public async Task TestListenOnceAsync()
{
BehaviorSink <int> b = Behavior.CreateSink(9);
int result = await Transaction.Run(() => Operational.Value(b).ListenOnceAsync());
b.Send(2);
b.Send(7);
Assert.AreEqual(9, result);
}
public void TestListenOnce()
{
BehaviorSink <int> b = Behavior.CreateSink(9);
List <int> @out = new List <int>();
IListener l = Transaction.Run(() => Operational.Value(b).ListenOnce(@out.Add));
b.Send(2);
b.Send(7);
l.Unlisten();
CollectionAssert.AreEqual(new[] { 9 }, @out);
}
public void TestUpdates()
{
BehaviorSink <int> b = Behavior.CreateSink(9);
List <int> @out = new List <int>();
IListener l = Operational.Updates(b).Listen(@out.Add);
b.Send(2);
b.Send(7);
l.Unlisten();
CollectionAssert.AreEqual(new[] { 2, 7 }, @out);
}
public void TestGate()
{
StreamSink <char?> sc = Stream.CreateSink <char?>();
BehaviorSink <bool> cGate = Behavior.CreateSink(true);
List <char?> @out = new List <char?>();
IListener l = sc.Gate(cGate).Listen(@out.Add);
sc.Send('H');
cGate.Send(false);
sc.Send('O');
cGate.Send(true);
sc.Send('I');
l.Unlisten();
CollectionAssert.AreEqual(new[] { 'H', 'I' }, @out);
}
public void FunctionalBehaviorLoop()
{
BehaviorSink <int> s = Behavior.CreateSink(0);
Behavior <int> result = Behavior.Loop <int>().WithoutCaptures(l => Operational.Updates(s).Snapshot(l, (n, o) => n + o).Hold(0).AsBehavior());
List <int> @out = new List <int>();
using (Transaction.Run(() => Operational.Value(result).Listen(@out.Add)))
{
s.Send(1);
s.Send(2);
s.Send(3);
}
CollectionAssert.AreEqual(new[] { 0, 1, 3, 6 }, @out);
}
public void TestSnapshot()
{
BehaviorSink <int> b = Behavior.CreateSink(0);
StreamSink <long> trigger = Stream.CreateSink <long>();
List <string> @out = new List <string>();
IListener l = trigger.Snapshot(b, (x, y) => x + " " + y).Listen(@out.Add);
trigger.Send(100L);
b.Send(2);
trigger.Send(200L);
b.Send(9);
b.Send(1);
trigger.Send(300L);
l.Unlisten();
CollectionAssert.AreEqual(new[] { "100 0", "200 2", "300 1" }, @out);
}
public void FunctionalBehaviorLoopWithCaptures()
{
BehaviorSink <int> s = Behavior.CreateSink(0);
(Behavior <int> result, Behavior <int> s2) = Behavior.Loop <int>()
.WithCaptures(l => (Behavior: Operational.Updates(s).Snapshot(l, (n, o) => n + o).Hold(0).AsBehavior(), Captures: s.Map(v => 2 * v)));
List <int> @out = new List <int>();
List <int> out2 = new List <int>();
using (Transaction.Run(() => Operational.Value(result).Listen(@out.Add)))
using (Transaction.Run(() => Operational.Value(s2).Listen(out2.Add)))
{
s.Send(1);
s.Send(2);
s.Send(3);
}
CollectionAssert.AreEqual(new[] { 0, 1, 3, 6 }, @out);
CollectionAssert.AreEqual(new[] { 0, 2, 4, 6 }, out2);
}
public void ImperativeBehaviorLoop()
{
BehaviorSink <int> s = Behavior.CreateSink(0);
Behavior <int> result = Transaction.Run(
() =>
{
BehaviorLoop <int> l = new BehaviorLoop <int>();
Behavior <int> resultLocal = Operational.Updates(s).Snapshot(l, (n, o) => n + o).Hold(0).AsBehavior();
l.Loop(resultLocal);
return(resultLocal);
});
List <int> @out = new List <int>();
using (Transaction.Run(() => Operational.Value(result).Listen(@out.Add)))
{
s.Send(1);
s.Send(2);
s.Send(3);
}
CollectionAssert.AreEqual(new[] { 0, 1, 3, 6 }, @out);
}
public void ImperativeBehaviorLoopFailsWhenLoopedInSeparateTransaction()
{
InvalidOperationException actual = null;
BehaviorLoop <int> l = null;
new Thread(
() =>
Transaction.RunVoid(
() =>
{
l = new BehaviorLoop <int>();
Thread.Sleep(500);
})).Start();
try
{
BehaviorSink <int> s = Behavior.CreateSink(0);
Transaction.RunVoid(
() =>
{
Thread.Sleep(250);
Behavior <int> resultLocal = Operational.Updates(s).Snapshot(l, (n, o) => n + o).Hold(0).AsBehavior();
l.Loop(resultLocal);
});
}
catch (InvalidOperationException e)
{
actual = e;
}
Thread.Sleep(500);
Assert.IsNotNull(actual);
Assert.AreEqual("Loop must be looped in the same transaction that it was created in.", actual.Message);
}
public void ImperativeBehaviorLoopFailsWhenLoopedTwice()
{
InvalidOperationException actual = null;
try
{
BehaviorSink <int> s = Behavior.CreateSink(0);
Transaction.RunVoid(
() =>
{
BehaviorLoop <int> l = new BehaviorLoop <int>();
Behavior <int> resultLocal = Operational.Updates(s).Snapshot(l, (n, o) => n + o).Hold(0).AsBehavior();
l.Loop(resultLocal);
l.Loop(resultLocal);
});
}
catch (InvalidOperationException e)
{
actual = e;
}
Assert.IsNotNull(actual);
Assert.AreEqual("Loop was looped more than once.", actual.Message);
}