diff --git a/Lib/test/test_deque.py b/Lib/test/test_deque.py
index bad8857..13800ea 100644
--- a/Lib/test/test_deque.py
+++ b/Lib/test/test_deque.py
@@ -1,6 +1,7 @@
 from collections import deque
 import unittest
 from test import test_support
+from weakref import proxy
 import copy
 import cPickle as pickle
 from cStringIO import StringIO
@@ -435,6 +436,12 @@
         self.assertEqual(type(d), type(e))
         self.assertEqual(list(d), list(e))
 
+    def test_weakref(self):
+        d = deque('gallahad')
+        p = proxy(d)
+        self.assertEqual(str(p), str(d))
+        d = None
+        self.assertRaises(ReferenceError, str, p)
 
 #==============================================================================
 
diff --git a/Lib/test/test_set.py b/Lib/test/test_set.py
index 3a85c76..514b75c 100644
--- a/Lib/test/test_set.py
+++ b/Lib/test/test_set.py
@@ -1,5 +1,6 @@
 import unittest
 from test import test_support
+from weakref import proxy
 import operator
 import copy
 import pickle
@@ -346,6 +347,13 @@
             else:
                 self.assert_(c not in self.s)
 
+    def test_weakref(self):
+        s = self.thetype('gallahad')
+        p = proxy(s)
+        self.assertEqual(str(p), str(s))
+        s = None
+        self.assertRaises(ReferenceError, str, p)
+
 class SetSubclass(set):
     pass