'use strict'; var common = require('../common'); var assert = require('assert'); var fs = require('fs'); var dgram = require('dgram'); var callbacks = 0; var client; var timer; if (process.platform === 'darwin') { console.log('1..0 # Skipped: because of 17894467 Apple bug'); return; } client = dgram.createSocket('udp4'); client.bind(common.PORT); function callback() { callbacks++; if (callbacks == 2) { clearTimeout(timer); client.close(); } else if (callbacks > 2) { throw new Error('the callbacks should be called only two times'); } } client.on('message', function(buffer, bytes) { callback(); }); client.send(new Buffer(1), 0, 0, common.PORT, '127.0.0.1', function(err, len) { callback(); }); timer = setTimeout(function() { throw new Error('Timeout'); }, 200);