node/test/parallel/test-dgram-send-callback-multi-buffer.js
James M Snell 85ab4a5f12 buffer: add .from(), .alloc() and .allocUnsafe()
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>
2016-03-16 08:34:02 -07:00

33 lines
818 B
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const dgram = require('dgram');
const client = dgram.createSocket('udp4');
const timer = setTimeout(function() {
throw new Error('Timeout');
}, common.platformTimeout(200));
const onMessage = common.mustCall(function(err, bytes) {
assert.equal(bytes, buf1.length + buf2.length);
clearTimeout(timer);
client.close();
});
const buf1 = Buffer.alloc(256, 'x');
const buf2 = Buffer.alloc(256, 'y');
client.on('listening', function() {
client.send([buf1, buf2], common.PORT, common.localhostIPv4, onMessage);
});
client.on('message', function(buf, info) {
const expected = Buffer.concat([buf1, buf2]);
assert.ok(buf.equals(expected), 'message was received correctly');
client.close();
});
client.bind(common.PORT);