}

        @ParameterizedTest
        @DisplayName("Should encode consistently with various flag values")
        @ValueSource(ints = { 0, 1, 2, 4, 16, 0xFF, 0xFFFF, 0xFFFFFF, 0x7FFFFFFF, -1 })
        void testEncodingWithVariousFlags(int flags) {
            lock = new Smb2Lock(1024L, 2048L, flags);
            int encoded = lock.encode(buffer, 0);

            assertEquals(24, encoded);

        return Stream.of(Arguments.of(0), Arguments.of(1), Arguments.of(255), Arguments.of(256), Arguments.of(65535), Arguments.of(65536),
                Arguments.of(0x7FFFFFFF), Arguments.of(0xFFFFFFFF));
    }

    @Test
    @DisplayName("readInt2 should correctly read 16-bit integer")
    void testReadInt2() {
        byte[] src = { (byte) 0x12, (byte) 0x34, (byte) 0x56 };

     */
    public static final int NEGATIVE_SESSION_RESPONSE = 0x83;
    static final int SESSION_RETARGET_RESPONSE = 0x84;
    static final int SESSION_KEEP_ALIVE = 0x85;

    static final int MAX_MESSAGE_SIZE = 0x0001FFFF;
    static final int HEADER_LENGTH = 4;

    static void writeInt2(final int val, final byte[] dst, int dstIndex) {
        dst[dstIndex] = (byte) (val >> 8 & 0xFF);
        dstIndex++;

        right ^= work;
        leftt ^= work << 4;

        work = (leftt >>> 16 ^ right) & 0x0000ffff;
        right ^= work;
        leftt ^= work << 16;

        work = (right >>> 2 ^ leftt) & 0x33333333;
        leftt ^= work;
        right ^= work << 2;

        work = (right >>> 8 ^ leftt) & 0x00ff00ff;
        leftt ^= work;
        right ^= work << 8;
        right = right << 1 | right >>> 31 & 1;

     */
    @Test
    void testGetMessageByDcerpcError_smallerThanAny() {
        int unknownCode = -1;
        String message = DcerpcException.getMessageByDcerpcError(unknownCode);
        assertEquals("0xFFFFFFFF", message, "Should return hex string for code smaller than any known.");
    }

    /**
     * Test getMessageByDcerpcError() with an error code larger than any known.

     */
    public static final int NEGATIVE_SESSION_RESPONSE = 0x83;
    static final int SESSION_RETARGET_RESPONSE = 0x84;
    static final int SESSION_KEEP_ALIVE = 0x85;

    static final int MAX_MESSAGE_SIZE = 0x0001FFFF;
    static final int HEADER_LENGTH = 4;

    static void writeInt2(final int val, final byte[] dst, int dstIndex) {
        dst[dstIndex] = (byte) (val >> 8 & 0xFF);
        dstIndex++;

                Arguments.of(0x12345678, new byte[] { 0x78, 0x56, 0x34, 0x12 }),
                Arguments.of(0xFFFFFFFF, new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF }),
                Arguments.of(0x7FFFFFFF, new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0x7F }));
    }

    @ParameterizedTest
    @MethodSource("int32Provider")

        assertEquals(0xFFFF, pdis.readUnsignedShort());
    }

    @Test
    public void testReadUnsignedInt() throws IOException {
        // Little-endian 0xFFFFFFFF -> 0xFF 0xFF 0xFF 0xFF
        byte[] data = new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF };
        PacDataInputStream pdis = createInputStream(data);

    void testFaultCodeValueRanges() {
        // Standard fault codes (0x00000000 - 0x0000FFFF range)
        assertTrue(DcerpcError.DCERPC_FAULT_OTHER >= 0 && DcerpcError.DCERPC_FAULT_OTHER <= 0x0000FFFF,
                "DCERPC_FAULT_OTHER should be in standard range");
        assertTrue(DcerpcError.DCERPC_FAULT_ACCESS_DENIED >= 0 && DcerpcError.DCERPC_FAULT_ACCESS_DENIED <= 0x0000FFFF,
                "DCERPC_FAULT_ACCESS_DENIED should be in standard range");

        // Test with max int value (unsigned interpretation)
        buffer.putInt(0, 0xFFFFFFFF);
        assertEquals(0xFFFFFFFF, NtlmMessage.readULong(data, 0), "Should read max ULong correctly.");

        // Test with a negative int (should be interpreted as unsigned positive)
        buffer.putInt(0, -1); // -1 is 0xFFFFFFFF
        assertEquals(0xFFFFFFFF, NtlmMessage.readULong(data, 0), "Should interpret -1 as unsigned max ULong.");
    }