public void Clear_INotifyPropertyChangedItems_RemovesPropertyChangedEventHandlers()
{
var item1 = new Item();
var item2 = new Item();
var list = new List <Item> {
item1, item2, null
};
var bindingList = new BindingSet <Item>(list);
Assert.Equal(1, item1.InvocationList.Length);
Assert.Equal(1, item2.InvocationList.Length);
bool calledListChanged = false;
bindingList.ListChanged += (object sender, ListChangedEventArgs e) =>
{
calledListChanged = true;
Assert.Equal(ListChangedType.Reset, e.ListChangedType);
Assert.Equal(-1, e.NewIndex);
};
bindingList.Clear();
Assert.True(calledListChanged);
Assert.Empty(bindingList);
Assert.Null(item1.InvocationList);
Assert.Null(item2.InvocationList);
}
public void Clear_Invoke_Success()
{
var bindingList = new BindingSet <object> {
new object(), new object()
};
bool calledListChanged = false;
bindingList.ListChanged += (object sender, ListChangedEventArgs e) =>
{
calledListChanged = true;
Assert.Equal(ListChangedType.Reset, e.ListChangedType);
Assert.Equal(-1, e.NewIndex);
};
bindingList.Clear();
Assert.True(calledListChanged);
Assert.Empty(bindingList);
}
