assertSame(dataMap, result);
    }

    public void test_addClickCountField() {
        searchLogHelper.clickCount = 42;

        Map<String, Object> doc = new HashMap<>();
        indexUpdateCallback.addClickCountField(doc, "http://example.com", "click_count");

        assertEquals(42, doc.get("click_count"));
    }

    public void test_addFavoriteCountField() {
        searchLogHelper.favoriteCount = 99L;

        indexUpdater.addClickCountField(doc);

        assertEquals(10, doc.get("click_count"));
    }

    // Test addClickCountField without URL
    public void test_addClickCountField_withoutUrl() {
        final Map<String, Object> doc = new HashMap<>();

        indexUpdater.addClickCountField(doc);

        assertNull(doc.get("click_count"));
    }

    // Test addClickCountField with blank URL

                case FessConfig.INDEX_FIELD_favorite_count:
                    return "favorite_count";
                case FessConfig.INDEX_FIELD_click_count:
                    return "click_count";
                case FessConfig.INDEX_FIELD_config_id:
                    return "config_id";
                case FessConfig.INDEX_FIELD_EXPIRES:
                    return "expires";

            public String getIndexFieldThumbnail() {
                return "thumbnail";
            }

            @Override
            public String getIndexFieldClickCount() {
                return "click_count";
            }

            @Override
            public String getIndexFieldFavoriteCount() {
                return "favorite_count";
            }

            @Override

            public String getIndexFieldThumbnail() {
                return "thumbnail";
            }

            @Override
            public String getIndexFieldClickCount() {
                return "click_count";
            }

            @Override
            public String getIndexFieldFavoriteCount() {
                return "favorite_count";
            }

            @Override

            public String getIndexFieldThumbnail() {
                return "thumbnail";
            }

            @Override
            public String getIndexFieldClickCount() {
                return "click_count";
            }

            @Override
            public String getIndexFieldFavoriteCount() {
                return "favorite_count";
            }

            @Override

            public String getIndexFieldThumbnail() {
                return "thumbnail";
            }

            @Override
            public String getIndexFieldClickCount() {
                return "click_count";
            }

            @Override
            public String getIndexFieldFavoriteCount() {
                return "favorite_count";
            }

            @Override

                            builder.add(req);
                        }
                    });
                }
            } catch (final Exception e) {
                logger.warn("Failed to update clickCounts", e);
            }
        }
    }

    /**
     * Processes a list of click logs.
     *
     * @param clickLogList The click log list.
     */