private static List<Searcher> twoSearchers(String id1, String id2, boolean ordered) {
        List<Searcher> searchers=new ArrayList<>();
        searchers.add(new TestSearcher(new ComponentId(id1)));
        searchers.add(createSecondSearcher(new ComponentId(id2), ordered));
        return searchers;
    }
A search chain consisting of two searchers.
@author bratseth
@author Tony Vaagenes
container-search/src/test/java/com/yahoo/search/searchchain/test/SimpleSearchChain.java