private static SlimeAdapter dataFromSimplified(String simplified) {
        var decoder = new com.yahoo.slime.JsonDecoder();
        var slime = decoder.decode(new Slime(), Utf8.toBytes(simplified));
        return new SlimeAdapter(slime.get());
    }
Functional testing of {@link JsonRenderer}.

@author Steinar Knutsen
@author bratseth
container-search/src/test/java/com/yahoo/search/rendering/JsonRendererTestCase.java