public void TestDequeue()
{
FifoMessageDispatchChannel channel = new FifoMessageDispatchChannel();
MessageDispatch dispatch1 = new MessageDispatch();
MessageDispatch dispatch2 = new MessageDispatch();
MessageDispatch dispatch3 = new MessageDispatch();
channel.Start();
Assert.IsTrue( channel.Running == true );
DateTime timeStarted = DateTime.Now;
Assert.IsTrue( channel.Dequeue(TimeSpan.FromMilliseconds(1000)) == null );
DateTime timeFinished = DateTime.Now;
TimeSpan elapsed = timeFinished - timeStarted;
Assert.IsTrue( elapsed.TotalMilliseconds >= 999 );
channel.Enqueue( dispatch1 );
channel.Enqueue( dispatch2 );
channel.Enqueue( dispatch3 );
Assert.IsTrue( channel.Empty == false );
Assert.IsTrue( channel.Count == 3 );
Assert.IsTrue( channel.Dequeue( TimeSpan.FromMilliseconds(Timeout.Infinite) ) == dispatch1 );
Assert.IsTrue( channel.Dequeue( TimeSpan.Zero ) == dispatch2 );
Assert.IsTrue( channel.Dequeue( TimeSpan.FromMilliseconds(1000) ) == dispatch3 );
Assert.IsTrue( channel.Count == 0 );
Assert.IsTrue( channel.Empty == true );
}