* Tests a message consisting only of operations, with no invocations.
*/
public void testOperationOnlyMessage() {
delayTestFinish(DELAY_TEST_FINISH);
RequestContext ctx = simpleFooRequest();
SimpleFooProxy proxy = ctx.create(SimpleFooProxy.class);
proxy.setUserName("GWT");
ctx.fire(new Receiver<Void>() {
@Override
public void onSuccess(Void response) {
finishTestAndReset();