public void StudioResourceRepository_UpdateItem_NullAction_ExpectException()
{
SetupEnvironmentRepo(Guid.Empty);
var repo = new StudioResourceRepository(GetTestData(), Guid.Empty, _invoke);
var item = repo.ExplorerItemModels.First();
Assert.AreNotEqual(item.DisplayName, "bob");
repo.UpdateItem(item.ResourceId, null, Guid.Empty);
}