public function testValid()
{
$id = new Id(10);
$this->assertEquals(10, $id->get());
$this->assertEquals('10', (string) $id);
}
/**
* This method is final on purpose isn't supposed to be override, instead add a exists()
*
* @param Id $id
*
* @return bool
*/
public final function existsInternal(Id $id)
{
return array_key_exists($id->get(), $this->items);
}
/**
* @param Id $id
*
* @return bool
*/
public function equals(Id $id)
{
return $this->get() === $id->get();
}
