/**
     * Convert hexadecimal characters to binary integer
     *
     * @param arr the character array containing hex digits
     * @param offset the starting position in the array
     * @param length the number of hex digits to convert
     * @return the integer value of the hex digits
     */
    public static int hex_to_bin(final char[] arr, final int offset, final int length) {
        int value = 0;

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"bytes"
	"context"
	"crypto/sha256"
	"encoding/hex"
	"io"
	"net/http"
	"net/http/httptest"
	"net/url"
	"strconv"
	"testing"
	"time"

	"github.com/minio/minio-go/v7/pkg/signer"
	"github.com/minio/minio/internal/auth"

    }

    // Verifies that toString() formats bytes as lower-case hex with zero-padding
    @ParameterizedTest(name = "toString renders hex for {0}")
    @MethodSource("hexCases")
    @DisplayName("toString() renders lower-case hex with zero-padding")
    void toString_rendersHex(byte[] input, String expected) {
        // Arrange

 */
object HpackJsonUtil {
  @Suppress("unused")
  private val MOSHI =
    Moshi
      .Builder()
      .add(
        object : Any() {
          @ToJson fun byteStringToJson(byteString: ByteString) = byteString.hex()

          @FromJson fun byteStringFromJson(json: String) = json.decodeHex()
        },
      ).add(KotlinJsonAdapterFactory())
      .build()
  private val STORY_JSON_ADAPTER = MOSHI.adapter(Story::class.java)

		Hash:      hex.EncodeToString(c.Hash),
	}
	return json.Marshal(info)
}

// UnmarshalJSON - custom checksum info unmarshaller
func (c *ChecksumInfo) UnmarshalJSON(data []byte) error {
	var info checksumInfoJSON
	json := jsoniter.ConfigCompatibleWithStandardLibrary
	if err := json.Unmarshal(data, &info); err != nil {
		return err
	}
	sum, err := hex.DecodeString(info.Hash)
	if err != nil {

        assertTrue(s.contains(",resumeKey=0x0304"), "toString should include lower 16-bit resumeKey hex");
        assertTrue(s.contains(",flags=0x00"), "toString should include flags in hex");
        assertTrue(s.endsWith("]"), "toString should end with closing bracket");
    }

    }.also { expected ->
      assertThat(expected.message).isEqualTo(
        "Payload size must be less than or equal to 125",
      )
    }
  }

  private fun assertData(hex: String) {
    assertData(hex.decodeHex())
  }

  private fun assertData(expected: ByteString) {
    val actual = data.readByteString(Math.min(expected.size.toLong(), data.size))
    assertThat(actual).isEqualTo(expected)
  }

        assertNull(parsed.getMechanismListMIC(), "MIC should be null when absent");
    }

    @Test
    @DisplayName("toString includes flags, mechanisms and MIC in hex")
    void testToStringIncludesFields() {
        ASN1ObjectIdentifier[] mechs = new ASN1ObjectIdentifier[] { OID_KRB_LEGACY };
        int flags = NegTokenInit.REPLAY_DETECTION | NegTokenInit.SEQUENCE_CHECKING;

	blockSizeV2 = 1 * humanize.MiByte

	// Buckets meta prefix.
	bucketMetaPrefix = "buckets"

	// Deleted Buckets prefix.
	deletedBucketsPrefix = ".deleted"

	// ETag (hex encoded md5sum) of empty string.
	emptyETag = "d41d8cd98f00b204e9800998ecf8427e"
)

// Global object layer mutex, used for safely updating object layer.
var globalObjLayerMutex sync.RWMutex

}

// DecryptETag decrypts the ETag that is part of given object
// with the given object encryption key.
//
// However, DecryptETag does not try to decrypt the ETag if
// it consists of a 128 bit hex value (32 hex chars) and exactly
// one '-' followed by a 32-bit number.
// This special case addresses randomly-generated ETags generated
// by the MinIO server when running in non-compat mode. These
// random ETags are not encrypt.