gecko-dev/widget/tests/bug586713_window.xhtml

<?xml version="1.0"?>

<!-- This Source Code Form is subject to the terms of the Mozilla Public
   - License, v. 2.0. If a copy of the MPL was not distributed with this
   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->

<?xml-stylesheet href="chrome://global/skin" type="text/css"?>

<window id="bug586713_window"
        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
        width="300"
        height="300"
        onload="onLoad();"
        title="Bug 586713 Test">

  <menubar id="nativemenubar">
    <menu id="foo" label="Foo">
      <menupopup>
        <menuitem label="FooItem0"/>
      </menupopup>
    </menu>
  </menubar>

  <script type="application/javascript"><![CDATA[
    function ok(condition, message) {
      window.arguments[0].SimpleTest.ok(condition, message);
    }

    function onTestsFinished() {
      window.close();
      window.arguments[0].SimpleTest.finish();
    }

    var fooCallCount = 0;
    function foo() {
      fooCallCount++;
      let instruction = document.createProcessingInstruction("xml-stylesheet", 'href="chrome://foo.css" type="text/css"');
      document.insertBefore(instruction, document.documentElement);
      if (fooCallCount == 2) {
        ok(true, "If we got here we didn't crash, excellent.");
        onTestsFinished();
      }
    }

    function onLoad() {
      foo();
      setTimeout(() => foo(), 0);
    }
  ]]></script>
</window>