public void SetAttachesParent()
{
var parent = new SimpleParent();
var child = new Lists.ListMonitors.NotifyChildBase <SimpleParent>();
var list = new ParentList <Lists.ListMonitors.NotifyChildBase <SimpleParent>, SimpleParent>(parent);
Assert.Null(child.Parent);
list.Add(null);
list[0] = child;
Assert.Equal(parent, child.Parent);
}
public void SetReleasesOutgoingParent()
{
var parent = new SimpleParent();
var child1 = new Lists.ListMonitors.NotifyChildBase <SimpleParent>();
var child2 = new Lists.ListMonitors.NotifyChildBase <SimpleParent>();
var list = new ParentList <Lists.ListMonitors.NotifyChildBase <SimpleParent>, SimpleParent>(parent);
Assert.Null(child2.Parent);
list.Add(child1);
Assert.Equal(parent, child1.Parent);
list[0] = child2;
Assert.Null(child1.Parent);
Assert.Equal(parent, child2.Parent);
}
public void ClearSemantics()
{
var parent = new SimpleParent();
var child1 = new Lists.ListMonitors.NotifyChildBase <SimpleParent>();
var child2 = new Lists.ListMonitors.NotifyChildBase <SimpleParent>();
var list = new ParentList <Lists.ListMonitors.NotifyChildBase <SimpleParent>, SimpleParent>(parent);
Assert.Null(child2.Parent);
list.Add(child1);
Assert.Equal(parent, child1.Parent);
list.Add(child2);
Assert.Equal(parent, child2.Parent);
list.Clear();
Assert.Null(child1.Parent);
Assert.Null(child2.Parent);
}
public void TransferBetweenLists()
{
var parent1 = new SimpleParent();
var parent2 = new SimpleParent();
var list1 = parent1.List;
var list2 = parent2.List;
var item = new Lists.ListMonitors.NotifyChildBase <SimpleParent>();
Assert.Null(item.Parent);
list1.Add(item);
Assert.Equal(parent1, item.Parent);
Assert.Contains(item, list1);
Assert.DoesNotContain(item, list2);
list2.Add(item);
Assert.Equal(parent2, item.Parent);
Assert.DoesNotContain(item, list1);
Assert.Contains(item, list2);
}
public void AddAndReleaseSemantics()
{
var parent = new SimpleParent();
var child = new Lists.ListMonitors.NotifyChildBase <SimpleParent>();
var list = new ParentList <Lists.ListMonitors.NotifyChildBase <SimpleParent>, SimpleParent>(parent);
Assert.Null(child.Parent);
using (var foo = INPCCounter.VerifyInpcFired(child, o => o.Parent))
{
list.Add(child);
}
Assert.Equal(parent, child.Parent);
using (var foo = INPCCounter.VerifyInpcFired(child, o => o.Parent))
{
list.RemoveAt(0);
}
Assert.Null(child.Parent);
}
public void LosingChild(Lists.ListMonitors.NotifyChildBase <SimpleParent> child)
{
List.Remove(child);
}
