private static DocumentdbInfoConfig documentdbInfoConfig(String schemaName) {
        var db = new DocumentdbInfoConfig.Documentdb.Builder().name(schemaName);
        return new DocumentdbInfoConfig.Builder().documentdb(db).build();
    }
Tests the Fast searcher

@author bratseth
container-search/src/test/java/com/yahoo/prelude/fastsearch/IndexedBackendTestCase.java