public void DisposingFolderDisposesContents()
{
Folder folder = new Folder();
IDataItem dataItem = mocks.StrictMultiMock <IDataItem>(new[] { typeof(IDisposable) });
(dataItem as IDisposable).Expect(d => d.Dispose()).Repeat.Once(); //our test
dataItem.Expect(d => d.LinkedBy).Return(new List <IDataItem>()).Repeat.Any();
dataItem.Expect(d => d.Owner).Repeat.Any().SetPropertyAndIgnoreArgument();
mocks.ReplayAll();
folder.Items.Add(dataItem);
folder.Dispose();
mocks.VerifyAll();
}