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Diffstat (limited to 'Lib/test/test_sys.py')
| -rw-r--r-- | Lib/test/test_sys.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py index 6933b41..336ae44 100644 --- a/Lib/test/test_sys.py +++ b/Lib/test/test_sys.py @@ -852,6 +852,9 @@ class SysModuleTest(unittest.TestCase): check(-1<<1000, [traceback[-1]]) check(None, traceback) + def test_no_duplicates_in_meta_path(self): + self.assertEqual(len(sys.meta_path), len(set(sys.meta_path))) + @test.support.cpython_only class SizeofTest(unittest.TestCase): |