1 files changed, 18 insertions, 0 deletions
diff --git a/Lib/test/test_dumbdbm.py b/Lib/test/test_dumbdbm.py
index 63b14b0..e5dfe1d 100644
--- a/Lib/test/test_dumbdbm.py
+++ b/Lib/test/test_dumbdbm.py
@@ -38,6 +38,24 @@ class DumbDBMTestCase(unittest.TestCase):
         self.read_helper(f)
         f.close()
 
+    def test_dumbdbm_creation_mode(self):
+        # On platforms without chmod, don't do anything.
+        if not (hasattr(os, 'chmod') and hasattr(os, 'umask')):
+            return
+
+        try:
+            old_umask = os.umask(0002)
+            f = dumbdbm.open(_fname, 'c', 0637)
+            f.close()
+        finally:
+            os.umask(old_umask)
+            
+        import stat
+        st = os.stat(_fname + '.dat')
+        self.assertEqual(stat.S_IMODE(st.st_mode), 0635)
+        st = os.stat(_fname + '.dir')
+        self.assertEqual(stat.S_IMODE(st.st_mode), 0635)
+        
     def test_close_twice(self):
         f = dumbdbm.open(_fname)
         f['a'] = 'b'