assertEquals(5L, doc.get("favorite_count"));
    }

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

        indexUpdater.addFavoriteCountField(doc);

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

    // Test ingest with null IngestFactory

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

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

            @Override
            public String getIndexFieldConfigId() {
                return "config_id";
            }

            @Override

                    return "4000";

                // Crawler hotthread properties

                // Index field constants
                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";

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

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

            @Override
            public String getIndexFieldConfigId() {
                return "config_id";
            }

            @Override

                                    <label for="doc.favorite_count" class="col-sm-3 text-sm-right col-form-label">favorite_count</label>
                                    <div class="col-sm-9">
                                        <la:errors property="doc.favorite_count"/>
                                        <la:text styleId="doc.favorite_count"
                                                 property="doc.favorite_count"

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

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

            @Override
            public String getIndexFieldConfigId() {
                return "config_id";
            }

            @Override

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

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

            @Override
            public String getIndexFieldConfigId() {
                return "config_id";
            }

            @Override

index.id.digest.algorithm=SHA-512
# Initial password for the index user.
index.user.initial_password=admin

# field names

# Field name for favorite count in the index.
index.field.favorite_count=favorite_count
# Field name for click count in the index.
index.field.click_count=click_count
# Field name for config ID in the index.
index.field.config_id=config_id
# Field name for expiration date in the index.

            "filename", "content", "has_cache", "cache", "digest", "host", "site", "segment", "config_id", "parent_id", "content_length",
            "favorite_count", "click_count", "created", "timestamp", "last_modified", "expires", "virtual_host", "doc_id");

    // ===================================================================================
    // Attribute
    // =========

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

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

            @Override
            public String getIndexFieldConfigId() {
                return "config_id";
            }

            @Override