Neos\Flow\Security\Authentication\Token\AbstractToken::isAuthenticated PHP Method

    public function isAuthenticated()
    {
        return $this->authenticationStatus === self::AUTHENTICATION_SUCCESSFUL;
    }

 /**
  * @test
  * @dataProvider authenticationStatusAndIsAuthenticated
  */
 public function isAuthenticatedReturnsTheCorrectValueForAGivenStatus($status, $isAuthenticated)
 {
     $this->token->setAuthenticationStatus($status);
     $this->assertEquals($isAuthenticated, $this->token->isAuthenticated());
     $this->token->setAuthenticationStatus($status);
     $this->assertEquals($isAuthenticated, $this->token->isAuthenticated());
     $this->token->setAuthenticationStatus($status);
     $this->assertEquals($isAuthenticated, $this->token->isAuthenticated());
     $this->token->setAuthenticationStatus($status);
     $this->assertEquals($isAuthenticated, $this->token->isAuthenticated());
 }