Public Function New( _
   ByVal collection As IEnumerable(Of T) _
)

public DisposingList<T>( 
   IEnumerable<T> collection
)

disposeOrder.Clear();
DisposingList<DisposeInOrder> list = new DisposingList<DisposeInOrder>();

DisposeInOrder a = new DisposeInOrder();
DisposeInOrder b = new DisposeInOrder();

list.Add(a);
list.Add(b);
list.Add(null);
list.Dispose();

//Removed from list?
Assert.AreEqual(0, list.Count);
//All were disposed?
Assert.AreEqual(2, disposeOrder.Count);
//Disposed in reverse order of creation?
Assert.IsTrue(object.ReferenceEquals(b, disposeOrder[0]));
Assert.IsTrue(object.ReferenceEquals(a, disposeOrder[1]));

Assert.AreEqual(2, new DisposingList<DisposeInOrder>(new DisposeInOrder[] { a, b }).Count);
Assert.AreEqual(0, new DisposingList<DisposeInOrder>(5).Count);

disposeOrder.Clear()
Dim list As New DisposingList(Of DisposeInOrder)()

Dim a As New DisposeInOrder()
Dim b As New DisposeInOrder()

list.Add(a)
list.Add(b)
list.Add(Nothing)
list.Dispose()

'Removed from list?
Assert.AreEqual(0, list.Count)
'All were disposed?
Assert.AreEqual(2, disposeOrder.Count)
'Disposed in reverse order of creation?
Assert.IsTrue(Object.ReferenceEquals(b, disposeOrder(0)))
Assert.IsTrue(Object.ReferenceEquals(a, disposeOrder(1)))

Assert.AreEqual(2, New DisposingList(Of DisposeInOrder)(New DisposeInOrder() {a, b}).Count)
Assert.AreEqual(0, New DisposingList(Of DisposeInOrder)(5).Count)