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__pycache__	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
__init__.py	399 B	-rw-r--r--	2021-09-24 12:03
__main__.py	68 B	-rw-r--r--	2021-09-24 12:03
test_anon.py	2 KB	-rw-r--r--	2021-09-24 12:03
test_array_in_pointer.py	1.7 KB	-rw-r--r--	2021-09-24 12:03
test_arrays.py	5.64 KB	-rw-r--r--	2021-09-24 12:03
test_as_parameter.py	6.61 KB	-rw-r--r--	2021-09-24 12:03
test_bitfields.py	9.84 KB	-rw-r--r--	2021-09-24 12:03
test_buffers.py	2.23 KB	-rw-r--r--	2021-09-24 12:03
test_bytes.py	1.88 KB	-rw-r--r--	2021-09-24 12:03
test_byteswap.py	11.14 KB	-rw-r--r--	2021-09-24 12:03
test_callbacks.py	9.31 KB	-rw-r--r--	2021-09-24 12:03
test_cast.py	3.11 KB	-rw-r--r--	2021-09-24 12:03
test_cfuncs.py	7.5 KB	-rw-r--r--	2021-09-24 12:03
test_checkretval.py	968 B	-rw-r--r--	2021-09-24 12:03
test_delattr.py	533 B	-rw-r--r--	2021-09-24 12:03
test_errno.py	2.25 KB	-rw-r--r--	2021-09-24 12:03
test_find.py	2.1 KB	-rw-r--r--	2021-09-24 12:03
test_frombuffer.py	4.59 KB	-rw-r--r--	2021-09-24 12:03
test_funcptr.py	3.82 KB	-rw-r--r--	2021-09-24 12:03
test_functions.py	12.26 KB	-rw-r--r--	2021-09-24 12:03
test_incomplete.py	1023 B	-rw-r--r--	2021-09-24 12:03
test_init.py	1.01 KB	-rw-r--r--	2021-09-24 12:03
test_internals.py	2.57 KB	-rw-r--r--	2021-09-24 12:03
test_keeprefs.py	3.96 KB	-rw-r--r--	2021-09-24 12:03
test_libc.py	1005 B	-rw-r--r--	2021-09-24 12:03
test_loading.py	4.52 KB	-rw-r--r--	2021-09-24 12:03
test_macholib.py	1.79 KB	-rw-r--r--	2021-09-24 12:03
test_memfunctions.py	3.22 KB	-rw-r--r--	2021-09-24 12:03
test_numbers.py	9.07 KB	-rw-r--r--	2021-09-24 12:03
test_objects.py	1.64 KB	-rw-r--r--	2021-09-24 12:03
test_parameters.py	6.05 KB	-rw-r--r--	2021-09-24 12:03
test_pep3118.py	7.65 KB	-rw-r--r--	2021-09-24 12:03
test_pickling.py	2.17 KB	-rw-r--r--	2021-09-24 12:03
test_pointers.py	6.95 KB	-rw-r--r--	2021-09-24 12:03
test_prototypes.py	6.68 KB	-rw-r--r--	2021-09-24 12:03
test_python_api.py	2.8 KB	-rw-r--r--	2021-09-24 12:03
test_random_things.py	2.76 KB	-rw-r--r--	2021-09-24 12:03
test_refcounts.py	2.52 KB	-rw-r--r--	2021-09-24 12:03
test_repr.py	842 B	-rw-r--r--	2021-09-24 12:03
test_returnfuncptrs.py	2.83 KB	-rw-r--r--	2021-09-24 12:03
test_simplesubclasses.py	1.26 KB	-rw-r--r--	2021-09-24 12:03
test_sizes.py	815 B	-rw-r--r--	2021-09-24 12:03
test_slicing.py	5.88 KB	-rw-r--r--	2021-09-24 12:03
test_stringptr.py	2.48 KB	-rw-r--r--	2021-09-24 12:03
test_strings.py	6.97 KB	-rw-r--r--	2021-09-24 12:03
test_struct_fields.py	1.47 KB	-rw-r--r--	2021-09-24 12:03
test_structures.py	16.24 KB	-rw-r--r--	2021-09-24 12:03
test_unaligned_structures.py	1.19 KB	-rw-r--r--	2021-09-24 12:03
test_unicode.py	1.72 KB	-rw-r--r--	2021-09-24 12:03
test_values.py	3.75 KB	-rw-r--r--	2021-09-24 12:03
test_varsize_struct.py	1.8 KB	-rw-r--r--	2021-09-24 12:03
test_win32.py	5.16 KB	-rw-r--r--	2021-09-24 12:03
test_wintypes.py	1.43 KB	-rw-r--r--	2021-09-24 12:03

Rename

# This tests the internal _objects attribute
import unittest
from ctypes import *
from sys import getrefcount as grc

# XXX This test must be reviewed for correctness!!!

# ctypes' types are container types.
#
# They have an internal memory block, which only consists of some bytes,
# but it has to keep references to other objects as well. This is not
# really needed for trivial C types like int or char, but it is important
# for aggregate types like strings or pointers in particular.
#
# What about pointers?

class ObjectsTestCase(unittest.TestCase):
    def assertSame(self, a, b):
        self.assertEqual(id(a), id(b))

def test_ints(self):
        i = 42000123
        refcnt = grc(i)
        ci = c_int(i)
        self.assertEqual(refcnt, grc(i))
        self.assertEqual(ci._objects, None)

def test_c_char_p(self):
        s = b"Hello, World"
        refcnt = grc(s)
        cs = c_char_p(s)
        self.assertEqual(refcnt + 1, grc(s))
        self.assertSame(cs._objects, s)

def test_simple_struct(self):
        class X(Structure):
            _fields_ = [("a", c_int), ("b", c_int)]

a = 421234
        b = 421235
        x = X()
        self.assertEqual(x._objects, None)
        x.a = a
        x.b = b
        self.assertEqual(x._objects, None)

def test_embedded_structs(self):
        class X(Structure):
            _fields_ = [("a", c_int), ("b", c_int)]

class Y(Structure):
            _fields_ = [("x", X), ("y", X)]

y = Y()
        self.assertEqual(y._objects, None)

x1, x2 = X(), X()
        y.x, y.y = x1, x2
        self.assertEqual(y._objects, {"0": {}, "1": {}})
        x1.a, x2.b = 42, 93
        self.assertEqual(y._objects, {"0": {}, "1": {}})

def test_xxx(self):
        class X(Structure):
            _fields_ = [("a", c_char_p), ("b", c_char_p)]

class Y(Structure):
            _fields_ = [("x", X), ("y", X)]

s1 = b"Hello, World"
        s2 = b"Hallo, Welt"

x = X()
        x.a = s1
        x.b = s2
        self.assertEqual(x._objects, {"0": s1, "1": s2})

y = Y()
        y.x = x
        self.assertEqual(y._objects, {"0": {"0": s1, "1": s2}})
##        x = y.x
##        del y
##        print x._b_base_._objects

def test_ptr_struct(self):
        class X(Structure):
            _fields_ = [("data", POINTER(c_int))]

A = c_int*4
        a = A(11, 22, 33, 44)
        self.assertEqual(a._objects, None)

x = X()
        x.data = a
##XXX        print x._objects
##XXX        print x.data[0]
##XXX        print x.data._objects

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