/** Directory attribute */
    int ATTR_DIRECTORY = 0x10;
    /** Archive attribute */
    int ATTR_ARCHIVE = 0x20;

    // extended file attribute encoding(others same as above)
    /** Compressed file attribute */
    int ATTR_COMPRESSED = 0x800;
    /** Normal file attribute */
    int ATTR_NORMAL = 0x080;
    /** Temporary file attribute */
    int ATTR_TEMPORARY = 0x100;

    // access mask encoding

        assertEquals(0x400, Smb2ChangeNotifyRequest.FILE_NOTIFY_CHANGE_STREAM_SIZE);
        assertEquals(0x800, Smb2ChangeNotifyRequest.FILE_NOTIFY_CHANGE_STREAM_WRITE);
    }

    @Test
    @DisplayName("Should handle null file ID gracefully")
    void testNullFileId() {
        // Given
        byte[] nullFileId = new byte[16]; // All zeros

    /**
     * Lock and read operation is supported capability.
     */
    int CAP_LOCK_AND_READ = 0x0100;
    /**
     * NT find operations are supported capability.
     */
    int CAP_NT_FIND = 0x0200;
    /**
     * DFS operations are supported capability.
     */
    int CAP_DFS = 0x1000;
    /**
     * Large read operations are supported capability.
     */
    int CAP_LARGE_READX = 0x4000;

                0x02, // FILE_ATTRIBUTE_HIDDEN
                0x04, // FILE_ATTRIBUTE_SYSTEM
                0x10, // FILE_ATTRIBUTE_DIRECTORY
                0x20, // FILE_ATTRIBUTE_ARCHIVE
                0x80, // FILE_ATTRIBUTE_NORMAL
                0x100, // FILE_ATTRIBUTE_TEMPORARY
                0x21, // Combination: ARCHIVE | READONLY
                0x06 // Combination: HIDDEN | SYSTEM
        };

    }

    /**
     * DFS volume flavor indicating standalone DFS
     */
    public static final int DFS_VOLUME_FLAVOR_STANDALONE = 0x100;
    /**
     * DFS volume flavor indicating Active Directory blob storage
     */
    public static final int DFS_VOLUME_FLAVOR_AD_BLOB = 0x200;
    /**
     * DFS storage state indicating offline status
     */
    public static final int DFS_STORAGE_STATE_OFFLINE = 0x0001;
    /**

            buffer[16 + i] = expectedData[i];
        }

        // Set header values
        SMBUtil.writeInt4(0x100, buffer, 0);
        SMBUtil.writeInt4(0x200, buffer, 4);
        SMBUtil.writeInt4(0x300, buffer, 8);
        SMBUtil.writeInt4(0x400, buffer, 12);

        // Decode
        response.decode(buffer, 0, 32);

        // Verify data integrity

        assertEquals(0x10, Smb2CreateRequest.FILE_SYNCHRONOUS_IO_ALERT);
        assertEquals(0x20, Smb2CreateRequest.FILE_SYNCHRONOUS_IO_NONALERT);
        assertEquals(0x40, Smb2CreateRequest.FILE_NON_DIRECTORY_FILE);
        assertEquals(0x100, Smb2CreateRequest.FILE_COMPLETE_IF_OPLOCKED);
        assertEquals(0x200, Smb2CreateRequest.FILE_NO_EA_KNOWLEDGE);
        assertEquals(0x400, Smb2CreateRequest.FILE_OPEN_REMOTE_INSTANCE);

      super(alphabet, null);
      checkArgument(alphabet.chars.length == 16);
      for (int i = 0; i < 256; ++i) {
        encoding[i] = alphabet.encode(i >>> 4);
        encoding[i | 0x100] = alphabet.encode(i & 0xF);
      }
    }

    @Override
    void encodeTo(Appendable target, byte[] bytes, int off, int len) throws IOException {
      checkNotNull(target);

     */
    public static final int FILE_COMPLETE_IF_OPLOCKED = 0x100;
    /**
     * The client does not understand extended attributes
     */
    public static final int FILE_NO_EA_KNOWLEDGE = 0x200;
    /**
     * Open a remote instance of the file
     */
    public static final int FILE_OPEN_REMOTE_INSTANCE = 0x400;
    /**
     * Access to the file is random
     */

    }

    /**
     * DFS volume flavor indicating standalone DFS
     */
    public static final int DFS_VOLUME_FLAVOR_STANDALONE = 0x100;
    /**
     * DFS volume flavor indicating Active Directory blob storage
     */
    public static final int DFS_VOLUME_FLAVOR_AD_BLOB = 0x200;
    /**
     * DFS storage state indicating offline status
     */
    public static final int DFS_STORAGE_STATE_OFFLINE = 0x0001;
    /**