<!doctype html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=719544
-->
<title>Test for Bug 719544</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=719544">Mozilla Bug 719544</a>
<script>

/** Test for Bug 719544 **/
var threw = false;
var origLength = document.childNodes.length;
try {
  var range = document.createRange();
  range.selectNodeContents(document);
  range.extractContents();
} catch(e) {
  threw = true;
  is(Object.getPrototypeOf(e), DOMException.prototype,
     "Must throw DOMException");
  is(e.name, "HierarchyRequestError", "Must throw HierarchyRequestError");
}
ok(threw, "Must throw");
is(document.childNodes.length, origLength, "Must preserve original children");

</script>
