func TestGetPersistentVolumeClaims(t *testing.T) {

	// nil inherits statefulset labels
	pod := newPod()
	statefulSet := newStatefulSet(1)
	statefulSet.Spec.Selector.MatchLabels = nil
	claims := getPersistentVolumeClaims(statefulSet, pod)
	pvc := newPVC("datadir-foo-0")
	resultClaims := map[string]v1.PersistentVolumeClaim{"datadir": pvc}

	if !reflect.DeepEqual(claims, resultClaims) {