allErrs = append(allErrs, field.Forbidden(field.NewPath("provisioner"), "updates to provisioner are forbidden."))
	}

	if *storageClass.ReclaimPolicy != *oldStorageClass.ReclaimPolicy {
		allErrs = append(allErrs, field.Forbidden(field.NewPath("reclaimPolicy"), "updates to reclaimPolicy are forbidden."))
	}

		Parameters:        class1Parameters,
		ReclaimPolicy:     &deleteReclaimPolicy,
		VolumeBindingMode: &modeImmediate,
	},
	{
		TypeMeta: metav1.TypeMeta{
			Kind: "StorageClass",
		},
		ObjectMeta: metav1.ObjectMeta{
			Name: "silver",
		},
		Provisioner:       mockPluginName,
		Parameters:        class2Parameters,
		ReclaimPolicy:     &deleteReclaimPolicy,
		VolumeBindingMode: &modeImmediate,
	},

// The in-tree PV deletion protection finalizer is only added if the reclaimPolicy associated with the PV is `Delete`.
// The in-tree PV deletion protection finalizer is removed if the reclaimPolicy associated with the PV is `Retain` or
// `Recycle`, removing the finalizer is necessary to reflect the recalimPolicy updates on the PV.

			expVolumeFinalizers: nil,
			expModified:         false,
		},
		{
			// When ReclaimPolicy is Retain ensure that in-tree pv deletion protection finalizer is not added.
			name:                "13-12 migration is disabled, volume has no finalizers, reclaimPolicy is Retain",

	// reclaimPolicy controls the reclaimPolicy for dynamically provisioned PersistentVolumes of this storage class.
	// Defaults to Delete.
	// +optional
	ReclaimPolicy *v1.PersistentVolumeReclaimPolicy `json:"reclaimPolicy,omitempty" protobuf:"bytes,4,opt,name=reclaimPolicy,casttype=k8s.io/api/core/v1.PersistentVolumeReclaimPolicy"`

  // create volumes of this storage class.
  // +optional
  map<string, string> parameters = 3;

  // reclaimPolicy controls the reclaimPolicy for dynamically provisioned PersistentVolumes of this storage class.
  // Defaults to Delete.
  // +optional
  optional string reclaimPolicy = 4;

  // mountOptions controls the mountOptions for dynamically provisioned PersistentVolumes of this storage class.

  // create volumes of this storage class.
  // +optional
  map<string, string> parameters = 3;

  // reclaimPolicy controls the reclaimPolicy for dynamically provisioned PersistentVolumes of this storage class.
  // Defaults to Delete.
  // +optional
  optional string reclaimPolicy = 4;

  // mountOptions controls the mountOptions for dynamically provisioned PersistentVolumes of this storage class.

  // create volumes of this storage class.
  // +optional
  map<string, string> parameters = 3;

  // reclaimPolicy controls the reclaimPolicy for dynamically provisioned PersistentVolumes of this storage class.
  // Defaults to Delete.
  // +optional
  optional string reclaimPolicy = 4;

  // mountOptions controls the mountOptions for dynamically provisioned PersistentVolumes of this storage class.

  // create volumes of this storage class.
  // +optional
  map<string, string> parameters = 3;

  // reclaimPolicy controls the reclaimPolicy for dynamically provisioned PersistentVolumes of this storage class.
  // Defaults to Delete.
  // +optional
  optional string reclaimPolicy = 4;

  // mountOptions controls the mountOptions for dynamically provisioned PersistentVolumes of this storage class.