diff options
| -rw-r--r-- | Lib/test/test_posix.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/test/test_posix.py b/Lib/test/test_posix.py index 77f42f7f9c..444f8abe46 100644 --- a/Lib/test/test_posix.py +++ b/Lib/test/test_posix.py @@ -231,6 +231,9 @@ class PosixTester(unittest.TestCase): with self.assertRaises(TypeError, msg="Invalid arg was allowed"): # Ensure a combination of valid and invalid is an error. os.register_at_fork(before=None, after_in_parent=lambda: 3) + with self.assertRaises(TypeError, msg="At least one argument is required"): + # when no arg is passed + os.register_at_fork() with self.assertRaises(TypeError, msg="Invalid arg was allowed"): # Ensure a combination of valid and invalid is an error. os.register_at_fork(before=lambda: None, after_in_child='') |