JsResponseBuilder builder = prepareRequestReturnBuilder(RenderingContext.CONFIGURED_GADGET);
ConfigContributor cc = control.createMock(ConfigContributor.class);
Capture<Map<String, Object>> captureConfig = new Capture<Map<String, Object>>();
cc.contribute(capture(captureConfig), eq(CONTAINER), eq(HOST));
expectLastCall().andAnswer(new IAnswer<Void>() {
@SuppressWarnings("unchecked")
public Void answer() throws Throwable {
Map<String, Object> config = (Map<String, Object>)getCurrentArguments()[0];
String f3Value = (String)config.get("reqfeature1");