function testEmptySessionHash()
{
$cm = new MockCookieManager($this);
$userAnonymous = new MockUser($this);
$dao = new MockUserDao($this);
$um = new UserManagerTestVersion($this);
$userAnonymous->setReturnValue('getId', 0);
$userAnonymous->setReturnValue('isAnonymous', true);
$cm->setReturnValue('getCookie', '');
$um->setReturnReference('getDao', $dao);
$um->setReturnReference('_getCookieManager', $cm);
$um->setReturnReference('getUserInstanceFromRow', $userAnonymous, array(array('user_id' => 0)));
//expect that the user is cached
$um->expectOnce('getUserInstanceFromRow');
$user = $um->getCurrentUser();
$this->assertTrue($user->isAnonymous(), 'An empty session hash gives an anonymous user');
$this->assertReference($user, $um->getUserById($user->getId()));
}
