void testSMBHeader() {
        assertNotNull(SMBUtil.SMB_HEADER);
        assertEquals(24, SMBUtil.SMB_HEADER.length);

        // Verify SMB header signature
        assertEquals((byte) 0xFF, SMBUtil.SMB_HEADER[0]);
        assertEquals((byte) 'S', SMBUtil.SMB_HEADER[1]);
        assertEquals((byte) 'M', SMBUtil.SMB_HEADER[2]);
        assertEquals((byte) 'B', SMBUtil.SMB_HEADER[3]);

        // Verify remaining bytes are zeros

        @DisplayName("Test decode basic message")
        void testDecodeBasicMessage() throws SMBProtocolDecodingException {
            byte[] buffer = new byte[1024];
            System.arraycopy(SMBUtil.SMB_HEADER, 0, buffer, 0, SMBUtil.SMB_HEADER.length);

            buffer[SmbConstants.CMD_OFFSET] = 0x25;
            SMBUtil.writeInt4(0, buffer, SmbConstants.ERROR_CODE_OFFSET);
            buffer[SmbConstants.FLAGS_OFFSET] = 0x12;

        writeInt4(t / 1000, dst, dstIndex);
    }

    /**
     * SMB1 protocol header template with magic number 0xFF 'SMB'
     */
    public static final byte[] SMB_HEADER = { (byte) 0xFF, (byte) 'S', (byte) 'M', (byte) 'B', (byte) 0x00, (byte) 0x00, (byte) 0x00,
            (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,

     * @return the number of bytes written
     */
    protected int writeHeaderWireFormat(final byte[] dst, int dstIndex) {
        System.arraycopy(SMBUtil.SMB_HEADER, 0, dst, dstIndex, SMBUtil.SMB_HEADER.length);
        dst[dstIndex + SmbConstants.CMD_OFFSET] = this.command;
        dst[dstIndex + SmbConstants.FLAGS_OFFSET] = this.flags;