}
		return nil
	}
}

// MetricsGroup - represents a group of metrics. It includes a `MetricsLoaderFn`
// function that provides a way to load the metrics from the system. The metrics
// are cached and refreshed after a given timeout.
//
// For metrics with a `bucket` dimension, a list of buckets argument is required
// to collect the metrics.
//
// It implements the prometheus.Collector interface for metric groups without a

kind: Deployment
metadata:
  name: metrics-server-v0.7.1
  namespace: kube-system
  labels:
    k8s-app: metrics-server
    addonmanager.kubernetes.io/mode: Reconcile
    version: v0.7.1
spec:
  selector:
    matchLabels:
      k8s-app: metrics-server
      version: v0.7.1
  template:
    metadata:
      name: metrics-server
      labels:
        k8s-app: metrics-server
        version: v0.7.1
    spec:

apiVersion: release-notes/v2
kind: bug-fix
area: telemetry
issue: [46977]
releaseNotes:
  - |

)

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 {
		t.Errorf("Expected error when calling GetMetrics on uninitialized MetricsStatFS, actual nil")
	}

	// Queued operations
	Queued InQueueMetric `json:"queued"`
	// Proxy stats
	Proxied ProxyMetric `json:"proxied"`
	// replication metrics summary for each site replication peer
	Metrics map[string]SRMetric `json:"replMetrics"`
	// uptime of node being queried for site replication metrics
	Uptime int64 `json:"uptime"`

	// 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 {
		t.Errorf("Expected error when calling GetMetrics on uninitialized MetricsBlock, actual nil")
	}

	return &metricsDu{path}
}

// GetMetrics calculates the volume usage and device free space by executing "du"
// and gathering filesystem info for the Volume path.
// See MetricsProvider.GetMetrics
func (md *metricsDu) GetMetrics() (*Metrics, error) {
	metrics := &Metrics{Time: metav1.Now()}
	if md.path == "" {
		return metrics, NewNoPathDefinedError()
	}

	err := md.getDiskUsage(metrics)
	if err != nil {
		return metrics, err

				if metrics.Inodes.Cmp(*inodes) != 0 {
					t.Fatalf("for %s: error: expected :%v , got: %v", tc.name, *inodes, *(metrics.Inodes))
				}
				if metrics.InodesUsed.Cmp(*usedInodes) != 0 {
					t.Fatalf("for %s: error: expected :%v , got: %v", tc.name, *usedInodes, *(metrics.InodesUsed))
				}
			}
		}
	}
}

// test GetMetrics with a volume that does not support stats
func TestGetMetricsDriverNotSupportStats(t *testing.T) {

func (m *MetricValues) setDriveAPIMetrics(disk madmin.Disk, labels []string) {
	if disk.Metrics == nil {
		return
	}

	m.Set(driveTimeoutErrorsTotal, float64(disk.Metrics.TotalErrorsTimeout), labels...)
	m.Set(driveIOErrorsTotal, float64(disk.Metrics.TotalErrorsAvailability-disk.Metrics.TotalErrorsTimeout), labels...)
	m.Set(driveAvailabilityErrorsTotal, float64(disk.Metrics.TotalErrorsAvailability), labels...)

// returns an error
func TestMetricsDuRequireRealDirectory(t *testing.T) {
	metrics := NewMetricsDu("/not/a/real/directory")
	actual, err := metrics.GetMetrics()
	expected := &Metrics{}
	if !volumetest.MetricsEqualIgnoreTimestamp(actual, expected) {
		t.Errorf("Expected empty Metrics from incorrectly initialized MetricsDu, actual %v", *actual)
	}
	if err == nil {