| import unittest, os, errno |
| from ctypes import * |
| from ctypes.util import find_library |
| from test import test_support |
| try: |
| import threading |
| except ImportError: |
| threading = None |
| |
| class Test(unittest.TestCase): |
| def test_open(self): |
| libc_name = find_library("c") |
| if libc_name is None: |
| raise unittest.SkipTest("Unable to find C library") |
| libc = CDLL(libc_name, use_errno=True) |
| if os.name == "nt": |
| libc_open = libc._open |
| else: |
| libc_open = libc.open |
| |
| libc_open.argtypes = c_char_p, c_int |
| |
| self.assertEqual(libc_open("", 0), -1) |
| self.assertEqual(get_errno(), errno.ENOENT) |
| |
| self.assertEqual(set_errno(32), errno.ENOENT) |
| self.assertEqual(get_errno(), 32) |
| |
| if threading: |
| def _worker(): |
| set_errno(0) |
| |
| libc = CDLL(libc_name, use_errno=False) |
| if os.name == "nt": |
| libc_open = libc._open |
| else: |
| libc_open = libc.open |
| libc_open.argtypes = c_char_p, c_int |
| self.assertEqual(libc_open("", 0), -1) |
| self.assertEqual(get_errno(), 0) |
| |
| t = threading.Thread(target=_worker) |
| t.start() |
| t.join() |
| |
| self.assertEqual(get_errno(), 32) |
| set_errno(0) |
| |
| @unittest.skipUnless(os.name == "nt", 'Test specific to Windows') |
| def test_GetLastError(self): |
| dll = WinDLL("kernel32", use_last_error=True) |
| GetModuleHandle = dll.GetModuleHandleA |
| GetModuleHandle.argtypes = [c_wchar_p] |
| |
| self.assertEqual(0, GetModuleHandle("foo")) |
| self.assertEqual(get_last_error(), 126) |
| |
| self.assertEqual(set_last_error(32), 126) |
| self.assertEqual(get_last_error(), 32) |
| |
| def _worker(): |
| set_last_error(0) |
| |
| dll = WinDLL("kernel32", use_last_error=False) |
| GetModuleHandle = dll.GetModuleHandleW |
| GetModuleHandle.argtypes = [c_wchar_p] |
| GetModuleHandle("bar") |
| |
| self.assertEqual(get_last_error(), 0) |
| |
| t = threading.Thread(target=_worker) |
| t.start() |
| t.join() |
| |
| self.assertEqual(get_last_error(), 32) |
| |
| set_last_error(0) |
| |
| if __name__ == "__main__": |
| unittest.main() |
