Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Tip revision: 5c4568a05a0a62b5947c55f68f9f2ecfb90a4f12 authored by Ned Deily on 22 December 2016, 23:38:47 UTC
Update docs and patchlevel for 3.6.0 final.
Update docs and patchlevel for 3.6.0 final.
Tip revision: 5c4568a
test_anon.py
import unittest
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"]}))
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()