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# coding: latin-1
import unittest
import ctypes
from ctypes.test import need_symbol
import _ctypes_test
@need_symbol('c_wchar')
class UnicodeTestCase(unittest.TestCase):
@classmethod
def setUpClass(cls):
dll = ctypes.CDLL(_ctypes_test.__file__)
cls.wcslen = dll.my_wcslen
cls.wcslen.argtypes = [ctypes.c_wchar_p]
def setUp(self):
self.prev_conv_mode = ctypes.set_conversion_mode("ascii", "strict")
def tearDown(self):
ctypes.set_conversion_mode(*self.prev_conv_mode)
def test_ascii_strict(self):
wcslen = self.wcslen
ctypes.set_conversion_mode("ascii", "strict")
# no conversions take place with unicode arguments
self.assertEqual(wcslen(u"abc"), 3)
self.assertEqual(wcslen(u"ab\u2070"), 3)
# string args are converted
self.assertEqual(wcslen("abc"), 3)
self.assertRaises(ctypes.ArgumentError, wcslen, "ab")
def test_ascii_replace(self):
wcslen = self.wcslen
ctypes.set_conversion_mode("ascii", "replace")
self.assertEqual(wcslen(u"abc"), 3)
self.assertEqual(wcslen(u"ab\u2070"), 3)
self.assertEqual(wcslen("abc"), 3)
self.assertEqual(wcslen("ab"), 3)
def test_ascii_ignore(self):
wcslen = self.wcslen
ctypes.set_conversion_mode("ascii", "ignore")
self.assertEqual(wcslen(u"abc"), 3)
self.assertEqual(wcslen(u"ab\u2070"), 3)
# ignore error mode skips non-ascii characters
self.assertEqual(wcslen("abc"), 3)
self.assertEqual(wcslen(""), 0)
def test_latin1_strict(self):
wcslen = self.wcslen
ctypes.set_conversion_mode("latin-1", "strict")
self.assertEqual(wcslen(u"abc"), 3)
self.assertEqual(wcslen(u"ab\u2070"), 3)
self.assertEqual(wcslen("abc"), 3)
self.assertEqual(wcslen(""), 4)
def test_buffers(self):
ctypes.set_conversion_mode("ascii", "strict")
buf = ctypes.create_unicode_buffer("abc")
self.assertEqual(len(buf), 3+1)
ctypes.set_conversion_mode("ascii", "replace")
buf = ctypes.create_unicode_buffer("ab")
self.assertEqual(buf[:], u"ab\uFFFD\uFFFD\uFFFD\0")
self.assertEqual(buf[::], u"ab\uFFFD\uFFFD\uFFFD\0")
self.assertEqual(buf[::-1], u"\0\uFFFD\uFFFD\uFFFDba")
self.assertEqual(buf[::2], u"a\uFFFD\uFFFD")
self.assertEqual(buf[6:5:-1], u"")
ctypes.set_conversion_mode("ascii", "ignore")
buf = ctypes.create_unicode_buffer("ab")
# is that correct? not sure. But with 'ignore', you get what you pay for..
self.assertEqual(buf[:], u"ab\0\0\0\0")
self.assertEqual(buf[::], u"ab\0\0\0\0")
self.assertEqual(buf[::-1], u"\0\0\0\0ba")
self.assertEqual(buf[::2], u"a\0\0")
self.assertEqual(buf[6:5:-1], u"")
@need_symbol('c_wchar')
class StringTestCase(UnicodeTestCase):
@classmethod
def setUpClass(cls):
super(StringTestCase, cls).setUpClass()
cls.func = ctypes.CDLL(_ctypes_test.__file__)._testfunc_p_p
def setUp(self):
func = self.func
self.prev_conv_mode = ctypes.set_conversion_mode("ascii", "strict")
func.argtypes = [ctypes.c_char_p]
func.restype = ctypes.c_char_p
def tearDown(self):
func = self.func
ctypes.set_conversion_mode(*self.prev_conv_mode)
func.argtypes = None
func.restype = ctypes.c_int
def test_ascii_replace(self):
func = self.func
ctypes.set_conversion_mode("ascii", "strict")
self.assertEqual(func("abc"), "abc")
self.assertEqual(func(u"abc"), "abc")
self.assertRaises(ctypes.ArgumentError, func, u"ab")
def test_ascii_ignore(self):
func = self.func
ctypes.set_conversion_mode("ascii", "ignore")
self.assertEqual(func("abc"), "abc")
self.assertEqual(func(u"abc"), "abc")
self.assertEqual(func(u""), "")
def test_ascii_replace(self):
func = self.func
ctypes.set_conversion_mode("ascii", "replace")
self.assertEqual(func("abc"), "abc")
self.assertEqual(func(u"abc"), "abc")
self.assertEqual(func(u""), "????")
def test_buffers(self):
ctypes.set_conversion_mode("ascii", "strict")
buf = ctypes.create_string_buffer(u"abc")
self.assertEqual(len(buf), 3+1)
ctypes.set_conversion_mode("ascii", "replace")
buf = ctypes.create_string_buffer(u"ab")
self.assertEqual(buf[:], "ab???\0")
self.assertEqual(buf[::], "ab???\0")
self.assertEqual(buf[::-1], "\0???ba")
self.assertEqual(buf[::2], "a??")
self.assertEqual(buf[6:5:-1], "")
ctypes.set_conversion_mode("ascii", "ignore")
buf = ctypes.create_string_buffer(u"ab")
# is that correct? not sure. But with 'ignore', you get what you pay for..
self.assertEqual(buf[:], "ab\0\0\0\0")
self.assertEqual(buf[::], "ab\0\0\0\0")
self.assertEqual(buf[::-1], "\0\0\0\0ba")
if __name__ == '__main__':
unittest.main()
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