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<!doctype html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=719518
-->
<title>Test for Bug 719518</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=719518">Mozilla Bug 719518</a>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test">
<script>
var thrown = false;
try {
  getSelection().extend(document.body, 0);
} catch(e) {
  thrown = true;
  is(e.name, "InvalidStateError",
     "Need to throw InvalidStateError for extend() with no ranges");
  ok(e instanceof DOMException,
     "Need to throw DOMException for extend() with no ranges");
  is(e.code, DOMException.INVALID_STATE_ERR,
     "Need to throw INVALID_STATE_ERR for extend() with no ranges");
}
ok(thrown, "Need to throw exception for extend() with no ranges");
</script>