verify(mockNdrBuffer).enc_ndr_small((byte) 0x11);
            verify(mockNdrBuffer).enc_ndr_small((byte) 0x22);
            verify(mockNdrBuffer).advance(6);
            verify(mockNdrBuffer).derive(anyInt());
            // Verify each node byte is encoded
            verify(mockNdrBuffer).enc_ndr_small((byte) 0xAA);
            verify(mockNdrBuffer).enc_ndr_small((byte) 0xBB);

            lenient().doNothing().when(mockBuffer).enc_ndr_small(anyInt());
            lenient().doNothing().when(mockBuffer).enc_ndr_long(anyInt());
            lenient().doNothing().when(mockBuffer).enc_ndr_short(anyInt());

            message.encode_header(mockBuffer);

            // Verify that key values were written
            verify(mockBuffer).enc_ndr_small(5); // RPC version

        // Verify that enc_ndr_small was called with the correct value
        verify(mockNdrBuffer, times(1)).enc_ndr_small(100);
        verifyNoMoreInteractions(mockNdrBuffer);
    }

    @Test
    void testDecode() throws NdrException {
        // Define the value that dec_ndr_small should return
        int decodedValue = 200;
        when(mockNdrBuffer.dec_ndr_small()).thenReturn(decodedValue);

        // Verify security descriptor encoding
        verify(mockDeferredBuffer).enc_ndr_long(2);
        verify(mockDeferredBuffer).advance(2);
        verify(mockDeferredBuffer).enc_ndr_small((byte) 1);
        verify(mockDeferredBuffer).enc_ndr_small((byte) 2);
    }

    @Test
    void testShareInfoCtr0EncodeWithArray() throws NdrException {
        srvsvc.ShareInfoCtr0 ctr0 = new srvsvc.ShareInfoCtr0();

        verify(mockNdrBuffer).enc_ndr_long(qosInfo.length);
        verify(mockNdrBuffer).enc_ndr_short(qosInfo.impersonation_level);
        verify(mockNdrBuffer).enc_ndr_small(qosInfo.context_mode);
        verify(mockNdrBuffer).enc_ndr_small(qosInfo.effective_only);
    }

    @Test
    void testLsarQosInfoDecode() throws NdrException {
        lsarpc.LsarQosInfo qosInfo = new lsarpc.LsarQosInfo();

            lenient().doNothing().when(mockBuffer).enc_ndr_short(anyInt());
            lenient().doNothing().when(mockBuffer).enc_ndr_long(anyInt());
            lenient().doNothing().when(mockBuffer).enc_ndr_small(anyInt());

            DcerpcBind bindWithParams = new DcerpcBind(mockBinding, mockHandle);

            // When/Then - Expect NPE due to UUID.encode() limitations

     *
     * @param s the small integer value to encode
     */
    public void enc_ndr_small(final int s) {
        buf[index] = (byte) (s & 0xFF);
        advance(1);
    }

    /**
     * Decodes a small integer (1 byte) from NDR format.
     *
     * @return the decoded small integer value
     */
    public int dec_ndr_small() {
        final int val = buf[index] & 0xFF;
        advance(1);

     * @param s the small integer value to encode
     */
    public void enc_ndr_small(final int s) {
        this.buf[this.index] = (byte) (s & 0xFF);
        advance(1);
    }

    /**
     * Decodes a small integer (1 byte) from NDR format.
     *
     * @return the decoded small integer value
     */
    public int dec_ndr_small() {
        final int val = this.buf[this.index] & 0xFF;
        advance(1);

        NdrBuffer buf = new NdrBuffer(new byte[1024], 0);

        // Manually encode a response header
        buf.enc_ndr_small(5); // RPC version
        buf.enc_ndr_small(0); // minor version
        buf.enc_ndr_small(2); // ptype = 2 (Response)
        buf.enc_ndr_small(0); // flags
        buf.enc_ndr_long(0x00000010); // data representation
        buf.enc_ndr_short(20); // length

        buf.enc_ndr_short(this.max_recv);
        buf.enc_ndr_long(0); /* assoc. group */
        buf.enc_ndr_small(1); /* num context items */
        buf.enc_ndr_small(0); /* reserved */
        buf.enc_ndr_short(0); /* reserved2 */
        buf.enc_ndr_short(0); /* context id */
        buf.enc_ndr_small(1); /* number of items */
        buf.enc_ndr_small(0); /* reserved */
        this.binding.getUuid().encode(buf);