ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: lib64 / python2.7 / ctypes / test

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

import unittest
import sys
from ctypes import *

import _ctypes_test

class ValuesTestCase(unittest.TestCase):

def test_an_integer(self):
        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())

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

class PythonValuesTestCase(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(pythonapi, "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(pythonapi, "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))

expected = [("__hello__", 104),
                    ("__phello__", -104),
                    ("__phello__.spam", 104)]
        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, pythonapi,
                          "Undefined_Symbol")

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

[+] ..
[-] test_values.pyc [open]
[-] runtests.pyc [open]
[-] test_objects.pyc [open]
[-] test_checkretval.pyc [open]
[-] test_find.pyo [open]
[-] test_macholib.py [open]
[-] test_loading.pyo [open]
[-] test_wintypes.pyo [open]
[-] test_win32.py [open]
[-] test_loading.pyc [open]
[-] test_frombuffer.pyo [open]
[-] test_returnfuncptrs.py [open]
[-] test_sizes.pyc [open]
[-] test_libc.pyc [open]
[-] test_libc.pyo [open]
[-] test_random_things.py [open]
[-] test_as_parameter.pyo [open]
[-] test_refcounts.pyo [open]
[-] test_random_things.pyc [open]
[-] test_numbers.py [open]
[-] test_pickling.pyo [open]
[-] test_values.pyo [open]
[-] test_simplesubclasses.pyo [open]
[-] test_repr.py [open]
[-] test_cfuncs.pyc [open]
[-] test_structures.pyo [open]
[-] test_incomplete.pyo [open]
[-] test_frombuffer.pyc [open]
[-] test_byteswap.py [open]
[-] test_pickling.pyc [open]
[-] test_parameters.py [open]
[-] test_macholib.pyc [open]
[-] test_array_in_pointer.pyo [open]
[-] test_repr.pyo [open]
[-] test_delattr.pyo [open]
[-] test_callbacks.pyc [open]
[-] test_strings.pyo [open]
[-] test_funcptr.pyc [open]
[-] test_byteswap.pyo [open]
[-] test_frombuffer.py [open]
[-] test_find.py [open]
[-] test_anon.pyc [open]
[-] test_errno.pyc [open]
[-] test_pep3118.pyo [open]
[-] test_funcptr.py [open]
[-] test_strings.pyc [open]
[-] test_cfuncs.py [open]
[-] test_array_in_pointer.py [open]
[-] test_bitfields.pyc [open]
[-] test_python_api.pyc [open]
[-] test_unicode.pyo [open]
[-] test_anon.pyo [open]
[-] test_slicing.pyc [open]
[-] test_refcounts.pyc [open]
[-] runtests.pyo [open]
[-] test_pointers.pyo [open]
[-] test_delattr.pyc [open]
[-] __init__.pyc [open]
[-] test_prototypes.pyc [open]
[-] test_cast.pyo [open]
[-] test_checkretval.pyo [open]
[-] test_pep3118.py [open]
[-] test_wintypes.pyc [open]
[-] test_sizes.py [open]
[-] test_numbers.pyc [open]
[-] test_varsize_struct.pyo [open]
[-] test_internals.py [open]
[-] test_objects.py [open]
[-] test_anon.py [open]
[-] test_struct_fields.py [open]
[-] test_functions.pyo [open]
[-] test_libc.py [open]
[-] test_struct_fields.pyc [open]
[-] test_random_things.pyo [open]
[-] test_arrays.pyc [open]
[-] test_memfunctions.py [open]
[-] test_python_api.pyo [open]
[-] test_incomplete.pyc [open]
[-] test_returnfuncptrs.pyo [open]
[-] test_array_in_pointer.pyc [open]
[-] test_structures.pyc [open]
[-] test_errno.py [open]
[-] test_returnfuncptrs.pyc [open]
[-] test_as_parameter.pyc [open]
[-] test_keeprefs.pyo [open]
[-] test_memfunctions.pyc [open]
[-] test_pep3118.pyc [open]
[-] test_parameters.pyo [open]
[-] test_cast.pyc [open]
[-] test_simplesubclasses.py [open]
[-] test_internals.pyc [open]
[-] test_keeprefs.py [open]
[-] test_pointers.py [open]
[-] test_bitfields.pyo [open]
[-] test_macholib.pyo [open]
[-] test_refcounts.py [open]
[-] test_values.py [open]
[-] test_checkretval.py [open]
[-] test_arrays.py [open]
[-] test_buffers.pyc [open]
[-] test_python_api.py [open]
[-] test_strings.py [open]
[-] test_unicode.pyc [open]
[-] test_parameters.pyc [open]
[-] test_buffers.pyo [open]
[-] test_cfuncs.pyo [open]
[-] test_prototypes.pyo [open]
[-] test_keeprefs.pyc [open]
[-] test_stringptr.pyc [open]
[-] test_unicode.py [open]
[-] test_struct_fields.pyo [open]
[-] test_cast.py [open]
[-] test_slicing.pyo [open]
[-] test_buffers.py [open]
[-] test_prototypes.py [open]
[-] test_internals.pyo [open]
[-] test_unaligned_structures.py [open]
[-] test_functions.pyc [open]
[-] test_stringptr.pyo [open]
[-] test_repr.pyc [open]
[-] __init__.py [open]
[-] test_numbers.pyo [open]
[-] test_init.pyc [open]
[-] test_errno.pyo [open]
[-] test_structures.py [open]
[-] test_win32.pyo [open]
[-] test_varsize_struct.pyc [open]
[-] test_byteswap.pyc [open]
[-] test_stringptr.py [open]
[-] test_arrays.pyo [open]
[-] test_slicing.py [open]
[-] test_loading.py [open]
[-] test_delattr.py [open]
[-] test_objects.pyo [open]
[-] test_init.pyo [open]
[-] test_varsize_struct.py [open]
[-] test_init.py [open]
[-] test_memfunctions.pyo [open]
[-] test_as_parameter.py [open]
[-] test_incomplete.py [open]
[-] test_simplesubclasses.pyc [open]
[-] test_bitfields.py [open]
[-] test_callbacks.py [open]
[-] test_win32.pyc [open]
[-] test_unaligned_structures.pyo [open]
[-] test_unaligned_structures.pyc [open]
[-] test_sizes.pyo [open]
[-] test_funcptr.pyo [open]
[-] __init__.pyo [open]
[-] test_pointers.pyc [open]
[-] runtests.py [open]
[-] test_find.pyc [open]
[-] test_callbacks.pyo [open]
[-] test_wintypes.py [open]
[-] test_functions.py [open]
[-] test_pickling.py [open]