From 691d80532b0a0204e92de35ecba1472d87af6e94 Mon Sep 17 00:00:00 2001
From: Raymond Hettinger <python@rcn.com>
Date: Sun, 30 May 2004 07:26:47 +0000
Subject: Make sets and deques weak referencable.

---
 Lib/test/test_set.py | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'Lib/test/test_set.py')

diff --git a/Lib/test/test_set.py b/Lib/test/test_set.py
index 3a85c767a8..514b75c0d6 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 @@ class TestSet(TestJointOps):
             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
 
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