mirror of
https://github.com/nodejs/node.git
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3e1b1dd4a9
The copyright and license notice is already in the LICENSE file. There is no justifiable reason to also require that it be included in every file, since the individual files are not individually distributed except as part of the entire package.
1166 lines
35 KiB
JavaScript
1166 lines
35 KiB
JavaScript
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 SlowBuffer = require('buffer').SlowBuffer;
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var smalloc = require('smalloc');
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// counter to ensure unique value is always copied
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var cntr = 0;
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var b = Buffer(1024); // safe constructor
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console.log('b.length == %d', b.length);
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assert.strictEqual(1024, b.length);
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b[0] = -1;
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assert.strictEqual(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.strictEqual(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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// First check Buffer#fill() works as expected.
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assert.throws(function() {
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Buffer(8).fill('a', -1);
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});
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assert.throws(function() {
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Buffer(8).fill('a', 0, 9);
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});
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// Make sure this doesn't hang indefinitely.
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Buffer(8).fill('');
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var buf = new Buffer(64);
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buf.fill(10);
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for (var i = 0; i < buf.length; i++)
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assert.equal(buf[i], 10);
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buf.fill(11, 0, buf.length >> 1);
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for (var i = 0; i < buf.length >> 1; i++)
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assert.equal(buf[i], 11);
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for (var i = (buf.length >> 1) + 1; i < buf.length; i++)
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assert.equal(buf[i], 10);
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buf.fill('h');
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for (var i = 0; i < buf.length; i++)
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assert.equal('h'.charCodeAt(0), buf[i]);
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buf.fill(0);
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for (var i = 0; i < buf.length; i++)
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assert.equal(0, buf[i]);
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buf.fill(null);
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for (var i = 0; i < buf.length; i++)
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assert.equal(0, buf[i]);
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buf.fill(1, 16, 32);
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for (var i = 0; i < 16; i++)
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assert.equal(0, buf[i]);
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for (; i < 32; i++)
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assert.equal(1, buf[i]);
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for (; i < buf.length; i++)
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assert.equal(0, buf[i]);
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var buf = new Buffer(10);
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buf.fill('abc');
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assert.equal(buf.toString(), 'abcabcabca');
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buf.fill('է');
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assert.equal(buf.toString(), 'էէէէէ');
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// copy 512 bytes, from 0 to 512.
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b.fill(++cntr);
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c.fill(++cntr);
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var copied = b.copy(c, 0, 0, 512);
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console.log('copied %d bytes from b into c', copied);
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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.strictEqual(b[i], c[i]);
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}
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// copy c into b, without specifying sourceEnd
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b.fill(++cntr);
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c.fill(++cntr);
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var copied = c.copy(b, 0, 0);
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console.log('copied %d bytes from c into b w/o sourceEnd', copied);
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assert.strictEqual(c.length, copied);
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for (var i = 0; i < c.length; i++) {
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assert.strictEqual(c[i], b[i]);
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}
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// copy c into b, without specifying sourceStart
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b.fill(++cntr);
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c.fill(++cntr);
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var copied = c.copy(b, 0);
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console.log('copied %d bytes from c into b w/o sourceStart', copied);
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assert.strictEqual(c.length, copied);
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for (var i = 0; i < c.length; i++) {
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assert.strictEqual(c[i], b[i]);
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}
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// copy longer buffer b to shorter c without targetStart
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b.fill(++cntr);
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c.fill(++cntr);
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var copied = b.copy(c);
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console.log('copied %d bytes from b into c w/o targetStart', copied);
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assert.strictEqual(c.length, copied);
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for (var i = 0; i < c.length; i++) {
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assert.strictEqual(b[i], c[i]);
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}
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// copy starting near end of b to c
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b.fill(++cntr);
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c.fill(++cntr);
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var copied = b.copy(c, 0, b.length - Math.floor(c.length / 2));
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console.log('copied %d bytes from end of b into beginning of c', copied);
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assert.strictEqual(Math.floor(c.length / 2), copied);
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for (var i = 0; i < Math.floor(c.length / 2); i++) {
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assert.strictEqual(b[b.length - Math.floor(c.length / 2) + i], c[i]);
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}
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for (var i = Math.floor(c.length /2) + 1; i < c.length; i++) {
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assert.strictEqual(c[c.length-1], c[i]);
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}
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// try to copy 513 bytes, and check we don't overrun c
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b.fill(++cntr);
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c.fill(++cntr);
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var copied = b.copy(c, 0, 0, 513);
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console.log('copied %d bytes from b trying to overrun c', copied);
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assert.strictEqual(c.length, copied);
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for (var i = 0; i < c.length; i++) {
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assert.strictEqual(b[i], c[i]);
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}
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// copy 768 bytes from b into b
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b.fill(++cntr);
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b.fill(++cntr, 256);
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var copied = b.copy(b, 0, 256, 1024);
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console.log('copied %d bytes from b into b', copied);
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assert.strictEqual(768, copied);
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for (var i = 0; i < b.length; i++) {
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assert.strictEqual(cntr, b[i]);
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}
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// copy string longer than buffer length (failure will segfault)
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var bb = new Buffer(10);
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bb.fill('hello crazy world');
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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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// copy throws at negative sourceStart
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assert.throws(function() {
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Buffer(5).copy(Buffer(5), 0, -1);
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}, RangeError);
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// check sourceEnd resets to targetEnd if former is greater than the latter
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b.fill(++cntr);
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c.fill(++cntr);
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var copied = b.copy(c, 0, 0, 1025);
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console.log('copied %d bytes from b into c', copied);
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for (var i = 0; i < c.length; i++) {
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assert.strictEqual(b[i], c[i]);
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}
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// throw with negative sourceEnd
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console.log('test copy at negative sourceEnd');
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assert.throws(function() {
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b.copy(c, 0, 0, -1);
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}, RangeError);
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// when sourceStart is greater than sourceEnd, zero copied
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assert.equal(b.copy(c, 0, 100, 10), 0);
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// when targetStart > targetLength, zero copied
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assert.equal(b.copy(c, 512, 0, 10), 0);
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var caught_error;
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// invalid encoding for Buffer.toString
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caught_error = null;
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try {
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var copied = b.toString('invalid');
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} catch (err) {
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caught_error = err;
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}
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assert.strictEqual('Unknown encoding: invalid', caught_error.message);
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// invalid encoding for Buffer.write
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caught_error = null;
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try {
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var copied = b.write('test string', 0, 5, 'invalid');
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} catch (err) {
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caught_error = err;
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}
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assert.strictEqual('Unknown encoding: invalid', 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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assert.throws(function() {
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b.write('', 2048);
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}, RangeError);
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// throw when writing to negative offset
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assert.throws(function() {
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b.write('a', -1);
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}, RangeError);
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// throw when writing past bounds from the pool
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assert.throws(function() {
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b.write('a', 2048);
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}, RangeError);
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// throw when writing to negative offset
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assert.throws(function() {
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b.write('a', -1);
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}, RangeError);
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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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// make sure only top level parent propagates from allocPool
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var b = new Buffer(5);
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var c = b.slice(0, 4);
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var d = c.slice(0, 2);
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assert.equal(b.parent, c.parent);
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assert.equal(b.parent, d.parent);
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// also from a non-pooled instance
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var b = new SlowBuffer(5);
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var c = b.slice(0, 4);
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var d = c.slice(0, 2);
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assert.equal(b, c.parent);
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assert.equal(b, d.parent);
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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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['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) {
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var f = new Buffer('über', encoding);
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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', encoding);
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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(encoding), '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', encoding);
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console.error('bytes written to buffer: %d (should be 4)', size);
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assert.equal(size, 4);
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assert.deepEqual(f, new Buffer([0x42, 0x30, 0x44, 0x30, 0x00]));
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});
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var f = new Buffer('\uD83D\uDC4D', 'utf-16le'); // THUMBS UP SIGN (U+1F44D)
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assert.equal(f.length, 4);
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assert.deepEqual(f, new Buffer('3DD84DDC', 'hex'));
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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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// test that regular and URL-safe base64 both work
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var expected = [0xff, 0xff, 0xbe, 0xff, 0xef, 0xbf, 0xfb, 0xef, 0xff];
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assert.deepEqual(Buffer('//++/++/++//', 'base64'), Buffer(expected));
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assert.deepEqual(Buffer('__--_--_--__', 'base64'), Buffer(expected));
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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(), '******');
|
|
assert.equal(new Buffer('KioqKioqKg==', 'base64').toString(), '*******');
|
|
assert.equal(new Buffer('KioqKioqKio=', 'base64').toString(), '********');
|
|
assert.equal(new Buffer('KioqKioqKioq', 'base64').toString(), '*********');
|
|
assert.equal(new Buffer('KioqKioqKioqKg==', 'base64').toString(),
|
|
'**********');
|
|
assert.equal(new Buffer('KioqKioqKioqKio=', 'base64').toString(),
|
|
'***********');
|
|
assert.equal(new Buffer('KioqKioqKioqKioq', 'base64').toString(),
|
|
'************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKg==', 'base64').toString(),
|
|
'*************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKio=', 'base64').toString(),
|
|
'**************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKioq', 'base64').toString(),
|
|
'***************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKioqKg==', 'base64').toString(),
|
|
'****************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKioqKio=', 'base64').toString(),
|
|
'*****************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKioqKioq', 'base64').toString(),
|
|
'******************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKg==', 'base64').toString(),
|
|
'*******************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKio=', 'base64').toString(),
|
|
'********************');
|
|
|
|
// no padding, not a multiple of 4
|
|
assert.equal(new Buffer('Kg', 'base64').toString(), '*');
|
|
assert.equal(new Buffer('Kio', 'base64').toString(), '**');
|
|
assert.equal(new Buffer('KioqKg', 'base64').toString(), '****');
|
|
assert.equal(new Buffer('KioqKio', 'base64').toString(), '*****');
|
|
assert.equal(new Buffer('KioqKioqKg', 'base64').toString(), '*******');
|
|
assert.equal(new Buffer('KioqKioqKio', 'base64').toString(), '********');
|
|
assert.equal(new Buffer('KioqKioqKioqKg', 'base64').toString(), '**********');
|
|
assert.equal(new Buffer('KioqKioqKioqKio', 'base64').toString(), '***********');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKg', 'base64').toString(),
|
|
'*************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKio', 'base64').toString(),
|
|
'**************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKioqKg', 'base64').toString(),
|
|
'****************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKioqKio', 'base64').toString(),
|
|
'*****************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKg', 'base64').toString(),
|
|
'*******************');
|
|
assert.equal(new Buffer('KioqKioqKioqKioqKioqKioqKio', 'base64').toString(),
|
|
'********************');
|
|
|
|
// handle padding graciously, multiple-of-4 or not
|
|
assert.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw==',
|
|
'base64').length, 32);
|
|
assert.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw=',
|
|
'base64').length, 32);
|
|
assert.equal(new Buffer('72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw',
|
|
'base64').length, 32);
|
|
assert.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg==',
|
|
'base64').length, 31);
|
|
assert.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg=',
|
|
'base64').length, 31);
|
|
assert.equal(new Buffer('w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg',
|
|
'base64').length, 31);
|
|
|
|
// This string encodes single '.' character in UTF-16
|
|
var dot = new Buffer('//4uAA==', 'base64');
|
|
assert.equal(dot[0], 0xff);
|
|
assert.equal(dot[1], 0xfe);
|
|
assert.equal(dot[2], 0x2e);
|
|
assert.equal(dot[3], 0x00);
|
|
assert.equal(dot.toString('base64'), '//4uAA==');
|
|
|
|
// Writing base64 at a position > 0 should not mangle the result.
|
|
//
|
|
// https://github.com/joyent/node/issues/402
|
|
var segments = ['TWFkbmVzcz8h', 'IFRoaXM=', 'IGlz', 'IG5vZGUuanMh'];
|
|
var buf = new Buffer(64);
|
|
var pos = 0;
|
|
|
|
for (var i = 0; i < segments.length; ++i) {
|
|
pos += b.write(segments[i], pos, 'base64');
|
|
}
|
|
assert.equal(b.toString('binary', 0, pos), 'Madness?! This is node.js!');
|
|
|
|
// Creating buffers larger than pool size.
|
|
var l = Buffer.poolSize + 5;
|
|
var s = '';
|
|
for (i = 0; i < l; i++) {
|
|
s += 'h';
|
|
}
|
|
|
|
var b = new Buffer(s);
|
|
|
|
for (i = 0; i < l; i++) {
|
|
assert.equal('h'.charCodeAt(0), b[i]);
|
|
}
|
|
|
|
var sb = b.toString();
|
|
assert.equal(sb.length, s.length);
|
|
assert.equal(sb, s);
|
|
|
|
|
|
// Single argument slice
|
|
b = new Buffer('abcde');
|
|
assert.equal('bcde', b.slice(1).toString());
|
|
|
|
// byte length
|
|
assert.equal(14, Buffer.byteLength('Il était tué'));
|
|
assert.equal(14, Buffer.byteLength('Il était tué', 'utf8'));
|
|
['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) {
|
|
assert.equal(24, Buffer.byteLength('Il était tué', encoding));
|
|
});
|
|
assert.equal(12, Buffer.byteLength('Il était tué', 'ascii'));
|
|
assert.equal(12, Buffer.byteLength('Il était tué', 'binary'));
|
|
|
|
// slice(0,0).length === 0
|
|
assert.equal(0, Buffer('hello').slice(0, 0).length);
|
|
|
|
// test hex toString
|
|
console.log('Create hex string from buffer');
|
|
var hexb = new Buffer(256);
|
|
for (var i = 0; i < 256; i++) {
|
|
hexb[i] = i;
|
|
}
|
|
var hexStr = hexb.toString('hex');
|
|
assert.equal(hexStr,
|
|
'000102030405060708090a0b0c0d0e0f' +
|
|
'101112131415161718191a1b1c1d1e1f' +
|
|
'202122232425262728292a2b2c2d2e2f' +
|
|
'303132333435363738393a3b3c3d3e3f' +
|
|
'404142434445464748494a4b4c4d4e4f' +
|
|
'505152535455565758595a5b5c5d5e5f' +
|
|
'606162636465666768696a6b6c6d6e6f' +
|
|
'707172737475767778797a7b7c7d7e7f' +
|
|
'808182838485868788898a8b8c8d8e8f' +
|
|
'909192939495969798999a9b9c9d9e9f' +
|
|
'a0a1a2a3a4a5a6a7a8a9aaabacadaeaf' +
|
|
'b0b1b2b3b4b5b6b7b8b9babbbcbdbebf' +
|
|
'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf' +
|
|
'd0d1d2d3d4d5d6d7d8d9dadbdcdddedf' +
|
|
'e0e1e2e3e4e5e6e7e8e9eaebecedeeef' +
|
|
'f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff');
|
|
|
|
console.log('Create buffer from hex string');
|
|
var hexb2 = new Buffer(hexStr, 'hex');
|
|
for (var i = 0; i < 256; i++) {
|
|
assert.equal(hexb2[i], hexb[i]);
|
|
}
|
|
|
|
// test an invalid slice end.
|
|
console.log('Try to slice off the end of the buffer');
|
|
var b = new Buffer([1, 2, 3, 4, 5]);
|
|
var b2 = b.toString('hex', 1, 10000);
|
|
var b3 = b.toString('hex', 1, 5);
|
|
var b4 = b.toString('hex', 1);
|
|
assert.equal(b2, b3);
|
|
assert.equal(b2, b4);
|
|
|
|
|
|
function buildBuffer(data) {
|
|
if (Array.isArray(data)) {
|
|
var buffer = new Buffer(data.length);
|
|
data.forEach(function(v, k) {
|
|
buffer[k] = v;
|
|
});
|
|
return buffer;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
var x = buildBuffer([0x81, 0xa3, 0x66, 0x6f, 0x6f, 0xa3, 0x62, 0x61, 0x72]);
|
|
|
|
console.log(x.inspect());
|
|
assert.equal('<Buffer 81 a3 66 6f 6f a3 62 61 72>', x.inspect());
|
|
|
|
var z = x.slice(4);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(5, z.length);
|
|
assert.equal(0x6f, z[0]);
|
|
assert.equal(0xa3, z[1]);
|
|
assert.equal(0x62, z[2]);
|
|
assert.equal(0x61, z[3]);
|
|
assert.equal(0x72, z[4]);
|
|
|
|
var z = x.slice(0);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(z.length, x.length);
|
|
|
|
var z = x.slice(0, 4);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(4, z.length);
|
|
assert.equal(0x81, z[0]);
|
|
assert.equal(0xa3, z[1]);
|
|
|
|
var z = x.slice(0, 9);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(9, z.length);
|
|
|
|
var z = x.slice(1, 4);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(3, z.length);
|
|
assert.equal(0xa3, z[0]);
|
|
|
|
var z = x.slice(2, 4);
|
|
console.log(z.inspect());
|
|
console.log(z.length);
|
|
assert.equal(2, z.length);
|
|
assert.equal(0x66, z[0]);
|
|
assert.equal(0x6f, z[1]);
|
|
|
|
assert.equal(0, Buffer('hello').slice(0, 0).length);
|
|
|
|
['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) {
|
|
var b = new Buffer(10);
|
|
b.write('あいうえお', encoding);
|
|
assert.equal(b.toString(encoding), 'あいうえお');
|
|
});
|
|
|
|
// 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);
|
|
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);
|
|
}, RangeError);
|
|
|
|
|
|
// attempt to overflow buffers, similar to previous bug in array buffers
|
|
assert.throws(function() {
|
|
var buf = new Buffer(8);
|
|
buf.readFloatLE(0xffffffff);
|
|
}, RangeError);
|
|
|
|
assert.throws(function() {
|
|
var buf = new Buffer(8);
|
|
buf.writeFloatLE(0.0, 0xffffffff);
|
|
}, RangeError);
|
|
|
|
assert.throws(function() {
|
|
var buf = new Buffer(8);
|
|
buf.readFloatLE(0xffffffff);
|
|
}, RangeError);
|
|
|
|
assert.throws(function() {
|
|
var buf = new Buffer(8);
|
|
buf.writeFloatLE(0.0, 0xffffffff);
|
|
}, RangeError);
|
|
|
|
|
|
// ensure negative values can't get past offset
|
|
assert.throws(function() {
|
|
var buf = new Buffer(8);
|
|
buf.readFloatLE(-1);
|
|
}, RangeError);
|
|
|
|
assert.throws(function() {
|
|
var buf = new Buffer(8);
|
|
buf.writeFloatLE(0.0, -1);
|
|
}, RangeError);
|
|
|
|
assert.throws(function() {
|
|
var buf = new Buffer(8);
|
|
buf.readFloatLE(-1);
|
|
}, RangeError);
|
|
|
|
assert.throws(function() {
|
|
var buf = new Buffer(8);
|
|
buf.writeFloatLE(0.0, -1);
|
|
}, RangeError);
|
|
|
|
// offset checks
|
|
var buf = new Buffer(0);
|
|
|
|
assert.throws(function() { buf.readUInt8(0); }, RangeError);
|
|
assert.throws(function() { buf.readInt8(0); }, RangeError);
|
|
|
|
var buf = new Buffer([0xFF]);
|
|
|
|
assert.equal(buf.readUInt8(0), 255);
|
|
assert.equal(buf.readInt8(0), -1);
|
|
|
|
[16, 32].forEach(function(bits) {
|
|
var buf = new Buffer(bits / 8 - 1);
|
|
|
|
assert.throws(function() { buf['readUInt' + bits + 'BE'](0); },
|
|
RangeError,
|
|
'readUInt' + bits + 'BE');
|
|
|
|
assert.throws(function() { buf['readUInt' + bits + 'LE'](0); },
|
|
RangeError,
|
|
'readUInt' + bits + 'LE');
|
|
|
|
assert.throws(function() { buf['readInt' + bits + 'BE'](0); },
|
|
RangeError,
|
|
'readInt' + bits + 'BE()');
|
|
|
|
assert.throws(function() { buf['readInt' + bits + 'LE'](0); },
|
|
RangeError,
|
|
'readInt' + bits + 'LE()');
|
|
});
|
|
|
|
[16, 32].forEach(function(bits) {
|
|
var buf = new Buffer([0xFF, 0xFF, 0xFF, 0xFF]);
|
|
|
|
assert.equal(buf['readUInt' + bits + 'BE'](0),
|
|
(0xFFFFFFFF >>> (32 - bits)));
|
|
|
|
assert.equal(buf['readUInt' + bits + 'LE'](0),
|
|
(0xFFFFFFFF >>> (32 - bits)));
|
|
|
|
assert.equal(buf['readInt' + bits + 'BE'](0),
|
|
(0xFFFFFFFF >> (32 - bits)));
|
|
|
|
assert.equal(buf['readInt' + bits + 'LE'](0),
|
|
(0xFFFFFFFF >> (32 - bits)));
|
|
});
|
|
|
|
// test for common read(U)IntLE/BE
|
|
(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);
|
|
})();
|
|
|
|
// 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');
|
|
})();
|
|
|
|
// Make sure byteLength properly checks for base64 padding
|
|
assert.equal(Buffer.byteLength('aaa=', 'base64'), 2);
|
|
assert.equal(Buffer.byteLength('aaaa==', 'base64'), 3);
|
|
|
|
// Regression test for #5482: should throw but not assert in C++ land.
|
|
assert.throws(function() {
|
|
Buffer('', 'buffer');
|
|
}, TypeError);
|
|
|
|
// 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);
|
|
|
|
// 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')
|
|
);
|
|
|
|
// 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(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.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.throws(function() {
|
|
var b = new Buffer(1);
|
|
b.equals('abc');
|
|
});
|