Dynamic Behavior

I'm proud to introduce a very interesting api--become.

Become

Become can replace the store's behavior. It's very similar to the redux's replaceReducer.

test("change the behavior of self while self is living", t => {
    t.plan(2)
    class ChangeBehavior { }
    class NewBehavior { }
    const system = new ActorSystem("testSystem")

    class BahaviorActor extends AbstractActor {
        public createReceive() {
            return this.receiveBuilder()
                .match(ChangeBehavior, () => {
                    t.pass()
                    const newBehavior = this.receiveBuilder().match(NewBehavior, () => t.pass()).build()
                    this.context.become(newBehavior)
                })
                .build()
        }
    }

    const behaviorActor = system.actorOf(new BahaviorActor)
    behaviorActor.tell(new ChangeBehavior)
    behaviorActor.tell(new ChangeBehavior)
    behaviorActor.tell(new NewBehavior)
    behaviorActor.tell(new ChangeBehavior)

    system.terminal()
})