public void SetProperty_GivenSimplePropertyFilter_WhenSecondOrderUnset_IgnoresNestedPropertyChange()
{
var secondOrder = GetSecondOrderObject();
var p = new PropertyChangedTrigger(secondOrder, "Child", null, _logger);
bool triggered = false;
p.Activate(null);
// hook up the event after the first depth is set so that the trigger must come from next depth.
p.Triggered += (sender, args) => { triggered = true; };
// unset the nested property
secondOrder.Child.Child = null;
Assert.IsFalse(triggered);
}
public void SetProperty_GivenThirdOrderNesting_WhenThirdOrderSet_RaisesTriggeredEvent()
{
var thirdOrder = GetThirdOrderObject();
var p = new PropertyChangedTrigger(thirdOrder, "Child.Child.Child", null, _logger);
bool triggered = false;
int triggeredBy = -1;
p.Triggered += (sender, args) => {
triggeredBy = ((args.GetTripOrigin().Signal as BoundPropertyChangedEventArgs).PropertyOwner as NotifyPropertyChangedImpl).NestLevel;
triggered = true;
};
p.Activate(null);
thirdOrder.Child.Child.Child = null;
Assert.IsTrue(triggered);
Assert.AreEqual(2, triggeredBy);
}
public void SetProperty_GivenSimplePropertyFilter_WhenFirstOrdeSet_RaisesTriggeredEvent()
{
var firstOrder = new NotifyPropertyChangedImpl(0);
var p = new PropertyChangedTrigger(firstOrder, "Child", null, _logger);
bool triggered = false;
int triggeredBy = -1;
p.Triggered += (sender, args) => {
triggeredBy = ((args.GetTripOrigin().Signal as BoundPropertyChangedEventArgs).PropertyOwner as NotifyPropertyChangedImpl).NestLevel;
triggered = true;
};
p.Activate(null);
firstOrder.Child = new NotifyPropertyChangedImpl(1);
Assert.IsTrue(triggered);
Assert.AreEqual(0, triggeredBy);
}