### Question:
GroupRepositoryIbatis extends SqlMapClientTemplate implements GroupRepository { public Boolean removeGroup(Integer id) { return delete("deleteGroup", id) == 1; }  @Autowired @Override void setSqlMapClient(@Qualifier("sqlMapClient") SqlMapClient sqlMapClient); @SuppressWarnings("unchecked") List<GroupDTO> getUserGroupsWithAutorities(String username); Boolean hasUsers(Integer id); @SuppressWarnings("unchecked") List<String> getGroupUsernames(Integer id); Boolean deleteUserGroups(String username); @SuppressWarnings("unchecked") List<GroupDTO> getFreeGroups(String username); GroupDTO getGroup(Integer id); @SuppressWarnings("unchecked") List<GroupDTO> getGroups(); Boolean saveGroups(final String username, final List<Integer> groups); @SuppressWarnings("unchecked") List<GroupDTO> getGroups(Pager pager); Integer getGroupsNumber(); @SuppressWarnings("unchecked") List<GroupDTO> getUserGroups(String username); Boolean removeGroup(Integer id); Boolean save(GroupDTO group);  }### Answer:
@Test public void deleteGroup() { assertTrue(repo.removeGroup(3)); }