self.assertEqual(ret, 0)
self.assertEqual(atexit._ncallbacks(), n)
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_callback_on_subinterpreter_teardown(self):
# This tests if a callback is called on
# subinterpreter teardown.
class SubinterpreterTest(unittest.TestCase):
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_subinterps(self):
import builtins
r, w = os.pipe()
self.assertNotEqual(pickle.load(f), id(sys.modules))
self.assertNotEqual(pickle.load(f), id(builtins))
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_subinterps_recent_language_features(self):
r, w = os.pipe()
code = """if 1:
@unittest.skipIf(
support.is_emscripten, "fstat() of a pipe fd is not supported"
)
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_optional_abilities(self):
# Test for OSError when optional APIs are not supported
# The purpose of this test is to try fileno(), reading, writing and
@unittest.skipIf(
support.is_emscripten, "fstat() of a pipe fd is not supported"
)
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_open_pipe_with_append(self):
# bpo-27805: Ignore ESPIPE from lseek() in open().
r, w = os.pipe()
with warnings_helper.check_no_resource_warning(self):
open(r, *args, closefd=False, **kwargs)
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_warn_on_dealloc_fd(self):
self._check_warn_on_dealloc_fd("rb", buffering=0)
self._check_warn_on_dealloc_fd("rb")
@unittest.skipUnless(hasattr(os, 'set_blocking'),
'os.set_blocking() required for this test')
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def _test_nonblock_pipe_write(self, bufsize):
sent = []
received = []
raise
@requires_alarm
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_interrupted_write_unbuffered(self):
self.check_interrupted_write(b"xy", b"xy", mode="wb", buffering=0)
@requires_alarm
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_interrupted_write_buffered(self):
self.check_interrupted_write(b"xy", b"xy", mode="wb")
@requires_alarm
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_interrupted_write_text(self):
self.check_interrupted_write("xy", b"xy", mode="w", encoding="ascii")
# Emscripten does not support fstat on pipes yet.
# https://github.com/emscripten-core/emscripten/issues/16414
@unittest.skipIf(support.is_emscripten, "Emscripten cannot fstat pipes.")
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_set_wakeup_fd_result(self):
r1, w1 = os.pipe()
self.addCleanup(os.close, r1)
# function to test if a socket is in non-blocking mode.
@unittest.skipIf(sys.platform == "win32", "tests specific to POSIX")
@unittest.skipIf(support.is_emscripten, "Emscripten cannot fstat pipes.")
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_set_wakeup_fd_blocking(self):
rfd, wfd = os.pipe()
self.addCleanup(os.close, rfd)
assert_python_ok('-c', code)
@unittest.skipIf(_testcapi is None, 'need _testcapi')
+ @unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_wakeup_write_error(self):
# Issue #16105: write() errors in the C signal handler should not
# pass silently.
@unittest.skipIf(sys.platform == "win32", "Not valid on Windows")
@unittest.skipUnless(hasattr(signal, 'siginterrupt'), "needs signal.siginterrupt()")
@support.requires_subprocess()
+@unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
class SiginterruptTest(unittest.TestCase):
def readpipe_interrupted(self, interrupt):