python (3.11.7)
1 import sys
2 import types
3 import unittest
4
5
6 # bpo-46417: Test that structseq types used by the sys module are still
7 # valid when Py_Finalize()/Py_Initialize() are called multiple times.
8 class ESC[4;38;5;81mTestStructSeq(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
9 # test PyTypeObject members
10 def check_structseq(self, obj_type):
11 # ob_refcnt
12 self.assertGreaterEqual(sys.getrefcount(obj_type), 1)
13 # tp_base
14 self.assertTrue(issubclass(obj_type, tuple))
15 # tp_bases
16 self.assertEqual(obj_type.__bases__, (tuple,))
17 # tp_dict
18 self.assertIsInstance(obj_type.__dict__, types.MappingProxyType)
19 # tp_mro
20 self.assertEqual(obj_type.__mro__, (obj_type, tuple, object))
21 # tp_name
22 self.assertIsInstance(type.__name__, str)
23 # tp_subclasses
24 self.assertEqual(obj_type.__subclasses__(), [])
25
26 def test_sys_attrs(self):
27 for attr_name in (
28 'flags', # FlagsType
29 'float_info', # FloatInfoType
30 'hash_info', # Hash_InfoType
31 'int_info', # Int_InfoType
32 'thread_info', # ThreadInfoType
33 'version_info', # VersionInfoType
34 ):
35 with self.subTest(attr=attr_name):
36 attr = getattr(sys, attr_name)
37 self.check_structseq(type(attr))
38
39 def test_sys_funcs(self):
40 func_names = ['get_asyncgen_hooks'] # AsyncGenHooksType
41 if hasattr(sys, 'getwindowsversion'):
42 func_names.append('getwindowsversion') # WindowsVersionType
43 for func_name in func_names:
44 with self.subTest(func=func_name):
45 func = getattr(sys, func_name)
46 obj = func()
47 self.check_structseq(type(obj))
48
49
50 try:
51 unittest.main()
52 except SystemExit as exc:
53 if exc.args[0] != 0:
54 raise
55 print("Tests passed")
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