void testCompleteEncodingStructure() {
            // Given
            long sourceOffset = 0x1234567890ABCDEFL;
            long targetOffset = 0xFEDCBA0987654321L;
            int length = 0x12345678;
            SrvCopychunk chunk = new SrvCopychunk(sourceOffset, targetOffset, length);
            byte[] buffer = new byte[EXPECTED_SIZE];

            // When
            int bytesWritten = chunk.encode(buffer, 0);

    }

    @Test
    @DisplayName("Test setFileIndex method")
    void testSetFileIndex() {
        request = new Smb2QueryDirectoryRequest(mockConfig);
        int fileIndex = 0x12345678;

        request.setFileIndex(fileIndex);

        // Verify by writing to buffer and checking the fileIndex position
        byte[] buffer = new byte[1024];

        // Prepare test data
        byte[] buffer = new byte[64];
        int bufferIndex = 10;

        // Set capabilities (4 bytes)
        int testCapabilities = 0x12345678;
        SMBUtil.writeInt4(testCapabilities, buffer, bufferIndex);

        // Set server GUID (16 bytes)
        byte[] testGuid = new byte[16];
        for (int i = 0; i < 16; i++) {

    @DisplayName("Test decode with typical values")
    void testDecodeWithTypicalValues() throws SMBProtocolDecodingException {
        // Prepare test data
        byte[] buffer = new byte[22];
        int idFileSystem = 0x12345678;
        int sectPerAlloc = 8;
        long alloc = 1000000L;
        long free = 500000L;
        int bytesPerSect = 512;

        // Encode test data
        int offset = 0;

    }

    @Test
    @DisplayName("Test desired access setter")
    void testSetDesiredAccess() {
        request = new Smb2CreateRequest(mockConfig, "test.txt");

        int access = 0x12345678;
        request.setDesiredAccess(access);

        byte[] buffer = new byte[1024];
        request.writeBytesWireFormat(buffer, 0);

    void testGetFileIndex() throws SMBProtocolDecodingException {
        // Prepare test data
        byte[] buffer = createValidBuffer("file.txt", "FILE~1.TXT", true);
        int expectedFileIndex = 0x12345678;
        SMBUtil.writeInt4(expectedFileIndex, buffer, 4);

        // Decode
        fileBothDirectoryInfo.decode(buffer, 0, buffer.length);

        // Verify

    void testReadBytesWireFormatReserved2Field() throws Exception {
        // Given
        byte[] buffer = new byte[256];
        int bodyStart = 0;
        int dataOffsetFromHeader = 80;
        int reserved2Value = 0x12345678;

        // Write structure
        SMBUtil.writeInt2(17, buffer, bodyStart);
        buffer[bodyStart + 2] = (byte) dataOffsetFromHeader;
        SMBUtil.writeInt4(10, buffer, bodyStart + 4);

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        assertEquals("FFFFFFFFFFFFFFFF", Hexdump.toHexString(-1L, 16));

        // Test different sizes
        assertEquals("00000000", Hexdump.toHexString(0L, 8));
        assertEquals("12345678", Hexdump.toHexString(0x12345678L, 8));
    }

    @Test
    @DisplayName("Should handle special byte values correctly")
    void testSpecialByteValues() {
        // Test boundary values

        assertEquals("00FF", Hexdump.toHexString(255L, 4));

        // Test larger values
        assertEquals("0000000012345678", Hexdump.toHexString(0x12345678L, 16));
        assertEquals("12345678", Hexdump.toHexString(0x12345678L, 8));
        assertEquals("5678", Hexdump.toHexString(0x12345678L, 4));

        // Test negative values (treated as unsigned)
        assertEquals("FFFFFFFFFFFFFFFF", Hexdump.toHexString(-1L, 16));