}

    private void setupMockComponents(final List<Map<String, Object>> documents) {
        final SearchEngineClient searchEngineClient = new SearchEngineClient() {
            @Override
            public long scrollSearch(final String index, final SearchCondition<org.opensearch.action.search.SearchRequestBuilder> condition,
                    final BooleanFunction<Map<String, Object>> cursor) {
                long count = 0;

        final JsonRequestParams params = new JsonRequestParams(request, fessConfig);
        try {
            response.setContentType("application/x-ndjson; charset=UTF-8");
            final long count = searchHelper.scrollSearch(params, doc -> {
                buf.setLength(0);
                buf.append('{');
                boolean first2 = true;
                for (final Map.Entry<String, Object> entry : doc.entrySet()) {