public void OrderDelete() { DataBase dataBase = new DataBase(); Order order = new Order { ItemId = 555, Count = 1, ItemStatusId = 1, LegalEntity = true, PersonInfoId = 1, Postage = 0M.DecimalToString(), Price = 1M.DecimalToString(), }; int rowsInserted = dataBase.OrderInsert(order); Assert.AreEqual(1, rowsInserted); List<Order> list = dataBase.OrderGetByItemId(555); Assert.IsNotNull(list); Assert.AreEqual(555, list[0].ItemId); int rowsDeleted = dataBase.OrderDelete(list[0].Id); Assert.AreEqual(1, rowsDeleted); list = dataBase.OrderGetByItemId(555); Assert.IsNull(list); }