.equal(b.indexOf(buf_f), b.length - 1); +assert.equal(b.indexOf(buf_z), -1); +assert.equal(b.indexOf(buf_empty), -1); +assert.equal(b.indexOf(buf_empty, 1), -1); +assert.equal(b.indexOf(buf_empty, b.length + 1), -1); +assert.equal(b.indexOf(buf_empty, Infinity), -1); +assert.equal(b.indexOf(0x61), 0); +assert.equal(b.indexOf(0x61, 1), -1); +assert.equal(b.indexOf(0x61, -1), -1); +assert.equal(b.indexOf(0x61, -4), -1); +assert.equal(b.indexOf(0x61, -b.length), 0); +assert.equal(b.indexOf(0x61, NaN), 0); +assert.equal(b.indexOf(0x61, -Infinity), 0); +assert.equal(b.indexOf(0x61, Infinity), -1); +assert.equal(b.indexOf(0x0), -1); + +// test offsets +assert.equal(b.indexOf('d', 2), 3); +assert.equal(b.indexOf('f', 5), 5); +assert.equal(b.indexOf('f', -1), 5); +assert.equal(b.indexOf('f', 6), -1); + +assert.equal(b.indexOf(Buffer.from('d'), 2), 3); +assert.equal(b.indexOf(Buffer.from('f'), 5), 5); +assert.equal(b.indexOf(Buffer.from('f'), -1), 5); +assert.equal(b.indexOf(Buffer.from('f'), 6), -1); + +assert.equal(Buffer.from('ff').indexOf(Buffer.from('f'), 1, 'ucs2'), -1); + +// test hex encoding +assert.strictEqual( + Buffer.from(b.toString('hex'), 'hex') + .indexOf('64', 0, 'hex'), + 3 +); +assert.strictEqual( + Buffer.from(b.toString('hex'), 'hex') + .indexOf(Buffer.from('64', 'hex'), 0, 'hex'), + 3 +); + +// test base64 encoding +assert.strictEqual( + Buffer.from(b.toString('base64'), 'base64') + .indexOf('ZA==', 0, 'base64'), + 3 +); +assert.strictEqual( + Buffer.from(b.toString('base64'), 'base64') + .indexOf(Buffer.from('ZA==', 'base64'), 0, 'base64'), + 3 +); + +// test ascii encoding +assert.strictEqual( + Buffer.from(b.toString('ascii'), 'ascii') + .indexOf('d', 0, 'ascii'), + 3 +); +assert.strictEqual( + Buffer.from(b.toString('ascii'), 'ascii') + .indexOf(Buffer.from('d', 'ascii'), 0, 'ascii'), + 3 +); + +// test latin1 encoding +assert.strictEqual( + Buffer.from(b.toString('latin1'), 'latin1') + .indexOf('d', 0, 'latin1'), + 3 +); +assert.strictEqual( + Buffer.from(b.toString('latin1'), 'latin1') + .indexOf(Buffer.from('d', 'latin1'), 0, 'latin1'), + 3 +); +assert.strictEqual( + Buffer.from('aa\u00e8aa', 'latin1') + .indexOf('\u00e8', 'latin1'), + 2 +); +assert.strictEqual( + Buffer.from('\u00e8', 'latin1') + .indexOf('\u00e8', 'latin1'), + 0 +); +assert.strictEqual( + Buffer.from('\u00e8', 'latin1') + .indexOf(Buffer.from('\u00e8', 'latin1'), 'latin1'), + 0 +); + +// test binary encoding +assert.strictEqual( + Buffer.from(b.toString('binary'), 'binary') + .indexOf('d', 0, 'binary'), + 3 +); +assert.strictEqual( + Buffer.from(b.toString('binary'), 'binary') + .indexOf(Buffer.from('d', 'binary'), 0, 'binary'), + 3 +); +assert.strictEqual( + Buffer.from('aa\u00e8aa', 'binary') + .indexOf('\u00e8', 'binary'), + 2 +); +assert.strictEqual( + Buffer.from('\u00e8', 'binary') + .indexOf('\u00e8', 'binary'), + 0 +); +assert.strictEqual( + Buffer.from('\u00e8', 'binary') + .indexOf(Buffer.from('\u00e8', 'binary'), 'binary'), + 0 +); + + +// test optional offset with passed encoding +assert.equal(Buffer.from('aaaa0').indexOf('30', 'hex'), 4); +assert.equal(Buffer.from('aaaa00a').indexOf('3030', 'hex'), 4); + +{ + // test usc2 encoding + var twoByteString = Buffer.from('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2'); + + assert.equal(8, twoByteString.indexOf('\u0395', 4, 'ucs2')); + assert.equal(6, twoByteString.indexOf('\u03a3', -4, 'ucs2')); + assert.equal(4, twoByteString.indexOf('\u03a3', -6, 'ucs2')); + assert.equal(4, twoByteString.indexOf( + Buffer.from('\u03a3', 'ucs2'), -6, 'ucs2')); + assert.equal(-1, twoByteString.indexOf('\u03a3', -2, 'ucs2')); +} + +var mixedByteStringUcs2 = + Buffer.from('\u039a\u0391abc\u03a3\u03a3\u0395', 'ucs2'); +assert.equal(6, mixedByteStringUcs2.indexOf('bc', 0, 'ucs2')); +assert.equal(10, mixedByteStringUcs2.indexOf('\u03a3', 0, 'ucs2')); +assert.equal(-1, mixedByteStringUcs2.indexOf('\u0396', 0, 'ucs2')); + +assert.equal( + 6, mixedByteStringUcs2.indexOf(Buffer.from('bc', 'ucs2'), 0, 'ucs2')); +assert.equal( + 10, mixedByteStringUcs2.indexOf(Buffer.from('\u03a3', 'ucs2'), 0, 'ucs2')); +assert.equal( + -1, mixedByteStringUcs2.indexOf(Buffer.from('\u0396', 'ucs2'), 0, 'ucs2')); + +{ + var twoByteString = Buffer.from('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2'); + + // Test single char pattern + assert.equal(0, twoByteString.indexOf('\u039a', 0, 'ucs2')); + assert.equal(2, twoByteString.indexOf('\u0391', 0, 'ucs2'), 'Alpha'); + assert.equal(4, twoByteString.indexOf('\u03a3', 0, 'ucs2'), 'First Sigma'); + assert.equal(6, twoByteString.indexOf('\u03a3', 6, 'ucs2'), 'Second Sigma'); + assert.equal(8, twoByteString.indexOf('\u0395', 0, 'ucs2'), 'Epsilon'); + assert.equal(-1, twoByteString.indexOf('\u0392', 0, 'ucs2'), 'Not beta'); + + // Test multi-char pattern + assert.equal( + 0, twoByteString.indexOf('\u039a\u0391', 0, 'ucs2'), 'Lambda Alpha'); + assert.equal( + 2, twoByteString.indexOf('\u0391\u03a3', 0, 'ucs2'), 'Alpha Sigma'); + assert.equal( + 4, twoByteString.indexOf('\u03a3\u03a3', 0, 'ucs2'), 'Sigma Sigma'); + assert.equal( + 6, twoByteString.indexOf('\u03a3\u0395', 0, 'ucs2'), 'Sigma Epsilon'); +} + +var mixedByteStringUtf8 = Buffer.from('\u039a\u0391abc\u03a3\u03a3\u0395'); +assert.equal(5, mixedByteStringUtf8.indexOf('bc')); +assert.equal(5, mixedByteStringUtf8.indexOf('bc', 5)); +assert.equal(5, mixedByteStringUtf8.indexOf('bc', -8)); +assert.equal(7, mixedByteStringUtf8.indexOf('\u03a3')); +assert.equal(-1, mixedByteStringUtf8.indexOf('\u0396')); + + +// Test complex string indexOf algorithms. Only trigger for long strings. +// Long string that isn't a simple repeat of a shorter string. +var longString = 'A'; +for (var i = 66; i < 76; i++) { // from 'B' to 'K' + longString = longString + String.fromCharCode(i) + longString; +} + +var longBufferString = Buffer.from(longString); + +// pattern of 15 chars, repeated every 16 chars in long +var pattern = 'ABACABADABACABA'; +for (var i = 0; i < longBufferString.length - pattern.length; i += 7) { + var index = longBufferString.indexOf(pattern, i); + assert.equal((i + 15) & ~0xf, index, 'Long ABACABA...-string at index ' + i); +} +assert.equal(510, longBufferString.indexOf('AJABACA'), 'Long AJABACA, First J'); +assert.equal( + 1534, longBufferString.indexOf('AJABACA', 511), 'Long AJABACA, Second J'); + +pattern = 'JABACABADABACABA'; +assert.equal( + 511, longBufferString.indexOf(pattern), 'Long JABACABA..., First J'); +assert.equal( + 1535, longBufferString.indexOf(pattern, 512), 'Long JABACABA..., Second J'); + +// Search for a non-ASCII string in a pure ASCII string. +var asciiString = Buffer.from( + 'arglebargleglopglyfarglebargleglopglyfarglebargleglopglyf'); +assert.equal(-1, asciiString.indexOf('\x2061')); +assert.equal(3, asciiString.indexOf('leb', 0)); + +// Search in string containing many non-ASCII chars. +var allCodePoints = []; +for (var i = 0; i < 65536; i++) allCodePoints[i] = i; +var allCharsString = String.fromCharCode.apply(String, allCodePoints); +var allCharsBufferUtf8 = Buffer.from(allCharsString); +var allCharsBufferUcs2 = Buffer.from(allCharsString, 'ucs2'); + +// Search for string long enough to trigger complex search with ASCII pattern +// and UC16 subject. +assert.equal(-1, allCharsBufferUtf8.indexOf('notfound')); +assert.equal(-1, allCharsBufferUcs2.indexOf('notfound')); + +// Needle is longer than haystack, but only because it's encoded as UTF-16 +assert.strictEqual(Buffer.from('aaaa').indexOf('a'.repeat(4), 'ucs2'), -1); + +assert.strictEqual(Buffer.from('aaaa').indexOf('a'.repeat(4), 'utf8'), 0); +assert.strictEqual(Buffer.from('aaaa').indexOf('你好', 'ucs2'), -1); + +// Haystack has odd length, but the needle is UCS2. +// assert.strictEqual(Buffer.from('aaaaa').indexOf('b', 'ucs2'), -1); + +{ + // Find substrings in Utf8. + var lengths = [1, 3, 15]; // Single char, simple and complex. + var indices = [0x5, 0x60, 0x400, 0x680, 0x7ee, 0xFF02, 0x16610, 0x2f77b]; + for (var lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) { + for (var i = 0; i < indices.length; i++) { + var index = indices[i]; + var length = lengths[lengthIndex]; + + if (index + length > 0x7F) { + length = 2 * length; + } + + if (index + length > 0x7FF) { + length = 3 * length; + } + + if (index + length > 0xFFFF) { + length = 4 * length; + } + + var patternBufferUtf8 = allCharsBufferUtf8.slice(index, index + length); + assert.equal(index, allCharsBufferUtf8.indexOf(patternBufferUtf8)); + + var patternStringUtf8 = patternBufferUtf8.toString(); + assert.equal(index, allCharsBufferUtf8.indexOf(patternStringUtf8)); + } + } +} + +{ + // Find substrings in Usc2. + var lengths = [2, 4, 16]; // Single char, simple and complex. + var indices = [0x5, 0x65, 0x105, 0x205, 0x285, 0x2005, 0x2085, 0xfff0]; + for (var lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) { + for (var i = 0; i < indices.length; i++) { + var index = indices[i] * 2; + var length = lengths[lengthIndex]; + + var patternBufferUcs2 = + allCharsBufferUcs2.slice(index, index + length); + assert.equal( + index, allCharsBufferUcs2.indexOf(patternBufferUcs2, 0, 'ucs2')); + + var patternStringUcs2 = patternBufferUcs2.toString('ucs2'); + assert.equal( + index, allCharsBufferUcs2.indexOf(patternStringUcs2, 0, 'ucs2')); + } + } +} + +assert.throws(function() { + b.indexOf(function() { }); +}); +assert.throws(function() { + b.indexOf({}); +}); +assert.throws(function() { + b.indexOf([]); +}); + +// All code for handling encodings is shared between Buffer.indexOf and +// Buffer.lastIndexOf, so only testing the separate lastIndexOf semantics. + +// Test lastIndexOf basic functionality; Buffer b contains 'abcdef'. +// lastIndexOf string: +assert.equal(b.lastIndexOf('a'), 0); +assert.equal(b.lastIndexOf('a', 1), 0); +assert.equal(b.lastIndexOf('b', 1), 1); +assert.equal(b.lastIndexOf('c', 1), -1); +assert.equal(b.lastIndexOf('a', -1), 0); +assert.equal(b.lastIndexOf('a', -4), 0); +assert.equal(b.lastIndexOf('a', -b.length), 0); +assert.equal(b.lastIndexOf('a', -b.length - 1), -1); +assert.equal(b.lastIndexOf('a', NaN), 0); +assert.equal(b.lastIndexOf('a', -Infinity), -1); +assert.equal(b.lastIndexOf('a', Infinity), 0); +// lastIndexOf Buffer: +assert.equal(b.lastIndexOf(buf_a), 0); +assert.equal(b.lastIndexOf(buf_a, 1), 0); +assert.equal(b.lastIndexOf(buf_a, -1), 0); +assert.equal(b.lastIndexOf(buf_a, -4), 0); +assert.equal(b.lastIndexOf(buf_a, -b.length), 0); +assert.equal(b.lastIndexOf(buf_a, -b.length - 1), -1); +assert.equal(b.lastIndexOf(buf_a, NaN), 0); +assert.equal(b.lastIndexOf(buf_a, -Infinity), -1); +assert.equal(b.lastIndexOf(buf_a, Infinity), 0); +assert.equal(b.lastIndexOf(buf_bc), 1); +assert.equal(b.lastIndexOf(buf_bc, 2), 1); +assert.equal(b.lastIndexOf(buf_bc, -1), 1); +assert.equal(b.lastIndexOf(buf_bc, -3), 1); +assert.equal(b.lastIndexOf(buf_bc, -5), 1); +assert.equal(b.lastIndexOf(buf_bc, -6), -1); +assert.equal(b.lastIndexOf(buf_bc, NaN), 1); +assert.equal(b.lastIndexOf(buf_bc, -Infinity), -1); +assert.equal(b.lastIndexOf(buf_bc, Infinity), 1); +assert.equal(b.lastIndexOf(buf_f), b.length - 1); +assert.equal(b.lastIndexOf(buf_z), -1); +assert.equal(b.lastIndexOf(buf_empty), -1); +assert.equal(b.lastIndexOf(buf_empty, 1), -1); +assert.equal(b.lastIndexOf(buf_empty, b.length + 1), -1); +assert.equal(b.lastIndexOf(buf_empty, Infinity), -1); +// lastIndexOf number: +assert.equal(b.lastIndexOf(0x61), 0); +assert.equal(b.lastIndexOf(0x61, 1), 0); +assert.equal(b.lastIndexOf(0x61, -1), 0); +assert.equal(b.lastIndexOf(0x61, -4), 0); +assert.equal(b.lastIndexOf(0x61, -b.length), 0); +assert.equal(b.lastIndexOf(0x61, -b.length - 1), -1); +assert.equal(b.lastIndexOf(0x61, NaN), 0); +assert.equal(b.lastIndexOf(0x61, -Infinity), -1); +assert.equal(b.lastIndexOf(0x61, Infinity), 0); +assert.equal(b.lastIndexOf(0x0), -1); + +// Test weird offset arguments. +// Behaviour should match String.lastIndexOf: +assert.equal(b.lastIndexOf('b', 0), -1); +assert.equal(b.lastIndexOf('b', undefined), 1); +assert.equal(b.lastIndexOf('b', null), -1); +assert.equal(b.lastIndexOf('b', {}), 1); +assert.equal(b.lastIndexOf('b', []), -1); +assert.equal(b.lastIndexOf('b', [2]), 1); + +// Test needles longer than the haystack. +assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'ucs2'), -1); +assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'utf8'), -1); +assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'latin1'), -1); +assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'binary'), -1); +assert.strictEqual(b.lastIndexOf(Buffer.from('aaaaaaaaaaaaaaa')), -1); +assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 2, 'ucs2'), -1); +assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 3, 'utf8'), -1); +assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 5, 'latin1'), -1); +assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 5, 'binary'), -1); +assert.strictEqual(b.lastIndexOf(Buffer.from('aaaaaaaaaaaaaaa'), 7), -1); + +// 你好 expands to a total of 6 bytes using UTF-8 and 4 bytes using UTF-16 +assert.strictEqual(buf_bc.lastIndexOf('你好', 'ucs2'), -1); +assert.strictEqual(buf_bc.lastIndexOf('你好', 'utf8'), -1); +assert.strictEqual(buf_bc.lastIndexOf('你好', 'latin1'), -1); +assert.strictEqual(buf_bc.lastIndexOf('你好', 'binary'), -1); +assert.strictEqual(buf_bc.lastIndexOf(Buffer.from('你好')), -1); +assert.strictEqual(buf_bc.lastIndexOf('你好', 2, 'ucs2'), -1); +assert.strictEqual(buf_bc.lastIndexOf('你好', 3, 'utf8'), -1); +assert.strictEqual(buf_bc.lastIndexOf('你好', 5, 'latin1'), -1); +assert.strictEqual(buf_bc.lastIndexOf('你好', 5, 'binary'), -1); +assert.strictEqual(buf_bc.lastIndexOf(Buffer.from('你好'), 7), -1); + +// Test lastIndexOf on a longer buffer: +var bufferString = new Buffer('a man a plan a canal panama'); +assert.equal(15, bufferString.lastIndexOf('canal')); +assert.equal(21, bufferString.lastIndexOf('panama')); +assert.equal(0, bufferString.lastIndexOf('a man a plan a canal panama')); +assert.equal(-1, bufferString.lastIndexOf('a man a plan a canal mexico')); +assert.equal(-1, bufferString.lastIndexOf('a man a plan a canal mexico city')); +assert.equal(-1, bufferString.lastIndexOf(Buffer.from('a'.repeat(1000)))); +assert.equal(0, bufferString.lastIndexOf('a man a plan', 4)); +assert.equal(13, bufferString.lastIndexOf('a ')); +assert.equal(13, bufferString.lastIndexOf('a ', 13)); +assert.equal(6, bufferString.lastIndexOf('a ', 12)); +assert.equal(0, bufferString.lastIndexOf('a ', 5)); +assert.equal(13, bufferString.lastIndexOf('a ', -1)); +assert.equal(0, bufferString.lastIndexOf('a ', -27)); +assert.equal(-1, bufferString.lastIndexOf('a ', -28)); + +// Test lastIndexOf for the case that the first character can be found, +// but in a part of the buffer that does not make search to search +// due do length constraints. +var abInUCS2 = Buffer.from('ab', 'ucs2'); +assert.strictEqual(-1, Buffer.from('µaaaa¶bbbb', 'latin1').lastIndexOf('µ')); +assert.strictEqual(-1, Buffer.from('µaaaa¶bbbb', 'binary').lastIndexOf('µ')); +assert.strictEqual(-1, Buffer.from('bc').lastIndexOf('ab')); +assert.strictEqual(-1, Buffer.from('abc').lastIndexOf('qa')); +assert.strictEqual(-1, Buffer.from('abcdef').lastIndexOf('qabc')); +assert.strictEqual(-1, Buffer.from('bc').lastIndexOf(Buffer.from('ab'))); +assert.strictEqual(-1, Buffer.from('bc', 'ucs2').lastIndexOf('ab', 'ucs2')); +assert.strictEqual(-1, Buffer.from('bc', 'ucs2').lastIndexOf(abInUCS2)); + +assert.strictEqual(0, Buffer.from('abc').lastIndexOf('ab')); +assert.strictEqual(0, Buffer.from('abc').lastIndexOf('ab', 1)); +assert.strictEqual(0, Buffer.from('abc').lastIndexOf('ab', 2)); +assert.strictEqual(0, Buffer.from('abc').lastIndexOf('ab', 3)); + +// The above tests test the LINEAR and SINGLE-CHAR strategies. +// Now, we test the BOYER-MOORE-HORSPOOL strategy. +// Test lastIndexOf on a long buffer w multiple matches: +pattern = 'JABACABADABACABA'; +assert.equal(1535, longBufferString.lastIndexOf(pattern)); +assert.equal(1535, longBufferString.lastIndexOf(pattern, 1535)); +assert.equal(511, longBufferString.lastIndexOf(pattern, 1534)); + +// Finally, give it a really long input to trigger fallback from BMH to +// regular BOYER-MOORE (which has better worst-case complexity). + +// Generate a really long Thue-Morse sequence of 'yolo' and 'swag', +// "yolo swag swag yolo swag yolo yolo swag" ..., goes on for about 5MB. +// This is hard to search because it all looks similar, but never repeats. + +// countBits returns the number of bits in the binary reprsentation of n. +function countBits(n) { + for (var count = 0; n > 0; count++) { + n = n & (n - 1); // remove top bit + } + return count; +} +var parts = []; +for (var i = 0; i < 1000000; i++) { + parts.push((countBits(i) % 2 === 0) ? 'yolo' : 'swag'); +} +var reallyLong = new Buffer(parts.join(' ')); +assert.equal('yolo swag swag yolo', reallyLong.slice(0, 19).toString()); + +// Expensive reverse searches. Stress test lastIndexOf: +pattern = reallyLong.slice(0, 100000); // First 1/50th of the pattern. +assert.equal(4751360, reallyLong.lastIndexOf(pattern)); +assert.equal(3932160, reallyLong.lastIndexOf(pattern, 4000000)); +assert.equal(2949120, reallyLong.lastIndexOf(pattern, 3000000)); +pattern = reallyLong.slice(100000, 200000); // Second 1/50th. +assert.equal(4728480, reallyLong.lastIndexOf(pattern)); +pattern = reallyLong.slice(0, 1000000); // First 1/5th. +assert.equal(3932160, reallyLong.lastIndexOf(pattern)); +pattern = reallyLong.slice(0, 2000000); // first 2/5ths. +assert.equal(0, reallyLong.lastIndexOf(pattern)); + +// test truncation of Number arguments to uint8 +{ + var buf = Buffer.from('this is a test'); + assert.strictEqual(buf.indexOf(0x6973), 3); + assert.strictEqual(buf.indexOf(0x697320), 4); + assert.strictEqual(buf.indexOf(0x69732069), 2); + assert.strictEqual(buf.indexOf(0x697374657374), 0); + assert.strictEqual(buf.indexOf(0x69737374), 0); + assert.strictEqual(buf.indexOf(0x69737465), 11); + assert.strictEqual(buf.indexOf(0x69737465), 11); + assert.strictEqual(buf.indexOf(-140), 0); + assert.strictEqual(buf.indexOf(-152), 1); + assert.strictEqual(buf.indexOf(0xff), -1); + assert.strictEqual(buf.indexOf(0xffff), -1); +} + diff --git a/node_modules/buffer/test/node/test-buffer-inheritance.js b/node_modules/buffer/test/node/test-buffer-inheritance.js new file mode 100644 index 0000000..711d9f2 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-inheritance.js @@ -0,0 +1,42 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + + +var assert = require('assert'); + + +function T(n) { + var ui8 = new Uint8Array(n); + Object.setPrototypeOf(ui8, T.prototype); + return ui8; +} +Object.setPrototypeOf(T.prototype, Buffer.prototype); +Object.setPrototypeOf(T, Buffer); + +T.prototype.sum = function sum() { + var cntr = 0; + for (var i = 0; i < this.length; i++) + cntr += this[i]; + return cntr; +}; + + +var vals = [new T(4), T(4)]; + +vals.forEach(function(t) { + assert.equal(t.constructor, T); + assert.equal(Object.getPrototypeOf(t), T.prototype); + assert.equal(Object.getPrototypeOf(Object.getPrototypeOf(t)), + Buffer.prototype); + + t.fill(5); + var cntr = 0; + for (var i = 0; i < t.length; i++) + cntr += t[i]; + assert.equal(t.length * 5, cntr); + + // Check this does not throw + t.toString(); +}); + diff --git a/node_modules/buffer/test/node/test-buffer-inspect.js b/node_modules/buffer/test/node/test-buffer-inspect.js new file mode 100644 index 0000000..d0ed590 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-inspect.js @@ -0,0 +1,41 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + +var assert = require('assert'); + +var util = require('util'); + +var buffer = require('../../'); + +buffer.INSPECT_MAX_BYTES = 2; + +var b = Buffer.allocUnsafe(4); +b.fill('1234'); + +var s = buffer.SlowBuffer(4); +s.fill('1234'); + +var expected = '<Buffer 31 32 ... >'; + +assert.strictEqual(util.inspect(b), expected); +assert.strictEqual(util.inspect(s), expected); + +b = Buffer.allocUnsafe(2); +b.fill('12'); + +s = buffer.SlowBuffer(2); +s.fill('12'); + +expected = '<Buffer 31 32>'; + +assert.strictEqual(util.inspect(b), expected); +assert.strictEqual(util.inspect(s), expected); + +buffer.INSPECT_MAX_BYTES = Infinity; + +assert.doesNotThrow(function() { + assert.strictEqual(util.inspect(b), expected); + assert.strictEqual(util.inspect(s), expected); +}); + diff --git a/node_modules/buffer/test/node/test-buffer-iterator.js b/node_modules/buffer/test/node/test-buffer-iterator.js new file mode 100644 index 0000000..f27709f --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-iterator.js @@ -0,0 +1,65 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + +var assert = require('assert'); + +var buffer = Buffer.from([1, 2, 3, 4, 5]); +var arr; +var b; + +// buffers should be iterable + +arr = []; + +for (b of buffer) + arr.push(b); + +assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]); + + +// buffer iterators should be iterable + +arr = []; + +for (b of buffer[Symbol.iterator]()) + arr.push(b); + +assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]); + + +// buffer#values() should return iterator for values + +arr = []; + +for (b of buffer.values()) + arr.push(b); + +assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]); + + +// buffer#keys() should return iterator for keys + +arr = []; + +for (b of buffer.keys()) + arr.push(b); + +assert.deepStrictEqual(arr, [0, 1, 2, 3, 4]); + + +// buffer#entries() should return iterator for entries + +arr = []; + +for (b of buffer.entries()) + arr.push(b); + +assert.deepStrictEqual(arr, [ + [0, 1], + [1, 2], + [2, 3], + [3, 4], + [4, 5] +]); + diff --git a/node_modules/buffer/test/node/test-buffer-safe-unsafe.js b/node_modules/buffer/test/node/test-buffer-safe-unsafe.js new file mode 100644 index 0000000..22ba29e --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-safe-unsafe.js @@ -0,0 +1,27 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + + +var assert = require('assert'); + +var safe = Buffer.alloc(10); + +function isZeroFilled(buf) { + for (var n = 0; n < buf.length; n++) + if (buf[n] !== 0) return false; + return true; +} + +assert(isZeroFilled(safe)); + +// Test that unsafe allocations doesn't affect subsequent safe allocations +Buffer.allocUnsafe(10); +assert(isZeroFilled(new Float64Array(10))); + +new Buffer(10); +assert(isZeroFilled(new Float64Array(10))); + +Buffer.allocUnsafe(10); +assert(isZeroFilled(Buffer.alloc(10))); + diff --git a/node_modules/buffer/test/node/test-buffer-slow.js b/node_modules/buffer/test/node/test-buffer-slow.js new file mode 100644 index 0000000..65cea21 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-slow.js @@ -0,0 +1,63 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + + +var assert = require('assert'); +var buffer = require('../../'); +var Buffer = buffer.Buffer; +var SlowBuffer = buffer.SlowBuffer; + +var ones = [1, 1, 1, 1]; + +// should create a Buffer +var sb = SlowBuffer(4); +assert(sb instanceof Buffer); +assert.strictEqual(sb.length, 4); +sb.fill(1); +for (var [key, value] of sb.entries()) { + assert.deepStrictEqual(value, ones[key]); +} + +// underlying ArrayBuffer should have the same length +assert.strictEqual(sb.buffer.byteLength, 4); + +// should work without new +sb = SlowBuffer(4); +assert(sb instanceof Buffer); +assert.strictEqual(sb.length, 4); +sb.fill(1); +for (var [key, value] of sb.entries()) { + assert.deepStrictEqual(value, ones[key]); +} + +// should work with edge cases +assert.strictEqual(SlowBuffer(0).length, 0); +try { + assert.strictEqual( + SlowBuffer(buffer.kMaxLength).length, buffer.kMaxLength); +} catch (e) { + assert.equal(e.message, 'Array buffer allocation failed'); +} + +// should work with number-coercible values +assert.strictEqual(SlowBuffer('6').length, 6); +assert.strictEqual(SlowBuffer(true).length, 1); + +// should create zero-length buffer if parameter is not a number +assert.strictEqual(SlowBuffer().length, 0); +assert.strictEqual(SlowBuffer(NaN).length, 0); +assert.strictEqual(SlowBuffer({}).length, 0); +assert.strictEqual(SlowBuffer('string').length, 0); + +// should throw with invalid length +assert.throws(function() { + SlowBuffer(Infinity); +}, 'invalid Buffer length'); +assert.throws(function() { + SlowBuffer(-1); +}, 'invalid Buffer length'); +assert.throws(function() { + SlowBuffer(buffer.kMaxLength + 1); +}, 'invalid Buffer length'); + diff --git a/node_modules/buffer/test/node/test-buffer-swap.js b/node_modules/buffer/test/node/test-buffer-swap.js new file mode 100644 index 0000000..2ec1a7a --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-swap.js @@ -0,0 +1,141 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + + +var assert = require('assert'); + +// Test buffers small enough to use the JS implementation +var buf = Buffer.from([0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, + 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10]); + +assert.strictEqual(buf, buf.swap16()); +assert.deepStrictEqual(buf, Buffer.from([0x02, 0x01, 0x04, 0x03, 0x06, 0x05, + 0x08, 0x07, 0x0a, 0x09, 0x0c, 0x0b, + 0x0e, 0x0d, 0x10, 0x0f])); +buf.swap16(); // restore + +assert.strictEqual(buf, buf.swap32()); +assert.deepStrictEqual(buf, Buffer.from([0x04, 0x03, 0x02, 0x01, 0x08, 0x07, + 0x06, 0x05, 0x0c, 0x0b, 0x0a, 0x09, + 0x10, 0x0f, 0x0e, 0x0d])); +buf.swap32(); // restore + +assert.strictEqual(buf, buf.swap64()); +assert.deepStrictEqual(buf, Buffer.from([0x08, 0x07, 0x06, 0x05, 0x04, 0x03, + 0x02, 0x01, 0x10, 0x0f, 0x0e, 0x0d, + 0x0c, 0x0b, 0x0a, 0x09])); + +// Operates in-place +var buf3 = Buffer.from([0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7]); +buf3.slice(1, 5).swap32(); +assert.deepStrictEqual(buf3, Buffer.from([0x1, 0x5, 0x4, 0x3, 0x2, 0x6, 0x7])); + +buf3.slice(1, 5).swap16(); +assert.deepStrictEqual(buf3, Buffer.from([0x1, 0x4, 0x5, 0x2, 0x3, 0x6, 0x7])); + +var buf3_64 = Buffer.from([0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, + 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, + 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, + 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10]); +buf3_64.slice(2, 18).swap64(); +assert.deepStrictEqual(buf3_64, Buffer.from([0x01, 0x02, 0x0a, 0x09, 0x08, 0x07, + 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, + 0x10, 0x0f, 0x0e, 0x0d, 0x0c, 0x0b, + 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, + 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, + 0x0f, 0x10])); + +// Force use of native code (Buffer size above threshold limit for js impl) +var buf4A = new Uint32Array(256).fill(0x04030201); +var buf4 = Buffer.from(buf4A.buffer, buf4A.byteOffset); +var buf5A = new Uint32Array(256).fill(0x03040102); +var buf5 = Buffer.from(buf5A.buffer, buf5A.byteOffset); + +buf4.swap16(); +assert.deepStrictEqual(buf4, buf5); + +var buf6A = new Uint32Array(256).fill(0x04030201); +var buf6 = Buffer.from(buf6A.buffer); +var bu7A = new Uint32Array(256).fill(0x01020304); +var buf7 = Buffer.from(bu7A.buffer, bu7A.byteOffset); + +buf6.swap32(); +assert.deepStrictEqual(buf6, buf7); + +var buf8A = new Uint8Array(256 * 8); +var buf9A = new Uint8Array(256 * 8); +for (var i = 0; i < buf8A.length; i++) { + buf8A[i] = i % 8; + buf9A[buf9A.length - i - 1] = i % 8; +} +var buf8 = Buffer.from(buf8A.buffer, buf8A.byteOffset); +var buf9 = Buffer.from(buf9A.buffer, buf9A.byteOffset); + +buf8.swap64(); +assert.deepStrictEqual(buf8, buf9); + +// Test native code with buffers that are not memory-aligned +var buf10A = new Uint8Array(256 * 8); +var buf11A = new Uint8Array(256 * 8 - 2); +for (var i = 0; i < buf10A.length; i++) { + buf10A[i] = i % 2; +} +for (var i = 1; i < buf11A.length; i++) { + buf11A[buf11A.length - i] = (i + 1) % 2; +} +var buf10 = Buffer.from(buf10A.buffer, buf10A.byteOffset); +// 0|1 0|1 0|1... +var buf11 = Buffer.from(buf11A.buffer, buf11A.byteOffset); +// 0|0 1|0 1|0... + +buf10.slice(1, buf10.length - 1).swap16(); +assert.deepStrictEqual(buf10.slice(0, buf11.length), buf11); + + +var buf12A = new Uint8Array(256 * 8); +var buf13A = new Uint8Array(256 * 8 - 4); +for (var i = 0; i < buf12A.length; i++) { + buf12A[i] = i % 4; +} +for (var i = 1; i < buf13A.length; i++) { + buf13A[buf13A.length - i] = (i + 1) % 4; +} +var buf12 = Buffer.from(buf12A.buffer, buf12A.byteOffset); +// 0|1 2 3 0|1 2 3... +var buf13 = Buffer.from(buf13A.buffer, buf13A.byteOffset); +// 0|0 3 2 1|0 3 2... + +buf12.slice(1, buf12.length - 3).swap32(); +assert.deepStrictEqual(buf12.slice(0, buf13.length), buf13); + + +var buf14A = new Uint8Array(256 * 8); +var buf15A = new Uint8Array(256 * 8 - 8); +for (var i = 0; i < buf14A.length; i++) { + buf14A[i] = i % 8; +} +for (var i = 1; i < buf15A.length; i++) { + buf15A[buf15A.length - i] = (i + 1) % 8; +} +var buf14 = Buffer.from(buf14A.buffer, buf14A.byteOffset); +// 0|1 2 3 4 5 6 7 0|1 2 3 4... +var buf15 = Buffer.from(buf15A.buffer, buf15A.byteOffset); +// 0|0 7 6 5 4 3 2 1|0 7 6 5... + +buf14.slice(1, buf14.length - 7).swap64(); +assert.deepStrictEqual(buf14.slice(0, buf15.length), buf15); + +// Length assertions +var re16 = /Buffer size must be a multiple of 16-bits/; +var re32 = /Buffer size must be a multiple of 32-bits/; +var re64 = /Buffer size must be a multiple of 64-bits/; + +assert.throws(() => Buffer.from(buf3).swap16(), re16); +assert.throws(() => Buffer.alloc(1025).swap16(), re16); +assert.throws(() => Buffer.from(buf3).swap32(), re32); +assert.throws(() => buf3.slice(1, 3).swap32(), re32); +assert.throws(() => Buffer.alloc(1025).swap32(), re32); +assert.throws(() => buf3.slice(1, 3).swap64(), re64); +assert.throws(() => Buffer.alloc(1025).swap64(), re64); + diff --git a/node_modules/buffer/test/node/test-buffer-zero-fill-cli.js b/node_modules/buffer/test/node/test-buffer-zero-fill-cli.js new file mode 100644 index 0000000..744b334 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-zero-fill-cli.js @@ -0,0 +1,35 @@ +'use strict'; +var Buffer = require('../../').Buffer; + +// Flags: --zero-fill-buffers + +// when using --zero-fill-buffers, every Buffer and SlowBuffer +// instance must be zero filled upon creation + + +var SlowBuffer = require('../../').SlowBuffer; +var assert = require('assert'); + +function isZeroFilled(buf) { + for (var n = 0; n < buf.length; n++) + if (buf[n] > 0) return false; + return true; +} + +// This can be somewhat unreliable because the +// allocated memory might just already happen to +// contain all zeroes. The test is run multiple +// times to improve the reliability. +for (var i = 0; i < 50; i++) { + var bufs = [ + Buffer.alloc(20), + Buffer.allocUnsafe(20), + SlowBuffer(20), + Buffer(20), + new SlowBuffer(20) + ]; + for (var buf of bufs) { + assert(isZeroFilled(buf)); + } +} + diff --git a/node_modules/buffer/test/node/test-buffer-zero-fill-reset.js b/node_modules/buffer/test/node/test-buffer-zero-fill-reset.js new file mode 100644 index 0000000..b21a6b2 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-zero-fill-reset.js @@ -0,0 +1,22 @@ +'use strict'; +var Buffer = require('../../').Buffer; + + + +var assert = require('assert'); + + +function testUint8Array(ui) { + var length = ui.length; + for (var i = 0; i < length; i++) + if (ui[i] !== 0) return false; + return true; +} + + +for (var i = 0; i < 100; i++) { + Buffer.alloc(0); + var ui = new Uint8Array(65); + assert.ok(testUint8Array(ui), 'Uint8Array is not zero-filled'); +} + diff --git a/node_modules/buffer/test/node/test-buffer.js b/node_modules/buffer/test/node/test-buffer.js new file mode 100644 index 0000000..2e94de2 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer.js @@ -0,0 +1,1534 @@ +'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 hex character throws TypeError +// - https://github.com/nodejs/node/issues/6770 +assert.throws(function() { + Buffer.from('A', 'hex'); +}, TypeError); + +// 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'); }); + +var ps = Buffer.poolSize; +Buffer.poolSize = 0; +assert.equal(Buffer(1).parent, undefined); +Buffer.poolSize = ps; + +// Test Buffer.copy() segfault +assert.throws(function() { + Buffer(10).copy(); +}); + +var regErrorMsg = new RegExp('First argument must be a string, Buffer, ' + + 'ArrayBuffer, Array, or array-like object.'); + +assert.throws(function() { + new Buffer(); +}, regErrorMsg); + +assert.throws(function() { + new Buffer(null); +}, regErrorMsg); + + +// Test prototype getters don't throw +assert.equal(Buffer.prototype.parent, undefined); +assert.equal(Buffer.prototype.offset, undefined); +assert.equal(SlowBuffer.prototype.parent, undefined); +assert.equal(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({ 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'); + |