public void AddSubCategoryTest() { Category parentCategory = dataService.FindMany(c => c.ParentCategoryId == null).OrderBy(c => Guid.NewGuid()).FirstOrDefault(); Category newEntity = new Category(); newEntity.Name = "Kategori {0}".FormatWith(GetRandom()); newEntity.IsActive = true; newEntity.Description = GetRandomString(10); newEntity.ParentCategory = parentCategory; dataService.Insert(newEntity); dataService.Save(); Assert.AreNotEqual(Guid.Empty, newEntity.CategoryId); }