From d88a113941df1997c469e6c38807b0f5c3d9e1d3 Mon Sep 17 00:00:00 2001 From: Jesse Tane Date: Mon, 15 Dec 2014 18:52:01 -0500 Subject: [PATCH] download node's buffer tests --- test/node-test-buffer-ascii.js | 53 ++ test/node-test-buffer-big.js | 37 + test/node-test-buffer-concat.js | 49 ++ test/node-test-buffer-inspect.js | 65 ++ test/node-test-buffer-slice.js | 40 + test/node-test-buffer.js | 1194 ++++++++++++++++++++++++++++++ 6 files changed, 1438 insertions(+) create mode 100644 test/node-test-buffer-ascii.js create mode 100644 test/node-test-buffer-big.js create mode 100644 test/node-test-buffer-concat.js create mode 100644 test/node-test-buffer-inspect.js create mode 100644 test/node-test-buffer-slice.js create mode 100644 test/node-test-buffer.js diff --git a/test/node-test-buffer-ascii.js b/test/node-test-buffer-ascii.js new file mode 100644 index 0000000..1403b03 --- /dev/null +++ b/test/node-test-buffer-ascii.js @@ -0,0 +1,53 @@ +var Buffer = require('../').Buffer +var test = require('tape') +if (process.env.OBJECT_IMPL) Buffer.TYPED_ARRAY_SUPPORT = false +test('test-buffer-ascii.js', function(t) { +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// var common = require('../common'); +// var assert = require('assert'); + +// ASCII conversion in node.js simply masks off the high bits, +// it doesn't do transliteration. +t.equal(Buffer('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(input); + +for (var i = 0; i < expected.length; ++i) { + t.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; +} + + +t.end() +}) \ No newline at end of file diff --git a/test/node-test-buffer-big.js b/test/node-test-buffer-big.js new file mode 100644 index 0000000..c0a080f --- /dev/null +++ b/test/node-test-buffer-big.js @@ -0,0 +1,37 @@ +var Buffer = require('../').Buffer +var test = require('tape') +if (process.env.OBJECT_IMPL) Buffer.TYPED_ARRAY_SUPPORT = false +test('test-buffer-big.js', function(t) { +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// var common = require('../common'); +// var assert = require('assert'); + +// The tests below should throw an error, not abort the process... +t.throws(function() { new Buffer(0x3fffffff + 1) }, RangeError); +// t.throws(function() { new Int8Array(0x3fffffff + 1) }, RangeError); +// t.throws(function() { new ArrayBuffer(0x3fffffff + 1) }, RangeError); +// t.throws(function() { new Float64Array(0x7ffffff + 1) }, RangeError); + + +t.end() +}) \ No newline at end of file diff --git a/test/node-test-buffer-concat.js b/test/node-test-buffer-concat.js new file mode 100644 index 0000000..f7fffa8 --- /dev/null +++ b/test/node-test-buffer-concat.js @@ -0,0 +1,49 @@ +var Buffer = require('../').Buffer +var test = require('tape') +if (process.env.OBJECT_IMPL) Buffer.TYPED_ARRAY_SUPPORT = false +test('test-buffer-concat.js', function(t) { +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// var common = require('../common'); +// var assert = require('assert'); + +var zero = []; +var one = [ new Buffer('asdf') ]; +var long = []; +for (var i = 0; i < 10; i++) long.push(new Buffer('asdf')); + +var flatZero = Buffer.concat(zero); +var flatOne = Buffer.concat(one); +var flatLong = Buffer.concat(long); +var flatLongLen = Buffer.concat(long, 40); + +t.ok(flatZero.length === 0); +t.ok(flatOne.toString() === 'asdf'); +t.ok(flatOne === one[0]); +t.ok(flatLong.toString() === (new Array(10+1).join('asdf'))); +t.ok(flatLongLen.toString() === (new Array(10+1).join('asdf'))); + +// console.log("ok"); + + +t.end() +}) \ No newline at end of file diff --git a/test/node-test-buffer-inspect.js b/test/node-test-buffer-inspect.js new file mode 100644 index 0000000..6f9b20d --- /dev/null +++ b/test/node-test-buffer-inspect.js @@ -0,0 +1,65 @@ +var Buffer = require('../').Buffer +var test = require('tape') +if (process.env.OBJECT_IMPL) Buffer.TYPED_ARRAY_SUPPORT = false +test('test-buffer-inspect.js', function(t) { +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// var common = require('../common'); +// var assert = require('assert'); + +var util = require('util'); + +var buffer = require('../'); + +buffer.INSPECT_MAX_BYTES = 2; + +var b = new Buffer(4); +b.fill('1234'); + +var s = new buffer.SlowBuffer(4); +s.fill('1234'); + +var expected = ''; + +t.strictEqual(util.inspect(b), expected); +t.strictEqual(util.inspect(s), expected); + +b = new Buffer(2); +b.fill('12'); + +s = new buffer.SlowBuffer(2); +s.fill('12'); + +expected = ''; + +t.strictEqual(util.inspect(b), expected); +t.strictEqual(util.inspect(s), expected); + +buffer.INSPECT_MAX_BYTES = Infinity; + +t.doesNotThrow(function() { + t.strictEqual(util.inspect(b), expected); + t.strictEqual(util.inspect(s), expected); +}); + +t.end() +}) \ No newline at end of file diff --git a/test/node-test-buffer-slice.js b/test/node-test-buffer-slice.js new file mode 100644 index 0000000..d007a2b --- /dev/null +++ b/test/node-test-buffer-slice.js @@ -0,0 +1,40 @@ +var Buffer = require('../').Buffer +var test = require('tape') +if (process.env.OBJECT_IMPL) Buffer.TYPED_ARRAY_SUPPORT = false +test('test-buffer-slice.js', function(t) { +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// var common = require('../common'); +// var assert = require('assert'); + +var Buffer = require('../').Buffer; + +var buff = new Buffer(Buffer.poolSize + 1); +var slicedBuffer = buff.slice(); +t.equal(slicedBuffer.parent, + buff, + "slicedBufffer should have its parent set to the original " + + " buffer"); + + +t.end() +}) \ No newline at end of file diff --git a/test/node-test-buffer.js b/test/node-test-buffer.js new file mode 100644 index 0000000..6886ede --- /dev/null +++ b/test/node-test-buffer.js @@ -0,0 +1,1194 @@ +var Buffer = require('../').Buffer +var test = require('tape') +if (process.env.OBJECT_IMPL) Buffer.TYPED_ARRAY_SUPPORT = false +test('test-buffer.js', function(t) { +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// var common = require('../common'); +// var assert = require('assert'); + +var Buffer = require('../').Buffer; +var SlowBuffer = require('../').SlowBuffer; +var smalloc = { kMaxLength: 0x3FFFFFFF }; + +// counter to ensure unique value is always copied +var cntr = 0; + +var b = Buffer(1024); // safe constructor + +// console.log('b.length == %d', b.length); +t.strictEqual(1024, b.length); + +b[0] = 255; +t.strictEqual(b[0], 255); + +for (var i = 0; i < 1024; i++) { + b[i] = i % 256; +} + +for (var i = 0; i < 1024; i++) { + t.strictEqual(i % 256, b[i]); +} + +var c = new Buffer(512); +// console.log('c.length == %d', c.length); +t.strictEqual(512, c.length); + +// First check Buffer#fill() works as expected. + +t.throws(function() { + Buffer(8).fill('a', -1); +}); + +t.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++) + t.equal(buf[i], 10); + +buf.fill(11, 0, buf.length >> 1); +for (var i = 0; i < buf.length >> 1; i++) + t.equal(buf[i], 11); +for (var i = (buf.length >> 1) + 1; i < buf.length; i++) + t.equal(buf[i], 10); + +buf.fill('h'); +for (var i = 0; i < buf.length; i++) + t.equal('h'.charCodeAt(0), buf[i]); + +buf.fill(0); +for (var i = 0; i < buf.length; i++) + t.equal(0, buf[i]); + +buf.fill(null); +for (var i = 0; i < buf.length; i++) + t.equal(0, buf[i]); + +buf.fill(1, 16, 32); +for (var i = 0; i < 16; i++) + t.equal(0, buf[i]); +for (; i < 32; i++) + t.equal(1, buf[i]); +for (; i < buf.length; i++) + t.equal(0, buf[i]); + +var buf = new Buffer(10); +buf.fill('abc'); +t.equal(buf.toString(), 'abcabcabca'); +buf.fill('է'); +t.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); +t.strictEqual(512, copied); +for (var i = 0; i < c.length; i++) { + t.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); +t.strictEqual(c.length, copied); +for (var i = 0; i < c.length; i++) { + t.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); +t.strictEqual(c.length, copied); +for (var i = 0; i < c.length; i++) { + t.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); +t.strictEqual(c.length, copied); +for (var i = 0; i < c.length; i++) { + t.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); +t.strictEqual(Math.floor(c.length / 2), copied); +for (var i = 0; i < Math.floor(c.length / 2); i++) { + t.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++) { + t.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); +t.strictEqual(c.length, copied); +for (var i = 0; i < c.length; i++) { + t.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); +t.strictEqual(768, copied); +for (var i = 0; i < b.length; i++) { + t.strictEqual(cntr, b[i]); +} + +// copy string longer than buffer length (failure will segfault) +var bb = new Buffer(10); +bb.fill('hello crazy world'); + + +var caught_error = null; + +// try to copy from before the beginning of b +caught_error = null; +try { + var copied = b.copy(c, 0, 100, 10); +} catch (err) { + caught_error = err; +} + +// copy throws at negative sourceStart +t.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++) { + t.strictEqual(b[i], c[i]); +} + +// throw with negative sourceEnd +// console.log('test copy at negative sourceEnd'); +t.throws(function() { + b.copy(c, 0, 0, -1); +}, RangeError); + +// when sourceStart is greater than sourceEnd, zero copied +t.equal(b.copy(c, 0, 100, 10), 0); + +// when targetStart > targetLength, zero copied +t.equal(b.copy(c, 512, 0, 10), 0); + +var caught_error; + +// invalid encoding for Buffer.toString +caught_error = null; +try { + var copied = b.toString('invalid'); +} catch (err) { + caught_error = err; +} +t.strictEqual('Unknown encoding: invalid', caught_error.message); + +// invalid encoding for Buffer.write +caught_error = null; +try { + var copied = b.write('test string', 0, 5, 'invalid'); +} catch (err) { + caught_error = err; +} +t.strictEqual('Unknown encoding: invalid', caught_error.message); + +// try to create 0-length buffers +new Buffer(''); +new Buffer('', 'ascii'); +new Buffer('', 'binary'); +new Buffer(0); + +// try to write a 0-length string beyond the end of b +t.throws(function() { + b.write('', 2048); +}, RangeError); + +// throw when writing to negative offset +t.throws(function() { + b.write('a', -1); +}, RangeError); + +// throw when writing past bounds from the pool +t.throws(function() { + b.write('a', 2048); +}, RangeError); + +// throw when writing to negative offset +t.throws(function() { + b.write('a', -1); +}, RangeError); + +// try to copy 0 bytes worth of data into an empty buffer +b.copy(new Buffer(0), 0, 0, 0); + +// try to copy 0 bytes past the end of the target buffer +b.copy(new Buffer(0), 1, 1, 1); +b.copy(new Buffer(1), 1, 1, 1); + +// try to copy 0 bytes from past the end of the source buffer +b.copy(new Buffer(1), 0, 2048, 2048); + +// try to toString() a 0-length slice of a buffer, both within and without the +// valid buffer range +t.equal(new Buffer('abc').toString('ascii', 0, 0), ''); +t.equal(new Buffer('abc').toString('ascii', -100, -100), ''); +t.equal(new Buffer('abc').toString('ascii', 100, 100), ''); + +// try toString() with a object as a encoding +t.equal(new Buffer('abc').toString({toString: function() { + return 'ascii'; +}}), 'abc'); + +// testing for smart defaults and ability to pass string values as offset +var writeTest = new Buffer('abcdes'); +writeTest.write('n', 'ascii'); +writeTest.write('o', 'ascii', '1'); +writeTest.write('d', '2', 'ascii'); +writeTest.write('e', 3, 'ascii'); +writeTest.write('j', 'ascii', 4); +t.equal(writeTest.toString(), 'nodejs'); + +var asciiString = 'hello world'; +var offset = 100; +for (var j = 0; j < 500; j++) { + + for (var i = 0; i < asciiString.length; i++) { + b[i] = asciiString.charCodeAt(i); + } + var asciiSlice = b.toString('ascii', 0, asciiString.length); + t.equal(asciiString, asciiSlice); + + var written = b.write(asciiString, offset, 'ascii'); + t.equal(asciiString.length, written); + var asciiSlice = b.toString('ascii', offset, offset + asciiString.length); + t.equal(asciiString, asciiSlice); + + var sliceA = b.slice(offset, offset + asciiString.length); + var sliceB = b.slice(offset, offset + asciiString.length); + for (var i = 0; i < asciiString.length; i++) { + t.equal(sliceA[i], sliceB[i]); + } + + // TODO utf8 slice tests +} + + +for (var j = 0; j < 100; j++) { + var slice = b.slice(100, 150); + t.equal(50, slice.length); + for (var i = 0; i < 50; i++) { + t.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); +t.equal(b.parent, c.parent); +t.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); +t.equal(b, c.parent); +t.equal(b, 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); +t.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); +t.equal(4, b[0]); +t.equal(5, b[1]); +t.equal(6, b[2]); +t.equal(7, b[3]); +var c = b.slice(2, 4); +t.equal(6, c[0]); +t.equal(7, c[1]); + + +var d = new Buffer([23, 42, 255]); +t.equal(d.length, 3); +t.equal(d[0], 23); +t.equal(d[1], 42); +t.equal(d[2], 255); +t.deepEqual(d, new Buffer(d)); + +var e = new Buffer('über'); +// console.error('uber: \'%s\'', e.toString()); +t.deepEqual(e, new Buffer([195, 188, 98, 101, 114])); + +var f = new Buffer('über', 'ascii'); +// console.error('f.length: %d (should be 4)', f.length); +t.deepEqual(f, new Buffer([252, 98, 101, 114])); + +['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { + var f = new Buffer('über', encoding); +// console.error('f.length: %d (should be 8)', f.length); + t.deepEqual(f, new Buffer([252, 0, 98, 0, 101, 0, 114, 0])); + + var f = new Buffer('привет', encoding); +// console.error('f.length: %d (should be 12)', f.length); + t.deepEqual(f, new Buffer([63, 4, 64, 4, 56, 4, 50, 4, 53, 4, 66, 4])); + t.equal(f.toString(encoding), 'привет'); + + var f = new Buffer([0, 0, 0, 0, 0]); + t.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); + t.equal(size, 4); + t.deepEqual(f, new Buffer([0x42, 0x30, 0x44, 0x30, 0x00])); +}); + +var f = new Buffer('\uD83D\uDC4D', 'utf-16le'); // THUMBS UP SIGN (U+1F44D) +t.equal(f.length, 4); +t.deepEqual(f, new Buffer('3DD84DDC', 'hex')); + + +var arrayIsh = {0: 0, 1: 1, 2: 2, 3: 3, length: 4}; +var g = new Buffer(arrayIsh); +t.deepEqual(g, new Buffer([0, 1, 2, 3])); +var strArrayIsh = {0: '0', 1: '1', 2: '2', 3: '3', length: 4}; +g = new Buffer(strArrayIsh); +t.deepEqual(g, new Buffer([0, 1, 2, 3])); + + +// +// Test toString('base64') +// +t.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]; +t.deepEqual(Buffer('//++/++/++//', 'base64'), Buffer(expected)); +t.deepEqual(Buffer('__--_--_--__', 'base64'), Buffer(expected)); + +// big example +var quote = 'Man is distinguished, not only by his reason, but by this ' + + 'singular passion from other animals, which is a lust ' + + 'of the mind, that by a perseverance of delight in the continued ' + + 'and indefatigable generation of knowledge, exceeds the short ' + + 'vehemence of any carnal pleasure.'; +var expected = 'TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24s' + + 'IGJ1dCBieSB0aGlzIHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltY' + + 'WxzLCB3aGljaCBpcyBhIGx1c3Qgb2YgdGhlIG1pbmQsIHRoYXQgYnkgYSBwZX' + + 'JzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGludWVkIGFuZCBpbmR' + + 'lZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo' + + 'ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4='; +t.equal(expected, (new Buffer(quote)).toString('base64')); + + +b = new Buffer(1024); +var bytesWritten = b.write(expected, 0, 'base64'); +t.equal(quote.length, bytesWritten); +t.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'); +t.equal(quote.length, bytesWritten); +t.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'); +t.equal(quote.length, b.length); +t.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'); +t.equal(quote.length, b.length); +t.equal(quote, b.toString('ascii', 0, quote.length)); + + +t.equal(new Buffer('', 'base64').toString(), ''); +t.equal(new Buffer('K', 'base64').toString(), ''); + +// multiple-of-4 with padding +t.equal(new Buffer('Kg==', 'base64').toString(), '*'); +t.equal(new Buffer('Kio=', 'base64').toString(), '**'); +t.equal(new Buffer('Kioq', 'base64').toString(), '***'); +t.equal(new Buffer('KioqKg==', 'base64').toString(), '****'); +t.equal(new Buffer('KioqKio=', 'base64').toString(), '*****'); +t.equal(new Buffer('KioqKioq', 'base64').toString(), '******'); +t.equal(new Buffer('KioqKioqKg==', 'base64').toString(), '*******'); +t.equal(new Buffer('KioqKioqKio=', 'base64').toString(), '********'); +t.equal(new Buffer('KioqKioqKioq', 'base64').toString(), '*********'); +t.equal(new Buffer('KioqKioqKioqKg==', 'base64').toString(), + '**********'); +t.equal(new Buffer('KioqKioqKioqKio=', 'base64').toString(), + '***********'); +t.equal(new Buffer('KioqKioqKioqKioq', 'base64').toString(), + '************'); +t.equal(new Buffer('KioqKioqKioqKioqKg==', 'base64').toString(), + '*************'); +t.equal(new Buffer('KioqKioqKioqKioqKio=', 'base64').toString(), + '**************'); +t.equal(new Buffer('KioqKioqKioqKioqKioq', 'base64').toString(), + '***************'); +t.equal(new Buffer('KioqKioqKioqKioqKioqKg==', 'base64').toString(), + '****************'); +t.equal(new Buffer('KioqKioqKioqKioqKioqKio=', 'base64').toString(), + '*****************'); +t.equal(new Buffer('KioqKioqKioqKioqKioqKioq', 'base64').toString(), + '******************'); +t.equal(new Buffer('KioqKioqKioqKioqKioqKioqKg==', 'base64').toString(), + '*******************'); +t.equal(new Buffer('KioqKioqKioqKioqKioqKioqKio=', 'base64').toString(), + '********************'); + +// no padding, not a multiple of 4 +t.equal(new Buffer('Kg', 'base64').toString(), '*'); +t.equal(new Buffer('Kio', 'base64').toString(), '**'); +t.equal(new Buffer('KioqKg', 'base64').toString(), '****'); +t.equal(new Buffer('KioqKio', 'base64').toString(), '*****'); +t.equal(new Buffer('KioqKioqKg', 'base64').toString(), '*******'); +t.equal(new Buffer('KioqKioqKio', 'base64').toString(), '********'); +t.equal(new Buffer('KioqKioqKioqKg', 'base64').toString(), '**********'); +t.equal(new Buffer('KioqKioqKioqKio', 'base64').toString(), '***********'); +t.equal(new Buffer('KioqKioqKioqKioqKg', 'base64').toString(), + '*************'); +t.equal(new Buffer('KioqKioqKioqKioqKio', 'base64').toString(), + '**************'); +t.equal(new Buffer('KioqKioqKioqKioqKioqKg', 'base64').toString(), + '****************'); +t.equal(new Buffer('KioqKioqKioqKioqKioqKio', 'base64').toString(), + '*****************'); +t.equal(new Buffer('KioqKioqKioqKioqKioqKioqKg', 'base64').toString(), + '*******************'); +t.equal(new Buffer('KioqKioqKioqKioqKioqKioqKio', 'base64').toString(), + '********************'); + +// handle padding graciously, multiple-of-4 or not +t.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw==', + 'base64').length, 32); +t.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw=', + 'base64').length, 32); +t.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw', + 'base64').length, 32); +t.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg==', + 'base64').length, 31); +t.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg=', + 'base64').length, 31); +t.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg', + 'base64').length, 31); + +// This string encodes single '.' character in UTF-16 +var dot = new Buffer('//4uAA==', 'base64'); +t.equal(dot[0], 0xff); +t.equal(dot[1], 0xfe); +t.equal(dot[2], 0x2e); +t.equal(dot[3], 0x00); +t.equal(dot.toString('base64'), '//4uAA=='); + +// Writing base64 at a position > 0 should not mangle the result. +// +// https://github.com/joyent/node/issues/402 +var segments = ['TWFkbmVzcz8h', 'IFRoaXM=', 'IGlz', 'IG5vZGUuanMh']; +var buf = new Buffer(64); +var pos = 0; + +for (var i = 0; i < segments.length; ++i) { + pos += b.write(segments[i], pos, 'base64'); +} +t.equal(b.toString('binary', 0, pos), 'Madness?! This is node.js!'); + +// Creating buffers larger than pool size. +var l = Buffer.poolSize + 5; +var s = ''; +for (i = 0; i < l; i++) { + s += 'h'; +} + +var b = new Buffer(s); + +for (i = 0; i < l; i++) { + t.equal('h'.charCodeAt(0), b[i]); +} + +var sb = b.toString(); +t.equal(sb.length, s.length); +t.equal(sb, s); + + +// Single argument slice +b = new Buffer('abcde'); +t.equal('bcde', b.slice(1).toString()); + +// byte length +t.equal(14, Buffer.byteLength('Il était tué')); +t.equal(14, Buffer.byteLength('Il était tué', 'utf8')); +['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) { + t.equal(24, Buffer.byteLength('Il était tué', encoding)); +}); +t.equal(12, Buffer.byteLength('Il était tué', 'ascii')); +t.equal(12, Buffer.byteLength('Il était tué', 'binary')); + +// slice(0,0).length === 0 +t.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'); +t.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++) { + t.equal(hexb2[i], hexb[i]); +} + +// test an invalid slice end. +// console.log('Try to slice off the end of the buffer'); +var b = new Buffer([1, 2, 3, 4, 5]); +var b2 = b.toString('hex', 1, 10000); +var b3 = b.toString('hex', 1, 5); +var b4 = b.toString('hex', 1); +t.equal(b2, b3); +t.equal(b2, b4); + + +function buildBuffer(data) { + if (Array.isArray(data)) { + var buffer = new 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()); +t.equal('', x.inspect()); + +var z = x.slice(4); +// console.log(z.inspect()); +// console.log(z.length); +t.equal(5, z.length); +t.equal(0x6f, z[0]); +t.equal(0xa3, z[1]); +t.equal(0x62, z[2]); +t.equal(0x61, z[3]); +t.equal(0x72, z[4]); + +var z = x.slice(0); +// console.log(z.inspect()); +// console.log(z.length); +t.equal(z.length, x.length); + +var z = x.slice(0, 4); +// console.log(z.inspect()); +// console.log(z.length); +t.equal(4, z.length); +t.equal(0x81, z[0]); +t.equal(0xa3, z[1]); + +var z = x.slice(0, 9); +// console.log(z.inspect()); +// console.log(z.length); +t.equal(9, z.length); + +var z = x.slice(1, 4); +// console.log(z.inspect()); +// console.log(z.length); +t.equal(3, z.length); +t.equal(0xa3, z[0]); + +var z = x.slice(2, 4); +// console.log(z.inspect()); +// console.log(z.length); +t.equal(2, z.length); +t.equal(0x66, z[0]); +t.equal(0x6f, z[1]); + +t.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); + t.equal(b.toString(encoding), 'あいうえお'); +}); + +// Binary encoding should write only one byte per character. +var b = Buffer([0xde, 0xad, 0xbe, 0xef]); +var s = String.fromCharCode(0xffff); +b.write(s, 0, 'binary'); +t.equal(0xff, b[0]); +t.equal(0xad, b[1]); +t.equal(0xbe, b[2]); +t.equal(0xef, b[3]); +s = String.fromCharCode(0xaaee); +b.write(s, 0, 'binary'); +t.equal(0xee, b[0]); +t.equal(0xad, b[1]); +t.equal(0xbe, b[2]); +t.equal(0xef, b[3]); + +// #1210 Test UTF-8 string includes null character +var buf = new Buffer('\0'); +t.equal(buf.length, 1); +buf = new Buffer('\0\0'); +t.equal(buf.length, 2); + +buf = new Buffer(2); +var written = buf.write(''); // 0byte +t.equal(written, 0); +written = buf.write('\0'); // 1byte (v8 adds null terminator) +t.equal(written, 1); +written = buf.write('a\0'); // 1byte * 2 +t.equal(written, 2); +written = buf.write('あ'); // 3bytes +t.equal(written, 0); +written = buf.write('\0あ'); // 1byte + 3bytes +t.equal(written, 1); +written = buf.write('\0\0あ'); // 1byte * 2 + 3bytes +t.equal(written, 2); + +buf = new Buffer(10); +written = buf.write('あいう'); // 3bytes * 3 (v8 adds null terminator) +t.equal(written, 9); +written = buf.write('あいう\0'); // 3bytes * 3 + 1byte +t.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); +t.equal(written, 2); +t.equal(buf[0], 0xFF); +t.equal(buf[1], 0x61); +t.equal(buf[2], 0x62); +t.equal(buf[3], 0xFF); + +buf.fill(0xFF); +written = buf.write('abcd', 1, 4); +// console.log(buf); +t.equal(written, 3); +t.equal(buf[0], 0xFF); +t.equal(buf[1], 0x61); +t.equal(buf[2], 0x62); +t.equal(buf[3], 0x63); + +buf.fill(0xFF); +written = buf.write('abcd', 'utf8', 1, 2); // legacy style +// console.log(buf); +t.equal(written, 2); +t.equal(buf[0], 0xFF); +t.equal(buf[1], 0x61); +t.equal(buf[2], 0x62); +t.equal(buf[3], 0xFF); + +buf.fill(0xFF); +written = buf.write('abcdef', 1, 2, 'hex'); +// console.log(buf); +t.equal(written, 2); +t.equal(buf[0], 0xFF); +t.equal(buf[1], 0xAB); +t.equal(buf[2], 0xCD); +t.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); + t.equal(written, 2); + t.equal(buf[0], 0x61); + t.equal(buf[1], 0x00); + t.equal(buf[2], 0xFF); + t.equal(buf[3], 0xFF); +}); + +// test offset returns are correct +var b = new Buffer(16); +t.equal(4, b.writeUInt32LE(0, 0)); +t.equal(6, b.writeUInt16LE(0, 4)); +t.equal(7, b.writeUInt8(0, 6)); +t.equal(8, b.writeInt8(0, 7)); +t.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/ +buf = new Buffer('ab\ud800cd', 'utf8'); +t.equal(buf[0], 0x61); +t.equal(buf[1], 0x62); +t.equal(buf[2], 0xef); +t.equal(buf[3], 0xbf); +t.equal(buf[4], 0xbd); +t.equal(buf[5], 0x63); +t.equal(buf[6], 0x64); + +// test for buffer overrun +buf = new Buffer([0, 0, 0, 0, 0]); // length: 5 +var sub = buf.slice(0, 4); // length: 4 +written = sub.write('12345', 'binary'); +t.equal(written, 4); +t.equal(buf[4], 0); + +// Check for fractional length args, junk length args, etc. +// https://github.com/joyent/node/issues/1758 +Buffer(3.3).toString(); // throws bad argument error in commit 43cb4ec +t.equal(Buffer(-1).length, 0); +t.equal(Buffer(NaN).length, 0); +t.equal(Buffer(3.3).length, 3); +t.equal(Buffer({length: 3.3}).length, 3); +t.equal(Buffer({length: 'BAM'}).length, 0); + +// Make sure that strings are not coerced to numbers. +t.equal(Buffer('99').length, 2); +t.equal(Buffer('13.37').length, 5); + +// Ensure that the length argument is respected. +'ascii utf8 hex base64 binary'.split(' ').forEach(function(enc) { + t.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'); +t.equal(b.toString(), 'xxx'); + +// issue GH-3416 +Buffer(Buffer(0), 0, 0); + +[ 'hex', + 'utf8', + 'utf-8', + 'ascii', + 'binary', + 'base64', + 'ucs2', + 'ucs-2', + 'utf16le', + 'utf-16le' ].forEach(function(enc) { + t.equal(Buffer.isEncoding(enc), true); + }); + +[ 'utf9', + 'utf-7', + 'Unicode-FTW', + 'new gnu gun' ].forEach(function(enc) { + t.equal(Buffer.isEncoding(enc), false); + }); + + +// GH-5110 +(function () { + var buffer = new Buffer('test'), + string = JSON.stringify(buffer); + + t.equal(string, '{"type":"Buffer","data":[116,101,115,116]}'); + + t.deepEqual(buffer, JSON.parse(string, function(key, value) { + return value && value.type === 'Buffer' + ? new Buffer(value.data) + : value; + })); +})(); + +// issue GH-7849 +(function() { + var buf = new Buffer('test'); + var json = JSON.stringify(buf); + var obj = JSON.parse(json); + var copy = new Buffer(obj); + + t.ok(buf.equals(copy)); +})(); + +// issue GH-4331 +t.throws(function() { + new Buffer(0xFFFFFFFF); +}, RangeError); +t.throws(function() { + new Buffer(0xFFFFFFFFF); +}, RangeError); + + +// attempt to overflow buffers, similar to previous bug in array buffers +t.throws(function() { + var buf = new Buffer(8); + buf.readFloatLE(0xffffffff); +}, RangeError); + +t.throws(function() { + var buf = new Buffer(8); + buf.writeFloatLE(0.0, 0xffffffff); +}, RangeError); + +t.throws(function() { + var buf = new Buffer(8); + buf.readFloatLE(0xffffffff); +}, RangeError); + +t.throws(function() { + var buf = new Buffer(8); + buf.writeFloatLE(0.0, 0xffffffff); +}, RangeError); + + +// ensure negative values can't get past offset +t.throws(function() { + var buf = new Buffer(8); + buf.readFloatLE(-1); +}, RangeError); + +t.throws(function() { + var buf = new Buffer(8); + buf.writeFloatLE(0.0, -1); +}, RangeError); + +t.throws(function() { + var buf = new Buffer(8); + buf.readFloatLE(-1); +}, RangeError); + +t.throws(function() { + var buf = new Buffer(8); + buf.writeFloatLE(0.0, -1); +}, RangeError); + +// offset checks +var buf = new Buffer(0); + +t.throws(function() { buf.readUInt8(0); }, RangeError); +t.throws(function() { buf.readInt8(0); }, RangeError); + +var buf = new Buffer([0xFF]); + +t.equal(buf.readUInt8(0), 255); +t.equal(buf.readInt8(0), -1); + +[16, 32].forEach(function(bits) { + var buf = new Buffer(bits / 8 - 1); + + t.throws(function() { buf['readUInt' + bits + 'BE'](0); }, + RangeError, + 'readUInt' + bits + 'BE'); + + t.throws(function() { buf['readUInt' + bits + 'LE'](0); }, + RangeError, + 'readUInt' + bits + 'LE'); + + t.throws(function() { buf['readInt' + bits + 'BE'](0); }, + RangeError, + 'readInt' + bits + 'BE()'); + + t.throws(function() { buf['readInt' + bits + 'LE'](0); }, + RangeError, + 'readInt' + bits + 'LE()'); +}); + +[16, 32].forEach(function(bits) { + var buf = new Buffer([0xFF, 0xFF, 0xFF, 0xFF]); + + t.equal(buf['readUInt' + bits + 'BE'](0), + (0xFFFFFFFF >>> (32 - bits))); + + t.equal(buf['readUInt' + bits + 'LE'](0), + (0xFFFFFFFF >>> (32 - bits))); + + t.equal(buf['readInt' + bits + 'BE'](0), + (0xFFFFFFFF >> (32 - bits))); + + t.equal(buf['readInt' + bits + 'LE'](0), + (0xFFFFFFFF >> (32 - bits))); +}); + +// test for common read(U)IntLE/BE +(function() { + var buf = new Buffer([0x01, 0x02, 0x03, 0x04, 0x05, 0x06]); + + t.equal(buf.readUIntLE(0, 1), 0x01); + t.equal(buf.readUIntBE(0, 1), 0x01); + t.equal(buf.readUIntLE(0, 3), 0x030201); + t.equal(buf.readUIntBE(0, 3), 0x010203); + t.equal(buf.readUIntLE(0, 5), 0x0504030201); + t.equal(buf.readUIntBE(0, 5), 0x0102030405); + t.equal(buf.readUIntLE(0, 6), 0x060504030201); + t.equal(buf.readUIntBE(0, 6), 0x010203040506); + t.equal(buf.readIntLE(0, 1), 0x01); + t.equal(buf.readIntBE(0, 1), 0x01); + t.equal(buf.readIntLE(0, 3), 0x030201); + t.equal(buf.readIntBE(0, 3), 0x010203); + t.equal(buf.readIntLE(0, 5), 0x0504030201); + t.equal(buf.readIntBE(0, 5), 0x0102030405); + t.equal(buf.readIntLE(0, 6), 0x060504030201); + t.equal(buf.readIntBE(0, 6), 0x010203040506); +})(); + +// test for common write(U)IntLE/BE +(function() { + var buf = new Buffer(3); + buf.writeUIntLE(0x123456, 0, 3); + t.deepEqual(buf.toJSON().data, [0x56, 0x34, 0x12]); + t.equal(buf.readUIntLE(0, 3), 0x123456); + + buf = new Buffer(3); + buf.writeUIntBE(0x123456, 0, 3); + t.deepEqual(buf.toJSON().data, [0x12, 0x34, 0x56]); + t.equal(buf.readUIntBE(0, 3), 0x123456); + + buf = new Buffer(3); + buf.writeIntLE(0x123456, 0, 3); + t.deepEqual(buf.toJSON().data, [0x56, 0x34, 0x12]); + t.equal(buf.readIntLE(0, 3), 0x123456); + + buf = new Buffer(3); + buf.writeIntBE(0x123456, 0, 3); + t.deepEqual(buf.toJSON().data, [0x12, 0x34, 0x56]); + t.equal(buf.readIntBE(0, 3), 0x123456); + + buf = new Buffer(3); + buf.writeIntLE(-0x123456, 0, 3); + t.deepEqual(buf.toJSON().data, [0xaa, 0xcb, 0xed]); + t.equal(buf.readIntLE(0, 3), -0x123456); + + buf = new Buffer(3); + buf.writeIntBE(-0x123456, 0, 3); + t.deepEqual(buf.toJSON().data, [0xed, 0xcb, 0xaa]); + t.equal(buf.readIntBE(0, 3), -0x123456); + + buf = new Buffer(5); + buf.writeUIntLE(0x1234567890, 0, 5); + t.deepEqual(buf.toJSON().data, [0x90, 0x78, 0x56, 0x34, 0x12]); + t.equal(buf.readUIntLE(0, 5), 0x1234567890); + + buf = new Buffer(5); + buf.writeUIntBE(0x1234567890, 0, 5); + t.deepEqual(buf.toJSON().data, [0x12, 0x34, 0x56, 0x78, 0x90]); + t.equal(buf.readUIntBE(0, 5), 0x1234567890); + + buf = new Buffer(5); + buf.writeIntLE(0x1234567890, 0, 5); + t.deepEqual(buf.toJSON().data, [0x90, 0x78, 0x56, 0x34, 0x12]); + t.equal(buf.readIntLE(0, 5), 0x1234567890); + + buf = new Buffer(5); + buf.writeIntBE(0x1234567890, 0, 5); + t.deepEqual(buf.toJSON().data, [0x12, 0x34, 0x56, 0x78, 0x90]); + t.equal(buf.readIntBE(0, 5), 0x1234567890); + + buf = new Buffer(5); + buf.writeIntLE(-0x1234567890, 0, 5); + t.deepEqual(buf.toJSON().data, [0x70, 0x87, 0xa9, 0xcb, 0xed]); + t.equal(buf.readIntLE(0, 5), -0x1234567890); + + buf = new Buffer(5); + buf.writeIntBE(-0x1234567890, 0, 5); + t.deepEqual(buf.toJSON().data, [0xed, 0xcb, 0xa9, 0x87, 0x70]); + t.equal(buf.readIntBE(0, 5), -0x1234567890); +})(); + +// test Buffer slice +(function() { + var buf = new Buffer('0123456789'); + t.equal(buf.slice(-10, 10).toString(), '0123456789'); + t.equal(buf.slice(-20, 10).toString(), '0123456789'); + t.equal(buf.slice(-20, -10).toString(), ''); + t.equal(buf.slice(0, -1).toString(), '012345678'); + t.equal(buf.slice(2, -2).toString(), '234567'); + t.equal(buf.slice(0, 65536).toString(), '0123456789'); + t.equal(buf.slice(65536, 0).toString(), ''); + for (var i = 0, s = buf.toString(); i < buf.length; ++i) { + t.equal(buf.slice(-i).toString(), s.slice(-i)); + t.equal(buf.slice(0, -i).toString(), s.slice(0, -i)); + } + // try to slice a zero length Buffer + // see https://github.com/joyent/node/issues/5881 + SlowBuffer(0).slice(0, 1); + // make sure a zero length slice doesn't set the .parent attribute + t.equal(Buffer(5).slice(0,0).parent, undefined); + // and make sure a proper slice does have a parent + t.ok(typeof Buffer(5).slice(0, 5).parent === 'object'); +})(); + +// Make sure byteLength properly checks for base64 padding +t.equal(Buffer.byteLength('aaa=', 'base64'), 2); +t.equal(Buffer.byteLength('aaaa==', 'base64'), 3); + +// Regression test for #5482: should throw but not t in C++ land. +t.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. +(function() { + 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); + t.equal(b.length, a.length); + t.equal(c.length, a.length); + for (var i = 0, k = a.length; i < k; ++i) { + t.equal(a[i], i); + t.equal(b[i], i); + t.equal(c[i], i); + } +})(); + + +t.throws(function () { + new Buffer(smalloc.kMaxLength + 1); +}, RangeError); + +t.throws(function () { + new SlowBuffer(smalloc.kMaxLength + 1); +}, RangeError); + +// Test truncation after decode +var crypto = require('crypto'); + +var b1 = new Buffer('YW55=======', 'base64'); +var b2 = new Buffer('YW55', 'base64'); + +t.equal( + 1 /*crypto.createHash('sha1').update(b1).digest('hex')*/, + 1 /*crypto.createHash('sha1').update(b2).digest('hex')*/ +); + +// Test Compare +var b = new Buffer(1).fill('a'); +var c = new Buffer(1).fill('c'); +var d = new Buffer(2).fill('aa'); + +t.equal(b.compare(c), -1); +t.equal(c.compare(d), 1); +t.equal(d.compare(b), 1); +t.equal(b.compare(d), -1); + +t.equal(Buffer.compare(b, c), -1); +t.equal(Buffer.compare(c, d), 1); +t.equal(Buffer.compare(d, b), 1); +t.equal(Buffer.compare(b, d), -1); + +t.throws(function() { + var b = new Buffer(1); + Buffer.compare(b, 'abc'); +}); + +t.throws(function() { + var b = new Buffer(1); + Buffer.compare('abc', b); +}); + +t.throws(function() { + var b = new 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'); + +t.ok(b.equals(c)); +t.ok(!c.equals(d)); +t.ok(!d.equals(e)); + +t.throws(function() { + var b = new Buffer(1); + b.equals('abc'); +}); + + +t.end() +}) \ No newline at end of file -- 2.34.1