private void FinishEntitiesInitialization()
 {
     foreach (var entity in Entities)
     {
         _serverEntityManager.FinishEntityInitialization(entity);
     }
 }
        public void TestMapIdInitOrder()
        {
            // Tests that if a child initializes before its parent, MapID still gets initialized correctly.

            // Set private _parent field via reflection here.
            // This basically simulates the field getting set in ExposeData(), with way less test boilerplate.
            var field  = typeof(TransformComponent).GetField("_parent", BindingFlags.NonPublic | BindingFlags.Instance) !;
            var parent = EntityManager.CreateEntityUninitialized("mapDummy");
            var child1 = EntityManager.CreateEntityUninitialized("dummy");
            var child2 = EntityManager.CreateEntityUninitialized("dummy");

            field.SetValue(child1.Transform, parent.Uid);
            field.SetValue(child2.Transform, child1.Uid);

            EntityManager.FinishEntityInitialization(child2);
            EntityManager.FinishEntityInitialization(child1);
            EntityManager.FinishEntityInitialization(parent);

            Assert.That(child2.Transform.MapID, Is.EqualTo(new MapId(123)));
            Assert.That(child1.Transform.MapID, Is.EqualTo(new MapId(123)));
            Assert.That(parent.Transform.MapID, Is.EqualTo(new MapId(123)));
        }