assertTrue(result);
    }

    // Test getImageFilename with docMap
    public void test_getImageFilename_withDocMap() {
        Map<String, Object> docMap = new HashMap<>();
        docMap.put("_id", "1234567890abcdef");

        String filename = thumbnailManager.getImageFilename(docMap);
        assertNotNull(filename);
        assertTrue(filename.endsWith(".png"));
        assertTrue(filename.contains("/"));
    }

    assertThat(UnsignedLongs.decode("0xffffffffffffffff")).isEqualTo(0xffffffffffffffffL);
    assertThat(UnsignedLongs.decode("01234567")).isEqualTo(01234567); // octal
    assertThat(UnsignedLongs.decode("#1234567890abcdef")).isEqualTo(0x1234567890abcdefL);
    assertThat(UnsignedLongs.decode("987654321012345678")).isEqualTo(987654321012345678L);
    assertThat(UnsignedLongs.decode("0x135791357913579")).isEqualTo(0x135791357913579L);

        assertEquals(8, info.size());
    }

    @Test
    @DisplayName("Test encode method with valid buffer")
    void testEncode() {
        // Create instance with known value
        long endOfFile = 0x123456789ABCDEFL;
        FileEndOfFileInformation info = new FileEndOfFileInformation(endOfFile);

        // Create buffer for encoding
        byte[] buffer = new byte[16];
        int bytesWritten = info.encode(buffer, 0);

     */
    @Test
    @DisplayName("Test FileEndOfFileInformation encode/decode round trip")
    void testFileEndOfFileInformationEncodeDecodeRoundTrip() throws SMBProtocolDecodingException {
        long originalValue = 0x123456789ABCDEFL;
        FileEndOfFileInformation original = new FileEndOfFileInformation(originalValue);

        // Encode
        byte[] buffer = new byte[8];
        int encoded = original.encode(buffer, 0);

        PacDataInputStream pdis = createInputStream(data);
        assertEquals(0x12345678, pdis.readInt());
    }

    @Test
    public void testReadLong() throws IOException {
        // Little-endian 0x123456789ABCDEF0 -> 0xF0 0xDE 0xBC 0x9A 0x78 0x56 0x34 0x12
        byte[] data = new byte[] { (byte) 0xF0, (byte) 0xDE, (byte) 0xBC, (byte) 0x9A, 0x78, 0x56, 0x34, 0x12 };
        PacDataInputStream pdis = createInputStream(data);

        when(response.getHeaderStart()).thenReturn(0);

        // Write FileInternalInfo data at the buffer offset
        // FileInternalInfo expects 8 bytes (IndexNumber as int8)
        SMBUtil.writeInt8(0x123456789ABCDEFL, buffer, 50);

        int result = response.readBytesWireFormat(buffer, bufferIndex);

        assertTrue(result >= 8);
        assertNotNull(response.getInfo());

        assertEquals("XXFFXXXXXX", new String(dst3));

        // Test long conversion
        char[] dst4 = new char[16];
        Hexdump.toHexChars(0x123456789ABCDEF0L, dst4, 0, 16);
        assertEquals("123456789ABCDEF0", new String(dst4));
    }

    @Test
    @DisplayName("Should verify HEX_DIGITS constant")
    void testHexDigitsConstant() {
        // Verify the HEX_DIGITS array contains correct values

        assertEquals("Password parameter is required", ex.getMessage());
    }

    @ParameterizedTest
    @ValueSource(strings = { "", "password", "pässwörd", "1234567890abcdef" })
    @DisplayName("nTOWFv1 equals getNTHash across inputs")
    void testNTOWFv1_delegatesToGetNTHash(String password) {
        // Act
        byte[] h1 = NtlmUtil.nTOWFv1(password);