src[0] = 0x20; // First byte

        // Encode "TEST" (0x54 0x45 0x53 0x54)
        // T=0x54: upper nibble 0x5->F(0x46), lower nibble 0x4->E(0x45)
        src[1] = 'F';
        src[2] = 'E'; // T
        // E=0x45: upper nibble 0x4->E(0x45), lower nibble 0x5->F(0x46)
        src[3] = 'E';
        src[4] = 'F'; // E
        // S=0x53: upper nibble 0x5->F(0x46), lower nibble 0x3->D(0x44)

0x2d, 0x4c, 0xcd, 0x96, 0x65, 0x24, 0x86, 0xdc, 0x2, 0x1b, 0xed, 0xa6, 0x45, 0x63, 0x41, 0x6c, 0x67, 0x6f, 0x1, 0xa3, 0x45, 0x63, 0x4d, 0x4, 0xa3, 0x45, 0x63, 0x4e, 0x4, 0xa7, 0x45, 0x63, 0x42, 0x53, 0x69, 0x7a, 0x65, 0xd2, 0x0, 0x10, 0x0, 0x0, 0xa7, 0x45, 0x63, 0x49, 0x6e, 0x64, 0x65, 0x78, 0x7, 0xa6, 0x45, 0x63, 0x44, 0x69, 0x73, 0x74, 0x98, 0x7, 0x8, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xa8, 0x43, 0x53, 0x75, 0x6d, 0x41, 0x6c, 0x67, 0x6f, 0x1, 0xa8, 0x50, 0x61, 0x72, 0x74, 0x4e, 0x75, 0x6d, 0x73, 0x91, 0x1,...

        }

        @Test
        @DisplayName("Large MTU capability should be 0x4")
        void testGlobalCapLargeMtu() {
            assertEquals(0x4, Smb2Constants.SMB2_GLOBAL_CAP_LARGE_MTU, "Large MTU capability must be 0x4");
        }

        @Test
        @DisplayName("Multi-channel capability should be 0x8")
        void testGlobalCapMultiChannel() {

     * Enable other opens for write access
     */
    public static final int FILE_SHARE_WRITE = 0x2;

    /**
     * Enable other opens for delete access
     */
    public static final int FILE_SHARE_DELETE = 0x4;

    /**
     * If file exists, supersede it. Otherwise create the file
     */
    public static final int FILE_SUPERSEDE = 0x0;
    /**
     * If file exists, open it. Otherwise fail
     */

    @DisplayName("Test file share constants")
    void testFileShareConstants() {
        assertEquals(0x1, Smb2CreateRequest.FILE_SHARE_READ);
        assertEquals(0x2, Smb2CreateRequest.FILE_SHARE_WRITE);
        assertEquals(0x4, Smb2CreateRequest.FILE_SHARE_DELETE);
    }

    @Test
    @DisplayName("Test file disposition constants")
    void testFileDispositionConstants() {
        assertEquals(0x0, Smb2CreateRequest.FILE_SUPERSEDE);

      0x71,
      0x72,
      0xfc,
      0x73,
      0xfd,
      0x1ffb,
      0x7fff0,
      0x1ffc,
      0x3ffc,
      0x22,
      0x7ffd,
      0x3,
      0x23,
      0x4,
      0x24,
      0x5,
      0x25,
      0x26,
      0x27,
      0x6,
      0x74,
      0x75,
      0x28,
      0x29,
      0x2a,
      0x7,
      0x2b,
      0x76,

            assertEquals(0x2, Smb2Lock.SMB2_LOCKFLAG_EXCLUSIVE_LOCK);
        }

        @Test
        @DisplayName("Should have correct unlock flag value")
        void testUnlockFlag() {
            assertEquals(0x4, Smb2Lock.SMB2_LOCKFLAG_UNLOCK);
        }

        @Test
        @DisplayName("Should have correct fail immediately flag value")
        void testFailImmediatelyFlag() {

    void testInterfaceConstants() {
        // Verify all constants have expected values
        assertEquals((byte) 20, FileInformation.FILE_ENDOFFILE_INFO);
        assertEquals((byte) 0x4, FileInformation.FILE_BASIC_INFO);
        assertEquals((byte) 0x5, FileInformation.FILE_STANDARD_INFO);
        assertEquals((byte) 0x6, FileInformation.FILE_INTERNAL_INFO);

    // opcode
    static final int QUERY = 0;
    static final int WACK = 7;

    // rcode
    static final int FMT_ERR = 0x1;
    static final int SRV_ERR = 0x2;
    static final int IMP_ERR = 0x4;
    static final int RFS_ERR = 0x5;
    static final int ACT_ERR = 0x6;
    static final int CFT_ERR = 0x7;

    // type/class
    static final int NB_IN = 0x00200001;
    static final int NBSTAT_IN = 0x00210001;

    // opcode
    static final int QUERY = 0;
    static final int WACK = 7;

    // rcode
    static final int FMT_ERR = 0x1;
    static final int SRV_ERR = 0x2;
    static final int IMP_ERR = 0x4;
    static final int RFS_ERR = 0x5;
    static final int ACT_ERR = 0x6;
    static final int CFT_ERR = 0x7;

    // type/class
    static final int NB_IN = 0x00200001;
    static final int NBSTAT_IN = 0x00210001;