public void Execution_reduces_inventory_and_sets_order_item_to_a_shipped_state()
{
var productID = 1;
var orderItemID = 1;
var inventoryItem = new InventoryItem { QuantityOnHand = 5, ProductID = productID };
var orderItem = new OrderItem { ProductID = productID, Quantity = 5, OrderStatusID = OrderStatusConstants.SUBMITTED_STATUS, ShippedDate = null, BackorderedDate = null };
var inventoryDataProxy = new Mock<IInventoryItemDataProxy>();
inventoryDataProxy.Setup(p => p.GetByProduct(productID)).Returns(inventoryItem);
inventoryDataProxy.Setup(p => p.Update(It.IsAny<InventoryItem>()))
.Callback<InventoryItem>((item) => inventoryItem = item);
var orderItemDataProxy = new Mock<IOrderItemDataProxy>();
orderItemDataProxy.Setup(p => p.GetByID(orderItemID)).Returns(orderItem);
orderItemDataProxy.Setup(p => p.Ship(It.IsAny<OrderItem>())).Returns(orderItem);
var command = new ShipOrderItemCommand(orderItemID, orderItemDataProxy.Object, inventoryDataProxy.Object, new TransactionContextStub());
var result = command.Execute();
orderItem = result.Value;
orderItem.ShippedDate.Value.Date.ShouldBe(DateTime.Now.ToUniversalTime().Date);
orderItem.OrderStatus().IsShipped.ShouldBeTrue();
orderItem.BackorderedDate.ShouldBeNull();
inventoryItem.QuantityOnHand.ShouldBe(0);
}
