public void model_save_method_is_called_if_product_does_not_exist()
{
var product = new Product {
Code = "A1", Description = "A1 Desc", Price = 1.0
};
mockProductModel.Stub(p => p.ProductExists(product)).IgnoreArguments().Return(false);
RaiseAddButtonPressed(product);
mockProductModel.AssertWasCalled(m => m.Save(product));
}
