### Question:
PermissionService { public PermissionRespDto findPermissionDetail(int id) { Optional<Permission> permission = this.permissionRepository.findById(id); if (permission.isPresent()) { return buildPermissionDto(permission.get()); } return null; }  @Transactional boolean savePermission(PermissionReqDto permissionReqDto); @Transactional boolean deletePermission(int id); @Transactional boolean changePermissionStatus(int id, boolean active); @Transactional boolean updatePermission(int id, PermissionReqDto permissionReqDto); PermissionRespDto findPermissionDetail(int id); List<PermissionRespDto> findAll(String name);  }### Answer:
@Test public void findPermissionDetail() throws Exception { }