### Question:
SocialRequestItem extends BaseRequestItem { public GroupId getGroup() { return GroupId.fromJson(getParameter(GROUP_ID, "@self")); } SocialRequestItem(Map<String, String[]> parameters,
      SecurityToken token, BeanConverter converter, BeanJsonConverter jsonConverter);  SocialRequestItem(JSONObject parameters, Map<String, FormDataItem> formItems,
      SecurityToken token, BeanConverter converter, BeanJsonConverter jsonConverter); Set<UserId> getUsers(); GroupId getGroup(); String getSortBy();  }### Answer:
@Test public void testGetGroup() throws Exception { request.setParameter("groupId", "@self"); assertEquals(GroupId.Type.self, request.getGroup().getType()); }