chromium/third_party/blink/web_tests/external/wpt/html/webappapis/dynamic-markup-insertion/document-write/018.html

<!doctype html>
<title>document.write</title>
<script src="/resources/testharness.js"></script><script src="/resources/testharnessreport.js"></script>
<script>
test(
function() {
  document.write("<body>");
  var s = "<!--comment--><i>Filler Text</i>"
  for (var i=0; i<s.length; i++) {
    document.write(s[i]);
  }
  assert_equals(document.body.firstChild.nodeType, document.COMMENT_NODE);
  assert_equals(document.body.firstChild.data, "comment");
  assert_equals(document.body.childNodes[1].localName, "i");
  assert_equals(document.body.childNodes[1].textContent, "Filler Text");
}
);
</script>
<div id="log"></div>