diff options
Diffstat (limited to 'lib/python2.7/ctypes/test/test_functions.py')
-rw-r--r-- | lib/python2.7/ctypes/test/test_functions.py | 412 |
1 files changed, 0 insertions, 412 deletions
diff --git a/lib/python2.7/ctypes/test/test_functions.py b/lib/python2.7/ctypes/test/test_functions.py deleted file mode 100644 index 13bd3ec..0000000 --- a/lib/python2.7/ctypes/test/test_functions.py +++ /dev/null @@ -1,412 +0,0 @@ -""" -Here is probably the place to write the docs, since the test-cases -show how the type behave. - -Later... -""" - -from ctypes import * -import sys, unittest - -try: - WINFUNCTYPE -except NameError: - # fake to enable this test on Linux - WINFUNCTYPE = CFUNCTYPE - -import _ctypes_test -dll = CDLL(_ctypes_test.__file__) -if sys.platform == "win32": - windll = WinDLL(_ctypes_test.__file__) - -class POINT(Structure): - _fields_ = [("x", c_int), ("y", c_int)] -class RECT(Structure): - _fields_ = [("left", c_int), ("top", c_int), - ("right", c_int), ("bottom", c_int)] -class FunctionTestCase(unittest.TestCase): - - def test_mro(self): - # in Python 2.3, this raises TypeError: MRO conflict among bases classes, - # in Python 2.2 it works. - # - # But in early versions of _ctypes.c, the result of tp_new - # wasn't checked, and it even crashed Python. - # Found by Greg Chapman. - - try: - class X(object, Array): - _length_ = 5 - _type_ = "i" - except TypeError: - pass - - - from _ctypes import _Pointer - try: - class X(object, _Pointer): - pass - except TypeError: - pass - - from _ctypes import _SimpleCData - try: - class X(object, _SimpleCData): - _type_ = "i" - except TypeError: - pass - - try: - class X(object, Structure): - _fields_ = [] - except TypeError: - pass - - - def test_wchar_parm(self): - try: - c_wchar - except NameError: - return - f = dll._testfunc_i_bhilfd - f.argtypes = [c_byte, c_wchar, c_int, c_long, c_float, c_double] - result = f(1, u"x", 3, 4, 5.0, 6.0) - self.assertEqual(result, 139) - self.assertEqual(type(result), int) - - def test_wchar_result(self): - try: - c_wchar - except NameError: - return - f = dll._testfunc_i_bhilfd - f.argtypes = [c_byte, c_short, c_int, c_long, c_float, c_double] - f.restype = c_wchar - result = f(0, 0, 0, 0, 0, 0) - self.assertEqual(result, u'\x00') - - def test_voidresult(self): - f = dll._testfunc_v - f.restype = None - f.argtypes = [c_int, c_int, POINTER(c_int)] - result = c_int() - self.assertEqual(None, f(1, 2, byref(result))) - self.assertEqual(result.value, 3) - - def test_intresult(self): - f = dll._testfunc_i_bhilfd - f.argtypes = [c_byte, c_short, c_int, c_long, c_float, c_double] - f.restype = c_int - result = f(1, 2, 3, 4, 5.0, 6.0) - self.assertEqual(result, 21) - self.assertEqual(type(result), int) - - result = f(-1, -2, -3, -4, -5.0, -6.0) - self.assertEqual(result, -21) - self.assertEqual(type(result), int) - - # If we declare the function to return a short, - # is the high part split off? - f.restype = c_short - result = f(1, 2, 3, 4, 5.0, 6.0) - self.assertEqual(result, 21) - self.assertEqual(type(result), int) - - result = f(1, 2, 3, 0x10004, 5.0, 6.0) - self.assertEqual(result, 21) - self.assertEqual(type(result), int) - - # You cannot assign character format codes as restype any longer - self.assertRaises(TypeError, setattr, f, "restype", "i") - - def test_floatresult(self): - f = dll._testfunc_f_bhilfd - f.argtypes = [c_byte, c_short, c_int, c_long, c_float, c_double] - f.restype = c_float - result = f(1, 2, 3, 4, 5.0, 6.0) - self.assertEqual(result, 21) - self.assertEqual(type(result), float) - - result = f(-1, -2, -3, -4, -5.0, -6.0) - self.assertEqual(result, -21) - self.assertEqual(type(result), float) - - def test_doubleresult(self): - f = dll._testfunc_d_bhilfd - f.argtypes = [c_byte, c_short, c_int, c_long, c_float, c_double] - f.restype = c_double - result = f(1, 2, 3, 4, 5.0, 6.0) - self.assertEqual(result, 21) - self.assertEqual(type(result), float) - - result = f(-1, -2, -3, -4, -5.0, -6.0) - self.assertEqual(result, -21) - self.assertEqual(type(result), float) - - def test_longdoubleresult(self): - f = dll._testfunc_D_bhilfD - f.argtypes = [c_byte, c_short, c_int, c_long, c_float, c_longdouble] - f.restype = c_longdouble - result = f(1, 2, 3, 4, 5.0, 6.0) - self.assertEqual(result, 21) - self.assertEqual(type(result), float) - - result = f(-1, -2, -3, -4, -5.0, -6.0) - self.assertEqual(result, -21) - self.assertEqual(type(result), float) - - def test_longlongresult(self): - try: - c_longlong - except NameError: - return - f = dll._testfunc_q_bhilfd - f.restype = c_longlong - f.argtypes = [c_byte, c_short, c_int, c_long, c_float, c_double] - result = f(1, 2, 3, 4, 5.0, 6.0) - self.assertEqual(result, 21) - - f = dll._testfunc_q_bhilfdq - f.restype = c_longlong - f.argtypes = [c_byte, c_short, c_int, c_long, c_float, c_double, c_longlong] - result = f(1, 2, 3, 4, 5.0, 6.0, 21) - self.assertEqual(result, 42) - - def test_stringresult(self): - f = dll._testfunc_p_p - f.argtypes = None - f.restype = c_char_p - result = f("123") - self.assertEqual(result, "123") - - result = f(None) - self.assertEqual(result, None) - - def test_pointers(self): - f = dll._testfunc_p_p - f.restype = POINTER(c_int) - f.argtypes = [POINTER(c_int)] - - # This only works if the value c_int(42) passed to the - # function is still alive while the pointer (the result) is - # used. - - v = c_int(42) - - self.assertEqual(pointer(v).contents.value, 42) - result = f(pointer(v)) - self.assertEqual(type(result), POINTER(c_int)) - self.assertEqual(result.contents.value, 42) - - # This on works... - result = f(pointer(v)) - self.assertEqual(result.contents.value, v.value) - - p = pointer(c_int(99)) - result = f(p) - self.assertEqual(result.contents.value, 99) - - arg = byref(v) - result = f(arg) - self.assertNotEqual(result.contents, v.value) - - self.assertRaises(ArgumentError, f, byref(c_short(22))) - - # It is dangerous, however, because you don't control the lifetime - # of the pointer: - result = f(byref(c_int(99))) - self.assertNotEqual(result.contents, 99) - - def test_errors(self): - f = dll._testfunc_p_p - f.restype = c_int - - class X(Structure): - _fields_ = [("y", c_int)] - - self.assertRaises(TypeError, f, X()) #cannot convert parameter - - ################################################################ - def test_shorts(self): - f = dll._testfunc_callback_i_if - - args = [] - expected = [262144, 131072, 65536, 32768, 16384, 8192, 4096, 2048, - 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1] - - def callback(v): - args.append(v) - return v - - CallBack = CFUNCTYPE(c_int, c_int) - - cb = CallBack(callback) - f(2**18, cb) - self.assertEqual(args, expected) - - ################################################################ - - - def test_callbacks(self): - f = dll._testfunc_callback_i_if - f.restype = c_int - f.argtypes = None - - MyCallback = CFUNCTYPE(c_int, c_int) - - def callback(value): - #print "called back with", value - return value - - cb = MyCallback(callback) - result = f(-10, cb) - self.assertEqual(result, -18) - - # test with prototype - f.argtypes = [c_int, MyCallback] - cb = MyCallback(callback) - result = f(-10, cb) - self.assertEqual(result, -18) - - AnotherCallback = WINFUNCTYPE(c_int, c_int, c_int, c_int, c_int) - - # check that the prototype works: we call f with wrong - # argument types - cb = AnotherCallback(callback) - self.assertRaises(ArgumentError, f, -10, cb) - - - def test_callbacks_2(self): - # Can also use simple datatypes as argument type specifiers - # for the callback function. - # In this case the call receives an instance of that type - f = dll._testfunc_callback_i_if - f.restype = c_int - - MyCallback = CFUNCTYPE(c_int, c_int) - - f.argtypes = [c_int, MyCallback] - - def callback(value): - #print "called back with", value - self.assertEqual(type(value), int) - return value - - cb = MyCallback(callback) - result = f(-10, cb) - self.assertEqual(result, -18) - - def test_longlong_callbacks(self): - - f = dll._testfunc_callback_q_qf - f.restype = c_longlong - - MyCallback = CFUNCTYPE(c_longlong, c_longlong) - - f.argtypes = [c_longlong, MyCallback] - - def callback(value): - self.assertTrue(isinstance(value, (int, long))) - return value & 0x7FFFFFFF - - cb = MyCallback(callback) - - self.assertEqual(13577625587, f(1000000000000, cb)) - - def test_errors(self): - self.assertRaises(AttributeError, getattr, dll, "_xxx_yyy") - self.assertRaises(ValueError, c_int.in_dll, dll, "_xxx_yyy") - - def test_byval(self): - - # without prototype - ptin = POINT(1, 2) - ptout = POINT() - # EXPORT int _testfunc_byval(point in, point *pout) - result = dll._testfunc_byval(ptin, byref(ptout)) - got = result, ptout.x, ptout.y - expected = 3, 1, 2 - self.assertEqual(got, expected) - - # with prototype - ptin = POINT(101, 102) - ptout = POINT() - dll._testfunc_byval.argtypes = (POINT, POINTER(POINT)) - dll._testfunc_byval.restype = c_int - result = dll._testfunc_byval(ptin, byref(ptout)) - got = result, ptout.x, ptout.y - expected = 203, 101, 102 - self.assertEqual(got, expected) - - def test_struct_return_2H(self): - class S2H(Structure): - _fields_ = [("x", c_short), - ("y", c_short)] - dll.ret_2h_func.restype = S2H - dll.ret_2h_func.argtypes = [S2H] - inp = S2H(99, 88) - s2h = dll.ret_2h_func(inp) - self.assertEqual((s2h.x, s2h.y), (99*2, 88*3)) - - if sys.platform == "win32": - def test_struct_return_2H_stdcall(self): - class S2H(Structure): - _fields_ = [("x", c_short), - ("y", c_short)] - - windll.s_ret_2h_func.restype = S2H - windll.s_ret_2h_func.argtypes = [S2H] - s2h = windll.s_ret_2h_func(S2H(99, 88)) - self.assertEqual((s2h.x, s2h.y), (99*2, 88*3)) - - # This is known cdecl incompatibility between GCC - # and MSVC. It is addressed in GCC issue #36834. - # Python libffi detect it and complain. - @unittest.skipIf(sys.platform == "win32" and sys.version.find("GCC") >= 0, 'XFAIL GCC(mingw)') - def test_struct_return_8H(self): - class S8I(Structure): - _fields_ = [("a", c_int), - ("b", c_int), - ("c", c_int), - ("d", c_int), - ("e", c_int), - ("f", c_int), - ("g", c_int), - ("h", c_int)] - dll.ret_8i_func.restype = S8I - dll.ret_8i_func.argtypes = [S8I] - inp = S8I(9, 8, 7, 6, 5, 4, 3, 2) - s8i = dll.ret_8i_func(inp) - self.assertEqual((s8i.a, s8i.b, s8i.c, s8i.d, s8i.e, s8i.f, s8i.g, s8i.h), - (9*2, 8*3, 7*4, 6*5, 5*6, 4*7, 3*8, 2*9)) - - if sys.platform == "win32": - def test_struct_return_8H_stdcall(self): - class S8I(Structure): - _fields_ = [("a", c_int), - ("b", c_int), - ("c", c_int), - ("d", c_int), - ("e", c_int), - ("f", c_int), - ("g", c_int), - ("h", c_int)] - windll.s_ret_8i_func.restype = S8I - windll.s_ret_8i_func.argtypes = [S8I] - inp = S8I(9, 8, 7, 6, 5, 4, 3, 2) - s8i = windll.s_ret_8i_func(inp) - self.assertEqual((s8i.a, s8i.b, s8i.c, s8i.d, s8i.e, s8i.f, s8i.g, s8i.h), - (9*2, 8*3, 7*4, 6*5, 5*6, 4*7, 3*8, 2*9)) - - def test_sf1651235(self): - # see http://www.python.org/sf/1651235 - - proto = CFUNCTYPE(c_int, RECT, POINT) - def callback(*args): - return 0 - - callback = proto(callback) - self.assertRaises(ArgumentError, lambda: callback((1, 2, 3, 4), POINT())) - -if __name__ == '__main__': - unittest.main() |