Endow dict views with a proper length method.

1 files changed, 3 insertions, 0 deletions

diff --git a/Lib/test/test_dictviews.py b/Lib/test/test_dictviews.py
index 15c933f..c0c1da1 100644
--- a/Lib/test/test_dictviews.py
+++ b/Lib/test/test_dictviews.py
@@ -7,16 +7,19 @@ class DictSetTest(unittest.TestCase):
         d = {1: 10, "a": "ABC"}
         keys = d.KEYS()
         self.assertEqual(set(keys), {1, "a"})
+        self.assertEqual(len(keys), 2)
 
     def test_dict_items(self):
         d = {1: 10, "a": "ABC"}
         items = d.ITEMS()
         self.assertEqual(set(items), {(1, 10), ("a", "ABC")})
+        self.assertEqual(len(items), 2)
 
     def test_dict_values(self):
         d = {1: 10, "a": "ABC"}
         values = d.VALUES()
         self.assertEqual(set(values), {10, "ABC"})
+        self.assertEqual(len(values), 2)
 
 def test_main():
     test_support.run_unittest(DictSetTest)