}

    @Test
    public void test_getHighlightPrefix() {
        assertEquals("hl_", queryHelper.getHighlightPrefix());
    }

    @Test
    public void test_getDefaultFacetInfo() {
        assertNull(queryHelper.getDefaultFacetInfo());
    }

    @Test
    public void test_setDefaultFacetInfo() {
        FacetInfo facetInfo = new FacetInfo();