public void ClearWelcomeMessage()
        {
            using (var pub = new XPublisherSocket())
                using (var sub = new SubscriberSocket())
                {
                    pub.Bind("inproc://welcome");
                    pub.SetWelcomeMessage("W");
                    pub.ClearWelcomeMessage();

                    sub.Subscribe("W");
                    sub.Connect("inproc://welcome");

                    var subscription = pub.ReceiveFrameBytes();

                    Assert.AreEqual(subscription[1], (byte)'W');

                    Assert.IsFalse(sub.TrySkipFrame());
                }
        }