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Name	Size	Permission	Date
__init__.py	445 B	-rw-r--r--	2024-03-19 22:46
__main__.py	68 B	-rw-r--r--	2024-03-19 22:46
test_anon.py	2.48 KB	-rw-r--r--	2024-03-19 22:46
test_array_in_pointer.py	1.7 KB	-rw-r--r--	2024-03-19 22:46
test_arrays.py	7.33 KB	-rw-r--r--	2024-03-19 22:46
test_as_parameter.py	6.76 KB	-rw-r--r--	2024-03-19 22:46
test_bitfields.py	10.11 KB	-rw-r--r--	2024-03-19 22:46
test_buffers.py	2.55 KB	-rw-r--r--	2024-03-19 22:46
test_bytes.py	1.94 KB	-rw-r--r--	2024-03-19 22:46
test_byteswap.py	11.14 KB	-rw-r--r--	2024-03-19 22:46
test_callbacks.py	10.33 KB	-rw-r--r--	2024-03-19 22:46
test_cast.py	3.64 KB	-rw-r--r--	2024-03-19 22:46
test_cfuncs.py	7.5 KB	-rw-r--r--	2024-03-19 22:46
test_checkretval.py	968 B	-rw-r--r--	2024-03-19 22:46
test_delattr.py	533 B	-rw-r--r--	2024-03-19 22:46
test_errno.py	2.12 KB	-rw-r--r--	2024-03-19 22:46
test_find.py	4.36 KB	-rw-r--r--	2024-03-19 22:46
test_frombuffer.py	5.09 KB	-rw-r--r--	2024-03-19 22:46
test_funcptr.py	3.93 KB	-rw-r--r--	2024-03-19 22:46
test_functions.py	12.21 KB	-rw-r--r--	2024-03-19 22:46
test_incomplete.py	1023 B	-rw-r--r--	2024-03-19 22:46
test_init.py	1.01 KB	-rw-r--r--	2024-03-19 22:46
test_internals.py	2.57 KB	-rw-r--r--	2024-03-19 22:46
test_keeprefs.py	3.96 KB	-rw-r--r--	2024-03-19 22:46
test_libc.py	1005 B	-rw-r--r--	2024-03-19 22:46
test_loading.py	6.97 KB	-rw-r--r--	2024-03-19 22:46
test_macholib.py	2.07 KB	-rw-r--r--	2024-03-19 22:46
test_memfunctions.py	3.22 KB	-rw-r--r--	2024-03-19 22:46
test_numbers.py	9.25 KB	-rw-r--r--	2024-03-19 22:46
test_objects.py	1.64 KB	-rw-r--r--	2024-03-19 22:46
test_parameters.py	10.83 KB	-rw-r--r--	2024-03-19 22:46
test_pep3118.py	8.48 KB	-rw-r--r--	2024-03-19 22:46
test_pickling.py	2.17 KB	-rw-r--r--	2024-03-19 22:46
test_pointers.py	7.07 KB	-rw-r--r--	2024-03-19 22:46
test_prototypes.py	6.68 KB	-rw-r--r--	2024-03-19 22:46
test_python_api.py	2.7 KB	-rw-r--r--	2024-03-19 22:46
test_random_things.py	2.77 KB	-rw-r--r--	2024-03-19 22:46
test_refcounts.py	3.06 KB	-rw-r--r--	2024-03-19 22:46
test_repr.py	842 B	-rw-r--r--	2024-03-19 22:46
test_returnfuncptrs.py	2.83 KB	-rw-r--r--	2024-03-19 22:46
test_simplesubclasses.py	1.26 KB	-rw-r--r--	2024-03-19 22:46
test_sizes.py	804 B	-rw-r--r--	2024-03-19 22:46
test_slicing.py	5.88 KB	-rw-r--r--	2024-03-19 22:46
test_stringptr.py	2.54 KB	-rw-r--r--	2024-03-19 22:46
test_strings.py	7.13 KB	-rw-r--r--	2024-03-19 22:46
test_struct_fields.py	2.92 KB	-rw-r--r--	2024-03-19 22:46
test_structures.py	26.77 KB	-rw-r--r--	2024-03-19 22:46
test_unaligned_structures.py	1.11 KB	-rw-r--r--	2024-03-19 22:46
test_unicode.py	1.95 KB	-rw-r--r--	2024-03-19 22:46
test_values.py	3.78 KB	-rw-r--r--	2024-03-19 22:46
test_varsize_struct.py	1.8 KB	-rw-r--r--	2024-03-19 22:46
test_win32.py	4.91 KB	-rw-r--r--	2024-03-19 22:46
test_wintypes.py	1.36 KB	-rw-r--r--	2024-03-19 22:46

Rename

from ctypes import *
from ctypes.test import need_symbol
import unittest
import sys

class Test(unittest.TestCase):

def test_array2pointer(self):
        array = (c_int * 3)(42, 17, 2)

# casting an array to a pointer works.
        ptr = cast(array, POINTER(c_int))
        self.assertEqual([ptr[i] for i in range(3)], [42, 17, 2])

if 2*sizeof(c_short) == sizeof(c_int):
            ptr = cast(array, POINTER(c_short))
            if sys.byteorder == "little":
                self.assertEqual([ptr[i] for i in range(6)],
                                     [42, 0, 17, 0, 2, 0])
            else:
                self.assertEqual([ptr[i] for i in range(6)],
                                     [0, 42, 0, 17, 0, 2])

def test_address2pointer(self):
        array = (c_int * 3)(42, 17, 2)

address = addressof(array)
        ptr = cast(c_void_p(address), POINTER(c_int))
        self.assertEqual([ptr[i] for i in range(3)], [42, 17, 2])

ptr = cast(address, POINTER(c_int))
        self.assertEqual([ptr[i] for i in range(3)], [42, 17, 2])

def test_p2a_objects(self):
        array = (c_char_p * 5)()
        self.assertEqual(array._objects, None)
        array[0] = b"foo bar"
        self.assertEqual(array._objects, {'0': b"foo bar"})

p = cast(array, POINTER(c_char_p))
        # array and p share a common _objects attribute
        self.assertIs(p._objects, array._objects)
        self.assertEqual(array._objects, {'0': b"foo bar", id(array): array})
        p[0] = b"spam spam"
        self.assertEqual(p._objects, {'0': b"spam spam", id(array): array})
        self.assertIs(array._objects, p._objects)
        p[1] = b"foo bar"
        self.assertEqual(p._objects, {'1': b'foo bar', '0': b"spam spam", id(array): array})
        self.assertIs(array._objects, p._objects)

def test_other(self):
        p = cast((c_int * 4)(1, 2, 3, 4), POINTER(c_int))
        self.assertEqual(p[:4], [1,2, 3, 4])
        self.assertEqual(p[:4:], [1, 2, 3, 4])
        self.assertEqual(p[3:-1:-1], [4, 3, 2, 1])
        self.assertEqual(p[:4:3], [1, 4])
        c_int()
        self.assertEqual(p[:4], [1, 2, 3, 4])
        self.assertEqual(p[:4:], [1, 2, 3, 4])
        self.assertEqual(p[3:-1:-1], [4, 3, 2, 1])
        self.assertEqual(p[:4:3], [1, 4])
        p[2] = 96
        self.assertEqual(p[:4], [1, 2, 96, 4])
        self.assertEqual(p[:4:], [1, 2, 96, 4])
        self.assertEqual(p[3:-1:-1], [4, 96, 2, 1])
        self.assertEqual(p[:4:3], [1, 4])
        c_int()
        self.assertEqual(p[:4], [1, 2, 96, 4])
        self.assertEqual(p[:4:], [1, 2, 96, 4])
        self.assertEqual(p[3:-1:-1], [4, 96, 2, 1])
        self.assertEqual(p[:4:3], [1, 4])

def test_char_p(self):
        # This didn't work: bad argument to internal function
        s = c_char_p(b"hiho")
        self.assertEqual(cast(cast(s, c_void_p), c_char_p).value,
                             b"hiho")

@need_symbol('c_wchar_p')
    def test_wchar_p(self):
        s = c_wchar_p("hiho")
        self.assertEqual(cast(cast(s, c_void_p), c_wchar_p).value,
                             "hiho")

def test_bad_type_arg(self):
        # The type argument must be a ctypes pointer type.
        array_type = c_byte * sizeof(c_int)
        array = array_type()
        self.assertRaises(TypeError, cast, array, None)
        self.assertRaises(TypeError, cast, array, array_type)
        class Struct(Structure):
            _fields_ = [("a", c_int)]
        self.assertRaises(TypeError, cast, array, Struct)
        class MyUnion(Union):
            _fields_ = [("a", c_int)]
        self.assertRaises(TypeError, cast, array, MyUnion)

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