| import unittest |
| from ctypes import * |
| |
| import _ctypes_test |
| |
| class SlicesTestCase(unittest.TestCase): |
| def test_getslice_cint(self): |
| a = (c_int * 100)(*xrange(1100, 1200)) |
| b = range(1100, 1200) |
| self.assertEqual(a[0:2], b[0:2]) |
| self.assertEqual(a[0:2:], b[0:2:]) |
| self.assertEqual(len(a), len(b)) |
| self.assertEqual(a[5:7], b[5:7]) |
| self.assertEqual(a[5:7:], b[5:7:]) |
| self.assertEqual(a[-1], b[-1]) |
| self.assertEqual(a[:], b[:]) |
| self.assertEqual(a[::], b[::]) |
| self.assertEqual(a[10::-1], b[10::-1]) |
| self.assertEqual(a[30:20:-1], b[30:20:-1]) |
| self.assertEqual(a[:12:6], b[:12:6]) |
| self.assertEqual(a[2:6:4], b[2:6:4]) |
| |
| a[0:5] = range(5, 10) |
| self.assertEqual(a[0:5], range(5, 10)) |
| self.assertEqual(a[0:5:], range(5, 10)) |
| self.assertEqual(a[4::-1], range(9, 4, -1)) |
| |
| def test_setslice_cint(self): |
| a = (c_int * 100)(*xrange(1100, 1200)) |
| b = range(1100, 1200) |
| |
| a[32:47] = range(32, 47) |
| self.assertEqual(a[32:47], range(32, 47)) |
| a[32:47] = range(132, 147) |
| self.assertEqual(a[32:47:], range(132, 147)) |
| a[46:31:-1] = range(232, 247) |
| self.assertEqual(a[32:47:1], range(246, 231, -1)) |
| |
| a[32:47] = range(1132, 1147) |
| self.assertEqual(a[:], b) |
| a[32:47:7] = range(3) |
| b[32:47:7] = range(3) |
| self.assertEqual(a[:], b) |
| a[33::-3] = range(12) |
| b[33::-3] = range(12) |
| self.assertEqual(a[:], b) |
| |
| from operator import setslice, setitem |
| |
| # TypeError: int expected instead of str instance |
| self.assertRaises(TypeError, setslice, a, 0, 5, "abcde") |
| self.assertRaises(TypeError, setitem, a, slice(0, 5), "abcde") |
| # TypeError: int expected instead of str instance |
| self.assertRaises(TypeError, setslice, a, 0, 5, ["a", "b", "c", "d", "e"]) |
| self.assertRaises(TypeError, setitem, a, slice(0, 5), |
| ["a", "b", "c", "d", "e"]) |
| # TypeError: int expected instead of float instance |
| self.assertRaises(TypeError, setslice, a, 0, 5, [1, 2, 3, 4, 3.14]) |
| self.assertRaises(TypeError, setitem, a, slice(0, 5), |
| [1, 2, 3, 4, 3.14]) |
| # ValueError: Can only assign sequence of same size |
| self.assertRaises(ValueError, setslice, a, 0, 5, range(32)) |
| self.assertRaises(ValueError, setitem, a, slice(0, 5), range(32)) |
| |
| def test_char_ptr(self): |
| s = "abcdefghijklmnopqrstuvwxyz" |
| |
| dll = CDLL(_ctypes_test.__file__) |
| dll.my_strdup.restype = POINTER(c_char) |
| dll.my_free.restype = None |
| res = dll.my_strdup(s) |
| self.assertEqual(res[:len(s)], s) |
| self.assertEqual(res[:3], s[:3]) |
| self.assertEqual(res[:len(s):], s) |
| self.assertEqual(res[len(s)-1:-1:-1], s[::-1]) |
| self.assertEqual(res[len(s)-1:5:-7], s[:5:-7]) |
| self.assertEqual(res[0:-1:-1], s[0::-1]) |
| |
| import operator |
| self.assertRaises(ValueError, operator.getitem, |
| res, slice(None, None, None)) |
| self.assertRaises(ValueError, operator.getitem, |
| res, slice(0, None, None)) |
| self.assertRaises(ValueError, operator.getitem, |
| res, slice(None, 5, -1)) |
| self.assertRaises(ValueError, operator.getitem, |
| res, slice(-5, None, None)) |
| |
| self.assertRaises(TypeError, operator.setslice, |
| res, 0, 5, u"abcde") |
| self.assertRaises(TypeError, operator.setitem, |
| res, slice(0, 5), u"abcde") |
| dll.my_free(res) |
| |
| dll.my_strdup.restype = POINTER(c_byte) |
| res = dll.my_strdup(s) |
| self.assertEqual(res[:len(s)], range(ord("a"), ord("z")+1)) |
| self.assertEqual(res[:len(s):], range(ord("a"), ord("z")+1)) |
| dll.my_free(res) |
| |
| def test_char_ptr_with_free(self): |
| dll = CDLL(_ctypes_test.__file__) |
| s = "abcdefghijklmnopqrstuvwxyz" |
| |
| class allocated_c_char_p(c_char_p): |
| pass |
| |
| dll.my_free.restype = None |
| def errcheck(result, func, args): |
| retval = result.value |
| dll.my_free(result) |
| return retval |
| |
| dll.my_strdup.restype = allocated_c_char_p |
| dll.my_strdup.errcheck = errcheck |
| try: |
| res = dll.my_strdup(s) |
| self.assertEqual(res, s) |
| finally: |
| del dll.my_strdup.errcheck |
| |
| |
| def test_char_array(self): |
| s = "abcdefghijklmnopqrstuvwxyz\0" |
| |
| p = (c_char * 27)(*s) |
| self.assertEqual(p[:], s) |
| self.assertEqual(p[::], s) |
| self.assertEqual(p[::-1], s[::-1]) |
| self.assertEqual(p[5::-2], s[5::-2]) |
| self.assertEqual(p[2:5:-3], s[2:5:-3]) |
| |
| |
| try: |
| c_wchar |
| except NameError: |
| pass |
| else: |
| def test_wchar_ptr(self): |
| s = u"abcdefghijklmnopqrstuvwxyz\0" |
| |
| dll = CDLL(_ctypes_test.__file__) |
| dll.my_wcsdup.restype = POINTER(c_wchar) |
| dll.my_wcsdup.argtypes = POINTER(c_wchar), |
| dll.my_free.restype = None |
| res = dll.my_wcsdup(s) |
| self.assertEqual(res[:len(s)], s) |
| self.assertEqual(res[:len(s):], s) |
| self.assertEqual(res[len(s)-1:-1:-1], s[::-1]) |
| self.assertEqual(res[len(s)-1:5:-7], s[:5:-7]) |
| |
| import operator |
| self.assertRaises(TypeError, operator.setslice, |
| res, 0, 5, u"abcde") |
| self.assertRaises(TypeError, operator.setitem, |
| res, slice(0, 5), u"abcde") |
| dll.my_free(res) |
| |
| if sizeof(c_wchar) == sizeof(c_short): |
| dll.my_wcsdup.restype = POINTER(c_short) |
| elif sizeof(c_wchar) == sizeof(c_int): |
| dll.my_wcsdup.restype = POINTER(c_int) |
| elif sizeof(c_wchar) == sizeof(c_long): |
| dll.my_wcsdup.restype = POINTER(c_long) |
| else: |
| return |
| res = dll.my_wcsdup(s) |
| tmpl = range(ord("a"), ord("z")+1) |
| self.assertEqual(res[:len(s)-1], tmpl) |
| self.assertEqual(res[:len(s)-1:], tmpl) |
| self.assertEqual(res[len(s)-2:-1:-1], tmpl[::-1]) |
| self.assertEqual(res[len(s)-2:5:-7], tmpl[:5:-7]) |
| dll.my_free(res) |
| |
| ################################################################ |
| |
| if __name__ == "__main__": |
| unittest.main() |
