RenderDataUtil.register(data, "partialResults", partialResults);
            RenderDataUtil.register(data, "queryTime", queryTime);
            RenderDataUtil.register(data, "searchQuery", searchQuery);
            RenderDataUtil.register(data, "requestedTime", requestedTime);
        }
    }

        /**
         * The time taken for the search query in milliseconds.
         */
        protected long queryTime;
        /**
         * The search query string.
         */
        protected String searchQuery;
        /**
         * The time when the search request was made.
         */
        protected long requestedTime;
        /**
         * The list of facet fields and their values.
         */

    @Test
    public void test_messageCodeWithPropertyKey() {
        // Setup - test message code with different property keys
        final String message = "Query field error";
        final String propertyKey = "searchQuery";
        final VaMessenger<FessMessages> messageCode = messages -> messages.addErrorsInvalidQueryUnknown(propertyKey);

        // Execute

            buf.append(escapeJson(pageNumbers));
            buf.append(",\"partial\":");
            buf.append(escapeJson(partial));
            buf.append(",\"search_query\":");
            buf.append(escapeJson(searchQuery));
            buf.append(",\"requested_time\":");
            buf.append(requestedTime);
            final String[] relatedQueries = relatedQueryHelper.getRelatedQueries(params.getQuery());

        assertTrue(populatedString.contains("allRecordCount=100"));
        assertTrue(populatedString.contains("execTime=0.5 sec"));
        assertTrue(populatedString.contains("searchQuery=test query"));
        assertTrue(populatedString.contains("queryId=test-id"));
        assertTrue(populatedString.contains("existNextPage=true"));
        assertTrue(populatedString.contains("existPrevPage=true"));

        assertTrue(toStringResult.contains("allRecordCount=100"));
        assertTrue(toStringResult.contains("allRecordCountRelation=eq"));
        assertTrue(toStringResult.contains("searchQuery=test query"));
        assertTrue(toStringResult.contains("execTime=1000"));
        assertTrue(toStringResult.contains("queryTime=500"));
        assertTrue(toStringResult.contains("partialResults=false"));
    }