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Issue #7449, part 5: split Test.test_open() of ctypes/test/test_errno.py 

* Split Test.test_open() in 2 functions: test_open() and test_thread_open()
 * Skip test_open() and test_thread_open() if we are unable to find the C
   library
 * Skip test_thread_open() if thread support is disabled
 * Use unittest.skipUnless(os.name == "nt", ...) on test_GetLastError()
This commit is contained in:
Victor Stinner 2010-04-27 22:01:24 +00:00
parent 613b4cf283
commit 9751472001
1 changed files with 62 additions and 54 deletions
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116
Lib/ctypes/test/test_errno.py
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@ -1,76 +1,84 @@
import unittest, os, errno
from ctypes import *
from ctypes.util import find_library
import threading
from test import test_support
try:
import threading
except ImportError:
threading = None
libc_name = find_library("c")
class Test(unittest.TestCase):
@unittest.skipUnless(libc_name, 'Unable to find the C library')
def test_open(self):
libc_name = find_library("c")
if libc_name is not None:
libc = CDLL(libc_name, use_errno=True)
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)
@unittest.skipUnless(libc_name, 'Unable to find the C library')
@unittest.skipUnless(threading, 'This test requires threading.')
def test_open_thread(self):
self.assertEqual(set_errno(32), errno.ENOENT)
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(), errno.ENOENT)
self.assertEqual(get_errno(), 0)
self.assertEqual(set_errno(32), errno.ENOENT)
self.assertEqual(get_errno(), 32)
t = threading.Thread(target=_worker)
t.start()
t.join()
self.assertEqual(get_errno(), 32)
set_errno(0)
def _worker():
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]
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)
self.assertEqual(0, GetModuleHandle("foo"))
self.assertEqual(get_last_error(), 126)
t = threading.Thread(target=_worker)
t.start()
t.join()
self.assertEqual(get_errno(), 32)
set_errno(0)
if os.name == "nt":
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)
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()