public function testClear() {
$storage = $this
->getStorage();
session_start();
$_SESSION['drak'] = 'loves symfony';
$storage
->getBag('attributes')
->set('symfony', 'greatness');
$key = $storage
->getBag('attributes')
->getStorageKey();
$this
->assertEquals($_SESSION[$key], array(
'symfony' => 'greatness',
));
$this
->assertEquals($_SESSION['drak'], 'loves symfony');
$storage
->clear();
$this
->assertEquals($_SESSION[$key], array());
$this
->assertEquals($_SESSION['drak'], 'loves symfony');
}