FM / test

/opt/imh-python/lib/python3.9/ctypes/test/

/opt/imh-python/lib/python3.9/ctypes/test

Name	Size	Mode	Actions
__pycache__/	-	0755	rm
test_anon.py	2540	0644	edit dl rm
test_arrays.py	7505	0644	edit dl rm
test_array_in_pointer.py	1738	0644	edit dl rm
test_as_parameter.py	6919	0644	edit dl rm
test_bitfields.py	10222	0644	edit dl rm
test_buffers.py	2611	0644	edit dl rm
test_bytes.py	1987	0644	edit dl rm
test_byteswap.py	11411	0644	edit dl rm
test_callbacks.py	10574	0644	edit dl rm
test_cast.py	3728	0644	edit dl rm
test_cfuncs.py	7680	0644	edit dl rm
test_checkretval.py	968	0644	edit dl rm
test_delattr.py	533	0644	edit dl rm
test_errno.py	2171	0644	edit dl rm
test_find.py	4433	0644	edit dl rm
test_frombuffer.py	5215	0644	edit dl rm
test_funcptr.py	4026	0644	edit dl rm
test_functions.py	12556	0644	edit dl rm
test_incomplete.py	1023	0644	edit dl rm
test_init.py	1039	0644	edit dl rm
test_internals.py	2631	0644	edit dl rm
test_keeprefs.py	4058	0644	edit dl rm
test_libc.py	1005	0644	edit dl rm
test_loading.py	7064	0644	edit dl rm
test_macholib.py	2121	0644	edit dl rm
test_memfunctions.py	3293	0644	edit dl rm
test_numbers.py	9526	0644	edit dl rm
test_objects.py	1677	0644	edit dl rm
test_parameters.py	9570	0644	edit dl rm
test_pep3118.py	8516	0644	edit dl rm
test_pickling.py	2218	0644	edit dl rm
test_pointers.py	7239	0644	edit dl rm
test_prototypes.py	6845	0644	edit dl rm
test_python_api.py	2866	0644	edit dl rm
test_random_things.py	2836	0644	edit dl rm
test_refcounts.py	2576	0644	edit dl rm
test_repr.py	842	0644	edit dl rm
test_returnfuncptrs.py	2893	0644	edit dl rm
test_simplesubclasses.py	1289	0644	edit dl rm
test_sizes.py	804	0644	edit dl rm
test_slicing.py	6025	0644	edit dl rm
test_stringptr.py	2598	0644	edit dl rm
test_strings.py	7303	0644	edit dl rm
test_structures.py	27430	0644	edit dl rm
test_struct_fields.py	2421	0644	edit dl rm
test_unaligned_structures.py	1140	0644	edit dl rm
test_unicode.py	1997	0644	edit dl rm
test_values.py	3871	0644	edit dl rm
test_varsize_struct.py	1842	0644	edit dl rm
test_win32.py	5027	0644	edit dl rm
test_wintypes.py	1397	0644	edit dl rm
__init__.py	399	0644	edit dl rm
__main__.py	68	0644	edit dl rm

Edit: /opt/imh-python/lib/python3.9/ctypes/test/test_objects.py (1677B)

r'''
This tests the '_objects' attribute of ctypes instances.  '_objects'
holds references to objects that must be kept alive as long as the
ctypes instance, to make sure that the memory buffer is valid.

WARNING: The '_objects' attribute is exposed ONLY for debugging ctypes itself,
it MUST NEVER BE MODIFIED!

'_objects' is initialized to a dictionary on first use, before that it
is None.

Here is an array of string pointers:

>>> from ctypes import *
>>> array = (c_char_p * 5)()
>>> print(array._objects)
None
>>>

The memory block stores pointers to strings, and the strings itself
assigned from Python must be kept.

>>> array[4] = b'foo bar'
>>> array._objects
{'4': b'foo bar'}
>>> array[4]
b'foo bar'
>>>

It gets more complicated when the ctypes instance itself is contained
in a 'base' object.

>>> class X(Structure):
...     _fields_ = [("x", c_int), ("y", c_int), ("array", c_char_p * 5)]
...
>>> x = X()
>>> print(x._objects)
None
>>>

The'array' attribute of the 'x' object shares part of the memory buffer
of 'x' ('_b_base_' is either None, or the root object owning the memory block):

>>> print(x.array._b_base_) # doctest: +ELLIPSIS
<ctypes.test.test_objects.X object at 0x...>
>>>

>>> x.array[0] = b'spam spam spam'
>>> x._objects
{'0:2': b'spam spam spam'}
>>> x.array._b_base_._objects
{'0:2': b'spam spam spam'}
>>>

'''

import unittest, doctest

import ctypes.test.test_objects

class TestCase(unittest.TestCase):
    def test(self):
        failures, tests = doctest.testmod(ctypes.test.test_objects)
        self.assertFalse(failures, 'doctests failed, see output above')

if __name__ == '__main__':
    doctest.testmod(ctypes.test.test_objects)

cmd: