@BeforeClass
public void init() {
emf = Persistence.createEntityManagerFactory("pgPuTest");
em = emf.createEntityManager();
cargoService = new CargoServiceImpl();
enderecoService = new EnderecoServiceImpl();
usuarioService = new UsuarioServiceImpl();
grupoUsuarioService = new GrupoUsuarioServiceImpl();
colaboradorService = new ColaboradorServiceImpl();
cidadeService = new CidadeServiceImpl();
estadoService = new EstadoServiceImpl();