如何在单元测试中使用Token来模拟认证

// tests/AppBundle/Controller/DefaultControllerTest.php
namespace Tests\Appbundle\Controller;
 
use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
use Symfony\Component\BrowserKit\Cookie;
use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
 
class DefaultControllerTest extends WebTestCase
{
    private $client = null;
 
    public function setUp()
    {
        $this->client = static::createClient();
    }
 
    public function testSecuredHello()
    {
        $this->logIn();
 
        $crawler = $this->client->request('GET', '/admin');
 
        $this->assertTrue($this->client->getResponse()->isSuccessful());
        $this->assertGreaterThan(0, $crawler->filter('html:contains("Admin Dashboard")')->count());
    }
 
    private function logIn()
    {
        $session = $this->client->getContainer()->get('session');
 
        // the firewall context (defaults to the firewall name)
        // 防火墙上下文（默认是防火墙名称）
        $firewall = 'secured_area';
 
        $token = new UsernamePasswordToken('admin', null, $firewall, array('ROLE_ADMIN'));
        $session->set('_security_'.$firewall, serialize($token));
        $session->save();
 
        $cookie = new Cookie($session->getName(), $session->getId());
        $this->client->getCookieJar()->set($cookie);
    }
}