public function testGetAuthorizationCode()
 {
     $session = $this->createSessionStub();
     $client = $this->createClientStub();
     $this->manager->setTokenGenerator($this->createTokenGeneratorStub());
     $authorizationCode = $this->manager->createAuthorizationCode($session, $client);
     $loadedCode = $this->manager->getAuthorizationCode($authorizationCode->getCode());
     $this->assertEquals($loadedCode->toArray(), $authorizationCode->toArray());
 }