diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_7/geniter/evens.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_7/geniter/evens.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,26 @@
+/* -*- 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     = "(none)";
+var summary = "Array comprehensions evens example from http://developer.mozilla.org/en/docs/New_in_JavaScript_1.7"
+var actual, expect;
+
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+function range(begin, end) {
+  for (let i = begin; i < end; ++i) {
+    yield i;
+  }
+}
+var evens = [i for (i in range(0, 21)) if (i % 2 == 0)];
+
+reportCompare("object", typeof evens, summary);
+reportCompare("0,2,4,6,8,10,12,14,16,18,20", "" + evens, summary);