/**
* @param mixed $value
*
* @return $this
*/
public function add($value)
{
if (!$value instanceof NodeInterface) {
throw new InvalidArgumentException("The specified value does not implement NodeInterface");
}
return parent::add($value);
}
public function testSortOnDesc()
{
$coll = new Collection([2, 3, 1]);
$result = $coll->sortOn(function ($item) {
return $item;
}, s\DESC);
$this->assertEquals([3, 2, 1], $coll->getAll());
$this->assertSame($coll, $result);
}
/**
* @param mixed $value
*/
protected function addItem($value)
{
parent::add($value);
}
