public void Can_update_graph_using_built_in_tracker()
        {
            var tracker = new KeyValueEntityTracker(updateExistingEntities: true);

            KeyValueAttachTest((category, changeTracker) => changeTracker.TrackGraph(category, tracker.TrackEntity), expectModified: true);
        }
        public void Can_attach_graph_using_built_in_tracker()
        {
            var tracker = new KeyValueEntityTracker(updateExistingEntities: false);

            KeyValueAttachTest((category, changeTracker) => changeTracker.TrackGraph(category, tracker.TrackEntity));
        }