document.title-not-in-html-svg.html

<!DOCTYPE html>
<link rel="author" title="Rob Buis" href="mailto:[email protected]">
<link rel="help" href="https://html.spec.whatwg.org/multipage/#document.title">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<script>

function newXMLDocument() {
  return document.implementation.createDocument(null, "foo", null);
}

test(function() {
  var doc = newXMLDocument();
  assert_equals(doc.title, "");
  doc.title = "fail";
  assert_equals(doc.title, "");
}, "Should not be able to set document title in XML document");

test(function() {
  var doc = newXMLDocument();
  doc.documentElement.appendChild(document.createElementNS("http://www.w3.org/1999/xhtml", "html:title"));
  assert_equals(doc.title, "");
  doc.title = "fail";
  assert_equals(doc.title, "");
}, "Should not be able to set document title in XML document with html:title element");
</script>

chromium/third_party/blink/web_tests/external/wpt/html/dom/documents/dom-tree-accessors/document.title-not-in-html-svg.html