LayoutTests/fast/forms/select-set-length-with-mutation-remove.html - WebKit - Git at Google

 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
 <html>
 <head>
 <script src="../../resources/js-test-pre.js"></script>
 </head>
 <body>
 <p id="description"></p>
 <div id="console"></div>
 <script>
 description('Tests that setting .length on an HTMLSelectElement works in the presence of mutation listeners that remove option elements.');

 function onRemove(e) {
     if (e.target.nextSibling != null) {
         // remove listener temporarily to avoid lots of nesting
         sel.removeEventListener('DOMNodeRemoved', onRemove, false);
         e.target.nextSibling.parentNode.removeChild(e.target.nextSibling);
         sel.addEventListener('DOMNodeRemoved', onRemove, false);
     }
     gc();
 }

 var sel = document.createElement('select');
 document.body.appendChild(sel);

 sel.addEventListener('DOMNodeRemoved', onRemove, false);
 sel.addEventListener('DOMNodeInserted', function() {}, false);

 sel.length = 200;
 shouldBe('sel.length', '200');

 sel.length = 100;
 shouldBe('sel.length', '100');

 sel.length = 180;
 shouldBe('sel.length', '180');
 </script>
 <script src="../../resources/js-test-post.js"></script>
 </body>
 </html>
	<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
	<html>
	<head>
	<script src="../../resources/js-test-pre.js"></script>
	</head>
	<body>
	<p id="description"></p>
	<div id="console"></div>
	<script>
	description('Tests that setting .length on an HTMLSelectElement works in the presence of mutation listeners that remove option elements.');

	function onRemove(e) {
	if (e.target.nextSibling != null) {
	// remove listener temporarily to avoid lots of nesting
	sel.removeEventListener('DOMNodeRemoved', onRemove, false);
	e.target.nextSibling.parentNode.removeChild(e.target.nextSibling);
	sel.addEventListener('DOMNodeRemoved', onRemove, false);
	}
	gc();
	}

	var sel = document.createElement('select');
	document.body.appendChild(sel);

	sel.addEventListener('DOMNodeRemoved', onRemove, false);
	sel.addEventListener('DOMNodeInserted', function() {}, false);

	sel.length = 200;
	shouldBe('sel.length', '200');

	sel.length = 100;
	shouldBe('sel.length', '100');

	sel.length = 180;
	shouldBe('sel.length', '180');
	</script>
	<script src="../../resources/js-test-post.js"></script>
	</body>
	</html>