FieldLabel fl = newInstance(FieldLabel.class, "field", field,
"location", l, "prerender", true);
expect(cycle.renderStackPush(fl)).andReturn(fl);
trainGetForm(cycle, form);
form.prerenderField(writer, field, l);
trainIsRewinding(cycle, true);
expect(cycle.renderStackPop()).andReturn(fl);
replay();