public void Given_linked_Cancelable_When_canceling_underlying_Then_linked_should_be_canceled()
{
var underlying = new Cancelable(Sys.Scheduler);
var linked = Cancelable.CreateLinkedCancelable(Sys.Scheduler, underlying);
var latch = CreateTestLatch();
linked.Token.Register(() => latch.CountDown());
underlying.Cancel();
underlying.IsCancellationRequested.ShouldBeTrue();
underlying.Token.IsCancellationRequested.ShouldBeTrue();
latch.Ready();
linked.IsCancellationRequested.ShouldBeTrue();
linked.Token.IsCancellationRequested.ShouldBeTrue();
}
