public void _04_AddOrder_ShouldAddAnOrderToTheOrdersCollectionAndInvokeTheOrderCreatedEvent()
{
AssertHasOrdersPropertyWithBackingField();
AssertHasOrderCreatedEvent();
//Arrange
bool eventRaised = false;
int numberOfBurgers = Random.Next(1, 11);
_eventInfo.AddEventHandler(_frontDesk, new OrderCreatedHandler((sender, args) =>
{
eventRaised = true;
Assert.That(args.Order.NumberOfBurgers, Is.EqualTo(numberOfBurgers), "The 'NumberOfBurgers' of the added order is not correct.");
}));
//Act
_frontDesk.AddOrder(numberOfBurgers);
//Assert
var orders = (ReadOnlyObservableCollection <IOrder>)_ordersProperty.GetValue(_frontDesk);
Assert.That(orders.Count, Is.EqualTo(1), "The added order cannot be found in the 'Orders' property.");
Assert.That(orders.First().NumberOfBurgers, Is.EqualTo(numberOfBurgers), "The 'NumberOfBurgers' of the added order is not correct.");
Assert.That(eventRaised, Is.True, "The 'OrderCreated' event was not invoked.");
}
public void ShouldListenForCreatedOrdersAndAddThemInAQueue()
{
Queue <IOrder> queue = GetAndAssertQueueFieldValue();
_frontDesk.AddOrder(1);
Assert.That(queue.Count, Is.EqualTo(1),
"When the 'AddOrder' method of the 'Frontdesk' is invoked, the queue should contain exactly one order.");
}