public function testPropertyReferencesResolvedInMapping()
{
$identity = new SecretIdentity(array('realname' => 'Peter Parker'));
$hero = new Hero(array('alias' => 'Spider Man'));
// set the identityid before it's been saved, still null
$hero->identityid = $identity->id;
$identity->save();
$hero->save();
$this->assertEquals($identity->id, 1);
$this->assertEquals($hero->identityid, 1);
}