SearchHelper.SearchRequestParamsRewriter rewriter1 = p -> {
            ((MockSearchRequestParams) p).setQuery("rewritten1");
            return p;
        };
        SearchHelper.SearchRequestParamsRewriter rewriter2 = p -> {
            ((MockSearchRequestParams) p).setQuery("rewritten2");
            return p;
        };

        searchHelper.addRewriter(rewriter1);
        searchHelper.addRewriter(rewriter2);