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

Code Editor : test_funcptr.py

import os, unittest
from ctypes import *

try:
    WINFUNCTYPE
except NameError:
    # fake to enable this test on Linux
    WINFUNCTYPE = CFUNCTYPE

import _ctypes_test
lib = CDLL(_ctypes_test.__file__)

class CFuncPtrTestCase(unittest.TestCase):
    def test_basic(self):
        X = WINFUNCTYPE(c_int, c_int, c_int)

def func(*args):
            return len(args)

x = X(func)
        self.assertEqual(x.restype, c_int)
        self.assertEqual(x.argtypes, (c_int, c_int))
        self.assertEqual(sizeof(x), sizeof(c_voidp))
        self.assertEqual(sizeof(X), sizeof(c_voidp))

def test_first(self):
        StdCallback = WINFUNCTYPE(c_int, c_int, c_int)
        CdeclCallback = CFUNCTYPE(c_int, c_int, c_int)

def func(a, b):
            return a + b

s = StdCallback(func)
        c = CdeclCallback(func)

self.assertEqual(s(1, 2), 3)
        self.assertEqual(c(1, 2), 3)
        # The following no longer raises a TypeError - it is now
        # possible, as in C, to call cdecl functions with more parameters.
        #self.assertRaises(TypeError, c, 1, 2, 3)
        self.assertEqual(c(1, 2, 3, 4, 5, 6), 3)
        if not WINFUNCTYPE is CFUNCTYPE and os.name != "ce":
            self.assertRaises(TypeError, s, 1, 2, 3)

def test_structures(self):
        WNDPROC = WINFUNCTYPE(c_long, c_int, c_int, c_int, c_int)

def wndproc(hwnd, msg, wParam, lParam):
            return hwnd + msg + wParam + lParam

HINSTANCE = c_int
        HICON = c_int
        HCURSOR = c_int
        LPCTSTR = c_char_p

class WNDCLASS(Structure):
            _fields_ = [("style", c_uint),
                        ("lpfnWndProc", WNDPROC),
                        ("cbClsExtra", c_int),
                        ("cbWndExtra", c_int),
                        ("hInstance", HINSTANCE),
                        ("hIcon", HICON),
                        ("hCursor", HCURSOR),
                        ("lpszMenuName", LPCTSTR),
                        ("lpszClassName", LPCTSTR)]

wndclass = WNDCLASS()
        wndclass.lpfnWndProc = WNDPROC(wndproc)

WNDPROC_2 = WINFUNCTYPE(c_long, c_int, c_int, c_int, c_int)

# This is no longer true, now that WINFUNCTYPE caches created types internally.
        ## # CFuncPtr subclasses are compared by identity, so this raises a TypeError:
        ## self.assertRaises(TypeError, setattr, wndclass,
        ##                  "lpfnWndProc", WNDPROC_2(wndproc))
        # instead:

self.assertIs(WNDPROC, WNDPROC_2)
        # 'wndclass.lpfnWndProc' leaks 94 references.  Why?
        self.assertEqual(wndclass.lpfnWndProc(1, 2, 3, 4), 10)

f = wndclass.lpfnWndProc

del wndclass
        del wndproc

self.assertEqual(f(10, 11, 12, 13), 46)

def test_dllfunctions(self):

def NoNullHandle(value):
            if not value:
                raise WinError()
            return value

strchr = lib.my_strchr
        strchr.restype = c_char_p
        strchr.argtypes = (c_char_p, c_char)
        self.assertEqual(strchr(b"abcdefghi", b"b"), b"bcdefghi")
        self.assertEqual(strchr(b"abcdefghi", b"x"), None)

strtok = lib.my_strtok
        strtok.restype = c_char_p
        # Neither of this does work: strtok changes the buffer it is passed
##        strtok.argtypes = (c_char_p, c_char_p)
##        strtok.argtypes = (c_string, c_char_p)

def c_string(init):
            size = len(init) + 1
            return (c_char*size)(*init)

s = b"a\nb\nc"
        b = c_string(s)

##        b = (c_char * (len(s)+1))()
##        b.value = s

##        b = c_string(s)
        self.assertEqual(strtok(b, b"\n"), b"a")
        self.assertEqual(strtok(None, b"\n"), b"b")
        self.assertEqual(strtok(None, b"\n"), b"c")
        self.assertEqual(strtok(None, b"\n"), None)

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

${this.title}

Code Editor : test_funcptr.py