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Diffstat (limited to 'Lib/test/test_capi.py')
| -rw-r--r-- | Lib/test/test_capi.py | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Lib/test/test_capi.py b/Lib/test/test_capi.py index 5f78c33702..db26b9b5dd 100644 --- a/Lib/test/test_capi.py +++ b/Lib/test/test_capi.py @@ -762,6 +762,37 @@ class SubinterpreterTest(unittest.TestCase): self.assertFalse(hasattr(binascii.Error, "foobar")) + def test_module_state_shared_in_global(self): + """ + bpo-44050: Extension module state should be shared between interpreters + when it doesn't support sub-interpreters. + """ + r, w = os.pipe() + self.addCleanup(os.close, r) + self.addCleanup(os.close, w) + + script = textwrap.dedent(f""" + import importlib.machinery + import importlib.util + import os + + fullname = '_test_module_state_shared' + origin = importlib.util.find_spec('_testmultiphase').origin + loader = importlib.machinery.ExtensionFileLoader(fullname, origin) + spec = importlib.util.spec_from_loader(fullname, loader) + module = importlib.util.module_from_spec(spec) + attr_id = str(id(module.Error)).encode() + + os.write({w}, attr_id) + """) + exec(script) + main_attr_id = os.read(r, 100) + + ret = support.run_in_subinterp(script) + self.assertEqual(ret, 0) + subinterp_attr_id = os.read(r, 100) + self.assertEqual(main_attr_id, subinterp_attr_id) + class TestThreadState(unittest.TestCase): |