third_party/blink/web_tests/dom/document_type/next-element-sibling.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <title>This tests the NonDocumentTypeChildNode interface nextElementSibling property on a DocumentType node</title>
 <script src="../../resources/testharness.js"></script>
 <script src="../../resources/testharnessreport.js"></script>
 <script>
 var doctype = document.doctype;
 assert_equals(doctype.nextElementSibling, undefined);
 done();
 </script>
	<!DOCTYPE html>
	<title>This tests the NonDocumentTypeChildNode interface nextElementSibling property on a DocumentType node</title>
	<script src="../../resources/testharness.js"></script>
	<script src="../../resources/testharnessreport.js"></script>
	<script>
	var doctype = document.doctype;
	assert_equals(doctype.nextElementSibling, undefined);
	done();
	</script>