<!DOCTYPE HTML>
<meta charset=utf-8>
<title>NamedNodeMap Test: Supported property names</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<div id="simple" class="fancy">Simple</div>
<input id="result" type="text" value="" width="200px">
<script>
test(function() {
var elt = document.querySelector('#simple');
assert_array_equals(Object.getOwnPropertyNames(elt.attributes),
['0','1','id','class']);
}, "Object.getOwnPropertyNames on NamedNodeMap");
test(function() {
var result = document.getElementById("result");
assert_array_equals(Object.getOwnPropertyNames(result.attributes),
['0','1','2','3','id','type','value','width']);
}, "Object.getOwnPropertyNames on NamedNodeMap of input");
test(function() {
var result = document.getElementById("result");
result.removeAttribute("width");
assert_array_equals(Object.getOwnPropertyNames(result.attributes),
['0','1','2','id','type','value']);
}, "Object.getOwnPropertyNames on NamedNodeMap after attribute removal");
</script>