def open(self):
if not self._is_open:
if not self.fake:
self._detach()
os.chdir(self.workdir)
if self.umask is not None:
os.umask(self.umask)
if self.after_chdir:
self.after_chdir()
if not self.fake:
# We need to keep /dev/urandom from closing because
# shelve needs it, and Beat needs shelve to start.
keep = list(self.stdfds) + fd_by_path(['/dev/urandom'])
close_open_fds(keep)
for fd in self.stdfds:
self.redirect_to_null(maybe_fileno(fd))
if self.after_forkers and mputil is not None:
mputil._run_after_forkers()
self._is_open = True
def test_maybe_fileno():
assert maybe_fileno(3) == 3
f = Mock(name='file')
assert maybe_fileno(f) is f.fileno()
f.fileno.side_effect = ValueError()
assert maybe_fileno(f) is None
def test_maybe_fileno():
assert maybe_fileno(3) == 3
f = Mock(name='file')
assert maybe_fileno(f) is f.fileno()
f.fileno.side_effect = ValueError()
assert maybe_fileno(f) is None
def test_maybe_fileno(self):
self.assertEqual(maybe_fileno(3), 3)
f = Mock(name='file')
self.assertIs(maybe_fileno(f), f.fileno())
f.fileno.side_effect = ValueError()
self.assertIsNone(maybe_fileno(f))
