1 files changed, 12 insertions, 0 deletions
diff --git a/Lib/test/test_enumerate.py b/Lib/test/test_enumerate.py
index 4398f84..e38389a 100644
--- a/Lib/test/test_enumerate.py
+++ b/Lib/test/test_enumerate.py
@@ -204,6 +204,18 @@ class TestReversed(unittest.TestCase):
                 self.fail("non-callable __reversed__ didn't raise!")
         self.assertEqual(rc, sys.getrefcount(r))
 
+    def test_objmethods(self):
+        # Objects must have __len__() and __getitem__() implemented.
+        class NoLen(object):
+            def __getitem__(self): return 1
+        nl = NoLen()
+        self.assertRaises(TypeError, reversed, nl)
+
+        class NoGetItem(object):
+            def __len__(self): return 2
+        ngi = NoGetItem()
+        self.assertRaises(TypeError, reversed, ngi)
+
 
 class EnumerateStartTestCase(EnumerateTestCase):