oldObj: &api.PersistentVolumeClaim{
				Spec: api.PersistentVolumeClaimSpec{
					VolumeName: "volume1",
					Resources: api.VolumeResourceRequirements{
						Requests: getResourceList("1Gi"),
					},
					StorageClassName: &goldClassName,
				},
				Status: api.PersistentVolumeClaimStatus{
					Capacity: getResourceList("1Gi"),
					Phase:    api.ClaimBound,
				},
			},
			newObj: &api.PersistentVolumeClaim{

  resources:
    requests:
      storage: {{ .Values.persistence.size | quote }}
  {{- if .Values.persistence.storageClass }}
  {{- if (eq "-" .Values.persistence.storageClass) }}
  storageClassName: ""
  {{- else }}
  storageClassName: "{{ .Values.persistence.storageClass }}"
  {{- end }}
  {{- end }}
  {{- if .Values.persistence.volumeName }}
  volumeName: "{{ .Values.persistence.volumeName }}"
  {{- end }}
{{- end }}

	*v1.PersistentVolumeClaim
}

func makePVC(name string, storageClassName string) pvcBuilder {
	return pvcBuilder{PersistentVolumeClaim: &v1.PersistentVolumeClaim{
		ObjectMeta: metav1.ObjectMeta{
			Name:      name,
			Namespace: v1.NamespaceDefault,
		},
		Spec: v1.PersistentVolumeClaimSpec{
			StorageClassName: ptr.To(storageClassName),
		},
	}}
}

	VolumeName                *string                                       `json:"volumeName,omitempty"`
	StorageClassName          *string                                       `json:"storageClassName,omitempty"`
	VolumeMode                *v1.PersistentVolumeMode                      `json:"volumeMode,omitempty"`

			boundNumberByStorageClass[pv.Spec.StorageClassName]++
		} else {
			unboundNumberByStorageClass[pv.Spec.StorageClassName]++
		}
	}
	for storageClassName, number := range boundNumberByStorageClass {
		ch <- metrics.NewLazyConstMetric(
			boundPVCountDesc,
			metrics.GaugeValue,
			float64(number),
			storageClassName)
	}
	for storageClassName, number := range unboundNumberByStorageClass {

		return nil, &assumecache.WrongTypeError{TypeName: "v1.PersistentVolume", Object: obj}
	}
	return pv, nil
}

func (c *PVAssumeCache) ListPVs(storageClassName string) []*v1.PersistentVolume {
	objs := c.List(&v1.PersistentVolume{
		Spec: v1.PersistentVolumeSpec{
			StorageClassName: storageClassName,
		},
	})
	pvs := []*v1.PersistentVolume{}
	for _, obj := range objs {
		pv, ok := obj.(*v1.PersistentVolume)
		if !ok {

				pvc.Spec.StorageClassName = &classSilver
			}),
		},
		"successful-match-with-class-and-labels": {
			expectedMatch: "gce-pd-silver2",
			claim: makePVC("1G", func(pvc *v1.PersistentVolumeClaim) {
				pvc.Spec.AccessModes = []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce}
				pvc.Spec.StorageClassName = &classSilver
			}),
		},
		"successful-match-very-large": {

		},
		Spec: api.PersistentVolumeClaimSpec{
			StorageClassName: &foo,
		},
	}
	claimWithEmptyClass := &api.PersistentVolumeClaim{
		TypeMeta: metav1.TypeMeta{
			Kind: "PersistentVolumeClaim",
		},
		ObjectMeta: metav1.ObjectMeta{
			Name:      "claimWithEmptyClass",
			Namespace: "ns",
		},
		Spec: api.PersistentVolumeClaimSpec{
			StorageClassName: &empty,
		},
	}

}

// GetPersistentVolumeClass returns StorageClassName.
func GetPersistentVolumeClass(volume *core.PersistentVolume) string {
	// Use beta annotation first
	if class, found := volume.Annotations[core.BetaStorageClassAnnotation]; found {
		return class
	}

	return volume.Spec.StorageClassName
}

// GetPersistentVolumeClaimClass returns StorageClassName. If no storage class was
// requested, it returns "".

	mib := resource.MustParse("1Mi")
	c := &storage.CSIStorageCapacity{
		ObjectMeta: metav1.ObjectMeta{
			Name:            name,
			Namespace:       metav1.NamespaceDefault,
			ResourceVersion: "1",
		},
		StorageClassName: "bar",
		NodeTopology: &metav1.LabelSelector{
			MatchExpressions: []metav1.LabelSelectorRequirement{
				{
					Key:      "node",
					Operator: metav1.LabelSelectorOpIn,
					Values: []string{
						"node1",