public void TestFilterMaybe()
{
StreamSink <Maybe <string> > s = Stream.CreateSink <Maybe <string> >();
List <string> @out = new List <string>();
IListener l = s.FilterMaybe().Listen(@out.Add);
s.Send(Maybe.Some("tomato"));
s.Send(Maybe.None);
s.Send(Maybe.Some("peach"));
s.Send(Maybe.None);
s.Send(Maybe.Some("pear"));
l.Unlisten();
CollectionAssert.AreEqual(new[] { "tomato", "peach", "pear" }, @out);
}
public void TestFilterMaybe()
{
StreamSink <IMaybe <string> > s = new StreamSink <IMaybe <string> >();
List <string> @out = new List <string>();
using (s.FilterMaybe().Listen(@out.Add))
{
s.Send(Maybe.Just("tomato"));
s.Send(Maybe.Nothing <string>());
s.Send(Maybe.Just("peach"));
s.Send(Maybe.Just <string>(null));
s.Send(Maybe.Just("pear"));
}
CollectionAssert.AreEqual(new[] { "tomato", "peach", null, "pear" }, @out);
}
public void TestFilterMaybe()
{
StreamSink<IMaybe<string>> e = new StreamSink<IMaybe<string>>();
List<string> @out = new List<string>();
using (e.FilterMaybe().Listen(s => { @out.Add(s); }))
{
e.Send(Maybe.Just("tomato"));
e.Send(Maybe.Nothing<string>());
e.Send(Maybe.Just("peach"));
e.Send(Maybe.Just<string>(null));
e.Send(Maybe.Just("pear"));
}
CollectionAssert.AreEqual(new[] { "tomato", "peach", null, "pear" }, @out);
}
