r, _ := newS2CompressReader(bytes.NewBuffer(data), int64(len(data)), true)
	b, err := io.ReadAll(r)
	failOnErr(err)
	failOnErr(r.Close())
	// Decompression reader.
	s2Reader := s2.NewReader(bytes.NewBuffer(b))
	// Apply the skipLen on the decompressed stream.
	failOnErr(s2Reader.Skip(skip))
	got, err := io.ReadAll(s2Reader)
	failOnErr(err)
	if !bytes.Equal(got, data[skip:]) {

	rc.(*checksumReader).hash = fakeHash32{}
	for i := 0; i < chunks; i++ {
		_, err := io.ReadFull(rc, chunk)
		if err != nil {
			t.Fatal("read:", err)
		}
	}
	if frag := int(size % chunkSize); frag > 0 {
		_, err := io.ReadFull(rc, chunk[:frag])
		if err != nil {
			t.Fatal("read:", err)
		}
	}
	gotEnd, err := io.ReadAll(rc)
	if err != nil {
		t.Fatal("read end:", err)
	}
	if !bytes.Equal(gotEnd, end) {

			t.Errorf("Test %d: MinIO %s: Expected the response status to be `%d`, but instead found `%d`", i, instanceType, testCase.expectedRespStatus, rec.Code)
		}

		// read the response body.
		actualContent, err = io.ReadAll(rec.Body)
		if err != nil {
			t.Fatalf("Test %d : MinIO %s: Failed parsing response body: <ERROR> %v", i, instanceType, err)
		}

		// Verify whether the bucket obtained object is same as the one created.

		return ht.save(ctx)
	}
	return nil
}

// loadFormatErasure - loads format.json from disk.
func loadFormatErasure(disk StorageAPI, heal bool) (format *formatErasureV3, err error) {
	data, err := disk.ReadAll(context.TODO(), minioMetaBucket, formatConfigFile)
	if err != nil {
		// 'file not found' and 'volume not found' as
		// same. 'volume not found' usually means its a fresh disk.

			t.Errorf("%s: test fs has mode %v; archive header has %v",
				name, entryInfo.Mode(), hdr.FileInfo().Mode())
		}

		if entryInfo.IsDir() {
			continue
		}

		data, err := io.ReadAll(tr)
		if err != nil {
			t.Fatal(err)
		}
		origdata := fsys[name].Data
		if string(data) != string(origdata) {
			t.Fatalf("test fs has file content %v; archive header has %v",
				data, origdata)

		if err != nil {
			return nil, err
		}
	}
	defer func() {
		if err := file.Close(); err != nil {
			log.Errorf("failed to close %s: %s", filename, err)
		}
	}()
	return io.ReadAll(file)
}

func extractZtunnelConfigDump(kubeClient kube.CLIClient, podName, podNamespace string) ([]byte, error) {
	path := "config_dump"

	rHdr, err := tr.Next()
	if err != nil {
		t.Fatalf("tr.Next: %v", err)
	}
	if !reflect.DeepEqual(rHdr, hdr) {
		t.Errorf("Header mismatch.\n got %+v\nwant %+v", rHdr, hdr)
	}
	rData, err := io.ReadAll(tr)
	if err != nil {
		t.Fatalf("Read: %v", err)
	}
	if !bytes.Equal(rData, data) {
		t.Errorf("Data mismatch.\n got %q\nwant %q", rData, data)
	}
}

type headerRoundTripTest struct {
	h  *Header

	// region is valid only for CreateBucketAction.
	var region string
	if action == policy.CreateBucketAction {
		// To extract region from XML in request body, get copy of request body.
		payload, err := io.ReadAll(io.LimitReader(r.Body, maxLocationConstraintSize))
		if err != nil {
			authZLogIf(ctx, err, logger.ErrorKind)
			return ErrMalformedXML
		}

		// Populate payload to extract location constraint.

		if err != nil {
			return nil, err
		}
	}
	defer func() {
		if err := file.Close(); err != nil {
			log.Errorf("failed to close %s: %s", filename, err)
		}
	}()
	return io.ReadAll(file)
}

func setupFileConfigdumpWriter(filename string, out io.Writer) (*configdump.ConfigWriter, error) {
	data, err := readFile(filename)
	if err != nil {
		return nil, err
	}

	if err != nil {
		t.Fatal(err)
	}
	for _, f := range z.File {
		if f.Name == file {
			rc, err := f.Open()
			if err != nil {
				t.Fatal(err)
			}
			defer rc.Close()
			b, err := io.ReadAll(rc)
			if err != nil {
				t.Fatal(err)
			}
			return b
		}
	}
	t.Fatal(file, "not found in testdata/testdata.zip")
	return nil
}

func TestReadExtended(t *testing.T) {