public function testRevocableSession()
 {
     ParseClient::enableRevocableSessions();
     $user = new ParseUser();
     $user->setUsername("username");
     $user->setPassword("password");
     $user->signUp();
     $session = ParseSession::getCurrentSession();
     $this->assertEquals($user->getSessionToken(), $session->getSessionToken());
     $this->assertTrue($session->isCurrentSessionRevocable());
     ParseUser::logOut();
     ParseUser::logIn("username", "password");
     $session = ParseSession::getCurrentSession();
     $this->assertEquals(ParseUser::getCurrentUser()->getSessionToken(), $session->getSessionToken());
     $this->assertTrue($session->isCurrentSessionRevocable());
     $sessionToken = $session->getSessionToken();
     ParseUser::logOut();
     $this->setExpectedException('Parse\\ParseException', 'invalid session token');
     ParseUser::become($sessionToken);
 }