void testWriteInt2() {
        byte[] dst = new byte[4];
        SessionServicePacket.writeInt2(0x1234, dst, 0);

        assertEquals((byte) 0x12, dst[0]);
        assertEquals((byte) 0x34, dst[1]);
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 255, 256, 32767, 65535 })
    @DisplayName("writeInt2 should handle various values")
    void testWriteInt2Various(int value) {

        // Encode "TEST" (0x54 0x45 0x53 0x54)
        // T=0x54: upper nibble 0x5->F(0x46), lower nibble 0x4->E(0x45)
        src[1] = 'F';
        src[2] = 'E'; // T
        // E=0x45: upper nibble 0x4->E(0x45), lower nibble 0x5->F(0x46)
        src[3] = 'E';
        src[4] = 'F'; // E
        // S=0x53: upper nibble 0x5->F(0x46), lower nibble 0x3->D(0x44)
        src[5] = 'F';
        src[6] = 'D'; // S

    }

    @Test
    @DisplayName("Should encode and decode UUIDs")
    void testUUIDOperations() {
        // Given
        byte[] uuid = { 0x12, 0x34, 0x56, 0x78, (byte) 0x9A, (byte) 0xBC, (byte) 0xDE, (byte) 0xF0, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66,
                0x77, (byte) 0x88 };
        byte[] buffer = new byte[16];

        // When
        System.arraycopy(uuid, 0, buffer, 0, 16);

        }

        @Test
        @DisplayName("DCERPC_PENDING_CANCEL should have correct value")
        void testDcerpcPendingCancel() {
            assertEquals(0x04, DcerpcConstants.DCERPC_PENDING_CANCEL, "DCERPC_PENDING_CANCEL should be 0x04");
        }

        @Test
        @DisplayName("DCERPC_RESERVED_1 should have correct value")
        void testDcerpcReserved1() {

	// map header, size 4
	// string "current"
	o = append(o, 0x84, 0xa7, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x74)
	o = msgp.AppendUint64(o, z.current)
	// string "next"
	o = append(o, 0xa4, 0x6e, 0x65, 0x78, 0x74)
	o = msgp.AppendUint64(o, z.next)
	// string "started"
	o = append(o, 0xa7, 0x73, 0x74, 0x61, 0x72, 0x74, 0x65, 0x64)
	o = msgp.AppendTime(o, z.started)
	// string "cycleCompleted"

     */
    int DCERPC_LAST_FRAG = 0x02; /* Last fragment */
    /**
     * Pending cancel flag - indicates cancel was pending at sender
     */
    int DCERPC_PENDING_CANCEL = 0x04; /* Cancel was pending at sender */
    /**
     * Reserved flag for future use
     */
    int DCERPC_RESERVED_1 = 0x08;
    /**
     * Supports concurrent multiplexing flag.
     */

        assertEquals(0, alignedBytes);
        assertEquals(4, ndrBuffer.getIndex());
    }

    @Test
    void testWriteOctetArray() {
        byte[] data = { 0x01, 0x02, 0x03, 0x04 };
        ndrBuffer.writeOctetArray(data, 0, data.length);

        assertEquals(data.length, ndrBuffer.getIndex());
        assertEquals(data.length, ndrBuffer.getLength());

    static java.util.stream.Stream<Arguments> int32Provider() {
        return java.util.stream.Stream.of(Arguments.of(0x00000000, new byte[] { 0x00, 0x00, 0x00, 0x00 }),
                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 }));
    }

        new byte[] {
          0x01, (byte) 0xc0, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00,
          0x14, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x04, 0x00,
          0x00, 0x00, 0x00, 0x14,
          0x00, 0x00, 0x00, 0x18,
          0x28, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00,
          0x02, 0x00, 0x00, 0x00,
          0x00, 0x00, 0x00, 0x00

            policyHandle.uuid.time_hi_and_version = (short) 0x3333;
            policyHandle.uuid.clock_seq_hi_and_reserved = (byte) 0x44;
            policyHandle.uuid.clock_seq_low = (byte) 0x55;
            policyHandle.uuid.node = new byte[] { (byte) 0x01, (byte) 0x02, (byte) 0x03, (byte) 0x04, (byte) 0x05, (byte) 0x06 };

            when(mockNdrBuffer.derive(anyInt())).thenReturn(mockNdrBuffer);