test that object has a __dir__() implementation

test that object has a dir() implementation
dac9aced · Benjamin Peterson · 04778a81 · dac9aced
Commit dac9aced authored May 25, 2011 by Benjamin Peterson
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Lib/test/test_builtin.py Lib/test/test_builtin.py +2 -0

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--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -385,6 +385,8 @@ class BuiltinTest(unittest.TestCase):
        except:
            self.assertEqual(len(dir(sys.exc_info()[2])), 4)

+        # test that object has a __dir__()
+        self.assertEqual(sorted([].__dir__()), dir([]))

    def test_divmod(self):
        self.assertEqual(divmod(12, 7), (1, 5))