/usr/lib/python2.7/test/test_epoll.py is in libpython2.7-testsuite 2.7.11-7ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 | # Copyright (c) 2001-2006 Twisted Matrix Laboratories.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
"""
Tests for epoll wrapper.
"""
import socket
import errno
import time
import select
import unittest
from test import test_support
if not hasattr(select, "epoll"):
raise unittest.SkipTest("test works only on Linux 2.6")
try:
select.epoll()
except IOError, e:
if e.errno == errno.ENOSYS:
raise unittest.SkipTest("kernel doesn't support epoll()")
raise
class TestEPoll(unittest.TestCase):
def setUp(self):
self.serverSocket = socket.socket()
self.serverSocket.bind(('127.0.0.1', 0))
self.serverSocket.listen(1)
self.connections = [self.serverSocket]
def tearDown(self):
for skt in self.connections:
skt.close()
def _connected_pair(self):
client = socket.socket()
client.setblocking(False)
try:
client.connect(('127.0.0.1', self.serverSocket.getsockname()[1]))
except socket.error, e:
self.assertEqual(e.args[0], errno.EINPROGRESS)
else:
raise AssertionError("Connect should have raised EINPROGRESS")
server, addr = self.serverSocket.accept()
self.connections.extend((client, server))
return client, server
def test_create(self):
try:
ep = select.epoll(16)
except OSError, e:
raise AssertionError(str(e))
self.assertTrue(ep.fileno() > 0, ep.fileno())
self.assertTrue(not ep.closed)
ep.close()
self.assertTrue(ep.closed)
self.assertRaises(ValueError, ep.fileno)
def test_badcreate(self):
self.assertRaises(TypeError, select.epoll, 1, 2, 3)
self.assertRaises(TypeError, select.epoll, 'foo')
self.assertRaises(TypeError, select.epoll, None)
self.assertRaises(TypeError, select.epoll, ())
self.assertRaises(TypeError, select.epoll, ['foo'])
self.assertRaises(TypeError, select.epoll, {})
def test_add(self):
server, client = self._connected_pair()
ep = select.epoll(2)
try:
ep.register(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep.register(client.fileno(), select.EPOLLIN | select.EPOLLOUT)
finally:
ep.close()
# adding by object w/ fileno works, too.
ep = select.epoll(2)
try:
ep.register(server, select.EPOLLIN | select.EPOLLOUT)
ep.register(client, select.EPOLLIN | select.EPOLLOUT)
finally:
ep.close()
ep = select.epoll(2)
try:
# TypeError: argument must be an int, or have a fileno() method.
self.assertRaises(TypeError, ep.register, object(),
select.EPOLLIN | select.EPOLLOUT)
self.assertRaises(TypeError, ep.register, None,
select.EPOLLIN | select.EPOLLOUT)
# ValueError: file descriptor cannot be a negative integer (-1)
self.assertRaises(ValueError, ep.register, -1,
select.EPOLLIN | select.EPOLLOUT)
# IOError: [Errno 9] Bad file descriptor
self.assertRaises(IOError, ep.register, 10000,
select.EPOLLIN | select.EPOLLOUT)
# registering twice also raises an exception
ep.register(server, select.EPOLLIN | select.EPOLLOUT)
self.assertRaises(IOError, ep.register, server,
select.EPOLLIN | select.EPOLLOUT)
finally:
ep.close()
def test_fromfd(self):
server, client = self._connected_pair()
ep = select.epoll(2)
ep2 = select.epoll.fromfd(ep.fileno())
ep2.register(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep2.register(client.fileno(), select.EPOLLIN | select.EPOLLOUT)
events = ep.poll(1, 4)
events2 = ep2.poll(0.9, 4)
self.assertEqual(len(events), 2)
self.assertEqual(len(events2), 2)
ep.close()
try:
ep2.poll(1, 4)
except IOError, e:
self.assertEqual(e.args[0], errno.EBADF, e)
else:
self.fail("epoll on closed fd didn't raise EBADF")
def test_control_and_wait(self):
client, server = self._connected_pair()
ep = select.epoll(16)
ep.register(server.fileno(),
select.EPOLLIN | select.EPOLLOUT | select.EPOLLET)
ep.register(client.fileno(),
select.EPOLLIN | select.EPOLLOUT | select.EPOLLET)
now = time.time()
events = ep.poll(1, 4)
then = time.time()
self.assertFalse(then - now > 0.1, then - now)
events.sort()
expected = [(client.fileno(), select.EPOLLOUT),
(server.fileno(), select.EPOLLOUT)]
expected.sort()
self.assertEqual(events, expected)
events = ep.poll(timeout=2.1, maxevents=4)
self.assertFalse(events)
client.send("Hello!")
server.send("world!!!")
now = time.time()
events = ep.poll(1, 4)
then = time.time()
self.assertFalse(then - now > 0.01)
events.sort()
expected = [(client.fileno(), select.EPOLLIN | select.EPOLLOUT),
(server.fileno(), select.EPOLLIN | select.EPOLLOUT)]
expected.sort()
self.assertEqual(events, expected)
ep.unregister(client.fileno())
ep.modify(server.fileno(), select.EPOLLOUT)
now = time.time()
events = ep.poll(1, 4)
then = time.time()
self.assertFalse(then - now > 0.01)
expected = [(server.fileno(), select.EPOLLOUT)]
self.assertEqual(events, expected)
def test_errors(self):
self.assertRaises(ValueError, select.epoll, -2)
self.assertRaises(ValueError, select.epoll().register, -1,
select.EPOLLIN)
def test_unregister_closed(self):
server, client = self._connected_pair()
fd = server.fileno()
ep = select.epoll(16)
ep.register(server)
now = time.time()
events = ep.poll(1, 4)
then = time.time()
self.assertFalse(then - now > 0.01)
server.close()
ep.unregister(fd)
def test_main():
test_support.run_unittest(TestEPoll)
if __name__ == "__main__":
test_main()
|