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'use strict';
var common = require('../common');
var assert = require('assert');
var Buffer = require('buffer').Buffer;
var SlowBuffer = require('buffer').SlowBuffer;
var smalloc = require('smalloc');
// 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]);
}
15 years ago
var c = new Buffer(512);
console.log('c.length == %d', c.length);
assert.strictEqual(512, c.length);
15 years ago
// 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 (; i < 32; i++)
assert.equal(1, buf[i]);
for (; 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);
15 years ago
for (var i = 0; i < c.length; i++) {
assert.strictEqual(b[i], c[i]);
15 years ago
}
// 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 = new Buffer(10);
bb.fill('hello crazy world');
Merge remote-tracking branch &#39;ry/v0.8&#39; into master Conflicts: AUTHORS ChangeLog deps/npm/html/api/bin.html deps/npm/html/api/bugs.html deps/npm/html/api/commands.html deps/npm/html/api/config.html deps/npm/html/api/deprecate.html deps/npm/html/api/docs.html deps/npm/html/api/edit.html deps/npm/html/api/explore.html deps/npm/html/api/help-search.html deps/npm/html/api/init.html deps/npm/html/api/install.html deps/npm/html/api/link.html deps/npm/html/api/load.html deps/npm/html/api/ls.html deps/npm/html/api/npm.html deps/npm/html/api/outdated.html deps/npm/html/api/owner.html deps/npm/html/api/pack.html deps/npm/html/api/prefix.html deps/npm/html/api/prune.html deps/npm/html/api/publish.html deps/npm/html/api/rebuild.html deps/npm/html/api/restart.html deps/npm/html/api/root.html deps/npm/html/api/run-script.html deps/npm/html/api/search.html deps/npm/html/api/shrinkwrap.html deps/npm/html/api/start.html deps/npm/html/api/stop.html deps/npm/html/api/submodule.html deps/npm/html/api/tag.html deps/npm/html/api/test.html deps/npm/html/api/uninstall.html deps/npm/html/api/unpublish.html deps/npm/html/api/update.html deps/npm/html/api/version.html deps/npm/html/api/view.html deps/npm/html/api/whoami.html deps/npm/html/doc/README.html deps/npm/html/doc/adduser.html deps/npm/html/doc/bin.html deps/npm/html/doc/bugs.html deps/npm/html/doc/build.html deps/npm/html/doc/bundle.html deps/npm/html/doc/cache.html deps/npm/html/doc/changelog.html deps/npm/html/doc/coding-style.html deps/npm/html/doc/completion.html deps/npm/html/doc/config.html deps/npm/html/doc/dedupe.html deps/npm/html/doc/deprecate.html deps/npm/html/doc/developers.html deps/npm/html/doc/disputes.html deps/npm/html/doc/docs.html deps/npm/html/doc/edit.html deps/npm/html/doc/explore.html deps/npm/html/doc/faq.html deps/npm/html/doc/folders.html deps/npm/html/doc/global.html deps/npm/html/doc/help-search.html deps/npm/html/doc/help.html deps/npm/html/doc/index.html deps/npm/html/doc/init.html deps/npm/html/doc/install.html deps/npm/html/doc/json.html deps/npm/html/doc/link.html deps/npm/html/doc/ls.html deps/npm/html/doc/npm.html deps/npm/html/doc/outdated.html deps/npm/html/doc/owner.html deps/npm/html/doc/pack.html deps/npm/html/doc/prefix.html deps/npm/html/doc/prune.html deps/npm/html/doc/publish.html deps/npm/html/doc/rebuild.html deps/npm/html/doc/registry.html deps/npm/html/doc/removing-npm.html deps/npm/html/doc/restart.html deps/npm/html/doc/rm.html deps/npm/html/doc/root.html deps/npm/html/doc/run-script.html deps/npm/html/doc/scripts.html deps/npm/html/doc/search.html deps/npm/html/doc/semver.html deps/npm/html/doc/shrinkwrap.html deps/npm/html/doc/star.html deps/npm/html/doc/start.html deps/npm/html/doc/stop.html deps/npm/html/doc/submodule.html deps/npm/html/doc/tag.html deps/npm/html/doc/test.html deps/npm/html/doc/uninstall.html deps/npm/html/doc/unpublish.html deps/npm/html/doc/update.html deps/npm/html/doc/version.html deps/npm/html/doc/view.html deps/npm/html/doc/whoami.html deps/npm/man/man1/global.1 deps/npm/man/man1/ls.1 deps/npm/man/man1/npm.1 deps/npm/man/man1/rm.1 deps/npm/man/man3/npm.3 deps/npm/node_modules/glob/glob.js deps/npm/node_modules/glob/package.json deps/npm/node_modules/node-gyp/package.json deps/npm/node_modules/npm-registry-client/package.json deps/npm/node_modules/npmconf/package.json deps/npm/node_modules/read-installed/package.json deps/npm/node_modules/rimraf/package.json deps/npm/node_modules/rimraf/rimraf.js deps/npm/package.json deps/uv/src/win/error.c doc/api/crypto.markdown lib/zlib.js src/node_version.h src/node_zlib.cc test/simple/test-buffer.js
12 years ago
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;
}
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
// 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);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
// when sourceStart is greater than sourceEnd, zero copied
assert.equal(b.copy(c, 0, 100, 10), 0);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
// 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 {
var copied = b.toString('invalid');
} catch (err) {
caught_error = err;
}
assert.strictEqual('Unknown encoding: invalid', caught_error.message);
// invalid encoding for Buffer.write
caught_error = null;
try {
var copied = b.write('test string', 0, 5, 'invalid');
} catch (err) {
caught_error = err;
}
assert.strictEqual('Unknown encoding: invalid', caught_error.message);
// try to create 0-length buffers
new Buffer('');
new Buffer('', 'ascii');
new Buffer('', 'binary');
new Buffer(0);
// try to write a 0-length string beyond the end of b
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
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(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);
15 years ago
// try to toString() a 0-length slice of a buffer, both within and without the
// valid buffer range
assert.equal(new Buffer('abc').toString('ascii', 0, 0), '');
assert.equal(new Buffer('abc').toString('ascii', -100, -100), '');
assert.equal(new Buffer('abc').toString('ascii', 100, 100), '');
// try toString() with a object as a encoding
assert.equal(new Buffer('abc').toString({toString: function() {
return 'ascii';
}}), 'abc');
// testing for smart defaults and ability to pass string values as offset
var writeTest = new Buffer('abcdes');
writeTest.write('n', 'ascii');
writeTest.write('o', 'ascii', '1');
writeTest.write('d', '2', 'ascii');
writeTest.write('e', 3, 'ascii');
writeTest.write('j', 'ascii', 4);
assert.equal(writeTest.toString(), 'nodejs');
// ASCII slice test
var asciiString = 'hello world';
var offset = 100;
for (var i = 0; i < asciiString.length; i++) {
b[i] = asciiString.charCodeAt(i);
}
var asciiSlice = b.toString('ascii', 0, asciiString.length);
assert.equal(asciiString, asciiSlice);
var written = b.write(asciiString, offset, 'ascii');
assert.equal(asciiString.length, written);
var asciiSlice = b.toString('ascii', offset, offset + asciiString.length);
assert.equal(asciiString, asciiSlice);
var sliceA = b.slice(offset, offset + asciiString.length);
var sliceB = b.slice(offset, offset + asciiString.length);
for (var i = 0; i < asciiString.length; i++) {
assert.equal(sliceA[i], sliceB[i]);
}
// 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(b, c.parent);
assert.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);
assert.equal(slice, testValue);
// Test triple slice
var a = new Buffer(8);
for (var i = 0; i < 8; i++) a[i] = i;
var b = a.slice(4, 8);
assert.equal(4, b[0]);
assert.equal(5, b[1]);
assert.equal(6, b[2]);
assert.equal(7, b[3]);
var c = b.slice(2, 4);
assert.equal(6, c[0]);
assert.equal(7, c[1]);
var d = new Buffer([23, 42, 255]);
assert.equal(d.length, 3);
assert.equal(d[0], 23);
assert.equal(d[1], 42);
assert.equal(d[2], 255);
assert.deepEqual(d, new Buffer(d));
var e = new Buffer('über');
console.error('uber: \'%s\'', e.toString());
assert.deepEqual(e, new Buffer([195, 188, 98, 101, 114]));
var f = new Buffer('über', 'ascii');
console.error('f.length: %d (should be 4)', f.length);
assert.deepEqual(f, new Buffer([252, 98, 101, 114]));
['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) {
var f = new Buffer('über', encoding);
console.error('f.length: %d (should be 8)', f.length);
assert.deepEqual(f, new Buffer([252, 0, 98, 0, 101, 0, 114, 0]));
var f = new Buffer('привет', encoding);
console.error('f.length: %d (should be 12)', f.length);
assert.deepEqual(f, new Buffer([63, 4, 64, 4, 56, 4, 50, 4, 53, 4, 66, 4]));
assert.equal(f.toString(encoding), 'привет');
var f = new Buffer([0, 0, 0, 0, 0]);
assert.equal(f.length, 5);
var size = f.write('あいうえお', encoding);
console.error('bytes written to buffer: %d (should be 4)', size);
assert.equal(size, 4);
assert.deepEqual(f, new Buffer([0x42, 0x30, 0x44, 0x30, 0x00]));
});
var f = new Buffer('\uD83D\uDC4D', 'utf-16le'); // THUMBS UP SIGN (U+1F44D)
assert.equal(f.length, 4);
assert.deepEqual(f, new Buffer('3DD84DDC', 'hex'));
var arrayIsh = {0: 0, 1: 1, 2: 2, 3: 3, length: 4};
var g = new Buffer(arrayIsh);
assert.deepEqual(g, new Buffer([0, 1, 2, 3]));
var strArrayIsh = {0: '0', 1: '1', 2: '2', 3: '3', length: 4};
g = new Buffer(strArrayIsh);
assert.deepEqual(g, new Buffer([0, 1, 2, 3]));
//
// Test toString('base64')
//
assert.equal('TWFu', (new Buffer('Man')).toString('base64'));
// test that regular and URL-safe base64 both work
var expected = [0xff, 0xff, 0xbe, 0xff, 0xef, 0xbf, 0xfb, 0xef, 0xff];
assert.deepEqual(Buffer('//++/++/++//', 'base64'), Buffer(expected));
assert.deepEqual(Buffer('__--_--_--__', 'base64'), Buffer(expected));
// big example
var quote = 'Man is distinguished, not only by his reason, but by this ' +
'singular passion from other animals, which is a lust ' +
'of the mind, that by a perseverance of delight in the continued ' +
'and indefatigable generation of knowledge, exceeds the short ' +
'vehemence of any carnal pleasure.';
var expected = 'TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24s' +
'IGJ1dCBieSB0aGlzIHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltY' +
'WxzLCB3aGljaCBpcyBhIGx1c3Qgb2YgdGhlIG1pbmQsIHRoYXQgYnkgYSBwZX' +
'JzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGludWVkIGFuZCBpbmR' +
'lZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo' +
'ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=';
assert.equal(expected, (new Buffer(quote)).toString('base64'));
b = new Buffer(1024);
var bytesWritten = b.write(expected, 0, 'base64');
assert.equal(quote.length, bytesWritten);
assert.equal(quote, b.toString('ascii', 0, quote.length));
// check that the base64 decoder ignores whitespace
var expectedWhite = expected.slice(0, 60) + ' \n' +
expected.slice(60, 120) + ' \n' +
expected.slice(120, 180) + ' \n' +
expected.slice(180, 240) + ' \n' +
expected.slice(240, 300) + '\n' +
expected.slice(300, 360) + '\n';
b = new Buffer(1024);
bytesWritten = b.write(expectedWhite, 0, 'base64');
assert.equal(quote.length, bytesWritten);
assert.equal(quote, b.toString('ascii', 0, quote.length));
// check that the base64 decoder on the constructor works
// even in the presence of whitespace.
b = new Buffer(expectedWhite, 'base64');
assert.equal(quote.length, b.length);
assert.equal(quote, b.toString('ascii', 0, quote.length));
// check that the base64 decoder ignores illegal chars
var expectedIllegal = expected.slice(0, 60) + ' \x80' +
expected.slice(60, 120) + ' \xff' +
expected.slice(120, 180) + ' \x00' +
expected.slice(180, 240) + ' \x98' +
expected.slice(240, 300) + '\x03' +
expected.slice(300, 360);
b = new Buffer(expectedIllegal, 'base64');
assert.equal(quote.length, b.length);
assert.equal(quote, b.toString('ascii', 0, quote.length));
assert.equal(new Buffer('', 'base64').toString(), '');
assert.equal(new Buffer('K', 'base64').toString(), '');
// multiple-of-4 with padding
assert.equal(new Buffer('Kg==', 'base64').toString(), '*');
assert.equal(new Buffer('Kio=', 'base64').toString(), '**');
assert.equal(new Buffer('Kioq', 'base64').toString(), '***');
assert.equal(new Buffer('KioqKg==', 'base64').toString(), '****');
assert.equal(new Buffer('KioqKio=', 'base64').toString(), '*****');
assert.equal(new Buffer('KioqKioq', 'base64').toString(), '******');
assert.equal(new Buffer('KioqKioqKg==', 'base64').toString(), '*******');
assert.equal(new Buffer('KioqKioqKio=', 'base64').toString(), '********');
assert.equal(new Buffer('KioqKioqKioq', 'base64').toString(), '*********');
assert.equal(new Buffer('KioqKioqKioqKg==', 'base64').toString(),
'**********');
assert.equal(new Buffer('KioqKioqKioqKio=', 'base64').toString(),
'***********');
assert.equal(new Buffer('KioqKioqKioqKioq', 'base64').toString(),
'************');
assert.equal(new Buffer('KioqKioqKioqKioqKg==', 'base64').toString(),
'*************');
assert.equal(new Buffer('KioqKioqKioqKioqKio=', 'base64').toString(),
'**************');
assert.equal(new Buffer('KioqKioqKioqKioqKioq', 'base64').toString(),
'***************');
assert.equal(new Buffer('KioqKioqKioqKioqKioqKg==', 'base64').toString(),
'****************');
assert.equal(new Buffer('KioqKioqKioqKioqKioqKio=', 'base64').toString(),
'*****************');
assert.equal(new Buffer('KioqKioqKioqKioqKioqKioq', 'base64').toString(),
'******************');
assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKg==', 'base64').toString(),
'*******************');
assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKio=', 'base64').toString(),
'********************');
// no padding, not a multiple of 4
assert.equal(new Buffer('Kg', 'base64').toString(), '*');
assert.equal(new Buffer('Kio', 'base64').toString(), '**');
assert.equal(new Buffer('KioqKg', 'base64').toString(), '****');
assert.equal(new Buffer('KioqKio', 'base64').toString(), '*****');
assert.equal(new Buffer('KioqKioqKg', 'base64').toString(), '*******');
assert.equal(new Buffer('KioqKioqKio', 'base64').toString(), '********');
assert.equal(new Buffer('KioqKioqKioqKg', 'base64').toString(), '**********');
assert.equal(new Buffer('KioqKioqKioqKio', 'base64').toString(), '***********');
assert.equal(new Buffer('KioqKioqKioqKioqKg', 'base64').toString(),
'*************');
assert.equal(new Buffer('KioqKioqKioqKioqKio', 'base64').toString(),
'**************');
assert.equal(new Buffer('KioqKioqKioqKioqKioqKg', 'base64').toString(),
'****************');
assert.equal(new Buffer('KioqKioqKioqKioqKioqKio', 'base64').toString(),
'*****************');
assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKg', 'base64').toString(),
'*******************');
assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKio', 'base64').toString(),
'********************');
// handle padding graciously, multiple-of-4 or not
assert.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw==',
'base64').length, 32);
assert.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw=',
'base64').length, 32);
assert.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw',
'base64').length, 32);
assert.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg==',
'base64').length, 31);
assert.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg=',
'base64').length, 31);
assert.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg',
'base64').length, 31);
// This string encodes single '.' character in UTF-16
var dot = new Buffer('//4uAA==', 'base64');
assert.equal(dot[0], 0xff);
assert.equal(dot[1], 0xfe);
assert.equal(dot[2], 0x2e);
assert.equal(dot[3], 0x00);
assert.equal(dot.toString('base64'), '//4uAA==');
// Writing base64 at a position > 0 should not mangle the result.
//
// https://github.com/joyent/node/issues/402
var segments = ['TWFkbmVzcz8h', 'IFRoaXM=', 'IGlz', 'IG5vZGUuanMh'];
var buf = new Buffer(64);
var pos = 0;
for (var i = 0; i < segments.length; ++i) {
pos += b.write(segments[i], pos, 'base64');
}
assert.equal(b.toString('binary', 0, pos), 'Madness?! This is node.js!');
// Creating buffers larger than pool size.
var l = Buffer.poolSize + 5;
var s = '';
for (i = 0; i < l; i++) {
s += 'h';
}
var b = new Buffer(s);
for (i = 0; i < l; i++) {
assert.equal('h'.charCodeAt(0), b[i]);
}
var sb = b.toString();
assert.equal(sb.length, s.length);
assert.equal(sb, s);
// Single argument slice
b = new Buffer('abcde');
assert.equal('bcde', b.slice(1).toString());
// slice(0,0).length === 0
assert.equal(0, Buffer('hello').slice(0, 0).length);
// test hex toString
console.log('Create hex string from buffer');
var hexb = new Buffer(256);
for (var i = 0; i < 256; i++) {
hexb[i] = i;
}
var hexStr = hexb.toString('hex');
assert.equal(hexStr,
'000102030405060708090a0b0c0d0e0f' +
'101112131415161718191a1b1c1d1e1f' +
'202122232425262728292a2b2c2d2e2f' +
'303132333435363738393a3b3c3d3e3f' +
'404142434445464748494a4b4c4d4e4f' +
'505152535455565758595a5b5c5d5e5f' +
'606162636465666768696a6b6c6d6e6f' +
'707172737475767778797a7b7c7d7e7f' +
'808182838485868788898a8b8c8d8e8f' +
'909192939495969798999a9b9c9d9e9f' +
'a0a1a2a3a4a5a6a7a8a9aaabacadaeaf' +
'b0b1b2b3b4b5b6b7b8b9babbbcbdbebf' +
'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf' +
'd0d1d2d3d4d5d6d7d8d9dadbdcdddedf' +
'e0e1e2e3e4e5e6e7e8e9eaebecedeeef' +
'f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff');
console.log('Create buffer from hex string');
var hexb2 = new Buffer(hexStr, 'hex');
for (var i = 0; i < 256; i++) {
assert.equal(hexb2[i], hexb[i]);
}
// test an invalid slice end.
console.log('Try to slice off the end of the buffer');
var b = new Buffer([1, 2, 3, 4, 5]);
var b2 = b.toString('hex', 1, 10000);
var b3 = b.toString('hex', 1, 5);
var b4 = b.toString('hex', 1);
assert.equal(b2, b3);
assert.equal(b2, b4);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
function buildBuffer(data) {
if (Array.isArray(data)) {
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
var buffer = new Buffer(data.length);
data.forEach(function(v, k) {
buffer[k] = v;
});
return buffer;
}
return null;
}
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
var x = buildBuffer([0x81, 0xa3, 0x66, 0x6f, 0x6f, 0xa3, 0x62, 0x61, 0x72]);
console.log(x.inspect());
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
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) {
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
var b = new Buffer(10);
b.write('あいうえお', encoding);
assert.equal(b.toString(encoding), 'あいうえお');
});
// Binary encoding should write only one byte per character.
var b = Buffer([0xde, 0xad, 0xbe, 0xef]);
var s = String.fromCharCode(0xffff);
b.write(s, 0, 'binary');
assert.equal(0xff, b[0]);
assert.equal(0xad, b[1]);
assert.equal(0xbe, b[2]);
assert.equal(0xef, b[3]);
s = String.fromCharCode(0xaaee);
b.write(s, 0, 'binary');
assert.equal(0xee, b[0]);
assert.equal(0xad, b[1]);
assert.equal(0xbe, b[2]);
assert.equal(0xef, b[3]);
// #1210 Test UTF-8 string includes null character
var buf = new Buffer('\0');
assert.equal(buf.length, 1);
buf = new Buffer('\0\0');
assert.equal(buf.length, 2);
buf = new Buffer(2);
var written = buf.write(''); // 0byte
assert.equal(written, 0);
written = buf.write('\0'); // 1byte (v8 adds null terminator)
assert.equal(written, 1);
written = buf.write('a\0'); // 1byte * 2
assert.equal(written, 2);
written = buf.write('あ'); // 3bytes
assert.equal(written, 0);
written = buf.write('\0あ'); // 1byte + 3bytes
assert.equal(written, 1);
written = buf.write('\0\0あ'); // 1byte * 2 + 3bytes
assert.equal(written, 2);
buf = new Buffer(10);
written = buf.write('あいう'); // 3bytes * 3 (v8 adds null terminator)
assert.equal(written, 9);
written = buf.write('あいう\0'); // 3bytes * 3 + 1byte
assert.equal(written, 10);
// #243 Test write() with maxLength
var buf = new Buffer(4);
buf.fill(0xFF);
var written = buf.write('abcd', 1, 2, 'utf8');
console.log(buf);
assert.equal(written, 2);
assert.equal(buf[0], 0xFF);
assert.equal(buf[1], 0x61);
assert.equal(buf[2], 0x62);
assert.equal(buf[3], 0xFF);
buf.fill(0xFF);
written = buf.write('abcd', 1, 4);
console.log(buf);
assert.equal(written, 3);
assert.equal(buf[0], 0xFF);
assert.equal(buf[1], 0x61);
assert.equal(buf[2], 0x62);
assert.equal(buf[3], 0x63);
buf.fill(0xFF);
written = buf.write('abcd', 'utf8', 1, 2); // legacy style
console.log(buf);
assert.equal(written, 2);
assert.equal(buf[0], 0xFF);
assert.equal(buf[1], 0x61);
assert.equal(buf[2], 0x62);
assert.equal(buf[3], 0xFF);
buf.fill(0xFF);
written = buf.write('abcdef', 1, 2, 'hex');
console.log(buf);
assert.equal(written, 2);
assert.equal(buf[0], 0xFF);
assert.equal(buf[1], 0xAB);
assert.equal(buf[2], 0xCD);
assert.equal(buf[3], 0xFF);
['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) {
buf.fill(0xFF);
written = buf.write('abcd', 0, 2, encoding);
console.log(buf);
assert.equal(written, 2);
assert.equal(buf[0], 0x61);
assert.equal(buf[1], 0x00);
assert.equal(buf[2], 0xFF);
assert.equal(buf[3], 0xFF);
});
// test 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/
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
buf = new Buffer([0, 0, 0, 0, 0]); // length: 5
var sub = buf.slice(0, 4); // length: 4
written = sub.write('12345', 'binary');
assert.equal(written, 4);
assert.equal(buf[4], 0);
// Check for fractional length args, junk length args, etc.
// https://github.com/joyent/node/issues/1758
Buffer(3.3).toString(); // throws bad argument error in commit 43cb4ec
assert.equal(Buffer(-1).length, 0);
assert.equal(Buffer(NaN).length, 0);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
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 binary'.split(' ').forEach(function(enc) {
assert.equal(Buffer(1).write('aaaaaa', 0, 1, enc), 1);
});
// Regression test, guard against buffer overrun in the base64 decoder.
var a = Buffer(3);
var b = Buffer('xxx');
a.write('aaaaaaaa', 'base64');
assert.equal(b.toString(), 'xxx');
// issue GH-3416
Buffer(Buffer(0), 0, 0);
[ 'hex',
'utf8',
'utf-8',
'ascii',
'binary',
'base64',
'ucs2',
'ucs-2',
'utf16le',
'utf-16le' ].forEach(function(enc) {
assert.equal(Buffer.isEncoding(enc), true);
});
[ 'utf9',
'utf-7',
'Unicode-FTW',
'new gnu gun' ].forEach(function(enc) {
assert.equal(Buffer.isEncoding(enc), false);
});
// GH-5110
(function() {
var buffer = new Buffer('test'),
string = JSON.stringify(buffer);
assert.equal(string, '{"type":"Buffer","data":[116,101,115,116]}');
assert.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);
assert(buf.equals(copy));
})();
// issue GH-4331
assert.throws(function() {
new Buffer(0xFFFFFFFF);
}, RangeError);
assert.throws(function() {
new Buffer(0xFFFFFFFFF);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
}, RangeError);
// attempt to overflow buffers, similar to previous bug in array buffers
assert.throws(function() {
var buf = new Buffer(8);
buf.readFloatLE(0xffffffff);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
}, RangeError);
assert.throws(function() {
var buf = new Buffer(8);
buf.writeFloatLE(0.0, 0xffffffff);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
}, RangeError);
assert.throws(function() {
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
var buf = new Buffer(8);
buf.readFloatLE(0xffffffff);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
}, RangeError);
assert.throws(function() {
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
var buf = new Buffer(8);
buf.writeFloatLE(0.0, 0xffffffff);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
}, RangeError);
// ensure negative values can't get past offset
assert.throws(function() {
var buf = new Buffer(8);
buf.readFloatLE(-1);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
}, RangeError);
assert.throws(function() {
var buf = new Buffer(8);
buf.writeFloatLE(0.0, -1);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
}, RangeError);
assert.throws(function() {
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
var buf = new Buffer(8);
buf.readFloatLE(-1);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
}, RangeError);
assert.throws(function() {
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
var buf = new Buffer(8);
buf.writeFloatLE(0.0, -1);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
}, RangeError);
// offset checks
var buf = new Buffer(0);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
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);
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
assert.throws(function() { buf['readUInt' + bits + 'BE'](0); },
RangeError,
'readUInt' + bits + 'BE');
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
assert.throws(function() { buf['readUInt' + bits + 'LE'](0); },
RangeError,
'readUInt' + bits + 'LE');
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
assert.throws(function() { buf['readInt' + bits + 'BE'](0); },
RangeError,
'readInt' + bits + 'BE()');
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
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
(function() {
var buf = new Buffer([0x01, 0x02, 0x03, 0x04, 0x05, 0x06]);
assert.equal(buf.readUIntLE(0, 1), 0x01);
assert.equal(buf.readUIntBE(0, 1), 0x01);
assert.equal(buf.readUIntLE(0, 3), 0x030201);
assert.equal(buf.readUIntBE(0, 3), 0x010203);
assert.equal(buf.readUIntLE(0, 5), 0x0504030201);
assert.equal(buf.readUIntBE(0, 5), 0x0102030405);
assert.equal(buf.readUIntLE(0, 6), 0x060504030201);
assert.equal(buf.readUIntBE(0, 6), 0x010203040506);
assert.equal(buf.readIntLE(0, 1), 0x01);
assert.equal(buf.readIntBE(0, 1), 0x01);
assert.equal(buf.readIntLE(0, 3), 0x030201);
assert.equal(buf.readIntBE(0, 3), 0x010203);
assert.equal(buf.readIntLE(0, 5), 0x0504030201);
assert.equal(buf.readIntBE(0, 5), 0x0102030405);
assert.equal(buf.readIntLE(0, 6), 0x060504030201);
assert.equal(buf.readIntBE(0, 6), 0x010203040506);
})();
// test for common write(U)IntLE/BE
(function() {
var buf = new Buffer(3);
buf.writeUIntLE(0x123456, 0, 3);
assert.deepEqual(buf.toJSON().data, [0x56, 0x34, 0x12]);
assert.equal(buf.readUIntLE(0, 3), 0x123456);
buf = new Buffer(3);
buf.writeUIntBE(0x123456, 0, 3);
assert.deepEqual(buf.toJSON().data, [0x12, 0x34, 0x56]);
assert.equal(buf.readUIntBE(0, 3), 0x123456);
buf = new Buffer(3);
buf.writeIntLE(0x123456, 0, 3);
assert.deepEqual(buf.toJSON().data, [0x56, 0x34, 0x12]);
assert.equal(buf.readIntLE(0, 3), 0x123456);
buf = new Buffer(3);
buf.writeIntBE(0x123456, 0, 3);
assert.deepEqual(buf.toJSON().data, [0x12, 0x34, 0x56]);
assert.equal(buf.readIntBE(0, 3), 0x123456);
buf = new Buffer(3);
buf.writeIntLE(-0x123456, 0, 3);
assert.deepEqual(buf.toJSON().data, [0xaa, 0xcb, 0xed]);
assert.equal(buf.readIntLE(0, 3), -0x123456);
buf = new Buffer(3);
buf.writeIntBE(-0x123456, 0, 3);
assert.deepEqual(buf.toJSON().data, [0xed, 0xcb, 0xaa]);
assert.equal(buf.readIntBE(0, 3), -0x123456);
buf = new Buffer(5);
buf.writeUIntLE(0x1234567890, 0, 5);
assert.deepEqual(buf.toJSON().data, [0x90, 0x78, 0x56, 0x34, 0x12]);
assert.equal(buf.readUIntLE(0, 5), 0x1234567890);
buf = new Buffer(5);
buf.writeUIntBE(0x1234567890, 0, 5);
assert.deepEqual(buf.toJSON().data, [0x12, 0x34, 0x56, 0x78, 0x90]);
assert.equal(buf.readUIntBE(0, 5), 0x1234567890);
buf = new Buffer(5);
buf.writeIntLE(0x1234567890, 0, 5);
assert.deepEqual(buf.toJSON().data, [0x90, 0x78, 0x56, 0x34, 0x12]);
assert.equal(buf.readIntLE(0, 5), 0x1234567890);
buf = new Buffer(5);
buf.writeIntBE(0x1234567890, 0, 5);
assert.deepEqual(buf.toJSON().data, [0x12, 0x34, 0x56, 0x78, 0x90]);
assert.equal(buf.readIntBE(0, 5), 0x1234567890);
buf = new Buffer(5);
buf.writeIntLE(-0x1234567890, 0, 5);
assert.deepEqual(buf.toJSON().data, [0x70, 0x87, 0xa9, 0xcb, 0xed]);
assert.equal(buf.readIntLE(0, 5), -0x1234567890);
buf = new Buffer(5);
buf.writeIntBE(-0x1234567890, 0, 5);
assert.deepEqual(buf.toJSON().data, [0xed, 0xcb, 0xa9, 0x87, 0x70]);
assert.equal(buf.readIntBE(0, 5), -0x1234567890);
})();
buffer: use smalloc as backing data store Memory allocations are now done through smalloc. The Buffer cc class has been removed completely, but for backwards compatibility have left the namespace as Buffer. The .parent attribute is only set if the Buffer is a slice of an allocation. Which is then set to the alloc object (not a Buffer). The .offset attribute is now a ReadOnly set to 0, for backwards compatibility. I&#39;d like to remove it in the future (pre v1.0). A few alterations have been made to how arguments are either coerced or thrown. All primitives will now be coerced to their respective values, and (most) all out of range index requests will throw. The indexes that are coerced were left for backwards compatibility. For example: Buffer slice operates more like Array slice, and coerces instead of throwing out of range indexes. This may change in the future. The reason for wanting to throw for out of range indexes is because giving js access to raw memory has high potential risk. To mitigate that it&#39;s easier to make sure the developer is always quickly alerted to the fact that their code is attempting to access beyond memory bounds. Because SlowBuffer will be deprecated, and simply returns a new Buffer instance, all tests on SlowBuffer have been removed. Heapdumps will now show usage under &#34;smalloc&#34; instead of &#34;Buffer&#34;. ParseArrayIndex was added to node_internals to support proper uint argument checking/coercion for external array data indexes. SlabAllocator had to be updated since handle_ no longer exists.
12 years ago
// test Buffer slice
(function() {
var buf = new Buffer('0123456789');
assert.equal(buf.slice(-10, 10), '0123456789');
assert.equal(buf.slice(-20, 10), '0123456789');
assert.equal(buf.slice(-20, -10), '');
assert.equal(buf.slice(0, -1), '012345678');
assert.equal(buf.slice(2, -2), '234567');
assert.equal(buf.slice(0, 65536), '0123456789');
assert.equal(buf.slice(65536, 0), '');
for (var i = 0, s = buf.toString(); i < buf.length; ++i) {
assert.equal(buf.slice(-i), s.slice(-i));
assert.equal(buf.slice(0, -i), s.slice(0, -i));
}
// 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
assert.equal(Buffer(5).slice(0, 0).parent, undefined);
// and make sure a proper slice does have a parent
assert.ok(typeof Buffer(5).slice(0, 5).parent === 'object');
})();
// 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.
(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);
assert.equal(b.length, a.length);
assert.equal(c.length, a.length);
for (var i = 0, k = a.length; i < k; ++i) {
assert.equal(a[i], i);
assert.equal(b[i], i);
assert.equal(c[i], i);
}
})();
assert.throws(function() {
new Buffer(smalloc.kMaxLength + 1);
}, RangeError);
assert.throws(function() {
new SlowBuffer(smalloc.kMaxLength + 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(
crypto.createHash('sha1').update(b1).digest('hex'),
crypto.createHash('sha1').update(b2).digest('hex')
);
} else {
console.log('1..0 # Skipped: 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.throws(function() {
var b = new Buffer(1);
Buffer.compare(b, 'abc');
});
assert.throws(function() {
var b = new Buffer(1);
Buffer.compare('abc', b);
});
assert.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');
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 = new Buffer(1);
b.equals('abc');
});
// Regression test for https://github.com/nodejs/io.js/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();
});