2a)
public void loginWithCorrectUser(){
  User.newUser(UserTypes.EXISTENT).doLogin();
  Checker.check("LoggedIn", true);
}
2b)
public void testLogout(){
  User user1 = User.newUser(UserTypes.EXISTENT).doLogin();
  Checker.check("LoggedIn", true);
  user1.doLogout();
  Checker.check("LoggedIn", false);
  Checker.check("LoggedOut");