String[] fields = { "facet1", "facet2", "facet3" };
        queryFieldConfig.setFacetFields(fields);

        assertSame(fields, queryFieldConfig.facetFields);
    }

    @Test
    public void test_getSortFields() {
        String[] fields = { "sort1", "sort2", "sort3" };
        queryFieldConfig.setSortFields(fields);

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