volumetest "k8s.io/kubernetes/pkg/volume/testing"
)

func TestGetMetricsStatFS(t *testing.T) {
	metrics := NewMetricsStatFS("")
	actual, err := metrics.GetMetrics()
	expected := &Metrics{}
	if !volumetest.MetricsEqualIgnoreTimestamp(actual, expected) {
		t.Errorf("Expected empty Metrics from uninitialized MetricsStatFS, actual %v", *actual)
	}
	if err == nil {

	// TODO: Enable this on Windows once support VolumeMode=Block is added.
	metrics := NewMetricsBlock("")
	actual, err := metrics.GetMetrics()
	expected := &Metrics{}
	if !volumetest.MetricsEqualIgnoreTimestamp(actual, expected) {
		t.Errorf("Expected empty Metrics from uninitialized MetricsBlock, actual %v", *actual)
	}
	if err == nil {

// returns an error
func TestMetricsDuRequirePath(t *testing.T) {
	metrics := NewMetricsDu("")
	actual, err := metrics.GetMetrics()
	expected := &Metrics{}
	if !volumetest.MetricsEqualIgnoreTimestamp(actual, expected) {
		t.Errorf("Expected empty Metrics from uninitialized MetricsDu, actual %v", *actual)
	}
	if err == nil {
		t.Errorf("Expected error when calling GetMetrics on uninitialized MetricsDu, actual nil")

				Requests: v1.ResourceList{
					v1.ResourceName(v1.ResourceStorage): resource.MustParse(capacity),
				},
			},
		},
	}
	return &claim
}

func MetricsEqualIgnoreTimestamp(a *volume.Metrics, b *volume.Metrics) bool {
	available := a.Available == b.Available
	capacity := a.Capacity == b.Capacity
	used := a.Used == b.Used
	inodes := a.Inodes == b.Inodes