public void UpdateProductCategory()
{
NorthwindDataStore northwindDataStore = new NorthwindDataStore();
List <CategoryInfo> categoryInfos = northwindDataStore.GetCategoriesInfo();
List <Product> productsToChange = categoryInfos.FirstOrDefault().Products.Skip(2).ToList();
Category newCategory = categoryInfos.Last().Category;
CategoryInfo categoryInfo = northwindDataStore.GetCategoryInfo(newCategory);
northwindDataStore.UpdateProductsCategory(productsToChange, newCategory);
Assert.AreNotEqual(categoryInfo.Products.Count, northwindDataStore.GetCategoryInfo(newCategory).Products.Count);
}
