public void AddForwardOnChangeMultipleTimes()
{
// setup
var events = new BindableEvents(new Bindable <int>());
var bindableToForwardFrom = new Bindable <string>();
// add twice
events.ForwardOnChange(bindableToForwardFrom);
events.ForwardOnChange(bindableToForwardFrom);
var forwarded = (Dictionary <IBindable, BindableCallback>)UnitTestUtil.GetProtected(events, "ForwardedBindables");
Assert.IsTrue(forwarded.ContainsKey((IBindable)bindableToForwardFrom), "The forwareded bnindable should be known.");
Assert.AreEqual(1, forwarded.Count, "There should only be one forward listener.");
}
public void ForwardOnChangeTest()
{
// setup
var events = new BindableEvents(new Bindable <int>());
var bindableToForwardFrom = new Bindable <string>();
bindableToForwardFrom.Set("test");
// register forward
events.ForwardOnChange(bindableToForwardFrom);
var counter = 0;
events.Add((c, o) => { counter++; });
// dispatch
bindableToForwardFrom.Dispatch();
Assert.AreEqual(1, counter, "The event should be forwarded once.");
// remove the listener and dispatch again
events.RemoveForwardedOnChange(bindableToForwardFrom);
bindableToForwardFrom.Dispatch();
Assert.AreEqual(1, counter, "The event should not be forwarded again.");
}
