public void TestChangeType( )
        {
            // Note: refer to additional tests directly on Entity.ChangeType.

            var svc = new EntityInfoService( );

            IEntity e = null;

            try
            {
                e = Entity.Create(new EntityRef("test:person"));

                var ed = new EntityData
                {
                    Id = e.Id
                };
                ed.TypeIds.Add(new EntityRef("test:manager"));

                svc.UpdateEntityType(ed);
            }
            catch
            {
                if (e != null)
                {
                    e.Delete( );
                }
            }
        }