}

    private static final SID USER_SID = new SID() {

        @Override
        public SID getDomainSid() {
            return null;
        }

        @Override
        public int getRid() {
            return 0;
        }

        @Override
        public String toDisplayString() {
            return getDomainName() + "\\" + getAccountName();
        }

        @Override

        }

        @Test
        @DisplayName("getRid throws for domain SIDs")
        void testGetRidForDomainThrows() {
            byte[] ident = new byte[] { 0, 0, 0, 0, 0, 5 };
            SID domain = new SID(buildSidT((byte) 1, ident, 10, 20), jcifs.SID.SID_TYPE_DOMAIN, "DOM", null, false);
            IllegalArgumentException ex = assertThrows(IllegalArgumentException.class, domain::getRid);

        rpcSid.sub_authority = new int[] { 21, 123, 456, 789, 1000 };

        SID userSid = new SID(rpcSid, SID.SID_TYPE_USER, "MYDOMAIN", "user", false);
        assertEquals(1000, userSid.getRid());
    }

    /**
     * Test getting the RID from a domain SID.
     *
     * @throws SmbException if the SID string is invalid
     */
    @Test

    }

    /**
     * Get the RID
     *
     * This is the last subauthority identifier
     *
     * @return the RID
     */
    @Override
    public int getRid() {
        if (getType() == SID_TYPE_DOMAIN) {
            throw new IllegalArgumentException("This SID is a domain sid");
        }
        return this.sub_authority[this.sub_authority_count - 1];
    }

     *
     * @return domain SID
     */
    SID getDomainSid();

    /**
     * Get the RID
     *
     * This is the last subauthority identifier
     *
     * @return the RID
     */
    int getRid();

    /**
     * Return a String representing this SID ideal for display to
     * users. This method should return the same text that the ACL
     * editor in Windows would display.
     * <p>

                for (final ACE ace : aces) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("ACE:{}", ace);
                    }
                    processAllowedSIDs(file, ace.getSID(), ace.isAllow() ? sidAllowSet : sidDenySet);
                }
                responseData.addMetaData(SMB_ALLOWED_SID_ENTRIES, sidAllowSet.toArray(new SID[sidAllowSet.size()]));

    }

    /**
     * Gets the RID (relative identifier) of this SID.
     *
     * @return the RID
     */
    public int getRid() {
        if (getType() == SID_TYPE_DOMAIN) {
            throw new IllegalArgumentException("This SID is a domain sid");
        }
        return sub_authority[sub_authority_count - 1];
    }

    /**

        void testTidProperty() {
            assertEquals(0xFFFF, testBlock.getTid());
            testBlock.setTid(0x1234);
            assertEquals(0x1234, testBlock.getTid());
        }

        @Test
        @DisplayName("Test PID property")
        void testPidProperty() {
            testBlock.setPid(0x5678);
            assertEquals(0x5678, testBlock.getPid());
        }

        @Test

    class ConstructorTests {

        private Configuration mockConfig;

        @BeforeEach
        void setUp() {
            mockConfig = mock(Configuration.class);
            when(mockConfig.getPid()).thenReturn(12345);
        }

        @Test
        @DisplayName("Should initialize with correct command and MID")
        void testConstructorInitialization() throws Exception {
            // Given

            this.andx.setFlags(getFlags());
            this.andx.setFlags2(getFlags2());
            this.andx.setTid(getTid());
            this.andx.setPid(getPid());
            this.andx.setUid(getUid());
            this.andx.setMid(getMid());
            this.andx.setUseUnicode(this.isUseUnicode());

            if (this.andx instanceof AndXServerMessageBlock) {