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import unittest
from ctypes import *
from ctypes.test import need_symbol
class CHECKED(c_int):
def _check_retval_(value):
# Receives a CHECKED instance.
return str(value.value)
_check_retval_ = staticmethod(_check_retval_)
class Test(unittest.TestCase):
def test_checkretval(self):
import _ctypes_test
dll = CDLL(_ctypes_test.__file__)
self.assertEqual(42, dll._testfunc_p_p(42))
dll._testfunc_p_p.restype = CHECKED
self.assertEqual("42", dll._testfunc_p_p(42))
dll._testfunc_p_p.restype = None
self.assertEqual(None, dll._testfunc_p_p(42))
del dll._testfunc_p_p.restype
self.assertEqual(42, dll._testfunc_p_p(42))
@need_symbol('oledll')
def test_oledll(self):
self.assertRaises(WindowsError,
oledll.oleaut32.CreateTypeLib2,
0, None, None)
if __name__ == "__main__":
unittest.main()
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