1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/js1_7/regress/regress-407957.js b/js/src/tests/js1_7/regress/regress-407957.js
new file mode 100644
index 000000000..ffd05bd42
--- /dev/null
+++ b/js/src/tests/js1_7/regress/regress-407957.js
@@ -0,0 +1,30 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 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 = 407957;
+var summary = 'Iterator is mutable.';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var obj           = {};
+  var saveIterator  = Iterator;
+
+  Iterator = obj;
+  reportCompare(obj, Iterator, summary);
+
+  exitFunc ('test');
+}