private static int getTotalItemsByCategoryName(ProductController controller, string categoryName)
 {
     var productListViewModel = controller.List(categoryName).Model as ProductListViewModel;
     return productListViewModel != null ? productListViewModel.PagingInfo.TotalItems : 0;
 }
 private static IEnumerable<Product> getProductsList(ProductController productController, string category, int page)
 {
     ProductListViewModel productListViewModel = (productController.List(category, page).Model as ProductListViewModel);
     Assert.IsNotNull(productListViewModel);
     return productListViewModel.Products;
 }