1 description('Tests that setting the .length on an HTMLSelectElement works in the presence of DOM mutation listeners that reorder option elements');
3 var wrapper = document.createElement('div');
4 document.body.appendChild(wrapper);
5 wrapper.innerHTML = '<select id="theSelect">' +
6 '<option id="a">a</option>' +
7 '<option id="b">b</option>' +
8 '<option id="c">c</option>' +
9 '<option id="d">d</option>' +
12 var sel = document.getElementById('theSelect');
14 var firstRemove = true;
15 function onRemove(e) {
17 // remove listener temporarily to avoid lots of nesting
18 sel.removeEventListener('DOMNodeRemoved', onRemove, false);
19 var lastOption = document.getElementById('d');
20 sel.removeChild(lastOption);
21 sel.insertBefore(lastOption, document.getElementById('c'));
23 sel.addEventListener('DOMNodeRemoved', onRemove, false);
27 sel.addEventListener('DOMNodeRemoved', onRemove, false);
28 sel.addEventListener('DOMNodeInserted', function() {}, false);
30 shouldBe('sel.length', '4');
32 shouldBe('sel.length', '2');
33 shouldBe('sel.options.item(0).id', '"a"');
34 shouldBe('sel.options.item(1).id', '"b"');