t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgActiveWorkerStat(b *testing.B) {
	v := ActiveWorkerStat{}
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.MarshalMsg(nil)
	}
}

func BenchmarkAppendMsgActiveWorkerStat(b *testing.B) {
	v := ActiveWorkerStat{}
	bts := make([]byte, 0, v.Msgsize())

// returns the slice of errors from all function calls.
func (g *NotificationGroup) Wait() []NotificationPeerErr {
	g.workers.Wait()
	return g.errs
}

// Go calls the given function in a new goroutine.
//
// The first call to return a non-nil error will be
// collected in errs slice and returned by Wait().
func (g *NotificationGroup) Go(ctx context.Context, f func() error, index int, addr xnet.Host) {

)

var callhomeLeaderLockTimeout = newDynamicTimeout(30*time.Second, 10*time.Second)

// initCallhome will start the callhome task in the background.
func initCallhome(ctx context.Context, objAPI ObjectLayer) {
	if !globalCallhomeConfig.Enabled() {
		return
	}

	go func() {
		r := rand.New(rand.NewSource(time.Now().UnixNano()))
		// Leader node (that successfully acquires the lock inside runCallhome)

	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgBucketReplicationResyncStatus(b *testing.B) {
	v := BucketReplicationResyncStatus{}
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.MarshalMsg(nil)
	}
}

func BenchmarkAppendMsgBucketReplicationResyncStatus(b *testing.B) {
	v := BucketReplicationResyncStatus{}

	// can be registered by RegisterError
	errorFmtFunc = func(introMsg string, err error, jsonFlag bool) string {
		return fmt.Sprintf("msg: %s\n err:%s", introMsg, err)
	}
)

// EnableQuiet - turns quiet option on.
func EnableQuiet() {
	color.TurnOff() // no colored outputs necessary in quiet mode.
	quietFlag = true
}

// EnableJSON - outputs logs in json format.
func EnableJSON() {

	r  io.Reader
	mu sync.Mutex
}

func (d *disconnectReader) Read(p []byte) (n int, err error) {
	d.mu.Lock()
	defer d.mu.Unlock()
	if d.r != nil {
		return d.r.Read(p)
	}
	return 0, errors.New("reader closed")
}

func (d *disconnectReader) Close() error {
	d.mu.Lock()
	d.r = nil
	d.mu.Unlock()
	return nil
}

pkg bytes, func Index([]uint8, []uint8) int
pkg bytes, func IndexAny([]uint8, string) int
pkg bytes, func IndexByte([]uint8, uint8) int
pkg bytes, func IndexFunc([]uint8, func(int32) bool) int
pkg bytes, func IndexRune([]uint8, int32) int
pkg bytes, func Join([][]uint8, []uint8) []uint8
pkg bytes, func LastIndex([]uint8, []uint8) int
pkg bytes, func LastIndexAny([]uint8, string) int
pkg bytes, func LastIndexFunc([]uint8, func(int32) bool) int

	b.Run(" 000000|X00000 ", func(b *testing.B) { benchmarkErasureEncode(6, 6, 0, 1, size, b) })
	b.Run(" X00000|000000 ", func(b *testing.B) { benchmarkErasureEncode(6, 6, 1, 0, size, b) })
	b.Run(" 000000|XXXXX0 ", func(b *testing.B) { benchmarkErasureEncode(6, 6, 0, 5, size, b) })
	b.Run(" XXXXX0|000000 ", func(b *testing.B) { benchmarkErasureEncode(6, 6, 5, 0, size, b) })
}

pkg regexp/syntax, method (Op) String() string
pkg runtime/trace, func IsEnabled() bool
pkg runtime/trace, func Log(context.Context, string, string)
pkg runtime/trace, func Logf(context.Context, string, string, ...interface{})
pkg runtime/trace, func NewTask(context.Context, string) (context.Context, *Task)
pkg runtime/trace, func StartRegion(context.Context, string) *Region
pkg runtime/trace, func WithRegion(context.Context, string, func())

}

// failOnceWriter fails exactly once and then always reports success.
type failOnceWriter bool

func (w *failOnceWriter) Write(b []byte) (int, error) {
	if !*w {
		return 0, io.ErrShortWrite
	}
	*w = true
	return len(b), nil
}

func TestWriterErrors(t *testing.T) {
	t.Run("HeaderOnly", func(t *testing.T) {
		tw := NewWriter(new(bytes.Buffer))
		hdr := &Header{Name: "dir/", Typeflag: TypeDir}