public void TestOrderService_AdjustOrderItems_ShouldUpdatedOrderItemsQuantity(bool isAdd)
{
long _orderId = this.db.Context.Orders.OrderByDescending(o => o.OrderId).Select(o => o.OrderId).FirstOrDefault();
List <OrderItem> orderItems = this.db.Context.OrderItems.Where(oi => oi.OrderId == _orderId).ToList();
int orderItemsCount = orderItems.Count();
OrderViewModelLight model = orderService.GetOrderModel(_orderId).Model as OrderViewModelLight;
if (isAdd)
{
OrderItem newOrderItem = orderItems.Last();
orderItems.Add(newOrderItem);
orderService.AdjustOrderItems(user, model, orderItems, isAdd, null);
orderItems = this.db.Context.OrderItems.Where(oi => oi.OrderId == model.OrderId).ToList();
Assert.That(orderItems.Count(), Is.GreaterThanOrEqualTo(orderItemsCount));
}
else
{
OrderItem orderItem = orderItems.First();
orderItem.Quantity = 10;
orderService.AdjustOrderItems(user, model, orderItems, isAdd, null);
orderItems = this.db.Context.OrderItems.Where(oi => oi.OrderId == model.OrderId).ToList();
Assert.That(orderItems.First().Quantity, Is.EqualTo(10));
}
}