How to ensure that the view is safe of null exceptions

Question

I have in the controller a custom DataView object that comprises 2 lists. I populate them and than pass the DataView object as model for my view. In view when displaying the data I am checking for null reference. I wonder how to write unit tests to ensure that the programmer did not forget to check for null reference in the view. I would like to test the view for the exceptions of this type. If somewone would give me a good sample with rhino mocks testing framework I would greatly apreciated, because I use it in mostly parts. Thanks.

Answer 1

While I don't think the following is ideal, it will prevent NREs:

public class ViewModel
{
  public IEnumerable<Item> Items
  {
     get { return items ?? new List<Item>(); }
     set { items = value; }
  }
}