@BeforeEach
    public void createClone() {
        // Use the shared renderer as a prototype object, as specified in the API contract
        renderer = (JsonRenderer) blueprint.clone();
        renderer.init();
    }
Functional testing of {@link JsonRenderer}.

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