indexUpdater.updateDocument(doc);

        assertEquals("existing_id", doc.get("doc_id"));
    }

    // Test addBoostValue
    public void test_addBoostValue() {
        final Map<String, Object> doc = new HashMap<>();
        indexUpdater.addBoostValue(doc, 3.5f);

        assertEquals(3.5f, doc.get("boost"));
    }

    // Test addClickCountField with URL

            if (docBoostMatcher.match(map)) {
                documentBoost = docBoostMatcher.getValue(map);
                break;
            }
        }

        if (documentBoost > 0) {
            addBoostValue(map, documentBoost);
        }

        if (!map.containsKey(fessConfig.getIndexFieldDocId())) {
            map.put(fessConfig.getIndexFieldDocId(), systemHelper.generateDocId(map));
        }