public void DeleteUserSelectedReferences()
 {
     foreach (UserSelectedReferenceUsage referenceUsage in Enum.GetValues(typeof(UserSelectedReferenceUsage)))
     {
         ReferenceManager.AddUserSelectedReferences(GetContext(), ReferenceManagerTest.GetSomeReferenceIds(GetContext()), referenceUsage);
         ReferenceManager.DeleteUserSelectedReferences(GetContext());
     }
 }