func (r *REST) Delete(ctx context.Context, name string, deleteValidation rest.ValidateObjectFunc, options *metav1.DeleteOptions) (runtime.Object, bool, error) {
	for _, spc := range schedulingapiv1.SystemPriorityClasses() {
		if name == spc.Name {
			return nil, false, apierrors.NewForbidden(scheduling.Resource("priorityclasses"), spc.Name, errors.New("this is a system priority class and cannot be deleted"))
		}
	}

			if err != nil {
				utilruntime.HandleError(fmt.Errorf("unable to initialize client: %v", err))
				return false, nil
			}

			for _, pc := range schedulingapiv1.SystemPriorityClasses() {
				_, err := schedClientSet.PriorityClasses().Get(context.TODO(), pc.Name, metav1.GetOptions{})
				if err != nil {
					if apierrors.IsNotFound(err) {

	"k8s.io/kubernetes/pkg/apis/core"
	"k8s.io/kubernetes/pkg/apis/scheduling"
	schedulingapiv1 "k8s.io/kubernetes/pkg/apis/scheduling/v1"
)

func TestValidatePriorityClass(t *testing.T) {
	spcs := schedulingapiv1.SystemPriorityClasses()
	successCases := map[string]scheduling.PriorityClass{
		"no description": {
			ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: ""},
			Value:      100,
		},
		"with description": {