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__pycache__	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
__init__.py	6.98 KB	-rw-r--r--	2024-04-17 20:28
runtests.py	682 B	-rw-r--r--	2024-04-17 20:28
test_anon.py	2 KB	-rw-r--r--	2024-04-17 20:28
test_array_in_pointer.py	1.7 KB	-rw-r--r--	2024-04-17 20:28
test_arrays.py	5.54 KB	-rw-r--r--	2024-04-17 20:28
test_as_parameter.py	6.63 KB	-rw-r--r--	2024-04-17 20:28
test_bitfields.py	9.08 KB	-rw-r--r--	2024-04-17 20:28
test_buffers.py	2.18 KB	-rw-r--r--	2024-04-17 20:28
test_bytes.py	1.16 KB	-rw-r--r--	2024-04-17 20:28
test_byteswap.py	10.57 KB	-rw-r--r--	2024-04-17 20:28
test_callbacks.py	8.77 KB	-rw-r--r--	2024-04-17 20:28
test_cast.py	3.13 KB	-rw-r--r--	2024-04-17 20:28
test_cfuncs.py	7.44 KB	-rw-r--r--	2024-04-17 20:28
test_checkretval.py	995 B	-rw-r--r--	2024-04-17 20:28
test_delattr.py	533 B	-rw-r--r--	2024-04-17 20:28
test_errcheck.py	477 B	-rw-r--r--	2024-04-17 20:28
test_errno.py	2.25 KB	-rw-r--r--	2024-04-17 20:28
test_find.py	2.41 KB	-rw-r--r--	2024-04-17 20:28
test_frombuffer.py	2.42 KB	-rw-r--r--	2024-04-17 20:28
test_funcptr.py	3.82 KB	-rw-r--r--	2024-04-17 20:28
test_functions.py	12.35 KB	-rw-r--r--	2024-04-17 20:28
test_incomplete.py	1023 B	-rw-r--r--	2024-04-17 20:28
test_init.py	1.01 KB	-rw-r--r--	2024-04-17 20:28
test_integers.py	96 B	-rw-r--r--	2024-04-17 20:28
test_internals.py	2.56 KB	-rw-r--r--	2024-04-17 20:28
test_keeprefs.py	3.93 KB	-rw-r--r--	2024-04-17 20:28
test_libc.py	1005 B	-rw-r--r--	2024-04-17 20:28
test_loading.py	4 KB	-rw-r--r--	2024-04-17 20:28
test_macholib.py	1.56 KB	-rw-r--r--	2024-04-17 20:28
test_memfunctions.py	3.24 KB	-rw-r--r--	2024-04-17 20:28
test_numbers.py	9 KB	-rw-r--r--	2024-04-17 20:28
test_objects.py	1.72 KB	-rw-r--r--	2024-04-17 20:28
test_parameters.py	6.16 KB	-rw-r--r--	2024-04-17 20:28
test_pep3118.py	7.35 KB	-rw-r--r--	2024-04-17 20:28
test_pickling.py	2.15 KB	-rw-r--r--	2024-04-17 20:28
test_pointers.py	6.12 KB	-rw-r--r--	2024-04-17 20:28
test_prototypes.py	6.63 KB	-rw-r--r--	2024-04-17 20:28
test_python_api.py	3.07 KB	-rw-r--r--	2024-04-17 20:28
test_random_things.py	2.77 KB	-rw-r--r--	2024-04-17 20:28
test_refcounts.py	2.52 KB	-rw-r--r--	2024-04-17 20:28
test_repr.py	842 B	-rw-r--r--	2024-04-17 20:28
test_returnfuncptrs.py	2.83 KB	-rw-r--r--	2024-04-17 20:28
test_simplesubclasses.py	1.26 KB	-rw-r--r--	2024-04-17 20:28
test_sizes.py	815 B	-rw-r--r--	2024-04-17 20:28
test_slicing.py	5.95 KB	-rw-r--r--	2024-04-17 20:28
test_stringptr.py	2.48 KB	-rw-r--r--	2024-04-17 20:28
test_strings.py	6.94 KB	-rw-r--r--	2024-04-17 20:28
test_struct_fields.py	1.47 KB	-rw-r--r--	2024-04-17 20:28
test_structures.py	15.43 KB	-rw-r--r--	2024-04-17 20:28
test_unaligned_structures.py	1.19 KB	-rw-r--r--	2024-04-17 20:28
test_unicode.py	1.87 KB	-rw-r--r--	2024-04-17 20:28
test_values.py	3.43 KB	-rw-r--r--	2024-04-17 20:28
test_varsize_struct.py	1.8 KB	-rw-r--r--	2024-04-17 20:28
test_win32.py	3.96 KB	-rw-r--r--	2024-04-17 20:28
test_wintypes.py	1.44 KB	-rw-r--r--	2024-04-17 20:28

Rename

"""
A testcase which accesses *values* in a dll.
"""

import unittest
from ctypes import *

import _ctypes_test

class ValuesTestCase(unittest.TestCase):

def test_an_integer(self):
        # This test checks and changes an integer stored inside the
        # _ctypes_test dll/shared lib.
        ctdll = CDLL(_ctypes_test.__file__)
        an_integer = c_int.in_dll(ctdll, "an_integer")
        x = an_integer.value
        self.assertEqual(x, ctdll.get_an_integer())
        an_integer.value *= 2
        self.assertEqual(x*2, ctdll.get_an_integer())
        # To avoid test failures when this test is repeated several
        # times the original value must be restored
        an_integer.value = x
        self.assertEqual(x, ctdll.get_an_integer())

def test_undefined(self):
        ctdll = CDLL(_ctypes_test.__file__)
        self.assertRaises(ValueError, c_int.in_dll, ctdll, "Undefined_Symbol")

class Win_ValuesTestCase(unittest.TestCase):
        """This test only works when python itself is a dll/shared library"""

def test_optimizeflag(self):
            # This test accesses the Py_OptimizeFlag intger, which is
            # exported by the Python dll.

# It's value is set depending on the -O and -OO flags:
            # if not given, it is 0 and __debug__ is 1.
            # If -O is given, the flag is 1, for -OO it is 2.
            # docstrings are also removed in the latter case.
            opt = c_int.in_dll(pydll, "Py_OptimizeFlag").value
            if __debug__:
                self.assertEqual(opt, 0)
            elif ValuesTestCase.__doc__ is not None:
                self.assertEqual(opt, 1)
            else:
                self.assertEqual(opt, 2)

def test_frozentable(self):
            # Python exports a PyImport_FrozenModules symbol. This is a
            # pointer to an array of struct _frozen entries.  The end of the
            # array is marked by an entry containing a NULL name and zero
            # size.

# In standard Python, this table contains a __hello__
            # module, and a __phello__ package containing a spam
            # module.
            class struct_frozen(Structure):
                _fields_ = [("name", c_char_p),
                            ("code", POINTER(c_ubyte)),
                            ("size", c_int)]
            FrozenTable = POINTER(struct_frozen)

ft = FrozenTable.in_dll(pydll, "PyImport_FrozenModules")
            # ft is a pointer to the struct_frozen entries:
            items = []
            for entry in ft:
                # This is dangerous. We *can* iterate over a pointer, but
                # the loop will not terminate (maybe with an access
                # violation;-) because the pointer instance has no size.
                if entry.name is None:
                    break
                items.append((entry.name, entry.size))
            import sys
            if sys.version_info[:2] >= (2, 3):
                expected = [("__hello__", 104), ("__phello__", -104), ("__phello__.spam", 104)]
            else:
                expected = [("__hello__", 100), ("__phello__", -100), ("__phello__.spam", 100)]
            self.assertEqual(items, expected)

from ctypes import _pointer_type_cache
            del _pointer_type_cache[struct_frozen]

def test_undefined(self):
            self.assertRaises(ValueError, c_int.in_dll, pydll, "Undefined_Symbol")

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