1 files changed, 41 insertions, 0 deletions
diff --git a/js/xpconnect/tests/chrome/test_doublewrappedcompartments.xhtml b/js/xpconnect/tests/chrome/test_doublewrappedcompartments.xhtml
new file mode 100644
index 0000000000..dd8ddd1bef
--- /dev/null
+++ b/js/xpconnect/tests/chrome/test_doublewrappedcompartments.xhtml
@@ -0,0 +1,41 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css"
+                 type="text/css"?>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=533596
+-->
+<window title="Mozilla Bug 533596"
+  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+
+  <!-- test results are displayed in the html:body -->
+  <body xmlns="http://www.w3.org/1999/xhtml">
+
+  <iframe type="content"
+          src="http://example.org/tests/js/xpconnect/tests/mochitest/file_doublewrappedcompartments.html"
+          onload="go()"
+          id="ifr">
+  </iframe>
+  </body>
+
+  <!-- test code goes here -->
+  <script type="application/javascript"><![CDATA[
+      const utils = SpecialPowers.DOMWindowUtils;
+
+      function go() {
+        var wrappedWin = $('ifr').contentWindow;
+        is(typeof wrappedWin.expando, 'undefined', "Shouldn't be able to see the expando");
+
+        var unwrapped = wrappedWin.wrappedJSObject;
+
+        var expando = unwrapped.expando;
+        isnot(expando, 'undefined', 'properly wrapped');
+        is(typeof expando.querySelector, 'function', 'double wrapped');
+
+        SimpleTest.finish();
+      }
+
+      SimpleTest.waitForExplicitFinish();
+  ]]></script>
+</window>