diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py index e9b0652ab0d..50b583162ed 100644 --- a/Lib/test/test_os.py +++ b/Lib/test/test_os.py @@ -43,6 +43,13 @@ class FileTests(unittest.TestCase): os.closerange(first, first + 2) self.assertRaises(OSError, os.write, first, "a") + def test_rename(self): + path = support.TESTFN + old = sys.getrefcount(path) + self.assertRaises(TypeError, os.rename, path, 0) + new = sys.getrefcount(path) + self.assertEqual(old, new) + class TemporaryFileTests(unittest.TestCase): def setUp(self): self.files = []