private void When(InvoiceItemAddedEvent @event)
{
Id = @event.AggregateRootId;
var invoiceItem = new InvoiceItem
{
Price = @event.Price,
Quantity = @event.Quantity
};
Items.Add(invoiceItem);
}
public void Handle(InvoiceItemAddedEvent @event)
{
var existing = this.items.FirstOrDefault(x => x.ProductId == @event.Item.ProductId);
if (existing != null)
{
this.items.Remove(existing);
this.items.Add(new InvoiceItem(
existing.ProductId,
existing.Price,
existing.Amount + @event.Item.Amount));
}
else
{
this.items.Add(@event.Item);
}
}
public void AllowToAddItemToOpenInvoice()
{
var item = new InvoiceItem("1", 1m, 1u);
var addItemCommand = new AddInvoiceItemCommand(item);
InvoiceItemAddedEvent invoiceEvent = null;
using (this.invoiceRoot
.Where(x => x is InvoiceItemAddedEvent)
.Select(x => x as InvoiceItemAddedEvent)
.Subscribe(x => invoiceEvent = x))
{
this.invoice.SetupGet(x => x.IsOpen).Returns(true);
this.invoiceRoot.Execute(this.invoice.Object, addItemCommand);
Assert.Equal(item, invoiceEvent.Item);
}
}
