byte subCmd = (byte) getPrivateField(cmd, "subCommand");
        assertEquals(subCmd, buf[0]);
        assertEquals((byte) 0x00, buf[1]);
    }

    @Test
    @DisplayName("writeParametersWireFormat writes referral level and path")
    void testWriteParams() throws Exception {
        Trans2GetDfsReferral cmd = new Trans2GetDfsReferral("abc");
        setPrivateField(cmd, "maxReferralLevel", 0x12AB);
        byte[] buffer = new byte[100];

    }

    @Test
    @DisplayName("Test DFS referral data")
    void testDfsReferralData() throws Exception {
        String url = "smb://server/share/path/";
        DummySmbResourceLocator loc = new DummySmbResourceLocator(url);

        // Initially no DFS referral
        assertNull(loc.getDfsReferral());

        // Set and retrieve DFS referral
        loc.setDfsReferral(dfs);

        }
    }

    @Nested
    @DisplayName("Combine Tests")
    class CombineTests {

        @Test
        @DisplayName("Should combine two referral data objects")
        void testCombine() {
            // Setup first referral
            DfsReferralDataImpl first = new DfsReferralDataImpl();
            when(mockReferral.getTtl()).thenReturn(300);
            when(mockReferral.getRFlags()).thenReturn(0);

    //                                                                           =========
    /** gidNumber */
    protected Long gidNumber;

    /** name */
    protected String name;

    // [Referrers] *comment only

    // ===================================================================================
    //                                                                             DB Meta

        assertEquals(0, derivedBuffer.start); // Derived buffer starts from the original buffer's start
        assertEquals(10, derivedBuffer.index);
        assertSame(ndrBuffer.deferred, derivedBuffer.deferred); // Deferred should be the same as original

        // Ensure changes to derived buffer don't affect original's index/start
        derivedBuffer.advance(5);
        assertEquals(15, derivedBuffer.index);

    protected String updatedBy;

    /** updatedTime */
    protected Long updatedTime;

    /** value */
    protected String value;

    /** virtualHost */
    protected String virtualHost;

    // [Referrers] *comment only

    // ===================================================================================
    //                                                                             DB Meta

        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        if (!fessConfig.isAcceptedSearchReferer(request.getHeader("referer"))) {
            writeJsonResponse(HttpServletResponse.SC_BAD_REQUEST, escapeJsonKeyValue(MESSAGE_FIELD, "Referer is invalid."));
            return;
        }

        if (!fessConfig.isApiSearchScroll()) {

    }

    /**
     * Get the preferred size for send operations
     *
     * @return preferred send size in bytes
     */
    public int getPreferredSendSize() {
        return preferredSendSize;
    }

    /**
     * Set the preferred size for send operations
     *
     * @param preferredSendSize preferred send size in bytes
     */

    //                                                                           =========
    /** name */
    protected String name;

    // [Referrers] *comment only

    // ===================================================================================
    //                                                                             DB Meta

                { new ASN1ObjectIdentifier("1.2.3.4.5"), false } };
    }

    @ParameterizedTest(name = "non-anon preferred mech {0} -> {1}")
    @MethodSource("preferredMechData_nonAnonymous")
    void isPreferredMech_nonAnonymous(ASN1ObjectIdentifier oid, boolean expected) {
        Kerb5Authenticator auth = new Kerb5Authenticator(new Subject());