third_party/web_platform_tests/dom/nodes/CharacterData-remove.html

<!DOCTYPE html>
<meta charset=utf-8>
<title>CharacterData.remove</title>
<link rel=help href="https://dom.spec.whatwg.org/#dom-childnode-remove">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="ChildNode-remove.js"></script>
<div id=log></div>
<script>
var text, text_parent,
    comment, comment_parent,
    pi, pi_parent;
setup(function() {
  text = document.createTextNode("text");
  text_parent = document.createElement("div");
  comment = document.createComment("comment");
  comment_parent = document.createElement("div");
  pi = document.createProcessingInstruction("foo", "bar");
  pi_parent = document.createElement("div");
});
testRemove(text, text_parent, "text");
testRemove(comment, comment_parent, "comment");
testRemove(pi, pi_parent, "PI");
</script>