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Issue #18904: Improve os.get/set_inheritable() tests

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This commit is contained in:
Victor Stinner 2013-09-08 11:47:54 +02:00
parent 8898350076
commit 7ba6b0f943
1 changed files with 29 additions and 7 deletions
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36
Lib/test/test_os.py
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@ -34,6 +34,10 @@ try:
import resource
except ImportError:
resource = None
try:
import fcntl
except ImportError:
fcntl = None
from test.script_helper import assert_python_ok
@ -2300,19 +2304,37 @@ class CPUCountTests(unittest.TestCase):
class FDInheritanceTests(unittest.TestCase):
def test_get_inheritable(self):
def test_get_set_inheritable(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
for inheritable in (False, True):
os.set_inheritable(fd, inheritable)
self.assertEqual(os.get_inheritable(fd), inheritable)
self.assertEqual(os.get_inheritable(fd), False)
def test_set_inheritable(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
os.set_inheritable(fd, True)
self.assertEqual(os.get_inheritable(fd), True)
if fcntl:
def test_get_inheritable_cloexec(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
self.assertEqual(os.get_inheritable(fd), False)
# clear FD_CLOEXEC flag
flags = fcntl.fcntl(fd, fcntl.F_GETFD)
flags &= ~fcntl.FD_CLOEXEC
fcntl.fcntl(fd, fcntl.F_SETFD, flags)
self.assertEqual(os.get_inheritable(fd), True)
def test_set_inheritable_cloexec(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)
self.assertEqual(fcntl.fcntl(fd, fcntl.F_GETFD) & fcntl.FD_CLOEXEC,
fcntl.FD_CLOEXEC)
os.set_inheritable(fd, True)
self.assertEqual(fcntl.fcntl(fd, fcntl.F_GETFD) & fcntl.FD_CLOEXEC,
0)
def test_open(self):
fd = os.open(__file__, os.O_RDONLY)
self.addCleanup(os.close, fd)