You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
143 lines
4.4 KiB
143 lines
4.4 KiB
# Test case for the select.devpoll() function
|
|
|
|
# Initial tests are copied as is from "test_poll.py"
|
|
|
|
import os
|
|
import random
|
|
import select
|
|
import unittest
|
|
from test.support import cpython_only
|
|
|
|
if not hasattr(select, 'devpoll') :
|
|
raise unittest.SkipTest('test works only on Solaris OS family')
|
|
|
|
|
|
def find_ready_matching(ready, flag):
|
|
match = []
|
|
for fd, mode in ready:
|
|
if mode & flag:
|
|
match.append(fd)
|
|
return match
|
|
|
|
class DevPollTests(unittest.TestCase):
|
|
|
|
def test_devpoll1(self):
|
|
# Basic functional test of poll object
|
|
# Create a bunch of pipe and test that poll works with them.
|
|
|
|
p = select.devpoll()
|
|
|
|
NUM_PIPES = 12
|
|
MSG = b" This is a test."
|
|
MSG_LEN = len(MSG)
|
|
readers = []
|
|
writers = []
|
|
r2w = {}
|
|
w2r = {}
|
|
|
|
for i in range(NUM_PIPES):
|
|
rd, wr = os.pipe()
|
|
p.register(rd)
|
|
p.modify(rd, select.POLLIN)
|
|
p.register(wr, select.POLLOUT)
|
|
readers.append(rd)
|
|
writers.append(wr)
|
|
r2w[rd] = wr
|
|
w2r[wr] = rd
|
|
|
|
bufs = []
|
|
|
|
while writers:
|
|
ready = p.poll()
|
|
ready_writers = find_ready_matching(ready, select.POLLOUT)
|
|
if not ready_writers:
|
|
self.fail("no pipes ready for writing")
|
|
wr = random.choice(ready_writers)
|
|
os.write(wr, MSG)
|
|
|
|
ready = p.poll()
|
|
ready_readers = find_ready_matching(ready, select.POLLIN)
|
|
if not ready_readers:
|
|
self.fail("no pipes ready for reading")
|
|
self.assertEqual([w2r[wr]], ready_readers)
|
|
rd = ready_readers[0]
|
|
buf = os.read(rd, MSG_LEN)
|
|
self.assertEqual(len(buf), MSG_LEN)
|
|
bufs.append(buf)
|
|
os.close(r2w[rd]) ; os.close(rd)
|
|
p.unregister(r2w[rd])
|
|
p.unregister(rd)
|
|
writers.remove(r2w[rd])
|
|
|
|
self.assertEqual(bufs, [MSG] * NUM_PIPES)
|
|
|
|
def test_timeout_overflow(self):
|
|
pollster = select.devpoll()
|
|
w, r = os.pipe()
|
|
pollster.register(w)
|
|
|
|
pollster.poll(-1)
|
|
self.assertRaises(OverflowError, pollster.poll, -2)
|
|
self.assertRaises(OverflowError, pollster.poll, -1 << 31)
|
|
self.assertRaises(OverflowError, pollster.poll, -1 << 64)
|
|
|
|
pollster.poll(0)
|
|
pollster.poll(1)
|
|
pollster.poll(1 << 30)
|
|
self.assertRaises(OverflowError, pollster.poll, 1 << 31)
|
|
self.assertRaises(OverflowError, pollster.poll, 1 << 63)
|
|
self.assertRaises(OverflowError, pollster.poll, 1 << 64)
|
|
|
|
def test_close(self):
|
|
open_file = open(__file__, "rb")
|
|
self.addCleanup(open_file.close)
|
|
fd = open_file.fileno()
|
|
devpoll = select.devpoll()
|
|
|
|
# test fileno() method and closed attribute
|
|
self.assertIsInstance(devpoll.fileno(), int)
|
|
self.assertFalse(devpoll.closed)
|
|
|
|
# test close()
|
|
devpoll.close()
|
|
self.assertTrue(devpoll.closed)
|
|
self.assertRaises(ValueError, devpoll.fileno)
|
|
|
|
# close() can be called more than once
|
|
devpoll.close()
|
|
|
|
# operations must fail with ValueError("I/O operation on closed ...")
|
|
self.assertRaises(ValueError, devpoll.modify, fd, select.POLLIN)
|
|
self.assertRaises(ValueError, devpoll.poll)
|
|
self.assertRaises(ValueError, devpoll.register, fd, select.POLLIN)
|
|
self.assertRaises(ValueError, devpoll.unregister, fd)
|
|
|
|
def test_fd_non_inheritable(self):
|
|
devpoll = select.devpoll()
|
|
self.addCleanup(devpoll.close)
|
|
self.assertEqual(os.get_inheritable(devpoll.fileno()), False)
|
|
|
|
def test_events_mask_overflow(self):
|
|
pollster = select.devpoll()
|
|
w, r = os.pipe()
|
|
pollster.register(w)
|
|
# Issue #17919
|
|
self.assertRaises(ValueError, pollster.register, 0, -1)
|
|
self.assertRaises(OverflowError, pollster.register, 0, 1 << 64)
|
|
self.assertRaises(ValueError, pollster.modify, 1, -1)
|
|
self.assertRaises(OverflowError, pollster.modify, 1, 1 << 64)
|
|
|
|
@cpython_only
|
|
def test_events_mask_overflow_c_limits(self):
|
|
from _testcapi import USHRT_MAX
|
|
pollster = select.devpoll()
|
|
w, r = os.pipe()
|
|
pollster.register(w)
|
|
# Issue #17919
|
|
self.assertRaises(OverflowError, pollster.register, 0, USHRT_MAX + 1)
|
|
self.assertRaises(OverflowError, pollster.modify, 1, USHRT_MAX + 1)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|