public void CanApplyMishandledChangeToAggregateWithoutEffectOrException()
{
// arrange
var aggregate = new ChangeableAggregate();
var @event = new SomethingElseHappened();
// act
aggregate.ApplyEvent(@event);
// assert
aggregate.Change.Should().BeNull();
}
public void CanApplyMishandledChangeToAggregateWithoutEffectOrException()
{
// arrange
var aggregate = new ChangeableAggregate();
var @event = new SomethingElseHappened();
// act
aggregate.ApplyEvent(@event);
// assert
aggregate.Change.Should().BeNull();
}
public void MissingEventRouteThrowsException()
{
// Setup the event router.
var builder = new ApplyEventRouterBuilder <MyAggregateRoot, IEvent>();
builder.Add <SomethingHappened>((agg, e) => agg.ApplyEvent(e));
var router = builder.Build();
// Set up the initial state.
var initialState = new MyAggregateRoot();
// Create some events to apply to the aggregate.
var event1 = new SomethingHappened("Foo");
var event2 = new SomethingElseHappened("Bar");
// Route the events.
var exception = Assert.Throws <InvalidOperationException>(() => router.Route(initialState, event1, event2));
const string expectedMessage = "No route or default route found when attempting to apply " +
"SomethingElseHappened to MyAggregateRoot";
Assert.That(exception.Message, Is.EqualTo(expectedMessage));
}
public void EventIsRoutedAndApplied()
{
// Setup the event router.
var builder = new ApplyEventRouterBuilder <MyAggregateRoot, IEvent>();
builder.Add <SomethingHappened>((agg, e) => agg.ApplyEvent(e));
builder.Add <SomethingElseHappened>((agg, e) => agg.ApplyEvent(e));
var router = builder.Build();
// Set up the initial state.
var initialState = new MyAggregateRoot();
// Create some events to apply to the aggregate.
var event1 = new SomethingHappened("Foo");
var event2 = new SomethingElseHappened("Bar");
// Route the events.
var newState = router.Route(initialState, event1, event2);
Assert.That(newState.State, Is.EqualTo("Foo"));
Assert.That(newState.OtherState, Is.EqualTo("Bar"));
}
public void DefaultEventRouteIsInvokedWhenSpecified()
{
// Setup the event router.
var builder = new ApplyEventRouterBuilder <MyAggregateRoot, IEvent>();
builder.Add <SomethingHappened>((agg, e) => agg.ApplyEvent(e));
builder.Add <IEvent>((agg, e) => agg.DefaultApplyEvent(e)); // Default route
var router = builder.Build();
// Set up the initial state.
var initialState = new MyAggregateRoot();
// Create some events to apply to the aggregate.
var event1 = new SomethingHappened("Foo");
var event2 = new SomethingElseHappened("Bar");
// Route the events.
var newState = router.Route(initialState, event1, event2);
Assert.That(newState.State, Is.EqualTo("Foo"));
// We expect SomethingElseHappened to do nothing, since the default route just returns "this".
Assert.That(newState.OtherState, Is.Null);
}
private void Handle(SomethingElseHappened @event, int count)
{
this.Change = @event;
}
public void Apply(SomethingElseHappened e)
{
}
private void Handle(SomethingElseHappened @event, int count)
{
this.Change = @event;
}
protected void Apply(SomethingElseHappened evt)
{
ApplySomethingElseHappenedCalled = true;
}
public MyAggregateRoot ApplyEvent(SomethingElseHappened @event)
{
return(new MyAggregateRoot(State, @event.OtherState));
}