// Parameter source for toString() hex rendering cases
    static Stream<Arguments> hexCases() {
        return Stream.of(Arguments.of(new byte[] {}, ""), Arguments.of(new byte[] { (byte) 0x00 }, "00"),
                Arguments.of(new byte[] { (byte) 0x0F }, "0f"), Arguments.of(new byte[] { (byte) 0x10 }, "10"),
                Arguments.of(new byte[] { (byte) 0xAB }, "ab"),

            assertEquals((byte) 0xCC, uuid.node[2]);
            assertEquals((byte) 0xDD, uuid.node[3]);
            assertEquals((byte) 0xEE, uuid.node[4]);
            assertEquals((byte) 0x00, uuid.node[5]); // Missing data defaults to 0
        }

        @Test
        @DisplayName("Constructor with empty node array in rpc.uuid_t should handle gracefully")
        void testConstructorWithEmptyNode() {

    }

    @Test
    @DisplayName("Test setCommand with various SMB command codes")
    void testSetCommandWithVariousCodes() {
        // Test common SMB command codes
        int[] commandCodes = { 0x00, 0x72, 0x73, 0x74, 0x75, 0xFF };

        for (int command : commandCodes) {
            doNothing().when(messageBlock).setCommand(command);
            when(messageBlock.getCommand()).thenReturn(command);

 *
 * @author Alex Matevossian
 * @author David Beaumont
 * @since 15.0
 */
@GwtCompatible
public class XmlEscapers {
  private XmlEscapers() {}

  private static final char MIN_ASCII_CONTROL_CHAR = 0x00;
  private static final char MAX_ASCII_CONTROL_CHAR = 0x1F;

  // For each xxxEscaper() method, please add links to external reference pages
  // that are considered authoritative for the behavior of that escaper.

  /**

        }

        @Test
        @DisplayName("Directory leasing capability should be 0x20")
        void testGlobalCapDirectoryLeasing() {
            assertEquals(0x20, Smb2Constants.SMB2_GLOBAL_CAP_DIRECTORY_LEASING, "Directory leasing capability must be 0x20");
        }

        @Test
        @DisplayName("Encryption capability should be 0x40")
        void testGlobalCapEncryption() {

        byte[] server = hex("0102030405060708");
        byte[] client = hex("DEADBEEFCAFEBABE");

        // Act
        byte[] a = NtlmUtil.getNTLM2Response(pwdHash, server, client);
        server[7] ^= 0x01; // mutate
        byte[] b = NtlmUtil.getNTLM2Response(pwdHash, server, client);

        // Assert
        assertEquals(24, a.length);

        assertTrue(n > 0);
        // Common AndX header: command at +1, reserved at +2, offset at +3/+4
        assertEquals((byte) 0xFF, buf[1], "AndX command should be 0xFF when no chaining");
        assertEquals((byte) 0x00, buf[2], "Reserved byte must be 0");
        assertEquals((byte) 0xDE, buf[3], "Sentinel low offset when no chaining");
        assertEquals((byte) 0xDE, buf[4], "Sentinel high offset when no chaining");

            /* 01234567
             * 00SSFSMB
             * 0 - 0's
             * S - size of payload
             * FSMB - 0xFF SMB magic #
             */

            if (sbuf[0] == (byte) 0x00 && sbuf[1] == (byte) 0x00 && sbuf[4] == (byte) 0xFF && sbuf[5] == (byte) 'S' && sbuf[6] == (byte) 'M'
                    && sbuf[7] == (byte) 'B') {
                break; /* all good */
            }
            /* out of phase maybe? */

        assertTrue(request instanceof jcifs.internal.smb2.RequestWithFileId);

        // Test interface method
        byte[] newFileId = new byte[16];
        Arrays.fill(newFileId, (byte) 0x42);

        ((jcifs.internal.smb2.RequestWithFileId) request).setFileId(newFileId);

        // Verify it was set correctly by writing to wire format
        byte[] buffer = new byte[256];

        // Random but realistic GUID
        byte[] testGuid = { (byte) 0x01, (byte) 0x23, (byte) 0x45, (byte) 0x67, (byte) 0x89, (byte) 0xAB, (byte) 0xCD, (byte) 0xEF,
                (byte) 0xFE, (byte) 0xDC, (byte) 0xBA, (byte) 0x98, (byte) 0x76, (byte) 0x54, (byte) 0x32, (byte) 0x10 };

        // Security mode with signing required