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📁 ..
📄 __init__.py(399 B)
📄 __main__.py(68 B)
📁 __pycache__
📄 test_anon.py(2.48 KB)
📄 test_array_in_pointer.py(1.7 KB)
📄 test_arrays.py(7.33 KB)
📄 test_as_parameter.py(6.76 KB)
📄 test_bitfields.py(9.98 KB)
📄 test_buffers.py(2.55 KB)
📄 test_bytes.py(1.94 KB)
📄 test_byteswap.py(11.14 KB)
📄 test_callbacks.py(10.33 KB)
📄 test_cast.py(3.64 KB)
📄 test_cfuncs.py(7.5 KB)
📄 test_checkretval.py(968 B)
📄 test_delattr.py(533 B)
📄 test_errno.py(2.12 KB)
📄 test_find.py(4.33 KB)
📄 test_frombuffer.py(5.09 KB)
📄 test_funcptr.py(3.93 KB)
📄 test_functions.py(12.26 KB)
📄 test_incomplete.py(1023 B)
📄 test_init.py(1.01 KB)
📄 test_internals.py(2.57 KB)
📄 test_keeprefs.py(3.96 KB)
📄 test_libc.py(1005 B)
📄 test_loading.py(6.91 KB)
📄 test_macholib.py(2.07 KB)
📄 test_memfunctions.py(3.22 KB)
📄 test_numbers.py(9.3 KB)
📄 test_objects.py(1.64 KB)
📄 test_parameters.py(9.35 KB)
📄 test_pep3118.py(8.32 KB)
📄 test_pickling.py(2.17 KB)
📄 test_pointers.py(7.07 KB)
📄 test_prototypes.py(6.68 KB)
📄 test_python_api.py(2.8 KB)
📄 test_random_things.py(2.77 KB)
📄 test_refcounts.py(2.52 KB)
📄 test_repr.py(842 B)
📄 test_returnfuncptrs.py(2.83 KB)
📄 test_simplesubclasses.py(1.26 KB)
📄 test_sizes.py(804 B)
📄 test_slicing.py(5.88 KB)
📄 test_stringptr.py(2.48 KB)
📄 test_strings.py(7.13 KB)
📄 test_struct_fields.py(2.36 KB)
📄 test_structures.py(26.57 KB)
📄 test_unaligned_structures.py(1.11 KB)
📄 test_unicode.py(1.95 KB)
📄 test_values.py(3.78 KB)
📄 test_varsize_struct.py(1.8 KB)
📄 test_win32.py(4.91 KB)
📄 test_wintypes.py(1.36 KB)

Editing: test_anon.py

import unittest
import test.support
from ctypes import *

class AnonTest(unittest.TestCase):

def test_anon(self):
        class ANON(Union):
            _fields_ = [("a", c_int),
                        ("b", c_int)]

class Y(Structure):
            _fields_ = [("x", c_int),
                        ("_", ANON),
                        ("y", c_int)]
            _anonymous_ = ["_"]

self.assertEqual(Y.a.offset, sizeof(c_int))
        self.assertEqual(Y.b.offset, sizeof(c_int))

self.assertEqual(ANON.a.offset, 0)
        self.assertEqual(ANON.b.offset, 0)

def test_anon_nonseq(self):
        # TypeError: _anonymous_ must be a sequence
        self.assertRaises(TypeError,
                              lambda: type(Structure)("Name",
                                                      (Structure,),
                                                      {"_fields_": [], "_anonymous_": 42}))

def test_anon_nonmember(self):
        # AttributeError: type object 'Name' has no attribute 'x'
        self.assertRaises(AttributeError,
                              lambda: type(Structure)("Name",
                                                      (Structure,),
                                                      {"_fields_": [],
                                                       "_anonymous_": ["x"]}))

@test.support.cpython_only
    def test_issue31490(self):
        # There shouldn't be an assertion failure in case the class has an
        # attribute whose name is specified in _anonymous_ but not in _fields_.

# AttributeError: 'x' is specified in _anonymous_ but not in _fields_
        with self.assertRaises(AttributeError):
            class Name(Structure):
                _fields_ = []
                _anonymous_ = ["x"]
                x = 42

def test_nested(self):
        class ANON_S(Structure):
            _fields_ = [("a", c_int)]

class ANON_U(Union):
            _fields_ = [("_", ANON_S),
                        ("b", c_int)]
            _anonymous_ = ["_"]

class Y(Structure):
            _fields_ = [("x", c_int),
                        ("_", ANON_U),
                        ("y", c_int)]
            _anonymous_ = ["_"]

self.assertEqual(Y.x.offset, 0)
        self.assertEqual(Y.a.offset, sizeof(c_int))
        self.assertEqual(Y.b.offset, sizeof(c_int))
        self.assertEqual(Y._.offset, sizeof(c_int))
        self.assertEqual(Y.y.offset, sizeof(c_int) * 2)

if __name__ == "__main__":
    unittest.main()

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