diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_warnings.py | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Lib/test/test_warnings.py b/Lib/test/test_warnings.py index dbf30e9..79be835 100644 --- a/Lib/test/test_warnings.py +++ b/Lib/test/test_warnings.py @@ -542,6 +542,18 @@ class _WarningsTests(BaseTest): assert expected_line self.assertEqual(second_line, expected_line) + def test_filename_none(self): + # issue #12467: race condition if a warning is emitted at shutdown + globals_dict = globals() + oldfile = globals_dict['__file__'] + try: + with original_warnings.catch_warnings(module=self.module) as w: + self.module.filterwarnings("always", category=UserWarning) + globals_dict['__file__'] = None + original_warnings.warn('test', UserWarning) + finally: + globals_dict['__file__'] = oldfile + class WarningsDisplayTests(unittest.TestCase): |