traverseda
/
cpython
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
cpython/Lib/test/test_socket.py

1818 lines
62 KiB
Python
Raw Blame History

import unittest
from test import test_support
import errno
import itertools
import socket
import select
import time
import traceback
import Queue
import sys
import os
import array
import contextlib
import signal
import math
import weakref
try:
import _socket
except ImportError:
_socket = None
def try_address(host, port=0, family=socket.AF_INET):
"""Try to bind a socket on the given host:port and return True
if that has been possible."""
try:
sock = socket.socket(family, socket.SOCK_STREAM)
sock.bind((host, port))
except (socket.error, socket.gaierror):
return False
else:
sock.close()
return True
HOST = test_support.HOST
MSG = b'Michael Gilfix was here\n'
SUPPORTS_IPV6 = test_support.IPV6_ENABLED
try:
import thread
import threading
except ImportError:
thread = None
threading = None
HOST = test_support.HOST
MSG = 'Michael Gilfix was here\n'
class SocketTCPTest(unittest.TestCase):
def setUp(self):
self.serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.port = test_support.bind_port(self.serv)
self.serv.listen(1)
def tearDown(self):
self.serv.close()
self.serv = None
class SocketUDPTest(unittest.TestCase):
def setUp(self):
self.serv = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.port = test_support.bind_port(self.serv)
def tearDown(self):
self.serv.close()
self.serv = None
class ThreadableTest:
"""Threadable Test class
The ThreadableTest class makes it easy to create a threaded
client/server pair from an existing unit test. To create a
new threaded class from an existing unit test, use multiple
inheritance:
class NewClass (OldClass, ThreadableTest):
pass
This class defines two new fixture functions with obvious
purposes for overriding:
clientSetUp ()
clientTearDown ()
Any new test functions within the class must then define
tests in pairs, where the test name is preceded with a
'_' to indicate the client portion of the test. Ex:
def testFoo(self):
# Server portion
def _testFoo(self):
# Client portion
Any exceptions raised by the clients during their tests
are caught and transferred to the main thread to alert
the testing framework.
Note, the server setup function cannot call any blocking
functions that rely on the client thread during setup,
unless serverExplicitReady() is called just before
the blocking call (such as in setting up a client/server
connection and performing the accept() in setUp().
"""
def __init__(self):
# Swap the true setup function
self.__setUp = self.setUp
self.__tearDown = self.tearDown
self.setUp = self._setUp
self.tearDown = self._tearDown
def serverExplicitReady(self):
"""This method allows the server to explicitly indicate that
it wants the client thread to proceed. This is useful if the
server is about to execute a blocking routine that is
dependent upon the client thread during its setup routine."""
self.server_ready.set()
def _setUp(self):
self.server_ready = threading.Event()
self.client_ready = threading.Event()
self.done = threading.Event()
self.queue = Queue.Queue(1)
# Do some munging to start the client test.
methodname = self.id()
i = methodname.rfind('.')
methodname = methodname[i+1:]
test_method = getattr(self, '_' + methodname)
self.client_thread = thread.start_new_thread(
self.clientRun, (test_method,))
self.__setUp()
if not self.server_ready.is_set():
self.server_ready.set()
self.client_ready.wait()
def _tearDown(self):
self.__tearDown()
self.done.wait()
if not self.queue.empty():
msg = self.queue.get()
self.fail(msg)
def clientRun(self, test_func):
self.server_ready.wait()
self.clientSetUp()
self.client_ready.set()
if not callable(test_func):
raise TypeError("test_func must be a callable function.")
try:
test_func()
except Exception, strerror:
self.queue.put(strerror)
self.clientTearDown()
def clientSetUp(self):
raise NotImplementedError("clientSetUp must be implemented.")
def clientTearDown(self):
self.done.set()
thread.exit()
class ThreadedTCPSocketTest(SocketTCPTest, ThreadableTest):
def __init__(self, methodName='runTest'):
SocketTCPTest.__init__(self, methodName=methodName)
ThreadableTest.__init__(self)
def clientSetUp(self):
self.cli = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
def clientTearDown(self):
self.cli.close()
self.cli = None
ThreadableTest.clientTearDown(self)
class ThreadedUDPSocketTest(SocketUDPTest, ThreadableTest):
def __init__(self, methodName='runTest'):
SocketUDPTest.__init__(self, methodName=methodName)
ThreadableTest.__init__(self)
def clientSetUp(self):
self.cli = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
def clientTearDown(self):
self.cli.close()
self.cli = None
ThreadableTest.clientTearDown(self)
class SocketConnectedTest(ThreadedTCPSocketTest):
def __init__(self, methodName='runTest'):
ThreadedTCPSocketTest.__init__(self, methodName=methodName)
def setUp(self):
ThreadedTCPSocketTest.setUp(self)
# Indicate explicitly we're ready for the client thread to
# proceed and then perform the blocking call to accept
self.serverExplicitReady()
conn, addr = self.serv.accept()
self.cli_conn = conn
def tearDown(self):
self.cli_conn.close()
self.cli_conn = None
ThreadedTCPSocketTest.tearDown(self)
def clientSetUp(self):
ThreadedTCPSocketTest.clientSetUp(self)
self.cli.connect((HOST, self.port))
self.serv_conn = self.cli
def clientTearDown(self):
self.serv_conn.close()
self.serv_conn = None
ThreadedTCPSocketTest.clientTearDown(self)
class SocketPairTest(unittest.TestCase, ThreadableTest):
def __init__(self, methodName='runTest'):
unittest.TestCase.__init__(self, methodName=methodName)
ThreadableTest.__init__(self)
def setUp(self):
self.serv, self.cli = socket.socketpair()
def tearDown(self):
self.serv.close()
self.serv = None
def clientSetUp(self):
pass
def clientTearDown(self):
self.cli.close()
self.cli = None
ThreadableTest.clientTearDown(self)
#######################################################################
## Begin Tests
class GeneralModuleTests(unittest.TestCase):
@unittest.skipUnless(_socket is not None, 'need _socket module')
def test_csocket_repr(self):
s = _socket.socket(_socket.AF_INET, _socket.SOCK_STREAM)
try:
expected = ('<socket object, fd=%s, family=%s, type=%s, protocol=%s>'
% (s.fileno(), s.family, s.type, s.proto))
self.assertEqual(repr(s), expected)
finally:
s.close()
expected = ('<socket object, fd=-1, family=%s, type=%s, protocol=%s>'
% (s.family, s.type, s.proto))
self.assertEqual(repr(s), expected)
def test_weakref(self):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
p = weakref.proxy(s)
self.assertEqual(p.fileno(), s.fileno())
s.close()
s = None
try:
p.fileno()
except ReferenceError:
pass
else:
self.fail('Socket proxy still exists')
def test_weakref__sock(self):
s = socket.socket()._sock
w = weakref.ref(s)
self.assertIs(w(), s)
del s
test_support.gc_collect()
self.assertIsNone(w())
def testSocketError(self):
# Testing socket module exceptions
def raise_error(*args, **kwargs):
raise socket.error
def raise_herror(*args, **kwargs):
raise socket.herror
def raise_gaierror(*args, **kwargs):
raise socket.gaierror
self.assertRaises(socket.error, raise_error,
"Error raising socket exception.")
self.assertRaises(socket.error, raise_herror,
"Error raising socket exception.")
self.assertRaises(socket.error, raise_gaierror,
"Error raising socket exception.")
def testSendtoErrors(self):
# Testing that sendto doesn't mask failures. See #10169.
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.addCleanup(s.close)
s.bind(('', 0))
sockname = s.getsockname()
# 2 args
with self.assertRaises(UnicodeEncodeError):
s.sendto(u'\u2620', sockname)
with self.assertRaises(TypeError) as cm:
s.sendto(5j, sockname)
self.assertIn('not complex', str(cm.exception))
with self.assertRaises(TypeError) as cm:
s.sendto('foo', None)
self.assertIn('not NoneType', str(cm.exception))
# 3 args
with self.assertRaises(UnicodeEncodeError):
s.sendto(u'\u2620', 0, sockname)
with self.assertRaises(TypeError) as cm:
s.sendto(5j, 0, sockname)
self.assertIn('not complex', str(cm.exception))
with self.assertRaises(TypeError) as cm:
s.sendto('foo', 0, None)
self.assertIn('not NoneType', str(cm.exception))
with self.assertRaises(TypeError) as cm:
s.sendto('foo', 'bar', sockname)
self.assertIn('an integer is required', str(cm.exception))
with self.assertRaises(TypeError) as cm:
s.sendto('foo', None, None)
self.assertIn('an integer is required', str(cm.exception))
# wrong number of args
with self.assertRaises(TypeError) as cm:
s.sendto('foo')
self.assertIn('(1 given)', str(cm.exception))
with self.assertRaises(TypeError) as cm:
s.sendto('foo', 0, sockname, 4)
self.assertIn('(4 given)', str(cm.exception))
def testCrucialConstants(self):
# Testing for mission critical constants
socket.AF_INET
socket.SOCK_STREAM
socket.SOCK_DGRAM
socket.SOCK_RAW
socket.SOCK_RDM
socket.SOCK_SEQPACKET
socket.SOL_SOCKET
socket.SO_REUSEADDR
def testHostnameRes(self):
# Testing hostname resolution mechanisms
hostname = socket.gethostname()
try:
ip = socket.gethostbyname(hostname)
except socket.error:
# Probably name lookup wasn't set up right; skip this test
self.skipTest('name lookup failure')
self.assertTrue(ip.find('.') >= 0, "Error resolving host to ip.")
try:
hname, aliases, ipaddrs = socket.gethostbyaddr(ip)
except socket.error:
# Probably a similar problem as above; skip this test
self.skipTest('address lookup failure')
all_host_names = [hostname, hname] + aliases
fqhn = socket.getfqdn(ip)
if not fqhn in all_host_names:
self.fail("Error testing host resolution mechanisms. (fqdn: %s, all: %s)" % (fqhn, repr(all_host_names)))
@unittest.skipUnless(hasattr(sys, 'getrefcount'),
'test needs sys.getrefcount()')
def testRefCountGetNameInfo(self):
# Testing reference count for getnameinfo
try:
# On some versions, this loses a reference
orig = sys.getrefcount(__name__)
socket.getnameinfo(__name__,0)
except TypeError:
self.assertEqual(sys.getrefcount(__name__), orig,
"socket.getnameinfo loses a reference")
def testInterpreterCrash(self):
# Making sure getnameinfo doesn't crash the interpreter
try:
# On some versions, this crashes the interpreter.
socket.getnameinfo(('x', 0, 0, 0), 0)
except socket.error:
pass
def testNtoH(self):
# This just checks that htons etc. are their own inverse,
# when looking at the lower 16 or 32 bits.
sizes = {socket.htonl: 32, socket.ntohl: 32,
socket.htons: 16, socket.ntohs: 16}
for func, size in sizes.items():
mask = (1L<<size) - 1
for i in (0, 1, 0xffff, ~0xffff, 2, 0x01234567, 0x76543210):
self.assertEqual(i & mask, func(func(i&mask)) & mask)
swapped = func(mask)
self.assertEqual(swapped & mask, mask)
self.assertRaises(OverflowError, func, 1L<<34)
def testNtoHErrors(self):
good_values = [ 1, 2, 3, 1L, 2L, 3L ]
bad_values = [ -1, -2, -3, -1L, -2L, -3L ]
for k in good_values:
socket.ntohl(k)
socket.ntohs(k)
socket.htonl(k)
socket.htons(k)
for k in bad_values:
self.assertRaises(OverflowError, socket.ntohl, k)
self.assertRaises(OverflowError, socket.ntohs, k)
self.assertRaises(OverflowError, socket.htonl, k)
self.assertRaises(OverflowError, socket.htons, k)
def testGetServBy(self):
eq = self.assertEqual
# Find one service that exists, then check all the related interfaces.
# I've ordered this by protocols that have both a tcp and udp
# protocol, at least for modern Linuxes.
if (sys.platform.startswith('linux') or
sys.platform.startswith('freebsd') or
sys.platform.startswith('netbsd') or
sys.platform == 'darwin'):
# avoid the 'echo' service on this platform, as there is an
# assumption breaking non-standard port/protocol entry
services = ('daytime', 'qotd', 'domain')
else:
services = ('echo', 'daytime', 'domain')
for service in services:
try:
port = socket.getservbyname(service, 'tcp')
break
except socket.error:
pass
else:
raise socket.error
# Try same call with optional protocol omitted
port2 = socket.getservbyname(service)
eq(port, port2)
# Try udp, but don't barf if it doesn't exist
try:
udpport = socket.getservbyname(service, 'udp')
except socket.error:
udpport = None
else:
eq(udpport, port)
# Now make sure the lookup by port returns the same service name
eq(socket.getservbyport(port2), service)
eq(socket.getservbyport(port, 'tcp'), service)
if udpport is not None:
eq(socket.getservbyport(udpport, 'udp'), service)
# Make sure getservbyport does not accept out of range ports.
self.assertRaises(OverflowError, socket.getservbyport, -1)
self.assertRaises(OverflowError, socket.getservbyport, 65536)
def testDefaultTimeout(self):
# Testing default timeout
# The default timeout should initially be None
self.assertEqual(socket.getdefaulttimeout(), None)
s = socket.socket()
self.assertEqual(s.gettimeout(), None)
s.close()
# Set the default timeout to 10, and see if it propagates
socket.setdefaulttimeout(10)
self.assertEqual(socket.getdefaulttimeout(), 10)
s = socket.socket()
self.assertEqual(s.gettimeout(), 10)
s.close()
# Reset the default timeout to None, and see if it propagates
socket.setdefaulttimeout(None)
self.assertEqual(socket.getdefaulttimeout(), None)
s = socket.socket()
self.assertEqual(s.gettimeout(), None)
s.close()
# Check that setting it to an invalid value raises ValueError
self.assertRaises(ValueError, socket.setdefaulttimeout, -1)
# Check that setting it to an invalid type raises TypeError
self.assertRaises(TypeError, socket.setdefaulttimeout, "spam")
@unittest.skipUnless(hasattr(socket, 'inet_aton'),
'test needs socket.inet_aton()')
def testIPv4_inet_aton_fourbytes(self):
# Test that issue1008086 and issue767150 are fixed.
# It must return 4 bytes.
self.assertEqual('\x00'*4, socket.inet_aton('0.0.0.0'))
self.assertEqual('\xff'*4, socket.inet_aton('255.255.255.255'))
@unittest.skipUnless(hasattr(socket, 'inet_pton'),
'test needs socket.inet_pton()')
def testIPv4toString(self):
from socket import inet_aton as f, inet_pton, AF_INET
g = lambda a: inet_pton(AF_INET, a)
self.assertEqual('\x00\x00\x00\x00', f('0.0.0.0'))
self.assertEqual('\xff\x00\xff\x00', f('255.0.255.0'))
self.assertEqual('\xaa\xaa\xaa\xaa', f('170.170.170.170'))
self.assertEqual('\x01\x02\x03\x04', f('1.2.3.4'))
self.assertEqual('\xff\xff\xff\xff', f('255.255.255.255'))
self.assertEqual('\x00\x00\x00\x00', g('0.0.0.0'))
self.assertEqual('\xff\x00\xff\x00', g('255.0.255.0'))
self.assertEqual('\xaa\xaa\xaa\xaa', g('170.170.170.170'))
self.assertEqual('\xff\xff\xff\xff', g('255.255.255.255'))
@unittest.skipUnless(hasattr(socket, 'inet_pton'),
'test needs socket.inet_pton()')
def testIPv6toString(self):
try:
from socket import inet_pton, AF_INET6, has_ipv6
if not has_ipv6:
self.skipTest('IPv6 not available')
except ImportError:
self.skipTest('could not import needed symbols from socket')
f = lambda a: inet_pton(AF_INET6, a)
self.assertEqual('\x00' * 16, f('::'))
self.assertEqual('\x00' * 16, f('0::0'))
self.assertEqual('\x00\x01' + '\x00' * 14, f('1::'))
self.assertEqual(
'\x45\xef\x76\xcb\x00\x1a\x56\xef\xaf\xeb\x0b\xac\x19\x24\xae\xae',
f('45ef:76cb:1a:56ef:afeb:bac:1924:aeae')
)
@unittest.skipUnless(hasattr(socket, 'inet_ntop'),
'test needs socket.inet_ntop()')
def testStringToIPv4(self):
from socket import inet_ntoa as f, inet_ntop, AF_INET
g = lambda a: inet_ntop(AF_INET, a)
self.assertEqual('1.0.1.0', f('\x01\x00\x01\x00'))
self.assertEqual('170.85.170.85', f('\xaa\x55\xaa\x55'))
self.assertEqual('255.255.255.255', f('\xff\xff\xff\xff'))
self.assertEqual('1.2.3.4', f('\x01\x02\x03\x04'))
self.assertEqual('1.0.1.0', g('\x01\x00\x01\x00'))
self.assertEqual('170.85.170.85', g('\xaa\x55\xaa\x55'))
self.assertEqual('255.255.255.255', g('\xff\xff\xff\xff'))
@unittest.skipUnless(hasattr(socket, 'inet_ntop'),
'test needs socket.inet_ntop()')
def testStringToIPv6(self):
try:
from socket import inet_ntop, AF_INET6, has_ipv6
if not has_ipv6:
self.skipTest('IPv6 not available')
except ImportError:
self.skipTest('could not import needed symbols from socket')
f = lambda a: inet_ntop(AF_INET6, a)
self.assertEqual('::', f('\x00' * 16))
self.assertEqual('::1', f('\x00' * 15 + '\x01'))
self.assertEqual(
'aef:b01:506:1001:ffff:9997:55:170',
f('\x0a\xef\x0b\x01\x05\x06\x10\x01\xff\xff\x99\x97\x00\x55\x01\x70')
)
# XXX The following don't test module-level functionality...
def _get_unused_port(self, bind_address='0.0.0.0'):
"""Use a temporary socket to elicit an unused ephemeral port.
Args:
bind_address: Hostname or IP address to search for a port on.
Returns: A most likely to be unused port.
"""
tempsock = socket.socket()
tempsock.bind((bind_address, 0))
host, port = tempsock.getsockname()
tempsock.close()
return port
def testSockName(self):
# Testing getsockname()
port = self._get_unused_port()
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.addCleanup(sock.close)
sock.bind(("0.0.0.0", port))
name = sock.getsockname()
# XXX(nnorwitz): http://tinyurl.com/os5jz seems to indicate
# it reasonable to get the host's addr in addition to 0.0.0.0.
# At least for eCos. This is required for the S/390 to pass.
try:
my_ip_addr = socket.gethostbyname(socket.gethostname())
except socket.error:
# Probably name lookup wasn't set up right; skip this test
self.skipTest('name lookup failure')
self.assertIn(name[0], ("0.0.0.0", my_ip_addr), '%s invalid' % name[0])
self.assertEqual(name[1], port)
def testGetSockOpt(self):
# Testing getsockopt()
# We know a socket should start without reuse==0
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.addCleanup(sock.close)
reuse = sock.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR)
self.assertFalse(reuse != 0, "initial mode is reuse")
def testSetSockOpt(self):
# Testing setsockopt()
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.addCleanup(sock.close)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
reuse = sock.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR)
self.assertFalse(reuse == 0, "failed to set reuse mode")
def testSendAfterClose(self):
# testing send() after close() with timeout
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(1)
sock.close()
self.assertRaises(socket.error, sock.send, "spam")
def testNewAttributes(self):
# testing .family, .type and .protocol
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.assertEqual(sock.family, socket.AF_INET)
self.assertEqual(sock.type, socket.SOCK_STREAM)
self.assertEqual(sock.proto, 0)
sock.close()
def test_getsockaddrarg(self):
sock = socket.socket()
self.addCleanup(sock.close)
port = test_support.find_unused_port()
big_port = port + 65536
neg_port = port - 65536
self.assertRaises(OverflowError, sock.bind, (HOST, big_port))
self.assertRaises(OverflowError, sock.bind, (HOST, neg_port))
# Since find_unused_port() is inherently subject to race conditions, we
# call it a couple times if necessary.
for i in itertools.count():
port = test_support.find_unused_port()
try:
sock.bind((HOST, port))
except OSError as e:
if e.errno != errno.EADDRINUSE or i == 5:
raise
else:
break
@unittest.skipUnless(os.name == "nt", "Windows specific")
def test_sock_ioctl(self):
self.assertTrue(hasattr(socket.socket, 'ioctl'))
self.assertTrue(hasattr(socket, 'SIO_RCVALL'))
self.assertTrue(hasattr(socket, 'RCVALL_ON'))
self.assertTrue(hasattr(socket, 'RCVALL_OFF'))
self.assertTrue(hasattr(socket, 'SIO_KEEPALIVE_VALS'))
s = socket.socket()
self.addCleanup(s.close)
self.assertRaises(ValueError, s.ioctl, -1, None)
s.ioctl(socket.SIO_KEEPALIVE_VALS, (1, 100, 100))
def testGetaddrinfo(self):
try:
socket.getaddrinfo('localhost', 80)
except socket.gaierror as err:
if err.errno == socket.EAI_SERVICE:
# see http://bugs.python.org/issue1282647
self.skipTest("buggy libc version")
raise
# len of every sequence is supposed to be == 5
for info in socket.getaddrinfo(HOST, None):
self.assertEqual(len(info), 5)
# host can be a domain name, a string representation of an
# IPv4/v6 address or None
socket.getaddrinfo('localhost', 80)
socket.getaddrinfo('127.0.0.1', 80)
socket.getaddrinfo(None, 80)
if SUPPORTS_IPV6:
socket.getaddrinfo('::1', 80)
# port can be a string service name such as "http", a numeric
# port number (int or long), or None
socket.getaddrinfo(HOST, "http")
socket.getaddrinfo(HOST, 80)
socket.getaddrinfo(HOST, 80L)
socket.getaddrinfo(HOST, None)
# test family and socktype filters
infos = socket.getaddrinfo(HOST, None, socket.AF_INET)
for family, _, _, _, _ in infos:
self.assertEqual(family, socket.AF_INET)
infos = socket.getaddrinfo(HOST, None, 0, socket.SOCK_STREAM)
for _, socktype, _, _, _ in infos:
self.assertEqual(socktype, socket.SOCK_STREAM)
# test proto and flags arguments
socket.getaddrinfo(HOST, None, 0, 0, socket.SOL_TCP)
socket.getaddrinfo(HOST, None, 0, 0, 0, socket.AI_PASSIVE)
# a server willing to support both IPv4 and IPv6 will
# usually do this
socket.getaddrinfo(None, 0, socket.AF_UNSPEC, socket.SOCK_STREAM, 0,
socket.AI_PASSIVE)
# Issue 17269: test workaround for OS X platform bug segfault
if hasattr(socket, 'AI_NUMERICSERV'):
try:
# The arguments here are undefined and the call may succeed
# or fail. All we care here is that it doesn't segfault.
socket.getaddrinfo("localhost", None, 0, 0, 0,
socket.AI_NUMERICSERV)
except socket.gaierror:
pass
def check_sendall_interrupted(self, with_timeout):
# socketpair() is not strictly required, but it makes things easier.
if not hasattr(signal, 'alarm') or not hasattr(socket, 'socketpair'):
self.skipTest("signal.alarm and socket.socketpair required for this test")
# Our signal handlers clobber the C errno by calling a math function
# with an invalid domain value.
def ok_handler(*args):
self.assertRaises(ValueError, math.acosh, 0)
def raising_handler(*args):
self.assertRaises(ValueError, math.acosh, 0)
1 // 0
c, s = socket.socketpair()
old_alarm = signal.signal(signal.SIGALRM, raising_handler)
try:
if with_timeout:
# Just above the one second minimum for signal.alarm
c.settimeout(1.5)
with self.assertRaises(ZeroDivisionError):
signal.alarm(1)
c.sendall(b"x" * test_support.SOCK_MAX_SIZE)
if with_timeout:
signal.signal(signal.SIGALRM, ok_handler)
signal.alarm(1)
self.assertRaises(socket.timeout, c.sendall,
b"x" * test_support.SOCK_MAX_SIZE)
finally:
signal.alarm(0)
signal.signal(signal.SIGALRM, old_alarm)
c.close()
s.close()
def test_sendall_interrupted(self):
self.check_sendall_interrupted(False)
def test_sendall_interrupted_with_timeout(self):
self.check_sendall_interrupted(True)
def test_listen_backlog(self):
for backlog in 0, -1:
srv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
srv.bind((HOST, 0))
srv.listen(backlog)
srv.close()
@test_support.cpython_only
def test_listen_backlog_overflow(self):
# Issue 15989
import _testcapi
srv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
srv.bind((HOST, 0))
self.assertRaises(OverflowError, srv.listen, _testcapi.INT_MAX + 1)
srv.close()
@unittest.skipUnless(SUPPORTS_IPV6, 'IPv6 required for this test.')
def test_flowinfo(self):
self.assertRaises(OverflowError, socket.getnameinfo,
('::1',0, 0xffffffff), 0)
s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
try:
self.assertRaises(OverflowError, s.bind, ('::1', 0, -10))
finally:
s.close()
@unittest.skipUnless(thread, 'Threading required for this test.')
class BasicTCPTest(SocketConnectedTest):
def __init__(self, methodName='runTest'):
SocketConnectedTest.__init__(self, methodName=methodName)
def testRecv(self):
# Testing large receive over TCP
msg = self.cli_conn.recv(1024)
self.assertEqual(msg, MSG)
def _testRecv(self):
self.serv_conn.send(MSG)
def testOverFlowRecv(self):
# Testing receive in chunks over TCP
seg1 = self.cli_conn.recv(len(MSG) - 3)
seg2 = self.cli_conn.recv(1024)
msg = seg1 + seg2
self.assertEqual(msg, MSG)
def _testOverFlowRecv(self):
self.serv_conn.send(MSG)
def testRecvFrom(self):
# Testing large recvfrom() over TCP
msg, addr = self.cli_conn.recvfrom(1024)
self.assertEqual(msg, MSG)
def _testRecvFrom(self):
self.serv_conn.send(MSG)
def testOverFlowRecvFrom(self):
# Testing recvfrom() in chunks over TCP
seg1, addr = self.cli_conn.recvfrom(len(MSG)-3)
seg2, addr = self.cli_conn.recvfrom(1024)
msg = seg1 + seg2
self.assertEqual(msg, MSG)
def _testOverFlowRecvFrom(self):
self.serv_conn.send(MSG)
def testSendAll(self):
# Testing sendall() with a 2048 byte string over TCP
msg = ''
while 1:
read = self.cli_conn.recv(1024)
if not read:
break
msg += read
self.assertEqual(msg, 'f' * 2048)
def _testSendAll(self):
big_chunk = 'f' * 2048
self.serv_conn.sendall(big_chunk)
@unittest.skipUnless(hasattr(socket, 'fromfd'),
'socket.fromfd not available')
def testFromFd(self):
# Testing fromfd()
fd = self.cli_conn.fileno()
sock = socket.fromfd(fd, socket.AF_INET, socket.SOCK_STREAM)
self.addCleanup(sock.close)
msg = sock.recv(1024)
self.assertEqual(msg, MSG)
def _testFromFd(self):
self.serv_conn.send(MSG)
def testDup(self):
# Testing dup()
sock = self.cli_conn.dup()
self.addCleanup(sock.close)
msg = sock.recv(1024)
self.assertEqual(msg, MSG)
def _testDup(self):
self.serv_conn.send(MSG)
def testShutdown(self):
# Testing shutdown()
msg = self.cli_conn.recv(1024)
self.assertEqual(msg, MSG)
# wait for _testShutdown to finish: on OS X, when the server
# closes the connection the client also becomes disconnected,
# and the client's shutdown call will fail. (Issue #4397.)
self.done.wait()
def _testShutdown(self):
self.serv_conn.send(MSG)
self.serv_conn.shutdown(2)
testShutdown_overflow = test_support.cpython_only(testShutdown)
@test_support.cpython_only
def _testShutdown_overflow(self):
import _testcapi
self.serv_conn.send(MSG)
# Issue 15989
self.assertRaises(OverflowError, self.serv_conn.shutdown,
_testcapi.INT_MAX + 1)
self.assertRaises(OverflowError, self.serv_conn.shutdown,
2 + (_testcapi.UINT_MAX + 1))
self.serv_conn.shutdown(2)
@unittest.skipUnless(thread, 'Threading required for this test.')
class BasicUDPTest(ThreadedUDPSocketTest):
def __init__(self, methodName='runTest'):
ThreadedUDPSocketTest.__init__(self, methodName=methodName)
def testSendtoAndRecv(self):
# Testing sendto() and Recv() over UDP
msg = self.serv.recv(len(MSG))
self.assertEqual(msg, MSG)
def _testSendtoAndRecv(self):
self.cli.sendto(MSG, 0, (HOST, self.port))
def testRecvFrom(self):
# Testing recvfrom() over UDP
msg, addr = self.serv.recvfrom(len(MSG))
self.assertEqual(msg, MSG)
def _testRecvFrom(self):
self.cli.sendto(MSG, 0, (HOST, self.port))
def testRecvFromNegative(self):
# Negative lengths passed to recvfrom should give ValueError.
self.assertRaises(ValueError, self.serv.recvfrom, -1)
def _testRecvFromNegative(self):
self.cli.sendto(MSG, 0, (HOST, self.port))
@unittest.skipUnless(thread, 'Threading required for this test.')
class TCPCloserTest(ThreadedTCPSocketTest):
def testClose(self):
conn, addr = self.serv.accept()
conn.close()
sd = self.cli
read, write, err = select.select([sd], [], [], 1.0)
self.assertEqual(read, [sd])
self.assertEqual(sd.recv(1), '')
def _testClose(self):
self.cli.connect((HOST, self.port))
time.sleep(1.0)
@unittest.skipUnless(hasattr(socket, 'socketpair'),
'test needs socket.socketpair()')
@unittest.skipUnless(thread, 'Threading required for this test.')
class BasicSocketPairTest(SocketPairTest):
def __init__(self, methodName='runTest'):
SocketPairTest.__init__(self, methodName=methodName)
def testRecv(self):
msg = self.serv.recv(1024)
self.assertEqual(msg, MSG)
def _testRecv(self):
self.cli.send(MSG)
def testSend(self):
self.serv.send(MSG)
def _testSend(self):
msg = self.cli.recv(1024)
self.assertEqual(msg, MSG)
@unittest.skipUnless(thread, 'Threading required for this test.')
class NonBlockingTCPTests(ThreadedTCPSocketTest):
def __init__(self, methodName='runTest'):
ThreadedTCPSocketTest.__init__(self, methodName=methodName)
def testSetBlocking(self):
# Testing whether set blocking works
self.serv.setblocking(True)
self.assertIsNone(self.serv.gettimeout())
self.serv.setblocking(False)
self.assertEqual(self.serv.gettimeout(), 0.0)
start = time.time()
try:
self.serv.accept()
except socket.error:
pass
end = time.time()
self.assertTrue((end - start) < 1.0, "Error setting non-blocking mode.")
def _testSetBlocking(self):
pass
@test_support.cpython_only
def testSetBlocking_overflow(self):
# Issue 15989
import _testcapi
if _testcapi.UINT_MAX >= _testcapi.ULONG_MAX:
self.skipTest('needs UINT_MAX < ULONG_MAX')
self.serv.setblocking(False)
self.assertEqual(self.serv.gettimeout(), 0.0)
self.serv.setblocking(_testcapi.UINT_MAX + 1)
self.assertIsNone(self.serv.gettimeout())
_testSetBlocking_overflow = test_support.cpython_only(_testSetBlocking)
def testAccept(self):
# Testing non-blocking accept
self.serv.setblocking(0)
try:
conn, addr = self.serv.accept()
except socket.error:
pass
else:
self.fail("Error trying to do non-blocking accept.")
read, write, err = select.select([self.serv], [], [])
if self.serv in read:
conn, addr = self.serv.accept()
conn.close()
else:
self.fail("Error trying to do accept after select.")
def _testAccept(self):
time.sleep(0.1)
self.cli.connect((HOST, self.port))
def testConnect(self):
# Testing non-blocking connect
conn, addr = self.serv.accept()
conn.close()
def _testConnect(self):
self.cli.settimeout(10)
self.cli.connect((HOST, self.port))
def testRecv(self):
# Testing non-blocking recv
conn, addr = self.serv.accept()
conn.setblocking(0)
try:
msg = conn.recv(len(MSG))
except socket.error:
pass
else:
self.fail("Error trying to do non-blocking recv.")
read, write, err = select.select([conn], [], [])
if conn in read:
msg = conn.recv(len(MSG))
conn.close()
self.assertEqual(msg, MSG)
else:
self.fail("Error during select call to non-blocking socket.")
def _testRecv(self):
self.cli.connect((HOST, self.port))
time.sleep(0.1)
self.cli.send(MSG)
@unittest.skipUnless(thread, 'Threading required for this test.')
class FileObjectClassTestCase(SocketConnectedTest):
bufsize = -1 # Use default buffer size
def __init__(self, methodName='runTest'):
SocketConnectedTest.__init__(self, methodName=methodName)
def setUp(self):
SocketConnectedTest.setUp(self)
self.serv_file = self.cli_conn.makefile('rb', self.bufsize)
def tearDown(self):
self.serv_file.close()
self.assertTrue(self.serv_file.closed)
SocketConnectedTest.tearDown(self)
self.serv_file = None
def clientSetUp(self):
SocketConnectedTest.clientSetUp(self)
self.cli_file = self.serv_conn.makefile('wb')
def clientTearDown(self):
self.cli_file.close()
self.assertTrue(self.cli_file.closed)
self.cli_file = None
SocketConnectedTest.clientTearDown(self)
def testSmallRead(self):
# Performing small file read test
first_seg = self.serv_file.read(len(MSG)-3)
second_seg = self.serv_file.read(3)
msg = first_seg + second_seg
self.assertEqual(msg, MSG)
def _testSmallRead(self):
self.cli_file.write(MSG)
self.cli_file.flush()
def testFullRead(self):
# read until EOF
msg = self.serv_file.read()
self.assertEqual(msg, MSG)
def _testFullRead(self):
self.cli_file.write(MSG)
self.cli_file.close()
def testUnbufferedRead(self):
# Performing unbuffered file read test
buf = ''
while 1:
char = self.serv_file.read(1)
if not char:
break
buf += char
self.assertEqual(buf, MSG)
def _testUnbufferedRead(self):
self.cli_file.write(MSG)
self.cli_file.flush()
def testReadline(self):
# Performing file readline test
line = self.serv_file.readline()
self.assertEqual(line, MSG)
def _testReadline(self):
self.cli_file.write(MSG)
self.cli_file.flush()
def testReadlineAfterRead(self):
a_baloo_is = self.serv_file.read(len("A baloo is"))
self.assertEqual("A baloo is", a_baloo_is)
_a_bear = self.serv_file.read(len(" a bear"))
self.assertEqual(" a bear", _a_bear)
line = self.serv_file.readline()
self.assertEqual("\n", line)
line = self.serv_file.readline()
self.assertEqual("A BALOO IS A BEAR.\n", line)
line = self.serv_file.readline()
self.assertEqual(MSG, line)
def _testReadlineAfterRead(self):
self.cli_file.write("A baloo is a bear\n")
self.cli_file.write("A BALOO IS A BEAR.\n")
self.cli_file.write(MSG)
self.cli_file.flush()
def testReadlineAfterReadNoNewline(self):
end_of_ = self.serv_file.read(len("End Of "))
self.assertEqual("End Of ", end_of_)
line = self.serv_file.readline()
self.assertEqual("Line", line)
def _testReadlineAfterReadNoNewline(self):
self.cli_file.write("End Of Line")
def testClosedAttr(self):
self.assertTrue(not self.serv_file.closed)
def _testClosedAttr(self):
self.assertTrue(not self.cli_file.closed)
class FileObjectInterruptedTestCase(unittest.TestCase):
"""Test that the file object correctly handles EINTR internally."""
class MockSocket(object):
def __init__(self, recv_funcs=()):
# A generator that returns callables that we'll call for each
# call to recv().
self._recv_step = iter(recv_funcs)
def recv(self, size):
return self._recv_step.next()()
@staticmethod
def _raise_eintr():
raise socket.error(errno.EINTR)
def _test_readline(self, size=-1, **kwargs):
mock_sock = self.MockSocket(recv_funcs=[
lambda : "This is the first line\nAnd the sec",
self._raise_eintr,
lambda : "ond line is here\n",
lambda : "",
])
fo = socket._fileobject(mock_sock, **kwargs)
self.assertEqual(fo.readline(size), "This is the first line\n")
self.assertEqual(fo.readline(size), "And the second line is here\n")
def _test_read(self, size=-1, **kwargs):
mock_sock = self.MockSocket(recv_funcs=[
lambda : "This is the first line\nAnd the sec",
self._raise_eintr,
lambda : "ond line is here\n",
lambda : "",
])
fo = socket._fileobject(mock_sock, **kwargs)
self.assertEqual(fo.read(size), "This is the first line\n"
"And the second line is here\n")
def test_default(self):
self._test_readline()
self._test_readline(size=100)
self._test_read()
self._test_read(size=100)
def test_with_1k_buffer(self):
self._test_readline(bufsize=1024)
self._test_readline(size=100, bufsize=1024)
self._test_read(bufsize=1024)
self._test_read(size=100, bufsize=1024)
def _test_readline_no_buffer(self, size=-1):
mock_sock = self.MockSocket(recv_funcs=[
lambda : "aa",
lambda : "\n",
lambda : "BB",
self._raise_eintr,
lambda : "bb",
lambda : "",
])
fo = socket._fileobject(mock_sock, bufsize=0)
self.assertEqual(fo.readline(size), "aa\n")
self.assertEqual(fo.readline(size), "BBbb")
def test_no_buffer(self):
self._test_readline_no_buffer()
self._test_readline_no_buffer(size=4)
self._test_read(bufsize=0)
self._test_read(size=100, bufsize=0)
class UnbufferedFileObjectClassTestCase(FileObjectClassTestCase):
"""Repeat the tests from FileObjectClassTestCase with bufsize==0.
In this case (and in this case only), it should be possible to
create a file object, read a line from it, create another file
object, read another line from it, without loss of data in the
first file object's buffer. Note that httplib relies on this
when reading multiple requests from the same socket."""
bufsize = 0 # Use unbuffered mode
def testUnbufferedReadline(self):
# Read a line, create a new file object, read another line with it
line = self.serv_file.readline() # first line
self.assertEqual(line, "A. " + MSG) # first line
self.serv_file = self.cli_conn.makefile('rb', 0)
line = self.serv_file.readline() # second line
self.assertEqual(line, "B. " + MSG) # second line
def _testUnbufferedReadline(self):
self.cli_file.write("A. " + MSG)
self.cli_file.write("B. " + MSG)
self.cli_file.flush()
class LineBufferedFileObjectClassTestCase(FileObjectClassTestCase):
bufsize = 1 # Default-buffered for reading; line-buffered for writing
class SocketMemo(object):
"""A wrapper to keep track of sent data, needed to examine write behaviour"""
def __init__(self, sock):
self._sock = sock
self.sent = []
def send(self, data, flags=0):
n = self._sock.send(data, flags)
self.sent.append(data[:n])
return n
def sendall(self, data, flags=0):
self._sock.sendall(data, flags)
self.sent.append(data)
def __getattr__(self, attr):
return getattr(self._sock, attr)
def getsent(self):
return [e.tobytes() if isinstance(e, memoryview) else e for e in self.sent]
def setUp(self):
FileObjectClassTestCase.setUp(self)
self.serv_file._sock = self.SocketMemo(self.serv_file._sock)
def testLinebufferedWrite(self):
# Write two lines, in small chunks
msg = MSG.strip()
print >> self.serv_file, msg,
print >> self.serv_file, msg
# second line:
print >> self.serv_file, msg,
print >> self.serv_file, msg,
print >> self.serv_file, msg
# third line
print >> self.serv_file, ''
self.serv_file.flush()
msg1 = "%s %s\n"%(msg, msg)
msg2 = "%s %s %s\n"%(msg, msg, msg)
msg3 = "\n"
self.assertEqual(self.serv_file._sock.getsent(), [msg1, msg2, msg3])
def _testLinebufferedWrite(self):
msg = MSG.strip()
msg1 = "%s %s\n"%(msg, msg)
msg2 = "%s %s %s\n"%(msg, msg, msg)
msg3 = "\n"
l1 = self.cli_file.readline()
self.assertEqual(l1, msg1)
l2 = self.cli_file.readline()
self.assertEqual(l2, msg2)
l3 = self.cli_file.readline()
self.assertEqual(l3, msg3)
class SmallBufferedFileObjectClassTestCase(FileObjectClassTestCase):
bufsize = 2 # Exercise the buffering code
class NetworkConnectionTest(object):
"""Prove network connection."""
def clientSetUp(self):
# We're inherited below by BasicTCPTest2, which also inherits
# BasicTCPTest, which defines self.port referenced below.
self.cli = socket.create_connection((HOST, self.port))
self.serv_conn = self.cli
class BasicTCPTest2(NetworkConnectionTest, BasicTCPTest):
"""Tests that NetworkConnection does not break existing TCP functionality.
"""
class NetworkConnectionNoServer(unittest.TestCase):
class MockSocket(socket.socket):
def connect(self, *args):
raise socket.timeout('timed out')
@contextlib.contextmanager
def mocked_socket_module(self):
"""Return a socket which times out on connect"""
old_socket = socket.socket
socket.socket = self.MockSocket
try:
yield
finally:
socket.socket = old_socket
def test_connect(self):
port = test_support.find_unused_port()
cli = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.addCleanup(cli.close)
with self.assertRaises(socket.error) as cm:
cli.connect((HOST, port))
self.assertEqual(cm.exception.errno, errno.ECONNREFUSED)
def test_create_connection(self):
# Issue #9792: errors raised by create_connection() should have
# a proper errno attribute.
port = test_support.find_unused_port()
with self.assertRaises(socket.error) as cm:
socket.create_connection((HOST, port))
# Issue #16257: create_connection() calls getaddrinfo() against
# 'localhost'. This may result in an IPV6 addr being returned
# as well as an IPV4 one:
# >>> socket.getaddrinfo('localhost', port, 0, SOCK_STREAM)
# >>> [(2, 2, 0, '', ('127.0.0.1', 41230)),
# (26, 2, 0, '', ('::1', 41230, 0, 0))]
#
# create_connection() enumerates through all the addresses returned
# and if it doesn't successfully bind to any of them, it propagates
# the last exception it encountered.
#
# On Solaris, ENETUNREACH is returned in this circumstance instead
# of ECONNREFUSED. So, if that errno exists, add it to our list of
# expected errnos.
expected_errnos = [ errno.ECONNREFUSED, ]
if hasattr(errno, 'ENETUNREACH'):
expected_errnos.append(errno.ENETUNREACH)
if hasattr(errno, 'EADDRNOTAVAIL'):
# bpo-31910: socket.create_connection() fails randomly
# with EADDRNOTAVAIL on Travis CI
expected_errnos.append(errno.EADDRNOTAVAIL)
self.assertIn(cm.exception.errno, expected_errnos)
def test_create_connection_timeout(self):
# Issue #9792: create_connection() should not recast timeout errors
# as generic socket errors.
with self.mocked_socket_module():
with self.assertRaises(socket.timeout):
socket.create_connection((HOST, 1234))
@unittest.skipUnless(thread, 'Threading required for this test.')
class NetworkConnectionAttributesTest(SocketTCPTest, ThreadableTest):
def __init__(self, methodName='runTest'):
SocketTCPTest.__init__(self, methodName=methodName)
ThreadableTest.__init__(self)
def clientSetUp(self):
self.source_port = test_support.find_unused_port()
def clientTearDown(self):
self.cli.close()
self.cli = None
ThreadableTest.clientTearDown(self)
def _justAccept(self):
conn, addr = self.serv.accept()
conn.close()
testFamily = _justAccept
def _testFamily(self):
self.cli = socket.create_connection((HOST, self.port), timeout=30)
self.addCleanup(self.cli.close)
self.assertEqual(self.cli.family, 2)
testSourceAddress = _justAccept
def _testSourceAddress(self):
self.cli = socket.create_connection((HOST, self.port), timeout=30,
source_address=('', self.source_port))
self.addCleanup(self.cli.close)
self.assertEqual(self.cli.getsockname()[1], self.source_port)
# The port number being used is sufficient to show that the bind()
# call happened.
testTimeoutDefault = _justAccept
def _testTimeoutDefault(self):
# passing no explicit timeout uses socket's global default
self.assertTrue(socket.getdefaulttimeout() is None)
socket.setdefaulttimeout(42)
try:
self.cli = socket.create_connection((HOST, self.port))
self.addCleanup(self.cli.close)
finally:
socket.setdefaulttimeout(None)
self.assertEqual(self.cli.gettimeout(), 42)
testTimeoutNone = _justAccept
def _testTimeoutNone(self):
# None timeout means the same as sock.settimeout(None)
self.assertTrue(socket.getdefaulttimeout() is None)
socket.setdefaulttimeout(30)
try:
self.cli = socket.create_connection((HOST, self.port), timeout=None)
self.addCleanup(self.cli.close)
finally:
socket.setdefaulttimeout(None)
self.assertEqual(self.cli.gettimeout(), None)
testTimeoutValueNamed = _justAccept
def _testTimeoutValueNamed(self):
self.cli = socket.create_connection((HOST, self.port), timeout=30)
self.assertEqual(self.cli.gettimeout(), 30)
testTimeoutValueNonamed = _justAccept
def _testTimeoutValueNonamed(self):
self.cli = socket.create_connection((HOST, self.port), 30)
self.addCleanup(self.cli.close)
self.assertEqual(self.cli.gettimeout(), 30)
@unittest.skipUnless(thread, 'Threading required for this test.')
class NetworkConnectionBehaviourTest(SocketTCPTest, ThreadableTest):
def __init__(self, methodName='runTest'):
SocketTCPTest.__init__(self, methodName=methodName)
ThreadableTest.__init__(self)
def clientSetUp(self):
pass
def clientTearDown(self):
self.cli.close()
self.cli = None
ThreadableTest.clientTearDown(self)
def testInsideTimeout(self):
conn, addr = self.serv.accept()
self.addCleanup(conn.close)
time.sleep(3)
conn.send("done!")
testOutsideTimeout = testInsideTimeout
def _testInsideTimeout(self):
self.cli = sock = socket.create_connection((HOST, self.port))
data = sock.recv(5)
self.assertEqual(data, "done!")
def _testOutsideTimeout(self):
self.cli = sock = socket.create_connection((HOST, self.port), timeout=1)
self.assertRaises(socket.timeout, lambda: sock.recv(5))
class Urllib2FileobjectTest(unittest.TestCase):
# urllib2.HTTPHandler has "borrowed" socket._fileobject, and requires that
# it close the socket if the close c'tor argument is true
def testClose(self):
class MockSocket:
closed = False
def flush(self): pass
def close(self): self.closed = True
# must not close unless we request it: the original use of _fileobject
# by module socket requires that the underlying socket not be closed until
# the _socketobject that created the _fileobject is closed
s = MockSocket()
f = socket._fileobject(s)
f.close()
self.assertTrue(not s.closed)
s = MockSocket()
f = socket._fileobject(s, close=True)
f.close()
self.assertTrue(s.closed)
class TCPTimeoutTest(SocketTCPTest):
def testTCPTimeout(self):
def raise_timeout(*args, **kwargs):
self.serv.settimeout(1.0)
self.serv.accept()
self.assertRaises(socket.timeout, raise_timeout,
"Error generating a timeout exception (TCP)")
def testTimeoutZero(self):
ok = False
try:
self.serv.settimeout(0.0)
foo = self.serv.accept()
except socket.timeout:
self.fail("caught timeout instead of error (TCP)")
except socket.error:
ok = True
except:
self.fail("caught unexpected exception (TCP)")
if not ok:
self.fail("accept() returned success when we did not expect it")
@unittest.skipUnless(hasattr(signal, 'alarm'),
'test needs signal.alarm()')
def testInterruptedTimeout(self):
# XXX I don't know how to do this test on MSWindows or any other
# plaform that doesn't support signal.alarm() or os.kill(), though
# the bug should have existed on all platforms.
self.serv.settimeout(5.0) # must be longer than alarm
class Alarm(Exception):
pass
def alarm_handler(signal, frame):
raise Alarm
old_alarm = signal.signal(signal.SIGALRM, alarm_handler)
try:
try:
signal.alarm(2) # POSIX allows alarm to be up to 1 second early
foo = self.serv.accept()
except socket.timeout:
self.fail("caught timeout instead of Alarm")
except Alarm:
pass
except:
self.fail("caught other exception instead of Alarm:"
" %s(%s):\n%s" %
(sys.exc_info()[:2] + (traceback.format_exc(),)))
else:
self.fail("nothing caught")
finally:
signal.alarm(0) # shut off alarm
except Alarm:
self.fail("got Alarm in wrong place")
finally:
# no alarm can be pending. Safe to restore old handler.
signal.signal(signal.SIGALRM, old_alarm)
class UDPTimeoutTest(SocketUDPTest):
def testUDPTimeout(self):
def raise_timeout(*args, **kwargs):
self.serv.settimeout(1.0)
self.serv.recv(1024)
self.assertRaises(socket.timeout, raise_timeout,
"Error generating a timeout exception (UDP)")
def testTimeoutZero(self):
ok = False
try:
self.serv.settimeout(0.0)
foo = self.serv.recv(1024)
except socket.timeout:
self.fail("caught timeout instead of error (UDP)")
except socket.error:
ok = True
except:
self.fail("caught unexpected exception (UDP)")
if not ok:
self.fail("recv() returned success when we did not expect it")
class TestExceptions(unittest.TestCase):
def testExceptionTree(self):
self.assertTrue(issubclass(socket.error, Exception))
self.assertTrue(issubclass(socket.herror, socket.error))
self.assertTrue(issubclass(socket.gaierror, socket.error))
self.assertTrue(issubclass(socket.timeout, socket.error))
@unittest.skipUnless(sys.platform == 'linux', 'Linux specific test')
class TestLinuxAbstractNamespace(unittest.TestCase):
UNIX_PATH_MAX = 108
def testLinuxAbstractNamespace(self):
address = "\x00python-test-hello\x00\xff"
s1 = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s1.bind(address)
s1.listen(1)
s2 = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s2.connect(s1.getsockname())
s1.accept()
self.assertEqual(s1.getsockname(), address)
self.assertEqual(s2.getpeername(), address)
def testMaxName(self):
address = "\x00" + "h" * (self.UNIX_PATH_MAX - 1)
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.bind(address)
self.assertEqual(s.getsockname(), address)
def testNameOverflow(self):
address = "\x00" + "h" * self.UNIX_PATH_MAX
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
self.assertRaises(socket.error, s.bind, address)
@unittest.skipUnless(thread, 'Threading required for this test.')
class BufferIOTest(SocketConnectedTest):
"""
Test the buffer versions of socket.recv() and socket.send().
"""
def __init__(self, methodName='runTest'):
SocketConnectedTest.__init__(self, methodName=methodName)
def testRecvIntoArray(self):
buf = array.array('c', ' '*1024)
nbytes = self.cli_conn.recv_into(buf)
self.assertEqual(nbytes, len(MSG))
msg = buf.tostring()[:len(MSG)]
self.assertEqual(msg, MSG)
def _testRecvIntoArray(self):
with test_support.check_py3k_warnings():
buf = buffer(MSG)
self.serv_conn.send(buf)
def testRecvIntoBytearray(self):
buf = bytearray(1024)
nbytes = self.cli_conn.recv_into(buf)
self.assertEqual(nbytes, len(MSG))
msg = buf[:len(MSG)]
self.assertEqual(msg, MSG)
_testRecvIntoBytearray = _testRecvIntoArray
def testRecvIntoMemoryview(self):
buf = bytearray(1024)
nbytes = self.cli_conn.recv_into(memoryview(buf))
self.assertEqual(nbytes, len(MSG))
msg = buf[:len(MSG)]
self.assertEqual(msg, MSG)
_testRecvIntoMemoryview = _testRecvIntoArray
def testRecvFromIntoArray(self):
buf = array.array('c', ' '*1024)
nbytes, addr = self.cli_conn.recvfrom_into(buf)
self.assertEqual(nbytes, len(MSG))
msg = buf.tostring()[:len(MSG)]
self.assertEqual(msg, MSG)
def _testRecvFromIntoArray(self):
with test_support.check_py3k_warnings():
buf = buffer(MSG)
self.serv_conn.send(buf)
def testRecvFromIntoBytearray(self):
buf = bytearray(1024)
nbytes, addr = self.cli_conn.recvfrom_into(buf)
self.assertEqual(nbytes, len(MSG))
msg = buf[:len(MSG)]
self.assertEqual(msg, MSG)
_testRecvFromIntoBytearray = _testRecvFromIntoArray
def testRecvFromIntoMemoryview(self):
buf = bytearray(1024)
nbytes, addr = self.cli_conn.recvfrom_into(memoryview(buf))
self.assertEqual(nbytes, len(MSG))
msg = buf[:len(MSG)]
self.assertEqual(msg, MSG)
_testRecvFromIntoMemoryview = _testRecvFromIntoArray
def testRecvFromIntoSmallBuffer(self):
# See issue #20246.
buf = bytearray(8)
self.assertRaises(ValueError, self.cli_conn.recvfrom_into, buf, 1024)
def _testRecvFromIntoSmallBuffer(self):
with test_support.check_py3k_warnings():
buf = buffer(MSG)
self.serv_conn.send(buf)
def testRecvFromIntoEmptyBuffer(self):
buf = bytearray()
self.cli_conn.recvfrom_into(buf)
self.cli_conn.recvfrom_into(buf, 0)
_testRecvFromIntoEmptyBuffer = _testRecvFromIntoArray
TIPC_STYPE = 2000
TIPC_LOWER = 200
TIPC_UPPER = 210
def isTipcAvailable():
"""Check if the TIPC module is loaded
The TIPC module is not loaded automatically on Ubuntu and probably
other Linux distros.
"""
if not hasattr(socket, "AF_TIPC"):
return False
try:
f = open("/proc/modules")
except IOError as e:
# It's ok if the file does not exist, is a directory or if we
# have not the permission to read it. In any other case it's a
# real error, so raise it again.
if e.errno in (errno.ENOENT, errno.EISDIR, errno.EACCES):
return False
else:
raise
with f:
for line in f:
if line.startswith("tipc "):
return True
return False
@unittest.skipUnless(isTipcAvailable(),
"TIPC module is not loaded, please 'sudo modprobe tipc'")
class TIPCTest(unittest.TestCase):
def testRDM(self):
srv = socket.socket(socket.AF_TIPC, socket.SOCK_RDM)
cli = socket.socket(socket.AF_TIPC, socket.SOCK_RDM)
srv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
srvaddr = (socket.TIPC_ADDR_NAMESEQ, TIPC_STYPE,
TIPC_LOWER, TIPC_UPPER)
srv.bind(srvaddr)
sendaddr = (socket.TIPC_ADDR_NAME, TIPC_STYPE,
TIPC_LOWER + (TIPC_UPPER - TIPC_LOWER) / 2, 0)
cli.sendto(MSG, sendaddr)
msg, recvaddr = srv.recvfrom(1024)
self.assertEqual(cli.getsockname(), recvaddr)
self.assertEqual(msg, MSG)
@unittest.skipUnless(isTipcAvailable(),
"TIPC module is not loaded, please 'sudo modprobe tipc'")
class TIPCThreadableTest(unittest.TestCase, ThreadableTest):
def __init__(self, methodName = 'runTest'):
unittest.TestCase.__init__(self, methodName = methodName)
ThreadableTest.__init__(self)
def setUp(self):
self.srv = socket.socket(socket.AF_TIPC, socket.SOCK_STREAM)
self.srv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
srvaddr = (socket.TIPC_ADDR_NAMESEQ, TIPC_STYPE,
TIPC_LOWER, TIPC_UPPER)
self.srv.bind(srvaddr)
self.srv.listen(5)
self.serverExplicitReady()
self.conn, self.connaddr = self.srv.accept()
def clientSetUp(self):
# There is a hittable race between serverExplicitReady() and the
# accept() call; sleep a little while to avoid it, otherwise
# we could get an exception
time.sleep(0.1)
self.cli = socket.socket(socket.AF_TIPC, socket.SOCK_STREAM)
addr = (socket.TIPC_ADDR_NAME, TIPC_STYPE,
TIPC_LOWER + (TIPC_UPPER - TIPC_LOWER) / 2, 0)
self.cli.connect(addr)
self.cliaddr = self.cli.getsockname()
def testStream(self):
msg = self.conn.recv(1024)
self.assertEqual(msg, MSG)
self.assertEqual(self.cliaddr, self.connaddr)
def _testStream(self):
self.cli.send(MSG)
self.cli.close()
def test_main():
tests = [GeneralModuleTests, BasicTCPTest, TCPCloserTest, TCPTimeoutTest,
TestExceptions, BufferIOTest, BasicTCPTest2, BasicUDPTest,
UDPTimeoutTest ]
tests.extend([
NonBlockingTCPTests,
FileObjectClassTestCase,
FileObjectInterruptedTestCase,
UnbufferedFileObjectClassTestCase,
LineBufferedFileObjectClassTestCase,
SmallBufferedFileObjectClassTestCase,
Urllib2FileobjectTest,
NetworkConnectionNoServer,
NetworkConnectionAttributesTest,
NetworkConnectionBehaviourTest,
])
tests.append(BasicSocketPairTest)
tests.append(TestLinuxAbstractNamespace)
tests.extend([TIPCTest, TIPCThreadableTest])
thread_info = test_support.threading_setup()
test_support.run_unittest(*tests)
test_support.threading_cleanup(*thread_info)
if __name__ == "__main__":
test_main()
Reference in New Issue View Git Blame Copy Permalink