}
		return fresh, nil
	})
}

// adoptOrphanRevisions adopts any orphaned ControllerRevisions matched by set's Selector.
func (ssc *StatefulSetController) adoptOrphanRevisions(ctx context.Context, set *apps.StatefulSet) error {
	revisions, err := ssc.control.ListRevisions(set)
	if err != nil {
		return err
	}

	// error is nil, the returns slice of ControllerRevisions is valid.
	ListRevisions(set *apps.StatefulSet) ([]*apps.ControllerRevision, error)
	// AdoptOrphanRevisions adopts any orphaned ControllerRevisions that match set's Selector. If all adoptions are
	// successful the returned error is nil.
	AdoptOrphanRevisions(set *apps.StatefulSet, revisions []*apps.ControllerRevision) error
}

	ssc, _, om, _ := newFakeStatefulSetController(ctx, ss1, ss1Rev1, ss1Rev2)

	om.revisionsIndexer.Add(ss1Rev1)
	om.revisionsIndexer.Add(ss1Rev2)

	err = ssc.adoptOrphanRevisions(context.TODO(), ss1)
	if err != nil {
		t.Errorf("adoptOrphanRevisions() error: %v", err)
	}

	if revisions, err := ssc.control.ListRevisions(ss1); err != nil {
		t.Errorf("ListRevisions() error: %v", err)
	} else {
		var adopted bool