node/test/simple/test-dgram-send-callback-buffer-length.js

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var common = require('../common');
var assert = require('assert');

var fs = require('fs');
var dgram = require('dgram');
var callbacks = 0;
var client, timer, buf, len, offset;


client = dgram.createSocket('udp4');

buf = new Buffer(256);
offset = 20;

len = buf.length - offset;


client.send(buf, offset, len, common.PORT, "127.0.0.1", function (err, bytes) {
    assert.notEqual(bytes, buf.length);
    assert.equal(bytes, buf.length - offset);
    clearTimeout(timer);
    client.close();
});

timer = setTimeout(function() {
  throw new Error('Timeout');
}, 200);