mirror of
https://github.com/nodejs/node.git
synced 2024-12-01 16:10:02 +01:00
f101f7c9ba
Honor the length argument in `buf.write(s, 0, buf.length, 'base64')`. Before
this commit, the length argument was ignored. The decoder would keep writing
until it hit the end of the buffer. Since most buffers in Node are slices of
a parent buffer (the slab), this bug would overwrite the content of adjacent
buffers.
The bug is trivially demonstrated with the following test case:
var assert = require('assert');
var a = Buffer(3);
var b = Buffer('xxx');
a.write('aaaaaaaa', 'base64');
assert.equal(b.toString(), 'xxx');
This commit coincidentally also fixes a bug where Buffer._charsWritten was not
updated for zero length buffers.
717 lines
23 KiB
JavaScript
717 lines
23 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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var common = require('../common');
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var assert = require('assert');
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var Buffer = require('buffer').Buffer;
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var b = Buffer(1024); // safe constructor
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console.log('b.length == ' + b.length);
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assert.strictEqual(1024, b.length);
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b[0] = -1;
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assert.equal(b[0], 255);
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for (var i = 0; i < 1024; i++) {
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b[i] = i % 256;
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}
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for (var i = 0; i < 1024; i++) {
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assert.equal(i % 256, b[i]);
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}
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var c = new Buffer(512);
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console.log('c.length == %d', c.length);
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assert.strictEqual(512, c.length);
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// copy 512 bytes, from 0 to 512.
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var copied = b.copy(c, 0, 0, 512);
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console.log('copied ' + copied + ' bytes from b into c');
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assert.equal(512, copied);
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for (var i = 0; i < c.length; i++) {
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common.print('.');
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assert.equal(i % 256, c[i]);
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}
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console.log('');
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// try to copy 513 bytes, and hope we don't overrun c, which is only 512 long
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var copied = b.copy(c, 0, 0, 513);
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console.log('copied ' + copied + ' bytes from b into c');
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assert.strictEqual(512, copied);
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for (var i = 0; i < c.length; i++) {
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assert.equal(i % 256, c[i]);
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}
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// copy all of c back into b, without specifying sourceEnd
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var copied = c.copy(b, 0, 0);
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console.log('copied ' + copied + ' bytes from c back into b');
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assert.strictEqual(512, copied);
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for (var i = 0; i < b.length; i++) {
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assert.equal(i % 256, b[i]);
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}
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// copy 768 bytes from b into b
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var copied = b.copy(b, 0, 256, 1024);
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console.log('copied ' + copied + ' bytes from b into c');
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assert.strictEqual(768, copied);
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for (var i = 0; i < c.length; i++) {
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assert.equal(i % 256, c[i]);
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}
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var caught_error = null;
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// try to copy from before the beginning of b
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caught_error = null;
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try {
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var copied = b.copy(c, 0, 100, 10);
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} catch (err) {
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caught_error = err;
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}
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assert.strictEqual('sourceEnd < sourceStart', caught_error.message);
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// try to copy to before the beginning of c
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caught_error = null;
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try {
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var copied = b.copy(c, -1, 0, 10);
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} catch (err) {
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caught_error = err;
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}
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assert.strictEqual('targetStart out of bounds', caught_error.message);
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// try to copy to after the end of c
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caught_error = null;
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try {
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var copied = b.copy(c, 512, 0, 10);
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} catch (err) {
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caught_error = err;
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}
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assert.strictEqual('targetStart out of bounds', caught_error.message);
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// try to copy starting before the beginning of b
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caught_error = null;
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try {
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var copied = b.copy(c, 0, -1, 1);
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} catch (err) {
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caught_error = err;
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}
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assert.strictEqual('sourceStart out of bounds', caught_error.message);
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// try to copy starting after the end of b
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caught_error = null;
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try {
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var copied = b.copy(c, 0, 1024, 1025);
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} catch (err) {
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caught_error = err;
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}
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assert.strictEqual('sourceStart out of bounds', caught_error.message);
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// a too-low sourceEnd will get caught by earlier checks
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// try to copy ending after the end of b
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try {
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var copied = b.copy(c, 0, 1023, 1025);
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} catch (err) {
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caught_error = err;
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}
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assert.strictEqual('sourceEnd out of bounds', caught_error.message);
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// try to create 0-length buffers
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new Buffer('');
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new Buffer('', 'ascii');
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new Buffer('', 'binary');
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new Buffer(0);
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// try to write a 0-length string beyond the end of b
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b.write('', 1024);
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b.write('', 2048);
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// try to copy 0 bytes worth of data into an empty buffer
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b.copy(new Buffer(0), 0, 0, 0);
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// try to copy 0 bytes past the end of the target buffer
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b.copy(new Buffer(0), 1, 1, 1);
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b.copy(new Buffer(1), 1, 1, 1);
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// try to copy 0 bytes from past the end of the source buffer
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b.copy(new Buffer(1), 0, 2048, 2048);
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// try to toString() a 0-length slice of a buffer, both within and without the
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// valid buffer range
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assert.equal(new Buffer('abc').toString('ascii', 0, 0), '');
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assert.equal(new Buffer('abc').toString('ascii', -100, -100), '');
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assert.equal(new Buffer('abc').toString('ascii', 100, 100), '');
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// try toString() with a object as a encoding
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assert.equal(new Buffer('abc').toString({toString: function() {
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return 'ascii';
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}}), 'abc');
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// testing for smart defaults and ability to pass string values as offset
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var writeTest = new Buffer('abcdes');
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writeTest.write('n', 'ascii');
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writeTest.write('o', 'ascii', '1');
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writeTest.write('d', '2', 'ascii');
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writeTest.write('e', 3, 'ascii');
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writeTest.write('j', 'ascii', 4);
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assert.equal(writeTest.toString(), 'nodejs');
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var asciiString = 'hello world';
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var offset = 100;
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for (var j = 0; j < 500; j++) {
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for (var i = 0; i < asciiString.length; i++) {
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b[i] = asciiString.charCodeAt(i);
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}
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var asciiSlice = b.toString('ascii', 0, asciiString.length);
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assert.equal(asciiString, asciiSlice);
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var written = b.write(asciiString, offset, 'ascii');
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assert.equal(asciiString.length, written);
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var asciiSlice = b.toString('ascii', offset, offset + asciiString.length);
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assert.equal(asciiString, asciiSlice);
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var sliceA = b.slice(offset, offset + asciiString.length);
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var sliceB = b.slice(offset, offset + asciiString.length);
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for (var i = 0; i < asciiString.length; i++) {
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assert.equal(sliceA[i], sliceB[i]);
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}
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// TODO utf8 slice tests
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}
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for (var j = 0; j < 100; j++) {
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var slice = b.slice(100, 150);
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assert.equal(50, slice.length);
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for (var i = 0; i < 50; i++) {
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assert.equal(b[100 + i], slice[i]);
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}
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}
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// Bug regression test
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var testValue = '\u00F6\u65E5\u672C\u8A9E'; // ö日本語
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var buffer = new Buffer(32);
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var size = buffer.write(testValue, 0, 'utf8');
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console.log('bytes written to buffer: ' + size);
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var slice = buffer.toString('utf8', 0, size);
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assert.equal(slice, testValue);
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// Test triple slice
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var a = new Buffer(8);
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for (var i = 0; i < 8; i++) a[i] = i;
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var b = a.slice(4, 8);
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assert.equal(4, b[0]);
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assert.equal(5, b[1]);
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assert.equal(6, b[2]);
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assert.equal(7, b[3]);
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var c = b.slice(2, 4);
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assert.equal(6, c[0]);
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assert.equal(7, c[1]);
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var d = new Buffer([23, 42, 255]);
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assert.equal(d.length, 3);
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assert.equal(d[0], 23);
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assert.equal(d[1], 42);
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assert.equal(d[2], 255);
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assert.deepEqual(d, new Buffer(d));
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var e = new Buffer('über');
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console.error('uber: \'%s\'', e.toString());
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assert.deepEqual(e, new Buffer([195, 188, 98, 101, 114]));
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var f = new Buffer('über', 'ascii');
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console.error('f.length: %d (should be 4)', f.length);
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assert.deepEqual(f, new Buffer([252, 98, 101, 114]));
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var f = new Buffer('über', 'ucs2');
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console.error('f.length: %d (should be 8)', f.length);
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assert.deepEqual(f, new Buffer([252, 0, 98, 0, 101, 0, 114, 0]));
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var f = new Buffer('привет', 'ucs2');
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console.error('f.length: %d (should be 12)', f.length);
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assert.deepEqual(f, new Buffer([63, 4, 64, 4, 56, 4, 50, 4, 53, 4, 66, 4]));
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assert.equal(f.toString('ucs2'), 'привет');
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var f = new Buffer([0, 0, 0, 0, 0]);
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assert.equal(f.length, 5);
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var size = f.write('あいうえお', 'ucs2');
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var charsWritten = Buffer._charsWritten; // Copy value out.
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console.error('bytes written to buffer: %d (should be 4)', size);
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console.error('chars written to buffer: %d (should be 2)', charsWritten);
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assert.equal(size, 4);
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assert.equal(charsWritten, 2);
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assert.deepEqual(f, new Buffer([0x42, 0x30, 0x44, 0x30, 0x00]));
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var arrayIsh = {0: 0, 1: 1, 2: 2, 3: 3, length: 4};
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var g = new Buffer(arrayIsh);
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assert.deepEqual(g, new Buffer([0, 1, 2, 3]));
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var strArrayIsh = {0: '0', 1: '1', 2: '2', 3: '3', length: 4};
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g = new Buffer(strArrayIsh);
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assert.deepEqual(g, new Buffer([0, 1, 2, 3]));
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//
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// Test toString('base64')
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//
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assert.equal('TWFu', (new Buffer('Man')).toString('base64'));
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// big example
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var quote = 'Man is distinguished, not only by his reason, but by this ' +
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'singular passion from other animals, which is a lust ' +
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'of the mind, that by a perseverance of delight in the continued ' +
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'and indefatigable generation of knowledge, exceeds the short ' +
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'vehemence of any carnal pleasure.';
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var expected = 'TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24s' +
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'IGJ1dCBieSB0aGlzIHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltY' +
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'WxzLCB3aGljaCBpcyBhIGx1c3Qgb2YgdGhlIG1pbmQsIHRoYXQgYnkgYSBwZX' +
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'JzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGludWVkIGFuZCBpbmR' +
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'lZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo' +
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'ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=';
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assert.equal(expected, (new Buffer(quote)).toString('base64'));
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b = new Buffer(1024);
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var bytesWritten = b.write(expected, 0, 'base64');
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assert.equal(quote.length, bytesWritten);
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assert.equal(quote, b.toString('ascii', 0, quote.length));
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// check that the base64 decoder ignores whitespace
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var expectedWhite = expected.slice(0, 60) + ' \n' +
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expected.slice(60, 120) + ' \n' +
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expected.slice(120, 180) + ' \n' +
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expected.slice(180, 240) + ' \n' +
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expected.slice(240, 300) + '\n' +
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expected.slice(300, 360) + '\n';
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b = new Buffer(1024);
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bytesWritten = b.write(expectedWhite, 0, 'base64');
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assert.equal(quote.length, bytesWritten);
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assert.equal(quote, b.toString('ascii', 0, quote.length));
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// check that the base64 decoder on the constructor works
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// even in the presence of whitespace.
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b = new Buffer(expectedWhite, 'base64');
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assert.equal(quote.length, b.length);
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assert.equal(quote, b.toString('ascii', 0, quote.length));
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// check that the base64 decoder ignores illegal chars
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var expectedIllegal = expected.slice(0, 60) + ' \x80' +
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expected.slice(60, 120) + ' \xff' +
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expected.slice(120, 180) + ' \x00' +
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expected.slice(180, 240) + ' \x98' +
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expected.slice(240, 300) + '\x03' +
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expected.slice(300, 360);
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b = new Buffer(expectedIllegal, 'base64');
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assert.equal(quote.length, b.length);
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assert.equal(quote, b.toString('ascii', 0, quote.length));
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assert.equal(new Buffer('', 'base64').toString(), '');
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assert.equal(new Buffer('K', 'base64').toString(), '');
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// multiple-of-4 with padding
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assert.equal(new Buffer('Kg==', 'base64').toString(), '*');
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assert.equal(new Buffer('Kio=', 'base64').toString(), '**');
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assert.equal(new Buffer('Kioq', 'base64').toString(), '***');
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assert.equal(new Buffer('KioqKg==', 'base64').toString(), '****');
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assert.equal(new Buffer('KioqKio=', 'base64').toString(), '*****');
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assert.equal(new Buffer('KioqKioq', 'base64').toString(), '******');
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assert.equal(new Buffer('KioqKioqKg==', 'base64').toString(), '*******');
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assert.equal(new Buffer('KioqKioqKio=', 'base64').toString(), '********');
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assert.equal(new Buffer('KioqKioqKioq', 'base64').toString(), '*********');
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assert.equal(new Buffer('KioqKioqKioqKg==', 'base64').toString(),
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'**********');
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assert.equal(new Buffer('KioqKioqKioqKio=', 'base64').toString(),
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'***********');
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assert.equal(new Buffer('KioqKioqKioqKioq', 'base64').toString(),
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'************');
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assert.equal(new Buffer('KioqKioqKioqKioqKg==', 'base64').toString(),
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'*************');
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assert.equal(new Buffer('KioqKioqKioqKioqKio=', 'base64').toString(),
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'**************');
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assert.equal(new Buffer('KioqKioqKioqKioqKioq', 'base64').toString(),
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'***************');
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assert.equal(new Buffer('KioqKioqKioqKioqKioqKg==', 'base64').toString(),
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'****************');
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assert.equal(new Buffer('KioqKioqKioqKioqKioqKio=', 'base64').toString(),
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'*****************');
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assert.equal(new Buffer('KioqKioqKioqKioqKioqKioq', 'base64').toString(),
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'******************');
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assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKg==', 'base64').toString(),
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'*******************');
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assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKio=', 'base64').toString(),
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'********************');
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// no padding, not a multiple of 4
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assert.equal(new Buffer('Kg', 'base64').toString(), '*');
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assert.equal(new Buffer('Kio', 'base64').toString(), '**');
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assert.equal(new Buffer('KioqKg', 'base64').toString(), '****');
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assert.equal(new Buffer('KioqKio', 'base64').toString(), '*****');
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assert.equal(new Buffer('KioqKioqKg', 'base64').toString(), '*******');
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assert.equal(new Buffer('KioqKioqKio', 'base64').toString(), '********');
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assert.equal(new Buffer('KioqKioqKioqKg', 'base64').toString(), '**********');
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assert.equal(new Buffer('KioqKioqKioqKio', 'base64').toString(), '***********');
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assert.equal(new Buffer('KioqKioqKioqKioqKg', 'base64').toString(),
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'*************');
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assert.equal(new Buffer('KioqKioqKioqKioqKio', 'base64').toString(),
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'**************');
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assert.equal(new Buffer('KioqKioqKioqKioqKioqKg', 'base64').toString(),
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'****************');
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assert.equal(new Buffer('KioqKioqKioqKioqKioqKio', 'base64').toString(),
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'*****************');
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assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKg', 'base64').toString(),
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'*******************');
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assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKio', 'base64').toString(),
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'********************');
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// handle padding graciously, multiple-of-4 or not
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assert.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw==',
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'base64').length, 32);
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assert.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw=',
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'base64').length, 32);
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assert.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw',
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'base64').length, 32);
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assert.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg==',
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'base64').length, 31);
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assert.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg=',
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'base64').length, 31);
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assert.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg',
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'base64').length, 31);
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// This string encodes single '.' character in UTF-16
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var dot = new Buffer('//4uAA==', 'base64');
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assert.equal(dot[0], 0xff);
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assert.equal(dot[1], 0xfe);
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assert.equal(dot[2], 0x2e);
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assert.equal(dot[3], 0x00);
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assert.equal(dot.toString('base64'), '//4uAA==');
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|
// Writing base64 at a position > 0 should not mangle the result.
|
|
//
|
|
// https://github.com/joyent/node/issues/402
|
|
var segments = ['TWFkbmVzcz8h', 'IFRoaXM=', 'IGlz', 'IG5vZGUuanMh'];
|
|
var buf = new Buffer(64);
|
|
var pos = 0;
|
|
|
|
for (var i = 0; i < segments.length; ++i) {
|
|
pos += b.write(segments[i], pos, 'base64');
|
|
}
|
|
assert.equal(b.toString('binary', 0, pos), 'Madness?! This is node.js!');
|
|
|
|
// Creating buffers larger than pool size.
|
|
var l = Buffer.poolSize + 5;
|
|
var s = '';
|
|
for (i = 0; i < l; i++) {
|
|
s += 'h';
|
|
}
|
|
|
|
var b = new Buffer(s);
|
|
|
|
for (i = 0; i < l; i++) {
|
|
assert.equal('h'.charCodeAt(0), b[i]);
|
|
}
|
|
|
|
var sb = b.toString();
|
|
assert.equal(sb.length, s.length);
|
|
assert.equal(sb, s);
|
|
|
|
|
|
// Single argument slice
|
|
b = new Buffer('abcde');
|
|
assert.equal('bcde', b.slice(1).toString());
|
|
|
|
// byte length
|
|
assert.equal(14, Buffer.byteLength('Il était tué'));
|
|
assert.equal(14, Buffer.byteLength('Il était tué', 'utf8'));
|
|
assert.equal(24, Buffer.byteLength('Il était tué', 'ucs2'));
|
|
assert.equal(12, Buffer.byteLength('Il était tué', 'ascii'));
|
|
assert.equal(12, Buffer.byteLength('Il était tué', 'binary'));
|
|
|
|
// slice(0,0).length === 0
|
|
assert.equal(0, Buffer('hello').slice(0, 0).length);
|
|
|
|
// test hex toString
|
|
console.log('Create hex string from buffer');
|
|
var hexb = new Buffer(256);
|
|
for (var i = 0; i < 256; i++) {
|
|
hexb[i] = i;
|
|
}
|
|
var hexStr = hexb.toString('hex');
|
|
assert.equal(hexStr,
|
|
'000102030405060708090a0b0c0d0e0f' +
|
|
'101112131415161718191a1b1c1d1e1f' +
|
|
'202122232425262728292a2b2c2d2e2f' +
|
|
'303132333435363738393a3b3c3d3e3f' +
|
|
'404142434445464748494a4b4c4d4e4f' +
|
|
'505152535455565758595a5b5c5d5e5f' +
|
|
'606162636465666768696a6b6c6d6e6f' +
|
|
'707172737475767778797a7b7c7d7e7f' +
|
|
'808182838485868788898a8b8c8d8e8f' +
|
|
'909192939495969798999a9b9c9d9e9f' +
|
|
'a0a1a2a3a4a5a6a7a8a9aaabacadaeaf' +
|
|
'b0b1b2b3b4b5b6b7b8b9babbbcbdbebf' +
|
|
'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf' +
|
|
'd0d1d2d3d4d5d6d7d8d9dadbdcdddedf' +
|
|
'e0e1e2e3e4e5e6e7e8e9eaebecedeeef' +
|
|
'f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff');
|
|
|
|
console.log('Create buffer from hex string');
|
|
var hexb2 = new Buffer(hexStr, 'hex');
|
|
for (var i = 0; i < 256; i++) {
|
|
assert.equal(hexb2[i], hexb[i]);
|
|
}
|
|
|
|
// test an invalid slice end.
|
|
console.log('Try to slice off the end of the buffer');
|
|
var b = new Buffer([1, 2, 3, 4, 5]);
|
|
var b2 = b.toString('hex', 1, 10000);
|
|
var b3 = b.toString('hex', 1, 5);
|
|
var b4 = b.toString('hex', 1);
|
|
assert.equal(b2, b3);
|
|
assert.equal(b2, b4);
|
|
|
|
|
|
// Test slice on SlowBuffer GH-843
|
|
var SlowBuffer = process.binding('buffer').SlowBuffer;
|
|
|
|
function buildSlowBuffer(data) {
|
|
if (Array.isArray(data)) {
|
|
var buffer = new SlowBuffer(data.length);
|
|
data.forEach(function(v, k) {
|
|
buffer[k] = v;
|
|
});
|
|
return buffer;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
var x = buildSlowBuffer([0x81, 0xa3, 0x66, 0x6f, 0x6f, 0xa3, 0x62, 0x61, 0x72]);
|
|
|
|
console.log(x.inspect());
|
|
assert.equal('<SlowBuffer 81 a3 66 6f 6f a3 62 61 72>', x.inspect());
|
|
|
|
var z = x.slice(4);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(5, z.length);
|
|
assert.equal(0x6f, z[0]);
|
|
assert.equal(0xa3, z[1]);
|
|
assert.equal(0x62, z[2]);
|
|
assert.equal(0x61, z[3]);
|
|
assert.equal(0x72, z[4]);
|
|
|
|
var z = x.slice(0);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(z.length, x.length);
|
|
|
|
var z = x.slice(0, 4);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(4, z.length);
|
|
assert.equal(0x81, z[0]);
|
|
assert.equal(0xa3, z[1]);
|
|
|
|
var z = x.slice(0, 9);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(9, z.length);
|
|
|
|
var z = x.slice(1, 4);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(3, z.length);
|
|
assert.equal(0xa3, z[0]);
|
|
|
|
var z = x.slice(2, 4);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(2, z.length);
|
|
assert.equal(0x66, z[0]);
|
|
assert.equal(0x6f, z[1]);
|
|
|
|
assert.equal(0, Buffer('hello').slice(0, 0).length);
|
|
|
|
b = new Buffer(50);
|
|
b.fill('h');
|
|
for (var i = 0; i < b.length; i++) {
|
|
assert.equal('h'.charCodeAt(0), b[i]);
|
|
}
|
|
|
|
b.fill(0);
|
|
for (var i = 0; i < b.length; i++) {
|
|
assert.equal(0, b[i]);
|
|
}
|
|
|
|
b.fill(1, 16, 32);
|
|
for (var i = 0; i < 16; i++) assert.equal(0, b[i]);
|
|
for (; i < 32; i++) assert.equal(1, b[i]);
|
|
for (; i < b.length; i++) assert.equal(0, b[i]);
|
|
|
|
var b = new SlowBuffer(10);
|
|
b.write('あいうえお', 'ucs2');
|
|
assert.equal(b.toString('ucs2'), '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]);
|
|
|
|
|
|
// This should not segfault the program.
|
|
assert.throws(function() {
|
|
new Buffer('"pong"', 0, 6, 8031, '127.0.0.1');
|
|
});
|
|
|
|
// #1210 Test UTF-8 string includes null character
|
|
var buf = new Buffer('\0');
|
|
assert.equal(buf.length, 1);
|
|
buf = new Buffer('\0\0');
|
|
assert.equal(buf.length, 2);
|
|
|
|
buf = new Buffer(2);
|
|
var written = buf.write(''); // 0byte
|
|
assert.equal(written, 0);
|
|
written = buf.write('\0'); // 1byte (v8 adds null terminator)
|
|
assert.equal(written, 1);
|
|
written = buf.write('a\0'); // 1byte * 2
|
|
assert.equal(written, 2);
|
|
written = buf.write('あ'); // 3bytes
|
|
assert.equal(written, 0);
|
|
written = buf.write('\0あ'); // 1byte + 3bytes
|
|
assert.equal(written, 1);
|
|
written = buf.write('\0\0あ'); // 1byte * 2 + 3bytes
|
|
assert.equal(written, 2);
|
|
|
|
buf = new Buffer(10);
|
|
written = buf.write('あいう'); // 3bytes * 3 (v8 adds null terminator)
|
|
assert.equal(written, 9);
|
|
written = buf.write('あいう\0'); // 3bytes * 3 + 1byte
|
|
assert.equal(written, 10);
|
|
|
|
// #243 Test write() with maxLength
|
|
var buf = new Buffer(4);
|
|
buf.fill(0xFF);
|
|
var written = buf.write('abcd', 1, 2, 'utf8');
|
|
console.log(buf);
|
|
assert.equal(written, 2);
|
|
assert.equal(buf[0], 0xFF);
|
|
assert.equal(buf[1], 0x61);
|
|
assert.equal(buf[2], 0x62);
|
|
assert.equal(buf[3], 0xFF);
|
|
|
|
buf.fill(0xFF);
|
|
written = buf.write('abcd', 1, 4);
|
|
console.log(buf);
|
|
assert.equal(written, 3);
|
|
assert.equal(buf[0], 0xFF);
|
|
assert.equal(buf[1], 0x61);
|
|
assert.equal(buf[2], 0x62);
|
|
assert.equal(buf[3], 0x63);
|
|
|
|
buf.fill(0xFF);
|
|
written = buf.write('abcd', 'utf8', 1, 2); // legacy style
|
|
console.log(buf);
|
|
assert.equal(written, 2);
|
|
assert.equal(buf[0], 0xFF);
|
|
assert.equal(buf[1], 0x61);
|
|
assert.equal(buf[2], 0x62);
|
|
assert.equal(buf[3], 0xFF);
|
|
|
|
buf.fill(0xFF);
|
|
written = buf.write('abcdef', 1, 2, 'hex');
|
|
console.log(buf);
|
|
assert.equal(written, 2);
|
|
assert.equal(buf[0], 0xFF);
|
|
assert.equal(buf[1], 0xAB);
|
|
assert.equal(buf[2], 0xCD);
|
|
assert.equal(buf[3], 0xFF);
|
|
|
|
buf.fill(0xFF);
|
|
written = buf.write('abcd', 0, 2, 'ucs2');
|
|
console.log(buf);
|
|
assert.equal(written, 2);
|
|
assert.equal(buf[0], 0x61);
|
|
assert.equal(buf[1], 0x00);
|
|
assert.equal(buf[2], 0xFF);
|
|
assert.equal(buf[3], 0xFF);
|
|
|
|
// test for buffer overrun
|
|
buf = new Buffer([0, 0, 0, 0, 0]); // length: 5
|
|
var sub = buf.slice(0, 4); // length: 4
|
|
written = sub.write('12345', 'binary');
|
|
assert.equal(written, 4);
|
|
assert.equal(buf[4], 0);
|
|
|
|
// test for _charsWritten
|
|
buf = new Buffer(9);
|
|
buf.write('あいうえ', 'utf8'); // 3bytes * 4
|
|
assert.equal(Buffer._charsWritten, 3);
|
|
buf.write('あいうえお', 'ucs2'); // 2bytes * 5
|
|
assert.equal(Buffer._charsWritten, 4);
|
|
buf.write('0123456789', 'ascii');
|
|
assert.equal(Buffer._charsWritten, 9);
|
|
buf.write('0123456789', 'binary');
|
|
assert.equal(Buffer._charsWritten, 9);
|
|
buf.write('123456', 'base64');
|
|
assert.equal(Buffer._charsWritten, 4);
|
|
buf.write('00010203040506070809', 'hex');
|
|
assert.equal(Buffer._charsWritten, 18);
|
|
|
|
// Check for fractional length args, junk length args, etc.
|
|
// https://github.com/joyent/node/issues/1758
|
|
Buffer(3.3).toString(); // throws bad argument error in commit 43cb4ec
|
|
assert.equal(Buffer(-1).length, 0);
|
|
assert.equal(Buffer(NaN).length, 0);
|
|
assert.equal(Buffer(3.3).length, 4);
|
|
assert.equal(Buffer({length: 3.3}).length, 4);
|
|
assert.equal(Buffer({length: 'BAM'}).length, 0);
|
|
|
|
// Make sure that strings are not coerced to numbers.
|
|
assert.equal(Buffer('99').length, 2);
|
|
assert.equal(Buffer('13.37').length, 5);
|
|
|
|
// Ensure that the length argument is respected.
|
|
'ascii utf8 hex base64 binary'.split(' ').forEach(function(enc) {
|
|
assert.equal(Buffer(1).write('aaaaaa', 0, 1, enc), 1);
|
|
});
|
|
|
|
// Regression test, guard against buffer overrun in the base64 decoder.
|
|
var a = Buffer(3);
|
|
var b = Buffer('xxx');
|
|
a.write('aaaaaaaa', 'base64');
|
|
assert.equal(b.toString(), 'xxx');
|