// Test with null
        searchRenderData.setExecTime(null);
        assertNull(searchRenderData.getExecTime());

        // Test with empty string
        searchRenderData.setExecTime("");
        assertEquals("", searchRenderData.getExecTime());

        // Test with formatted time string
        searchRenderData.setExecTime("0.123 sec");
        assertEquals("0.123 sec", searchRenderData.getExecTime());

        assertEquals(facetResponse, qrList.getFacetResponse());

        // Test setters
        qrList.setSearchQuery("test query");
        assertEquals("test query", qrList.getSearchQuery());

        qrList.setExecTime(1000L);
        assertEquals(1000L, qrList.getExecTime());
    }

    @Test
    public void test_calculatePageInfo_withOffset() {
        QueryResponseList qrList = new QueryResponseList(null, 10, 20, 5) {