lib-python.2.7.test.test_timeout.py Maven / Gradle / Ivy
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Jython is an implementation of the high-level, dynamic, object-oriented
language Python written in 100% Pure Java, and seamlessly integrated with
the Java platform. It thus allows you to run Python on any Java platform.
"""Unit tests for socket timeout feature."""
import unittest
from test import test_support
# This requires the 'network' resource as given on the regrtest command line.
skip_expected = not test_support.is_resource_enabled('network')
import time
import socket
class CreationTestCase(unittest.TestCase):
"""Test case for socket.gettimeout() and socket.settimeout()"""
def setUp(self):
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
def tearDown(self):
self.sock.close()
def testObjectCreation(self):
# Test Socket creation
self.assertEqual(self.sock.gettimeout(), None,
"timeout not disabled by default")
def testFloatReturnValue(self):
# Test return value of gettimeout()
self.sock.settimeout(7.345)
self.assertEqual(self.sock.gettimeout(), 7.345)
self.sock.settimeout(3)
self.assertEqual(self.sock.gettimeout(), 3)
self.sock.settimeout(None)
self.assertEqual(self.sock.gettimeout(), None)
def testReturnType(self):
# Test return type of gettimeout()
self.sock.settimeout(1)
self.assertEqual(type(self.sock.gettimeout()), type(1.0))
self.sock.settimeout(3.9)
self.assertEqual(type(self.sock.gettimeout()), type(1.0))
def testTypeCheck(self):
# Test type checking by settimeout()
self.sock.settimeout(0)
self.sock.settimeout(0L)
self.sock.settimeout(0.0)
self.sock.settimeout(None)
self.assertRaises(TypeError, self.sock.settimeout, "")
self.assertRaises(TypeError, self.sock.settimeout, u"")
self.assertRaises(TypeError, self.sock.settimeout, ())
self.assertRaises(TypeError, self.sock.settimeout, [])
self.assertRaises(TypeError, self.sock.settimeout, {})
self.assertRaises(TypeError, self.sock.settimeout, 0j)
def testRangeCheck(self):
# Test range checking by settimeout()
self.assertRaises(ValueError, self.sock.settimeout, -1)
self.assertRaises(ValueError, self.sock.settimeout, -1L)
self.assertRaises(ValueError, self.sock.settimeout, -1.0)
def testTimeoutThenBlocking(self):
# Test settimeout() followed by setblocking()
self.sock.settimeout(10)
self.sock.setblocking(1)
self.assertEqual(self.sock.gettimeout(), None)
self.sock.setblocking(0)
self.assertEqual(self.sock.gettimeout(), 0.0)
self.sock.settimeout(10)
self.sock.setblocking(0)
self.assertEqual(self.sock.gettimeout(), 0.0)
self.sock.setblocking(1)
self.assertEqual(self.sock.gettimeout(), None)
def testBlockingThenTimeout(self):
# Test setblocking() followed by settimeout()
self.sock.setblocking(0)
self.sock.settimeout(1)
self.assertEqual(self.sock.gettimeout(), 1)
self.sock.setblocking(1)
self.sock.settimeout(1)
self.assertEqual(self.sock.gettimeout(), 1)
class TimeoutTestCase(unittest.TestCase):
"""Test case for socket.socket() timeout functions"""
# There are a number of tests here trying to make sure that an operation
# doesn't take too much longer than expected. But competing machine
# activity makes it inevitable that such tests will fail at times.
# When fuzz was at 1.0, I (tim) routinely saw bogus failures on Win2K
# and Win98SE. Boosting it to 2.0 helped a lot, but isn't a real
# solution.
fuzz = 2.0
def setUp(self):
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.addr_remote = ('www.python.org.', 80)
self.localhost = '127.0.0.1'
def tearDown(self):
self.sock.close()
def testConnectTimeout(self):
# Choose a private address that is unlikely to exist to prevent
# failures due to the connect succeeding before the timeout.
# Use a dotted IP address to avoid including the DNS lookup time
# with the connect time. This avoids failing the assertion that
# the timeout occurred fast enough.
addr = ('10.0.0.0', 12345)
# Test connect() timeout
_timeout = 0.001
self.sock.settimeout(_timeout)
_t1 = time.time()
self.assertRaises(socket.error, self.sock.connect, addr)
_t2 = time.time()
_delta = abs(_t1 - _t2)
self.assertTrue(_delta < _timeout + self.fuzz,
"timeout (%g) is more than %g seconds more than expected (%g)"
%(_delta, self.fuzz, _timeout))
def testRecvTimeout(self):
# Test recv() timeout
_timeout = 0.02
with test_support.transient_internet(self.addr_remote[0]):
self.sock.connect(self.addr_remote)
self.sock.settimeout(_timeout)
_t1 = time.time()
self.assertRaises(socket.timeout, self.sock.recv, 1024)
_t2 = time.time()
_delta = abs(_t1 - _t2)
self.assertTrue(_delta < _timeout + self.fuzz,
"timeout (%g) is %g seconds more than expected (%g)"
%(_delta, self.fuzz, _timeout))
def testAcceptTimeout(self):
# Test accept() timeout
_timeout = 2
self.sock.settimeout(_timeout)
# Prevent "Address already in use" socket exceptions
test_support.bind_port(self.sock, self.localhost)
self.sock.listen(5)
_t1 = time.time()
self.assertRaises(socket.error, self.sock.accept)
_t2 = time.time()
_delta = abs(_t1 - _t2)
self.assertTrue(_delta < _timeout + self.fuzz,
"timeout (%g) is %g seconds more than expected (%g)"
%(_delta, self.fuzz, _timeout))
def testRecvfromTimeout(self):
# Test recvfrom() timeout
_timeout = 2
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.sock.settimeout(_timeout)
# Prevent "Address already in use" socket exceptions
test_support.bind_port(self.sock, self.localhost)
_t1 = time.time()
self.assertRaises(socket.error, self.sock.recvfrom, 8192)
_t2 = time.time()
_delta = abs(_t1 - _t2)
self.assertTrue(_delta < _timeout + self.fuzz,
"timeout (%g) is %g seconds more than expected (%g)"
%(_delta, self.fuzz, _timeout))
def testSend(self):
# Test send() timeout
# couldn't figure out how to test it
pass
def testSendto(self):
# Test sendto() timeout
# couldn't figure out how to test it
pass
def testSendall(self):
# Test sendall() timeout
# couldn't figure out how to test it
pass
def test_main():
test_support.requires('network')
test_support.run_unittest(CreationTestCase, TimeoutTestCase)
if __name__ == "__main__":
test_main()