public function testLastKeys()
{
$child1 = Boardgame::factory(array('name' => 'child1'));
$child2 = Boardgame::factory(array('name' => 'child2'));
$child3 = Boardgame::factory(array('name' => 'child3'));
$this->entity->add($child1, 'z');
$this->entity->add($child2, 'zz');
$this->entity->add($child3, 'a');
$this->assertSame($child3, $this->entity->last());
}
