"github.com/minio/minio/internal/s3select/sql"
)

// Reader implements reading records from parquet input.
type Reader struct {
	io.Closer
	r *parquetgo.FileReader
}

// NewParquetReader creates a Reader2 from a io.ReadSeekCloser.
func NewParquetReader(rsc io.ReadSeekCloser, _ *ReaderArgs) (r *Reader, err error) {
	fr, err := parquetgo.NewFileReader(rsc)
	if err != nil {

	}
}

var UnreadRuneErrorTests = []struct {
	name string
	f    func(*Reader)
}{
	{"Read", func(r *Reader) { r.Read([]byte{0}) }},
	{"ReadByte", func(r *Reader) { r.ReadByte() }},
	{"UnreadRune", func(r *Reader) { r.UnreadRune() }},
	{"Seek", func(r *Reader) { r.Seek(0, io.SeekCurrent) }},
	{"WriteTo", func(r *Reader) { r.WriteTo(&Buffer{}) }},
}

func TestUnreadRuneError(t *testing.T) {

// NewReaderSize returns a new [Reader] whose buffer has at least the specified
// size. If the argument io.Reader is already a [Reader] with large enough
// size, it returns the underlying [Reader].
func NewReaderSize(rd io.Reader, size int) *Reader {
	// Is it already a Reader?
	b, ok := rd.(*Reader)
	if ok && len(b.buf) >= size {
		return b
	}
	r := new(Reader)
	r.reset(make([]byte, max(size, minReadBufferSize)), rd)

				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "Compress")
					return
				}
				z.Compress = nil
			} else {
				if z.Compress == nil {
					z.Compress = new(bool)
				}
				*z.Compress, err = dc.ReadBool()
				if err != nil {
					err = msgp.WrapError(err, "Compress")
					return
				}
			}
		case "SmallerThan":
			if dc.IsNil() {
				err = dc.ReadNil()

			fmt.Println(args...)
		}
	}
	// Inject random reader/writer sleeps.
	const maxSleep = int(1 * time.Millisecond)
	doSleep := !testing.Short()
	rb := New(4 << 10).SetBlocking(true)

	// Reader
	var readErr error
	var wg sync.WaitGroup
	wg.Add(1)
	go func() {
		readRng := rand.New(rand.NewSource(1))
		defer wg.Done()
		defer rb.CloseWithError(readErr)
		buf := make([]byte, 1024)
		for {
			// Read

				return
			}
		case "m":
			z.ScanMode, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "ScanMode")
				return
			}
		case "c":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "Cache")
					return
				}
				z.Cache = nil
			} else {
				if z.Cache == nil {
					z.Cache = new(dataUsageCache)
				}

		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "V2Obj":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "ObjectV2")
					return
				}
				z.ObjectV2 = nil
			} else {
				if z.ObjectV2 == nil {
					z.ObjectV2 = new(struct {

pkg testing/iotest, func DataErrReader(io.Reader) io.Reader
pkg testing/iotest, func HalfReader(io.Reader) io.Reader
pkg testing/iotest, func NewReadLogger(string, io.Reader) io.Reader
pkg testing/iotest, func NewWriteLogger(string, io.Writer) io.Writer
pkg testing/iotest, func OneByteReader(io.Reader) io.Reader
pkg testing/iotest, func TimeoutReader(io.Reader) io.Reader

func (z *rstats) DecodeMsg(dc *msgp.Reader) (err error) {
	var zb0002 uint32
	zb0002, err = dc.ReadArrayHeader()
	if err != nil {
		err = msgp.WrapError(err)
		return
	}
	if cap((*z)) >= int(zb0002) {
		(*z) = (*z)[:zb0002]
	} else {
		(*z) = make(rstats, zb0002)
	}
	for zb0001 := range *z {
		if dc.IsNil() {
			err = dc.ReadNil()
			if err != nil {

	if err != io.EOF {
		t.Fatal(err)
	}
}

func Test_metacacheReader_readAll(t *testing.T) {
	r := loadMetacacheSample(t)
	defer r.Close()
	var readErr error
	objs := make(chan metaCacheEntry, 1)
	var wg sync.WaitGroup
	wg.Add(1)
	go func() {
		readErr = r.readAll(t.Context(), objs)
		wg.Done()
	}()
	want := loadMetacacheSampleNames
	i := 0
	for entry := range objs {
		if entry.name != want[i] {