mirror of https://github.com/python/cpython
63 lines
2.0 KiB
Python
63 lines
2.0 KiB
Python
import sys
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import types
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import unittest
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# bpo-46417: Test that structseq types used by the sys module are still
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# valid when Py_Finalize()/Py_Initialize() are called multiple times.
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class TestStructSeq(unittest.TestCase):
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# test PyTypeObject members
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def check_structseq(self, obj_type):
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# ob_refcnt
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self.assertGreaterEqual(sys.getrefcount(obj_type), 1)
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# tp_base
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self.assertTrue(issubclass(obj_type, tuple))
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# tp_bases
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self.assertEqual(obj_type.__bases__, (tuple,))
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# tp_dict
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self.assertIsInstance(obj_type.__dict__, types.MappingProxyType)
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# tp_mro
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self.assertEqual(obj_type.__mro__, (obj_type, tuple, object))
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# tp_name
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self.assertIsInstance(type.__name__, str)
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# tp_subclasses
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self.assertEqual(obj_type.__subclasses__(), [])
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def test_sys_attrs(self):
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for attr_name in (
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'flags', # FlagsType
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'float_info', # FloatInfoType
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'hash_info', # Hash_InfoType
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'int_info', # Int_InfoType
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'thread_info', # ThreadInfoType
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'version_info', # VersionInfoType
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):
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with self.subTest(attr=attr_name):
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attr = getattr(sys, attr_name)
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self.check_structseq(type(attr))
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def test_sys_funcs(self):
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func_names = ['get_asyncgen_hooks'] # AsyncGenHooksType
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if hasattr(sys, 'getwindowsversion'):
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func_names.append('getwindowsversion') # WindowsVersionType
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for func_name in func_names:
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with self.subTest(func=func_name):
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func = getattr(sys, func_name)
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obj = func()
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self.check_structseq(type(obj))
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try:
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unittest.main(
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module=(
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'__main__'
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if __name__ == '__main__'
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# Avoiding a circular import:
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else sys.modules['test._test_embed_structseq']
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)
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)
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except SystemExit as exc:
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if exc.args[0] != 0:
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raise
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print("Tests passed")
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