w := NewWriter(buf)

	for _, wt := range writeTests {
		testCreate(t, w, &wt)
	}

	if err := w.Close(); err != nil {
		t.Fatal(err)
	}

	// read it back
	r, err := NewReader(bytes.NewReader(buf.Bytes()), int64(buf.Len()))
	if err != nil {
		t.Fatal(err)
	}
	for i, wt := range writeTests {
		testReadFile(t, r.File[i], &wt)
	}
}

	bf := bufio.NewReader(r)
	switch f := detect(bf); f {
	case formatGzip:
		gz, err := gzip.NewReader(bf)
		if err != nil {
			return err
		}
		defer gz.Close()
		r = gz
	case formatS2:
		r = s2.NewReader(bf)
	case formatZstd:
		// Limit to 16 MiB per stream.
		dec, err := zstd.NewReader(bf, zstd.WithDecoderMaxWindow(16<<20))
		if err != nil {

		}
	}
	return string(b[0:nb])
}

func TestReaderSimple(t *testing.T) {
	data := "hello world"
	b := NewReader(strings.NewReader(data))
	if s := readBytes(b); s != "hello world" {
		t.Errorf("simple hello world test failed: got %q", s)
	}

	b = NewReader(newRot13Reader(strings.NewReader(data)))
	if s := readBytes(b); s != "uryyb jbeyq" {
		t.Errorf("rot13 hello world test failed: got %q", s)
	}
}

		chunkSignature []byte
	}
	// List of readers used.
	readers := []io.Reader{
		// Test - 1
		bytes.NewReader([]byte("1000;chunk-signature=111123333333333333334444211\r\n")),
		// Test - 2
		bytes.NewReader([]byte("1000;")),
		// Test - 3
		bytes.NewReader(fmt.Appendf(nil, "%4097d", 1)),
		// Test - 4
		bytes.NewReader([]byte("1000;chunk-signature=111123333333333333334444211\r\n")),
	}
	testCases := []testCase{

	// zeroes
	_, err := NewReader(bytes.NewReader(b), size)
	if err != ErrFormat {
		t.Errorf("zeroes: error=%v, want %v", err, ErrFormat)
	}

	// repeated directoryEndSignatures
	sig := make([]byte, 4)
	binary.LittleEndian.PutUint32(sig, directoryEndSignature)
	for i := 0; i < size-4; i += 4 {
		copy(b[i:i+4], sig)
	}
	_, err = NewReader(bytes.NewReader(b), size)
	if err != ErrFormat {

	if err != nil {
		t.Fatal(err)
	}
	// PutObjectPart should succeed even if part already exists. ref: https://github.com/minio/minio/issues/1930
	_, err = objLayer.PutObjectPart(ctx, "bucket1", "mpartObj1", res.UploadID, 1, mustGetPutObjReader(t, bytes.NewReader(fiveMBBytes), 5*humanize.MiByte, md5Hex, ""), opts)
	if err != nil {

		return
	}
	data, err := io.ReadAll(r.Body)
	if err != nil {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
		return
	}
	reader := bytes.NewReader(data)
	zr, err := zip.NewReader(reader, int64(len(data)))
	if err != nil {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
		return
	}
	rpt := importMetaReport{
		madmin.BucketMetaImportErrs{

			var expectedPolicy *policy.BucketPolicy
			expectedPolicy, err = policy.ParseBucketPolicyConfig(strings.NewReader(expectedBucketPolicyStr), testCase.bucketName)
			if err != nil {
				t.Fatalf("unexpected error. %v", err)
			}
			var gotPolicy *policy.BucketPolicy
			gotPolicy, err = policy.ParseBucketPolicyConfig(bytes.NewReader(bucketPolicyReadBuf), testCase.bucketName)
			if err != nil {
				t.Fatalf("unexpected error. %v", err)

		}
	}
	return true, ""
}

func TestCmpReaders(t *testing.T) {
	{
		r1 := bytes.NewReader([]byte("abc"))
		r2 := bytes.NewReader([]byte("abc"))
		ok, msg := cmpReaders(r1, r2)
		if !ok || msg != "" {
			t.Fatalf("unexpected")
		}
	}

	{
		r1 := bytes.NewReader([]byte("abc"))
		r2 := bytes.NewReader([]byte("abcd"))
		ok, _ := cmpReaders(r1, r2)
		if ok {
			t.Fatalf("unexpected")
		}
	}

	if err != nil {
		// Leaves the server goroutine hanging. Oh well.
		t.Fatal(err)
	}

	defer wg.Wait()
	defer clientConn.Close()

	const data = "data"
	r := bufio.NewReader(strings.NewReader(data))
	n, err := io.Copy(clientConn, r)
	if err != nil {
		t.Fatal(err)
	}

	if n != int64(len(data)) {
		t.Errorf("io.Copy returned %d, want %d", n, len(data))
	}

	clientConn.Close()