if err != nil {
		t.Fatal(err)
	}
	if got.root() == nil {
		t.Log("cached folders:")
		for folder := range got.Cache {
			t.Log("folder:", folder)
		}
		t.Fatal("got nil root.")
	}

	// Test dirs
	want := []struct {
		path       string
		isNil      bool
		size, objs int
		oSizes     sizeHistogram
	}{
		{

			Optional:    true,
			Type:        "duration",
		},
		config.HelpKV{
			Key:         apiDeleteCleanupInterval,
			Description: `set to change intervals when deleted objects are permanently deleted from ".trash" folder` + defaultHelpPostfix(apiDeleteCleanupInterval),
			Optional:    true,
			Type:        "duration",
		},
		config.HelpKV{
			Key:         apiODirect,

stale_uploads_cleanup_interval  (duration)  set to change intervals when stale multipart uploads are expired (default: '6h')
delete_cleanup_interval         (duration)  set to change intervals when deleted objects are permanently deleted from ".trash" folder (default: '5m')
odirect                         (boolean)   set to enable or disable O_DIRECT for read and writes under special conditions. NOTE: do not disable O_DIRECT without prior testing (default: 'on')

	// dynamic sleeper to avoid thundering herd for trash folder expunge routine
	deleteCleanupSleeper = newDynamicSleeper(5, 25*time.Millisecond, false)

	// dynamic sleeper for multipart expiration routine
	deleteMultipartCleanupSleeper = newDynamicSleeper(5, 25*time.Millisecond, false)

  ## If the PV uses a different storage class, specify that here.
  storageClass: ""
  volumeName: ""
  accessMode: ReadWriteOnce
  size: 500Gi

  ## If subPath is set mount a sub folder of a volume instead of the root of the volume.
  ## This is especially handy for volume plugins that don't natively support sub mounting (like glusterfs).
  ##
  subPath: ""

## Storage class of PV to bind. By default it looks for standard storage class. ## If the PV uses a different storage class, specify that here. storageClass: "" VolumeName: "" accessMode: ReadWriteOnce size: 500Gi ## If subPath is set mount a sub folder of a volume instead of the root of the volume. ## This is especially handy for volume plugins that don't natively support sub mounting (like glusterfs). ## subPath: "" ## Expose the MinIO service to be accessed from outside the cluster (LoadBalancer...

## Storage class of PV to bind. By default it looks for standard storage class. ## If the PV uses a different storage class, specify that here. storageClass: "" VolumeName: "" accessMode: ReadWriteOnce size: 500Gi ## If subPath is set mount a sub folder of a volume instead of the root of the volume. ## This is especially handy for volume plugins that don't natively support sub mounting (like glusterfs). ## subPath: "" ## Expose the MinIO service to be accessed from outside the cluster (LoadBalancer...

## Storage class of PV to bind. By default it looks for standard storage class. ## If the PV uses a different storage class, specify that here. storageClass: "" VolumeName: "" accessMode: ReadWriteOnce size: 500Gi ## If subPath is set mount a sub folder of a volume instead of the root of the volume. ## This is especially handy for volume plugins that don't natively support sub mounting (like glusterfs). ## subPath: "" ## Expose the MinIO service to be accessed from outside the cluster (LoadBalancer...

## Storage class of PV to bind. By default it looks for standard storage class. ## If the PV uses a different storage class, specify that here. storageClass: "" VolumeName: "" accessMode: ReadWriteOnce size: 500Gi ## If subPath is set mount a sub folder of a volume instead of the root of the volume. ## This is especially handy for volume plugins that don't natively support sub mounting (like glusterfs). ## subPath: "" ## Expose the MinIO service to be accessed from outside the cluster (LoadBalancer...

## Storage class of PV to bind. By default it looks for standard storage class. ## If the PV uses a different storage class, specify that here. storageClass: "" VolumeName: "" accessMode: ReadWriteOnce size: 500Gi ## If subPath is set mount a sub folder of a volume instead of the root of the volume. ## This is especially handy for volume plugins that don't natively support sub mounting (like glusterfs). ## subPath: "" ## Expose the MinIO service to be accessed from outside the cluster (LoadBalancer...