public void Run()
{
DiscreteCellSink <int> x = new DiscreteCellSink <int>(0);
IListener l = x.Listen(Console.WriteLine);
x.Send(10);
x.Send(20);
x.Send(30);
l.Unlisten();
}
public void TestListen()
{
DiscreteCellSink <int> c = DiscreteCell.CreateSink(9);
List <int> @out = new List <int>();
IListener l = c.Listen(@out.Add);
c.Send(2);
c.Send(7);
l.Unlisten();
CollectionAssert.AreEqual(new[] { 9, 2, 7 }, @out);
}