test/parallel/test-dgram-send-callback-buffer.js


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'use strict';

const common = require('../common');
const assert = require('assert');
const dgram = require('dgram');

const client = dgram.createSocket('udp4');

const buf = Buffer.allocUnsafe(256);

const onMessage = common.mustSucceed((bytes) => {
  assert.strictEqual(bytes, buf.length);
  client.close();
});

client.bind(0, () => client.send(buf,
                                 client.address().port,
                                 common.localhostIPv4,
                                 onMessage));