* Also updates the searchFieldSet for O(1) lookup performance.
     *
     * @param supportedFields array of field names that can be searched
     */
    public void setSearchFields(final String[] supportedFields) {
        searchFields = supportedFields;
        searchFieldSet = new HashSet<>();
        Collections.addAll(searchFieldSet, supportedFields);
    }

    /**

     * Test that setting search fields creates both array and Set.
     */
    @Test
    public void test_setSearchFields_createsSet() {
        String[] fields = { "field1", "field2", "field3" };
        queryFieldConfig.setSearchFields(fields);

        // Verify array is set
        assertNotNull(queryFieldConfig.searchFields);
        assertSame(fields, queryFieldConfig.searchFields);
        assertEquals(3, queryFieldConfig.searchFields.length);

        queryFieldConfig = ComponentUtil.getQueryFieldConfig();

        // Set up search fields
        String[] searchFields = { "title", "content", "url", "host", "filetype" };
        queryFieldConfig.setSearchFields(searchFields);
    }

    /**
     * Test isSearchField() with Set-based lookup.
     */
    @Test
    public void test_isSearchField_withSetBasedLookup() {
        // Test valid search fields

        queryFieldConfig.setSearchFields(fields);

        String[] result = queryFieldConfig.getSearchFields();
        assertSame(fields, result);
    }

    @Test
    public void test_setSearchFields() {
        String[] fields = { "search1", "search2", "search3" };
        queryFieldConfig.setSearchFields(fields);

        assertSame(fields, queryFieldConfig.searchFields);