/usr/lib/python2.7/dist-packages/zmq/tests/__init__.py is in python-zmq 14.0.1-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (c) 2010-2012 Brian Granger, Min Ragan-Kelley
#
# This file is part of pyzmq
#
# Distributed under the terms of the New BSD License. The full license is in
# the file COPYING.BSD, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
import functools
import sys
import time
from threading import Thread
from unittest import TestCase
import zmq
from zmq.utils import jsonapi
try:
import gevent
from zmq import green as gzmq
have_gevent = True
except ImportError:
have_gevent = False
try:
from unittest import SkipTest
except ImportError:
try:
from nose import SkipTest
except ImportError:
class SkipTest(Exception):
pass
PYPY = 'PyPy' in sys.version
#-----------------------------------------------------------------------------
# skip decorators (directly from unittest)
#-----------------------------------------------------------------------------
_id = lambda x: x
def skip(reason):
"""
Unconditionally skip a test.
"""
def decorator(test_item):
if not (isinstance(test_item, type) and issubclass(test_item, TestCase)):
@functools.wraps(test_item)
def skip_wrapper(*args, **kwargs):
raise SkipTest(reason)
test_item = skip_wrapper
test_item.__unittest_skip__ = True
test_item.__unittest_skip_why__ = reason
return test_item
return decorator
def skip_if(condition, reason="Skipped"):
"""
Skip a test if the condition is true.
"""
if condition:
return skip(reason)
return _id
skip_pypy = skip_if(PYPY, "Doesn't work on PyPy")
#-----------------------------------------------------------------------------
# Base test class
#-----------------------------------------------------------------------------
class BaseZMQTestCase(TestCase):
green = False
@property
def Context(self):
if self.green:
return gzmq.Context
else:
return zmq.Context
def setUp(self):
if self.green and not have_gevent:
raise SkipTest("requires gevent")
self.context = self.Context.instance()
self.sockets = []
def tearDown(self):
contexts = set([self.context])
while self.sockets:
sock = self.sockets.pop()
contexts.add(sock.context) # in case additional contexts are created
sock.close(0)
for ctx in contexts:
t = Thread(target=ctx.term)
t.daemon = True
t.start()
t.join(timeout=2)
if t.is_alive():
# reset Context.instance, so the failure to term doesn't corrupt subsequent tests
zmq.sugar.context.Context._instance = None
raise RuntimeError("context could not terminate, open sockets likely remain in test")
def create_bound_pair(self, type1=zmq.PAIR, type2=zmq.PAIR, interface='tcp://127.0.0.1'):
"""Create a bound socket pair using a random port."""
s1 = self.context.socket(type1)
s1.setsockopt(zmq.LINGER, 0)
port = s1.bind_to_random_port(interface)
s2 = self.context.socket(type2)
s2.setsockopt(zmq.LINGER, 0)
s2.connect('%s:%s' % (interface, port))
self.sockets.extend([s1,s2])
return s1, s2
def ping_pong(self, s1, s2, msg):
s1.send(msg)
msg2 = s2.recv()
s2.send(msg2)
msg3 = s1.recv()
return msg3
def ping_pong_json(self, s1, s2, o):
if jsonapi.jsonmod is None:
raise SkipTest("No json library")
s1.send_json(o)
o2 = s2.recv_json()
s2.send_json(o2)
o3 = s1.recv_json()
return o3
def ping_pong_pyobj(self, s1, s2, o):
s1.send_pyobj(o)
o2 = s2.recv_pyobj()
s2.send_pyobj(o2)
o3 = s1.recv_pyobj()
return o3
def assertRaisesErrno(self, errno, func, *args, **kwargs):
try:
func(*args, **kwargs)
except zmq.ZMQError as e:
self.assertEqual(e.errno, errno, "wrong error raised, expected '%s' \
got '%s'" % (zmq.ZMQError(errno), zmq.ZMQError(e.errno)))
else:
self.fail("Function did not raise any error")
def _select_recv(self, multipart, socket, **kwargs):
"""call recv[_multipart] in a way that raises if there is nothing to receive"""
if zmq.zmq_version_info() >= (3,1,0):
# zmq 3.1 has a bug, where poll can return false positives,
# so we wait a little bit just in case
# See LIBZMQ-280 on JIRA
time.sleep(0.1)
r,w,x = zmq.select([socket], [], [], timeout=5)
assert len(r) > 0, "Should have received a message"
kwargs['flags'] = zmq.DONTWAIT | kwargs.get('flags', 0)
recv = socket.recv_multipart if multipart else socket.recv
return recv(**kwargs)
def recv(self, socket, **kwargs):
"""call recv in a way that raises if there is nothing to receive"""
return self._select_recv(False, socket, **kwargs)
def recv_multipart(self, socket, **kwargs):
"""call recv_multipart in a way that raises if there is nothing to receive"""
return self._select_recv(True, socket, **kwargs)
class PollZMQTestCase(BaseZMQTestCase):
pass
class GreenTest:
"""Mixin for making green versions of test classes"""
green = True
def assertRaisesErrno(self, errno, func, *args, **kwargs):
if errno == zmq.EAGAIN:
raise SkipTest("Skipping because we're green.")
try:
func(*args, **kwargs)
except zmq.ZMQError:
e = sys.exc_info()[1]
self.assertEqual(e.errno, errno, "wrong error raised, expected '%s' \
got '%s'" % (zmq.ZMQError(errno), zmq.ZMQError(e.errno)))
else:
self.fail("Function did not raise any error")
def tearDown(self):
contexts = set([self.context])
while self.sockets:
sock = self.sockets.pop()
contexts.add(sock.context) # in case additional contexts are created
sock.close()
try:
gevent.joinall([gevent.spawn(ctx.term) for ctx in contexts], timeout=2, raise_error=True)
except gevent.Timeout:
raise RuntimeError("context could not terminate, open sockets likely remain in test")
def skip_green(self):
raise SkipTest("Skipping because we are green")
def skip_green(f):
def skipping_test(self, *args, **kwargs):
if self.green:
raise SkipTest("Skipping because we are green")
else:
return f(self, *args, **kwargs)
return skipping_test
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