--TEST-- Check that SplDoublyLinkedList->isEmpty() returns an error message when a parameter is passed. --CREDITS-- PHPNW Testfest 2009 - Paul Court ( g@rgoyle.com ) --FILE-- <?php // Create a new Doubly Linked List $dll = new SplDoublyLinkedList(); var_dump($dll->isEmpty("test")); ?> --EXPECTF-- Warning: SplDoublyLinkedList::isEmpty() expects exactly 0 parameters, %d given in %s NULL