)

// TestMetricsDuGetCapacity tests that MetricsDu can read disk usage
// for path
func TestMetricsDuGetCapacity(t *testing.T) {
	tmpDir, err := utiltesting.MkTmpdir("metrics_du_test")
	if err != nil {
		t.Fatalf("Can't make a tmp dir: %v", err)
	}
	defer os.RemoveAll(tmpDir)
	metrics := NewMetricsDu(tmpDir)

	expectedEmptyDirUsage, err := volumetest.FindEmptyDirectoryUsageOnTmpfs()

	if goruntime.GOOS == "windows" {
		used, err := resource.ParseQuantity("0")
		return &used, err
	}
	tmpDir, err := utiltesting.MkTmpdir("metrics_du_test")
	if err != nil {
		return nil, err
	}
	defer os.RemoveAll(tmpDir)
	out, err := exec.New().Command("nice", "-n", "19", "du", "-x", "-s", "-B", "1", tmpDir).CombinedOutput()
	if err != nil {