statsCalculator.calcAndStoreStats()
	vs, _ := statsCalculator.GetLatest()

	assert.Len(t, append(vs.EphemeralVolumes, vs.PersistentVolumes...), 4)
	// Verify 'vol0' doesn't have a PVC reference
	assert.Contains(t, append(vs.EphemeralVolumes, vs.PersistentVolumes...), kubestats.VolumeStats{
		Name:              vol0,
		FsStats:           expectedFSStats(),

}

// PodVolumeStats encapsulates the VolumeStats for a pod.
// It consists of two lists, for local ephemeral volumes, and for persistent volumes respectively.
type PodVolumeStats struct {
	EphemeralVolumes  []stats.VolumeStats
	PersistentVolumes []stats.VolumeStats
}

// newVolumeStatCalculator creates a new VolumeStatCalculator