}

    @Test
    public void testReadInt() throws IOException {
        // Little-endian 0x12345678 -> 0x78 0x56 0x34 0x12
        byte[] data = new byte[] { 0x78, 0x56, 0x34, 0x12 };
        PacDataInputStream pdis = createInputStream(data);
        assertEquals(0x12345678, pdis.readInt());
    }

    @Test
    public void testReadLong() throws IOException {

     */
    @Test
    void testConstructorWithError_unknownCode() {
        int errorCode = 0x12345678; // An arbitrary unknown error code
        DcerpcException exception = new DcerpcException(errorCode);

        assertEquals(errorCode, exception.getErrorCode(), "Error code should match the input.");
        assertEquals("0x12345678", exception.getMessage(), "Message should be hex string for unknown error code.");
    }

    /**

        when(mockNegotiate.getNegotiatedSendBufferSize()).thenReturn(65535);
        when(mockNegotiate.getNegotiatedMpxCount()).thenReturn(65535);
        when(mockNegotiate.getNegotiatedSessionKey()).thenReturn(0x12345678);
    }

    /** Simple test stub of {@link ServerData} */
    private static class ServerDataStub extends ServerData {
        public ServerDataStub() {
            this.security = SmbConstants.SECURITY_USER;

        @DisplayName("Should encode UUID correctly")
        void testUuidTEncode() throws NdrException {
            // Given: A UUID with test values
            rpc.uuid_t uuid = new rpc.uuid_t();
            uuid.time_low = 0x12345678;
            uuid.time_mid = (short) 0x9ABC;
            uuid.time_hi_and_version = (short) 0xDEF0;
            uuid.clock_seq_hi_and_reserved = (byte) 0x11;
            uuid.clock_seq_low = (byte) 0x22;

        assertEquals(0x1234, ServerMessageBlock.readInt2(buffer, 0));
    }

    @Test
    void testInt4ReadWrite() {
        byte[] buffer = new byte[4];
        ServerMessageBlock.writeInt4(0x12345678, buffer, 0);
        assertEquals(0x12345678, ServerMessageBlock.readInt4(buffer, 0));
    }

    @Test
    void testInt8ReadWrite() {
        byte[] buffer = new byte[8];
        long value = 0x123456789ABCDEF0L;

    testRotate(new byte[] {0, 1, 2, 3, 4, 5, 6}, -1, 1, 6, new byte[] {0, 2, 3, 4, 5, 1, 6});
    testRotate(new byte[] {0, 1, 2, 3, 4, 5, 6}, 0, 1, 6, new byte[] {0, 1, 2, 3, 4, 5, 6});
    testRotate(new byte[] {0, 1, 2, 3, 4, 5, 6}, 5, 1, 6, new byte[] {0, 1, 2, 3, 4, 5, 6});
    testRotate(new byte[] {0, 1, 2, 3, 4, 5, 6}, 14, 1, 6, new byte[] {0, 2, 3, 4, 5, 1, 6});

    // Rotate the first three elements

        response.getServerData().maxNumberVcs = 1;
        response.getServerData().maxBufferSize = 16384;
        response.getServerData().maxRawSize = 4096;
        response.getServerData().sessKey = 0x12345678;
        response.getServerData().scapabilities = SmbConstants.CAP_UNICODE;
        response.getServerData().serverTime = new Date().getTime();
        response.getServerData().serverTimeZone = -300;

        }
    }

    @Test
    @DisplayName("Test setup wire format structure")
    void testSetupWireFormatStructure() {
        notifyChange = new NtTransNotifyChange(mockConfig, 0xABCD, 0x12345678, true);
        byte[] dst = new byte[100];

        int bytesWritten = notifyChange.writeSetupWireFormat(dst, 10);

        // Verify structure:
        // Offset 0-3: Completion Filter (4 bytes)

        assertEquals(newState, leaseContext.getLeaseState());
    }

    @Test
    @DisplayName("Should set and get lease flags")
    void testLeaseFlagsAccessors() {
        int newFlags = 0x12345678;

        leaseContext.setLeaseFlags(newFlags);
        assertEquals(newFlags, leaseContext.getLeaseFlags());
    }

    @Test
    @DisplayName("Should encode context correctly")
    void testEncode() {

	MOVD $-32768, R6                // 38c08000
	MOVD $1234567, R5               // 6405001260a5d687 or 0600001238a0d687
	MOVW $1, R3                     // 38600001
	MOVW $-1, R4                    // 3880ffff
	MOVW $65535, R5                 // 6005ffff
	MOVW $65536, R6                 // 3cc00001
	MOVW $-32767, R5                // 38a08001
	MOVW $-32768, R6                // 38c08000
	MOVW $1234567, R5               // 6405001260a5d687 or 0600001238a0d687