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85ab4a5f12
Several changes:
* Soft-Deprecate Buffer() constructors
* Add `Buffer.from()`, `Buffer.alloc()`, and `Buffer.allocUnsafe()`
* Add `--zero-fill-buffers` command line option
* Add byteOffset and length to `new Buffer(arrayBuffer)` constructor
* buffer.fill('') previously had no effect, now zero-fills
* Update the docs
PR-URL: https://github.com/nodejs/node/pull/4682
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
96 lines
2.0 KiB
JavaScript
96 lines
2.0 KiB
JavaScript
'use strict';
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require('../common');
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var assert = require('assert');
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var fromList = require('_stream_readable')._fromList;
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// tiny node-tap lookalike.
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var tests = [];
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var count = 0;
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function test(name, fn) {
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count++;
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tests.push([name, fn]);
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}
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function run() {
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var next = tests.shift();
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if (!next)
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return console.error('ok');
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var name = next[0];
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var fn = next[1];
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console.log('# %s', name);
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fn({
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same: assert.deepEqual,
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equal: assert.equal,
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end: function() {
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count--;
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run();
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}
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});
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}
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// ensure all tests have run
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process.on('exit', function() {
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assert.equal(count, 0);
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});
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process.nextTick(run);
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test('buffers', function(t) {
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var list = [ Buffer.from('foog'),
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Buffer.from('bark'),
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Buffer.from('bazy'),
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Buffer.from('kuel') ];
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// read more than the first element.
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var ret = fromList(6, { buffer: list, length: 16 });
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t.equal(ret.toString(), 'foogba');
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// read exactly the first element.
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ret = fromList(2, { buffer: list, length: 10 });
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t.equal(ret.toString(), 'rk');
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// read less than the first element.
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ret = fromList(2, { buffer: list, length: 8 });
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t.equal(ret.toString(), 'ba');
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// read more than we have.
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ret = fromList(100, { buffer: list, length: 6 });
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t.equal(ret.toString(), 'zykuel');
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// all consumed.
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t.same(list, []);
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t.end();
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});
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test('strings', function(t) {
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var list = [ 'foog',
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'bark',
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'bazy',
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'kuel' ];
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// read more than the first element.
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var ret = fromList(6, { buffer: list, length: 16, decoder: true });
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t.equal(ret, 'foogba');
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// read exactly the first element.
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ret = fromList(2, { buffer: list, length: 10, decoder: true });
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t.equal(ret, 'rk');
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// read less than the first element.
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ret = fromList(2, { buffer: list, length: 8, decoder: true });
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t.equal(ret, 'ba');
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// read more than we have.
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ret = fromList(100, { buffer: list, length: 6, decoder: true });
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t.equal(ret, 'zykuel');
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// all consumed.
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t.same(list, []);
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t.end();
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});
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