}

    @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];

import jcifs.internal.util.SMBUtil;

/**
 * Test class for ValidateNegotiateInfoRequest
 */
class ValidateNegotiateInfoRequestTest {

    private static final int DEFAULT_CAPABILITIES = 0x12345678;
    private static final int DEFAULT_SECURITY_MODE = 0x0003;
    private byte[] defaultClientGuid;
    private int[] defaultDialects;

    @BeforeEach
    void setUp() {

    /**
     * Array of hexadecimal digit characters used for converting binary data to hex representation.
     */
    public static final char[] HEX_DIGITS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };

    /**
     * Generate "hexdump" output of the buffer at src like the following:
     *
     * <pre>

        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);

        // 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++) {

        stubValidTree(6L, true, false); // SMB1

        SmbFileHandleImpl h = new SmbFileHandleImpl(cfg, 42, tree, "//s/share", 0xA, 0xB, 0xC, 0xD, 0L);

        long lastWrite = 123456789L;
        h.close(lastWrite);

        // Verify SMB1 close path uses request + response overload

    @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

        @ValueSource(strings = { "Simple ASCII", "Special chars: !@#$%^&*()", "Unicode: ñöt ascii ℃", "Mixed: ASCII + 中文 + Русский",
                "Emojis: 🎉🌟💻", "Very long string with multiple words and various characters 1234567890" })
        void testGetBytesWithVariousInputs(String input) {
            // When
            byte[] result = Strings.getBytes(input, StandardCharsets.UTF_8);

            // Then