public function testCascadeModel()
{
$user = new User(array('fullname' => 'Mukhamad Ikhsan', 'email' => '*****@*****.**', 'password' => 'rahasia'));
$this->assertTrue($user->save());
$group = new Group(array('name' => "Testing"));
$this->assertTrue($group->save());
$user->addGroup($group);
$this->assertTrue($user->save());
$this->assertEqual(1, count($user->groups));
$this->assertEqual(1, count($group->members));
$ikhsan = User::getRepository()->findOneBy(array('email' => '*****@*****.**'));
$testing = Group::getRepository()->findOneBy(array('name' => 'Testing'));
$this->assertEqual(1, count($ikhsan->groups));
$this->assertEqual(1, count($testing->members));
$user->delete();
$group->delete();
}