final ZeroMqChannelPacket packet1 = ZeroMqChannelPacket.create (serverIdentifier, header, payload);
client.enqueue (packet1, ZeroMqChannelTest.defaultPollTimeout);
final ZeroMqChannelPacket packet2 = server.dequeue (ZeroMqChannelTest.defaultPollTimeout);
Assert.assertNotNull (packet2);
server.enqueue (packet2, ZeroMqChannelTest.defaultPollTimeout);
final ZeroMqChannelPacket packet3 = client.dequeue (ZeroMqChannelTest.defaultPollTimeout);
Assert.assertNotNull (packet3);
packet1.header.flip ();
packet1.payload.flip ();
Assert.assertEquals (packet1.header, packet3.header);
Assert.assertEquals (packet1.payload, packet3.payload);