t.Run("", func(t *testing.T) {
			tmpfile, err := os.CreateTemp(t.TempDir(), "testfile")
			if err != nil {
				t.Error(err)
			}
			tmpfile.WriteString(testCase.stat)
			tmpfile.Sync()
			tmpfile.Close()

			iostats, err := readDriveStats(tmpfile.Name())
			if err != nil && !testCase.expectErr {
				t.Fatalf("unexpected err; %v", err)
			}
			if testCase.expectErr && err == nil {

func OpenReader(name string) (*ReadCloser, error) {
	f, err := os.Open(name)
	if err != nil {
		return nil, err
	}
	fi, err := f.Stat()
	if err != nil {
		f.Close()
		return nil, err
	}
	r := new(ReadCloser)
	if err = r.init(f, fi.Size()); err != nil && err != ErrInsecurePath {
		f.Close()
		return nil, err
	}
	r.f = f
	return r, err
}

			z.Volume, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Volume")
				return
			}
		case "fp":
			z.FilePath, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "FilePath")
				return
			}
		case "fi":
			err = z.FI.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "FI")
				return
			}
		default:
			err = dc.Skip()

			err = z.Filter.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Filter")
				return
			}
		case "Notify":
			err = z.Notify.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Notify")
				return
			}
		case "Retry":
			err = z.Retry.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Retry")
				return
			}
		default:
			err = dc.Skip()

	// map header, size 2
	// write "Count"
	err = en.Append(0x82, 0xa5, 0x43, 0x6f, 0x75, 0x6e, 0x74)
	if err != nil {
		return
	}
	err = en.WriteInt64(z.Count)
	if err != nil {
		err = msgp.WrapError(err, "Count")
		return
	}
	// write "Bytes"
	err = en.Append(0xa5, 0x42, 0x79, 0x74, 0x65, 0x73)
	if err != nil {
		return
	}
	err = en.WriteInt64(z.Bytes)
	if err != nil {

		// Initialize erasure coding
		erasure, err = NewErasure(ctx, latestMeta.Erasure.DataBlocks,
			latestMeta.Erasure.ParityBlocks, latestMeta.Erasure.BlockSize)
		if err != nil {
			return result, err
		}
	}

	result.ObjectSize, err = latestMeta.ToObjectInfo(bucket, object, true).GetActualSize()
	if err != nil {
		return result, err
	}

	// Loop to find number of disks with valid data, per-drive

	// array header, size 7
	err = en.Append(0x97)
	if err != nil {
		return
	}
	err = en.WriteUint64(z.MuxID)
	if err != nil {
		err = msgp.WrapError(err, "MuxID")
		return
	}
	err = en.WriteUint32(z.Seq)
	if err != nil {
		err = msgp.WrapError(err, "Seq")
		return
	}
	err = en.WriteUint32(z.DeadlineMS)
	if err != nil {
		err = msgp.WrapError(err, "DeadlineMS")

	}
	cfg.MaxWait, err = time.ParseDuration(maxWait)
	if err != nil {
		return err
	}
	cycle := env.Get(EnvCycle, kvs.GetWithDefault(Cycle, DefaultKVS))
	if cycle == "" {
		cycle = "1m"
	}
	cfg.Cycle, err = time.ParseDuration(cycle)
	if err != nil {
		return err
	}
	return nil

			z.StartTime, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "StartTime")
				return
			}
		case "stopTs":
			z.EndTime, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "EndTime")
				return
			}
		case "status":
			{
				var zb0002 uint8
				zb0002, err = dc.ReadUint8()
				if err != nil {
					err = msgp.WrapError(err, "Status")
					return
				}

	case "RSA":
		if key.N == "" || key.E == "" {
			return nil, errMalformedJWKRSAKey
		}

		// decode exponent
		ebuf, err := base64.RawURLEncoding.DecodeString(key.E)
		if err != nil {
			return nil, errMalformedJWKRSAKey
		}

		nbuf, err := base64.RawURLEncoding.DecodeString(key.N)
		if err != nil {
			return nil, errMalformedJWKRSAKey
		}

		var n, e big.Int
		n.SetBytes(nbuf)
		e.SetBytes(ebuf)