diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_7/geniter/simple-fib.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_7/geniter/simple-fib.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER     = 326466;  // bug 326466, comment 1
+var summary = "Simple Fibonacci iterator";
+var actual, expect;
+
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+function fib()
+{
+  var a = 0, b = 1;
+  while (true)
+  {
+    yield a;
+    var t = a;
+    a = b;
+    b += t;
+  }
+}
+
+var failed = false;
+
+try
+{
+  var g = fib();
+
+  if (g.next() != 0)
+    throw "F_0 = 0";
+  if (g.next() != 1)
+    throw "F_1 = 1";
+  if (g.next() != 1)
+    throw "F_2 = 1";
+  if (g.next() != 2)
+    throw "F_3 = 2";
+}
+catch (e)
+{
+  failed = e;
+}
+
+
+
+expect = false;
+actual = failed;
+
+reportCompare(expect, actual, summary);