public function testFirstMethod()
{
$list = new LinkedList();
$list->add($this->first);
for ($list->rewind(); $list->valid(); $list->next()) {
$this->assertTrue($list->isFirst());
break;
}
return $list;
}
/**
* Overrides the parent method by enforcing a type on the parameter,
* making a type-safe list
*
* @param \Flat\Post
* An instance of the Post object
* @return bool
* True if the Post object was added to the list
*/
public function add(Post $post)
{
parent::add($post);
return true;
}
