assertEquals(0, result.length);
        assertSame(StringUtil.EMPTY_STRINGS, result);
    }

    @Test
    public void test_distinct_emptyArray() {
        // Test distinct with empty array
        String[] input = new String[0];
        String[] result = invokeDistinct(input);
        assertSame(input, result);
    }

    @Test
    public void test_distinct_singleElement() {

            }
        }
    }

    /**
     * Sets the roles that are allowed to access the search engine API.
     *
     * @param acceptedRoles array of role names that can access the API
     */
    public void setAcceptedRoles(final String[] acceptedRoles) {
        this.acceptedRoles = acceptedRoles;
    }

    /**

        facetInfo.sort = "key.ASC";
        order = facetInfo.getBucketOrder();
        assertNotNull(order);
        assertEquals(BucketOrder.key(true), order);
    }

    // Test addQuery with null query array
    @Test
    public void test_addQuery_nullArray() {
        assertNull(facetInfo.query);
        facetInfo.addQuery("query1");
        assertNotNull(facetInfo.query);

        assertEquals(1, chain3.updateCallCount);
    }

    // Test addChain null handling
    @Test
    public void test_addChain_withNull() {
        // ArrayUtils.addAll handles null gracefully by adding it to the array
        authenticationManager.addChain(null);

        // Verify null chain doesn't cause issues during operations
        User user = createTestUser("testuser");
        try {

        return config.searchFieldSet != null && config.searchFieldSet.contains(field);
    }

    /**
     * Gets the query languages from the current request.
     * @return An optional containing the query languages array, or empty if not available.
     */
    protected OptionalThing<String[]> getQueryLanguages() {
        return LaRequestUtil.getOptionalRequest()
                .map(request -> ComponentUtil.getFessConfig()

data-type=\"only-this\"><i class=\"fas fa-times\"></i></a><a class=\"nav-link\" data-toggle=\"row\" id=\"${navId}\" href=\"#${tabId}\" role=\"tab\" aria-controls=\"${tabId}\" aria-selected=\"false\">${title}</a></li>`\n    $(SELECTOR_TAB_NAVBAR_NAV).append(unescape(escape(newNavItem)))\n\n    const newTabItem = `<div class=\"tab-pane fade\" id=\"${tabId}\" role=\"tabpanel\" aria-labelledby=\"${navId}\"><iframe src=\"${link}\"></iframe></div>`\n    $(SELECTOR_TAB_CONTENT).append(unescape(escape(newTabItem)))\n\n...

success.crud_delete_crud_table = Daten gelöscht.
errors.front_footer=
errors.front_header=
errors.front_prefix=<div class="alert alert-warning">
errors.front_suffix=</div>

            var daysInLastMonth = moment([lastYear, lastMonth]).daysInMonth();
            var dayOfWeek = firstDay.day();

            //initialize a 6 rows x 7 columns array for the calendar
            var calendar = [];
            calendar.firstDay = firstDay;
            calendar.lastDay = lastDay;

            for (var i = 0; i < 6; i++) {
                calendar[i] = [];

success.crud_delete_crud_table = Gegevens verwijderd.
errors.front_footer=
errors.front_header=
errors.front_prefix=<div class="alert alert-warning">
errors.front_suffix=</div>

                "                <img src=\"https://fast.wistia.com/embed/medias/$2/swatch\" style=\"filter:blur(5px);height:100%;object-fit:contain;width:100%;\" alt=\"$1\" aria-hidden=\"true\" onload=\"this.parentNode.style.opacity=1;\" /> \n" +
                "        </div></div></div></div> \n" +
                "    </div> \n" +
                "  </div> \n" +
                "</details>");