diff -r 000000000000 -r 6474c204b198 dom/tests/unit/test_bug465752.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/tests/unit/test_bug465752.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,28 @@
+/* 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/.
+ */
+
+function run_test()
+{
+  const ios = Components.classes["@mozilla.org/network/io-service;1"]
+                        .getService(Components.interfaces.nsIIOService);
+  const str = "javascript:10";
+  var uri = ios.newURI(str, null, null);
+  var uri2 = ios.newURI(str, null, null);
+  const str2 = "http://example.org";
+  var uri3 = ios.newURI(str2, null, null);
+  do_check_true(uri.equals(uri));
+  do_check_true(uri.equals(uri2));
+  do_check_true(uri2.equals(uri));
+  do_check_true(uri2.equals(uri2));
+  do_check_false(uri3.equals(uri2));
+  do_check_false(uri2.equals(uri3));
+
+  var simple = Components.classes["@mozilla.org/network/simple-uri;1"]
+                         .createInstance(Components.interfaces.nsIURI);
+  simple.spec = str;
+  do_check_eq(simple.spec, uri.spec);
+  do_check_false(simple.equals(uri));
+  do_check_false(uri.equals(simple));
+}