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__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_pep3118.py

import unittest
from ctypes import *
import re, struct, sys

if sys.byteorder == "little":
    THIS_ENDIAN = "<"
    OTHER_ENDIAN = ">"
else:
    THIS_ENDIAN = ">"
    OTHER_ENDIAN = "<"

def normalize(format):
    # Remove current endian specifier and white space from a format
    # string
    if format is None:
        return ""
    format = format.replace(OTHER_ENDIAN, THIS_ENDIAN)
    return re.sub(r"\s", "", format)

class Test(unittest.TestCase):

def test_native_types(self):
        for tp, fmt, shape, itemtp in native_types:
            ob = tp()
            v = memoryview(ob)
            try:
                self.assertEqual(normalize(v.format), normalize(fmt))
                if shape:
                    self.assertEqual(len(v), shape[0])
                else:
                    self.assertEqual(len(v) * sizeof(itemtp), sizeof(ob))
                self.assertEqual(v.itemsize, sizeof(itemtp))
                self.assertEqual(v.shape, shape)
                # XXX Issue #12851: PyCData_NewGetBuffer() must provide strides
                #     if requested. memoryview currently reconstructs missing
                #     stride information, so this assert will fail.
                # self.assertEqual(v.strides, ())

# they are always read/write
                self.assertFalse(v.readonly)

if v.shape:
                    n = 1
                    for dim in v.shape:
                        n = n * dim
                    self.assertEqual(n * v.itemsize, len(v.tobytes()))
            except:
                # so that we can see the failing type
                print(tp)
                raise

def test_endian_types(self):
        for tp, fmt, shape, itemtp in endian_types:
            ob = tp()
            v = memoryview(ob)
            try:
                self.assertEqual(v.format, fmt)
                if shape:
                    self.assertEqual(len(v), shape[0])
                else:
                    self.assertEqual(len(v) * sizeof(itemtp), sizeof(ob))
                self.assertEqual(v.itemsize, sizeof(itemtp))
                self.assertEqual(v.shape, shape)
                # XXX Issue #12851
                # self.assertEqual(v.strides, ())

# they are always read/write
                self.assertFalse(v.readonly)

if v.shape:
                    n = 1
                    for dim in v.shape:
                        n = n * dim
                    self.assertEqual(n, len(v))
            except:
                # so that we can see the failing type
                print(tp)
                raise

# define some structure classes

class Point(Structure):
    _fields_ = [("x", c_long), ("y", c_long)]

class PackedPoint(Structure):
    _pack_ = 2
    _fields_ = [("x", c_long), ("y", c_long)]

class Point2(Structure):
    pass
Point2._fields_ = [("x", c_long), ("y", c_long)]

class EmptyStruct(Structure):
    _fields_ = []

class aUnion(Union):
    _fields_ = [("a", c_int)]

class StructWithArrays(Structure):
    _fields_ = [("x", c_long * 3 * 2), ("y", Point * 4)]

class Incomplete(Structure):
    pass

class Complete(Structure):
    pass
PComplete = POINTER(Complete)
Complete._fields_ = [("a", c_long)]

################################################################
#
# This table contains format strings as they look on little endian
# machines.  The test replaces '<' with '>' on big endian machines.
#
native_types = [
    # type                      format                  shape           calc itemsize

## simple types

(c_char,                    "<c",                   (),           c_char),
    (c_byte,                    "<b",                   (),           c_byte),
    (c_ubyte,                   "<B",                   (),           c_ubyte),
    (c_short,                   "<h",                   (),           c_short),
    (c_ushort,                  "<H",                   (),           c_ushort),

# c_int and c_uint may be aliases to c_long
    #(c_int,                     "<i",                   (),           c_int),
    #(c_uint,                    "<I",                   (),           c_uint),

(c_long,                    "<l",                   (),           c_long),
    (c_ulong,                   "<L",                   (),           c_ulong),

# c_longlong and c_ulonglong are aliases on 64-bit platforms
    #(c_longlong,                "<q",                   None,           c_longlong),
    #(c_ulonglong,               "<Q",                   None,           c_ulonglong),

(c_float,                   "<f",                   (),           c_float),
    (c_double,                  "<d",                   (),           c_double),
    # c_longdouble may be an alias to c_double

(c_bool,                    "<?",                   (),           c_bool),
    (py_object,                 "<O",                   (),           py_object),

## pointers

(POINTER(c_byte),           "&<b",                  (),           POINTER(c_byte)),
    (POINTER(POINTER(c_long)),  "&&<l",                 (),           POINTER(POINTER(c_long))),

## arrays and pointers

(c_double * 4,              "<d",                   (4,),           c_double),
    (c_float * 4 * 3 * 2,       "<f",                   (2,3,4),        c_float),
    (POINTER(c_short) * 2,      "&<h",                  (2,),           POINTER(c_short)),
    (POINTER(c_short) * 2 * 3,  "&<h",                  (3,2,),         POINTER(c_short)),
    (POINTER(c_short * 2),      "&(2)<h",               (),           POINTER(c_short)),

## structures and unions

(Point,                     "T{<l:x:<l:y:}",        (),           Point),
    # packed structures do not implement the pep
    (PackedPoint,               "B",                    (),           PackedPoint),
    (Point2,                    "T{<l:x:<l:y:}",        (),           Point2),
    (EmptyStruct,               "T{}",                  (),           EmptyStruct),
    # the pep does't support unions
    (aUnion,                    "B",                    (),           aUnion),
    # structure with sub-arrays
    (StructWithArrays,          "T{(2,3)<l:x:(4)T{<l:x:<l:y:}:y:}", (),  StructWithArrays),
    (StructWithArrays * 3,      "T{(2,3)<l:x:(4)T{<l:x:<l:y:}:y:}", (3,),  StructWithArrays),

## pointer to incomplete structure
    (Incomplete,                "B",                    (),           Incomplete),
    (POINTER(Incomplete),       "&B",                   (),           POINTER(Incomplete)),

# 'Complete' is a structure that starts incomplete, but is completed after the
    # pointer type to it has been created.
    (Complete,                  "T{<l:a:}",             (),           Complete),
    # Unfortunately the pointer format string is not fixed...
    (POINTER(Complete),         "&B",                   (),           POINTER(Complete)),

## other

# function signatures are not implemented
    (CFUNCTYPE(None),           "X{}",                  (),           CFUNCTYPE(None)),

]

class BEPoint(BigEndianStructure):
    _fields_ = [("x", c_long), ("y", c_long)]

class LEPoint(LittleEndianStructure):
    _fields_ = [("x", c_long), ("y", c_long)]

################################################################
#
# This table contains format strings as they really look, on both big
# and little endian machines.
#
endian_types = [
    (BEPoint,                   "T{>l:x:>l:y:}",        (),           BEPoint),
    (LEPoint,                   "T{<l:x:<l:y:}",        (),           LEPoint),
    (POINTER(BEPoint),          "&T{>l:x:>l:y:}",       (),           POINTER(BEPoint)),
    (POINTER(LEPoint),          "&T{<l:x:<l:y:}",       (),           POINTER(LEPoint)),
    ]

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

${this.title}

Code Editor : test_pep3118.py