assertTrue(qrList.containsAll(checkList));

        checkList = Arrays.asList(doc1, doc2);
        assertFalse(qrList.containsAll(checkList));
    }

    public void test_listOperations_indexOperations() {
        List<Map<String, Object>> documentList = new ArrayList<>();
        Map<String, Object> doc1 = new HashMap<>();
        doc1.put("title", "Doc1");
        Map<String, Object> doc2 = new HashMap<>();