public void Simple_Upcast_of_single_event()
{
StaticUpcaster.Clear();
StaticUpcaster.RegisterUpcaster(new UpcastedEvent.Upcaster());
var evt = new UpcastedEvent("Hello world");
var upcasted = StaticUpcaster.UpcastEvent(evt);
Assert.That(upcasted, Is.InstanceOf <NewEvent>());
var upcastedEvent = (NewEvent)upcasted;
Assert.That(upcastedEvent.RenamedProperty, Is.EqualTo("Hello world"));
}
public void Chain_of_upcast()
{
StaticUpcaster.Clear();
StaticUpcaster.RegisterUpcaster(new UpcastedEvent.Upcaster());
StaticUpcaster.RegisterUpcaster(new ReallyOldEvent.Upcaster());
var evt = new ReallyOldEvent(42);
var upcasted = StaticUpcaster.UpcastEvent(evt);
Assert.That(upcasted, Is.InstanceOf <NewEvent>());
var upcastedEvent = (NewEvent)upcasted;
Assert.That(upcastedEvent.RenamedProperty, Is.EqualTo("Property 42"));
}
/// <summary>
/// Enchance and upcast the event.
/// </summary>
public void EnhanceAndUpcastEvent()
{
if (_enhanced == false && Event is DomainEvent)
{
_enhanced = true;
var domainEvent = Event as DomainEvent;
domainEvent.CommitId = CommitId;
domainEvent.Version = Version;
domainEvent.Context = Context;
domainEvent.CheckpointToken = CheckpointToken;
Event = StaticUpcaster.UpcastEvent(domainEvent);
}
}