Python code coverage for Lib/ctypes/test/test_errno.py

#	count	content
1	n/a	import unittest, os, errno
2	n/a	from ctypes import *
3	n/a	from ctypes.util import find_library
4	n/a	try:
5	n/a	import threading
6	n/a	except ImportError:
7	n/a	threading = None
8	n/a
9	n/a	class Test(unittest.TestCase):
10	n/a	def test_open(self):
11	n/a	libc_name = find_library("c")
12	n/a	if libc_name is None:
13	n/a	raise unittest.SkipTest("Unable to find C library")
14	n/a	libc = CDLL(libc_name, use_errno=True)
15	n/a	if os.name == "nt":
16	n/a	libc_open = libc._open
17	n/a	else:
18	n/a	libc_open = libc.open
19	n/a
20	n/a	libc_open.argtypes = c_char_p, c_int
21	n/a
22	n/a	self.assertEqual(libc_open(b"", 0), -1)
23	n/a	self.assertEqual(get_errno(), errno.ENOENT)
24	n/a
25	n/a	self.assertEqual(set_errno(32), errno.ENOENT)
26	n/a	self.assertEqual(get_errno(), 32)
27	n/a
28	n/a	if threading:
29	n/a	def _worker():
30	n/a	set_errno(0)
31	n/a
32	n/a	libc = CDLL(libc_name, use_errno=False)
33	n/a	if os.name == "nt":
34	n/a	libc_open = libc._open
35	n/a	else:
36	n/a	libc_open = libc.open
37	n/a	libc_open.argtypes = c_char_p, c_int
38	n/a	self.assertEqual(libc_open(b"", 0), -1)
39	n/a	self.assertEqual(get_errno(), 0)
40	n/a
41	n/a	t = threading.Thread(target=_worker)
42	n/a	t.start()
43	n/a	t.join()
44	n/a
45	n/a	self.assertEqual(get_errno(), 32)
46	n/a	set_errno(0)
47	n/a
48	n/a	@unittest.skipUnless(os.name == "nt", 'Test specific to Windows')
49	n/a	def test_GetLastError(self):
50	n/a	dll = WinDLL("kernel32", use_last_error=True)
51	n/a	GetModuleHandle = dll.GetModuleHandleA
52	n/a	GetModuleHandle.argtypes = [c_wchar_p]
53	n/a
54	n/a	self.assertEqual(0, GetModuleHandle("foo"))
55	n/a	self.assertEqual(get_last_error(), 126)
56	n/a
57	n/a	self.assertEqual(set_last_error(32), 126)
58	n/a	self.assertEqual(get_last_error(), 32)
59	n/a
60	n/a	def _worker():
61	n/a	set_last_error(0)
62	n/a
63	n/a	dll = WinDLL("kernel32", use_last_error=False)
64	n/a	GetModuleHandle = dll.GetModuleHandleW
65	n/a	GetModuleHandle.argtypes = [c_wchar_p]
66	n/a	GetModuleHandle("bar")
67	n/a
68	n/a	self.assertEqual(get_last_error(), 0)
69	n/a
70	n/a	t = threading.Thread(target=_worker)
71	n/a	t.start()
72	n/a	t.join()
73	n/a
74	n/a	self.assertEqual(get_last_error(), 32)
75	n/a
76	n/a	set_last_error(0)
77	n/a
78	n/a	if __name__ == "__main__":
79	n/a	unittest.main()