byte[] dst = new byte[15]; // Increased buffer size to accommodate offset + 8 bytes
        int offset = 3; // start in the middle to ensure no tail is overwritten
        int bytesWritten = cmd.writeParametersWireFormat(dst, offset);
        assertEquals(8, bytesWritten, "writeParametersWireFormat should write 8 bytes");

        byte[] expected = expectedParameters(fid, securityInformation);

     */
    private static byte[] decryptRC4(byte[] data, Key key) throws GeneralSecurityException, NoSuchAlgorithmException,
            NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
        Cipher cipher;
        byte[] decrypt;
        byte[] code = new byte[4];
        Encdec.enc_uint32le(2, code, 0);
        byte[] codeHmac = getHmac(code, key.getEncoded());

     */
    private byte[] generateTestData(int size) {
        byte[] data = new byte[size];

        // Create data with repeating patterns
        for (int i = 0; i < size; i++) {
            if (i % 100 < 50) {
                data[i] = (byte) 'A';
            } else if (i % 100 < 75) {
                data[i] = (byte) 'B';
            } else {

        assertEquals(0, dst[1]);

        // Verify descriptor (WrLehDO\0B16BBDz\0 in ASCII)
        String expectedDescr = "WrLehDO\u0000B16BBDz\u0000";
        byte[] expectedDescrBytes = expectedDescr.getBytes("ASCII");
        byte[] actualDescrBytes = new byte[expectedDescrBytes.length];
        System.arraycopy(dst, 2, actualDescrBytes, 0, expectedDescrBytes.length);
        assertArrayEquals(expectedDescrBytes, actualDescrBytes);

    private Configuration mockConfig;
    private CIFSContext mockContext;
    private SecureRandom mockRandom;
    private Smb2NegotiateRequest request;
    private byte[] testMachineId = new byte[16];
    private byte[] testSalt = new byte[32];

    @BeforeEach
    void setUp() {
        mockConfig = mock(Configuration.class);
        mockContext = mock(CIFSContext.class);
        mockRandom = mock(SecureRandom.class);

		t.Fatal(err)
	}
	if err := w.Close(); err != nil {
		t.Fatal(err)
	}
	b := buf.Bytes()

	var sig [4]byte
	binary.LittleEndian.PutUint32(sig[:], uint32(fileHeaderSignature))

	idx := bytes.Index(b, sig[:])
	if idx == -1 {
		t.Fatal("file header not found")
	}
	b = b[idx:]

	if !bytes.Equal(b[6:10], []byte{0, 0, 0, 0}) { // FileHeader.Flags: 0, FileHeader.Method: 0

	*b = block{}
}

type headerV7 [blockSize]byte

func (h *headerV7) name() []byte     { return h[000:][:100] }
func (h *headerV7) mode() []byte     { return h[100:][:8] }
func (h *headerV7) uid() []byte      { return h[108:][:8] }
func (h *headerV7) gid() []byte      { return h[116:][:8] }
func (h *headerV7) size() []byte     { return h[124:][:12] }
func (h *headerV7) modTime() []byte  { return h[136:][:12] }

        doNothing().when(raf).write(any(byte[].class), anyInt(), anyInt());

        raf.writeBytes("hi");
        raf.writeChars("yo");

        verify(raf).write(any(byte[].class), eq(0), eq(2)); // bytes
        verify(raf).write(any(byte[].class), eq(0), eq(4)); // chars
    }

    @Test
    @DisplayName("writeUTF(): prefixes size and writes encoded bytes")

        // Write version major (1 byte)
        buffer[bufferIndex++] = (byte) versionMajor;

        // Write version minor (1 byte)
        buffer[bufferIndex++] = (byte) versionMinor;

        // Write type (4 bytes)
        SMBUtil.writeInt4(serverType, buffer, bufferIndex);
        bufferIndex += 4;

        // Write comment offset (4 bytes)

        byte[] buffer = new byte[256];
        int written = trans2FindNext2.writeParametersWireFormat(buffer, 0);

        // Verify sid (2 bytes)
        assertEquals(TEST_SID, SMBUtil.readInt2(buffer, 0));

        // Verify maxItems (2 bytes)
        assertEquals(TEST_BATCH_COUNT, SMBUtil.readInt2(buffer, 2));

        // Verify informationLevel (2 bytes) - should be SMB_FILE_BOTH_DIRECTORY_INFO (0x104)