<!DOCTYPE html>
<html>
<body>
<script src="../../../resources/js-test-pre.js"></script>
<script>

description('Test calling createAttributeNS with undefined as the namespace URI. It should treat it as null.');

evalAndLog('element = document.createElement("div"); attr = document.createAttributeNS(undefined, "foo")');
shouldBeNull('attr.prefix');
shouldBeEqualToString('attr.localName', 'foo');
shouldBeNull('attr.namespaceURI');
shouldBeNull('element.getAttributeNodeNS(null, "foo")');
shouldBe('element.setAttributeNode(attr); element.getAttributeNodeNS(null, "foo")', 'attr');

</script>
<script src="../../../resources/js-test-post.js"></script>
</body>
</html>