add missing HasSynced method

Signed-off-by: Tim Ramlot <42113979+inteon@users.noreply.github.com>

pkg/controller/controllertest/util.go

@@ -54,7 +54,8 @@ type legacyResourceEventHandler interface {
 // eventHandlerWrapper wraps a ResourceEventHandler in a manner that is compatible with client-go 1.27+ and older.
 // The interface was changed in these versions.
 type eventHandlerWrapper struct {
-	handler any
+	handler   any
+	hasSynced bool
 }
 
 func (e eventHandlerWrapper) OnAdd(obj interface{}) {
@@ -81,6 +82,10 @@ func (e eventHandlerWrapper) OnDelete(obj interface{}) {
 	e.handler.(legacyResourceEventHandler).OnDelete(obj)
 }
 
+func (e eventHandlerWrapper) HasSynced() bool {
+	return e.hasSynced
+}
+
 // AddIndexers does nothing.  TODO(community): Implement this.
 func (f *FakeInformer) AddIndexers(indexers cache.Indexers) error {
 	return nil
@@ -105,7 +110,7 @@ func (f *FakeInformer) HasSynced() bool {
 func (f *FakeInformer) AddEventHandler(handler cache.ResourceEventHandler) (cache.ResourceEventHandlerRegistration, error) {
 	f.mu.Lock()
 	defer f.mu.Unlock()
-	eh := &eventHandlerWrapper{handler}
+	eh := &eventHandlerWrapper{handler, true}
 	f.handlers = append(f.handlers, eh)
 	return eh, nil
 }