public void BubblingOfCollectionChangedEventAfterListPropertyIsChanged()
{
var o = new CollectionChangedAspectTestClass();
var changeCount = 0;
Post.Cast <CollectionChangedAspectTestClass, INotifyCollectionChanged>(o).CollectionChanged +=
delegate {
changeCount++;
};
o.Integers = new EventedList <int>();
o.Integers.Add(1);
Assert.AreEqual(1, changeCount);
o.Integers[0] = 11;
Assert.AreEqual(2, changeCount);
o.Integers.Remove(11);
Assert.AreEqual(3, changeCount);
// the list is empty so add one item again and use clear to get
// a (single) change event notification
o.Integers.Add(1);
o.Integers.Clear();
Assert.AreEqual(5, changeCount);
// the list is empty so clear should not fire another change event
o.Integers.Clear();
Assert.AreEqual(5, changeCount);
}
public void TestNoBubbling()
{
var o = new CollectionChangedAspectTestClass();
var changeCount = 0;
Post.Cast <CollectionChangedAspectTestClass, INotifyCollectionChanged>(o).CollectionChanged +=
delegate { changeCount++; };
o.NoBubblingIntegers.Add(5);
Assert.AreEqual(0, changeCount);
}
public void BubblingWorksWhenUsingEventedListsAsElementsInEventedList()
{
var o = new CollectionChangedAspectTestClass();
var changeCount = 0;
Post.Cast <CollectionChangedAspectTestClass, INotifyCollectionChanged>(o).CollectionChanged +=
delegate {
changeCount++;
};
o.Lists.Add(new EventedList <int>(new int[] { 1, 2, 3 }));
o.Lists[0][0] = 4;
Assert.AreEqual(2, changeCount);
}
public void BubbleEventFromContainingList()
{
var o = new CollectionChangedAspectTestClass();
var changeCount = 0;
Post.Cast <CollectionChangedAspectTestClass, INotifyCollectionChanged>(o).CollectionChanged +=
delegate(object sender, NotifyCollectionChangedEventArgs e)
{
Assert.AreEqual(5, e.Item);
changeCount++;
};
o.Integers.Add(5);
Assert.AreEqual(1, changeCount);
}
public void BubblingOfCollectionChangedEventAfterObjectsListIsChanged()
{
var o = new CollectionChangedAspectTestClass();
var element = new CollectionChangedAspectTestClass();
o.ListContainers.Add(element);
var changeCount = 0;
Post.Cast <CollectionChangedAspectTestClass, INotifyCollectionChanged>(o).CollectionChanged +=
delegate {
changeCount++;
};
o.ListContainers.Remove(element);
Assert.AreEqual(1, changeCount);
}
public void BubblingWorksWhenPropertyOfContainerIsResetWithAnotherEventedList()
{
var o = new CollectionChangedAspectTestClass();
var oldIntegers = o.Integers;
o.Integers = new EventedList <int>(); // <- reset list property to a new value
var changeCount = 0;
Post.Cast <CollectionChangedAspectTestClass, INotifyCollectionChanged>(o).CollectionChanged +=
delegate {
changeCount++;
};
oldIntegers.Add(0); // <- shouldn't generate event in o anymore
o.Integers.Add(100);
Assert.AreEqual(1, changeCount);
}
