public function testEquals()
{
$id1 = new Id(10);
$id2 = new Id(20);
$id3 = new Id(10);
$this->assertTrue($id1->equals($id3));
$this->assertFalse($id1->equals($id2));
}
/**
* 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();
}