third_party/web_platform_tests/selection/interfaces.html

<!doctype html>
<title>Selection interface tests</title>
<div id=log></div>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=/resources/WebIDLParser.js></script>
<script src=/resources/idlharness.js></script>
<script type=text/plain>
interface Selection {
  readonly attribute Node? anchorNode;
  readonly attribute unsigned long anchorOffset;
  readonly attribute Node? focusNode;
  readonly attribute unsigned long focusOffset;

  readonly attribute boolean isCollapsed;
  void               collapse(Node node, unsigned long offset);
  void               collapseToStart();
  void               collapseToEnd();

  void               extend(Node node, unsigned long offset);

  void               selectAllChildren(Node node);
  void               deleteFromDocument();

  readonly attribute unsigned long rangeCount;
  Range              getRangeAt(unsigned long index);
  void               addRange(Range range);
  void               removeRange(Range range);
  void               removeAllRanges();

  stringifier;
};
</script>
<script>
"use strict";

var idlArray = new IdlArray();
idlArray.add_idls(document.querySelector("script[type=text\\/plain]").textContent);
idlArray.add_objects({Selection: ['getSelection()']});
idlArray.test();
</script>