public static User getUtilisateurToutDroit() {
    User user = new User();
    user.setLogin("krack");

    Set<Role> roles = new HashSet<Role>();

    Role roleAuth = new Role();
    roleAuth.setRole(RoleEnum.ROLE_AUTHENTIFIER.toString());
    roles.add(roleAuth);

    Role roleForum = new Role();
    roleForum.setRole(RoleEnum.ROLE_ADMINISTRATEUR_FORUM.toString());
    roles.add(roleForum);

    user.setRoles(roles);
    return user;
  }
  public static User getUtilisateurSansDroit() {
    User user = new User();
    user.setLogin("loulou");

    return user;
  }