private FastHit createHit(String uri,int relevancy,int amid,int bmid) {
        FastHit hit = new FastHit(uri,relevancy);
        hit.setField("amid", String.valueOf(amid));
        hit.setField("bmid", String.valueOf(bmid));
        return hit;
    }
Simulates the return when grouping is used for aggregation purposes and there is a plain hit list in addition:
The returned result contains both regular hits at the top level (from non-grouping)
and groups contained aggregation information.
container-search/src/test/java/com/yahoo/prelude/searcher/test/FieldCollapsingSearcherTestCase.java