public ReactiveEntityWillBeRemovedSystem(EntityRepository repo, IReactiveSubEntityWillBeRemovedSystem subSystem)
{
_subsystem = subSystem;
_observer = new EntityWillBeRemovedEntityRepositoryObserver(repo, subSystem.GetTriggeringMatcher());
}
void when_created()
{
EntityRepository repo = null;
EntityWillBeRemovedEntityRepositoryObserver observer = null;
before = () => {
repo = new EntityRepository(CID.NumComponents);
};
it["throws when matcher has not exactely one index"] = expect <MatcherException>(() => {
new EntityWillBeRemovedEntityRepositoryObserver(repo, Matcher.AllOf(CID.ComponentA, CID.ComponentB));
});
context["when observing"] = () => {
before = () => {
observer = new EntityWillBeRemovedEntityRepositoryObserver(repo, Matcher.AllOf(CID.ComponentA));
};
it["returns collected entities"] = () => {
var e = repo.CreateEntity();
e.AddComponentA();
e.RemoveComponentA();
var ecp = observer.collectedEntityComponentPairs;
ecp.Count.should_be(1);
var pair = ecp.First();
pair.entity.should_be_same(e);
pair.component.should_be_same(Component.A);
};
it["only returns matching collected entities"] = () => {
var e = repo.CreateEntity();
e.AddComponentA();
var e2 = repo.CreateEntity();
e2.AddComponentB();
e.RemoveComponentA();
e2.RemoveComponentB();
var ecp = observer.collectedEntityComponentPairs;
ecp.Count.should_be(1);
var pair = ecp.First();
pair.entity.should_be_same(e);
};
it["collects entites only once"] = () => {
var e = repo.CreateEntity();
e.AddComponentA();
e.RemoveComponentA();
e.AddComponentA();
e.RemoveComponentA();
var ecp = observer.collectedEntityComponentPairs;
ecp.Count.should_be(1);
};
it["returns empty list when no entities were collected"] = () => {
observer.collectedEntityComponentPairs.should_be_empty();
};
it["clears collected entities on deactivation"] = () => {
var e = repo.CreateEntity();
e.AddComponentA();
e.RemoveComponentA();
observer.Deactivate();
observer.collectedEntityComponentPairs.should_be_empty();
};
it["doesn't collect entities when deactivated"] = () => {
observer.Deactivate();
var e = repo.CreateEntity();
e.AddComponentA();
e.RemoveComponentA();
observer.collectedEntityComponentPairs.should_be_empty();
};
it["continues collecting when activated"] = () => {
observer.Deactivate();
var e1 = repo.CreateEntity();
e1.AddComponentA();
e1.RemoveComponentA();
observer.Activate();
var e2 = repo.CreateEntity();
e2.AddComponentA();
e2.RemoveComponentA();
var ecp = observer.collectedEntityComponentPairs;
var pair = ecp.First();
pair.entity.should_be_same(e2);
};
it["clears collected entites"] = () => {
var e = repo.CreateEntity();
e.AddComponentA();
e.RemoveComponentA();
observer.ClearCollectedEntites();
observer.collectedEntityComponentPairs.should_be_empty();
};
};
}
