##// END OF EJS Templates
Merge pull request #3382 from minrk/culldigest...
Merge pull request #3382 from minrk/culldigest cull Session digest history a randomly selected ten percent is culled from the history prevents infinite growth for long running sessions of many messages, while maintaining reasonable replay protection. Size of digest is Configurable. related to #1131

File last commit:

r10811:557d9ee1
r10831:d3cef7f1 merge
Show More
test_session.py
225 lines | 8.9 KiB | text/x-python | PythonLexer
"""test building messages with streamsession"""
#-------------------------------------------------------------------------------
# Copyright (C) 2011 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-------------------------------------------------------------------------------
#-------------------------------------------------------------------------------
# Imports
#-------------------------------------------------------------------------------
import os
import uuid
import zmq
from zmq.tests import BaseZMQTestCase
from zmq.eventloop.zmqstream import ZMQStream
from IPython.kernel.zmq import session as ss
class SessionTestCase(BaseZMQTestCase):
def setUp(self):
BaseZMQTestCase.setUp(self)
self.session = ss.Session()
class TestSession(SessionTestCase):
def test_msg(self):
"""message format"""
msg = self.session.msg('execute')
thekeys = set('header parent_header metadata content msg_type msg_id'.split())
s = set(msg.keys())
self.assertEqual(s, thekeys)
self.assertTrue(isinstance(msg['content'],dict))
self.assertTrue(isinstance(msg['metadata'],dict))
self.assertTrue(isinstance(msg['header'],dict))
self.assertTrue(isinstance(msg['parent_header'],dict))
self.assertTrue(isinstance(msg['msg_id'],str))
self.assertTrue(isinstance(msg['msg_type'],str))
self.assertEqual(msg['header']['msg_type'], 'execute')
self.assertEqual(msg['msg_type'], 'execute')
def test_serialize(self):
msg = self.session.msg('execute', content=dict(a=10, b=1.1))
msg_list = self.session.serialize(msg, ident=b'foo')
ident, msg_list = self.session.feed_identities(msg_list)
new_msg = self.session.unserialize(msg_list)
self.assertEqual(ident[0], b'foo')
self.assertEqual(new_msg['msg_id'],msg['msg_id'])
self.assertEqual(new_msg['msg_type'],msg['msg_type'])
self.assertEqual(new_msg['header'],msg['header'])
self.assertEqual(new_msg['content'],msg['content'])
self.assertEqual(new_msg['parent_header'],msg['parent_header'])
self.assertEqual(new_msg['metadata'],msg['metadata'])
# ensure floats don't come out as Decimal:
self.assertEqual(type(new_msg['content']['b']),type(new_msg['content']['b']))
def test_send(self):
ctx = zmq.Context.instance()
A = ctx.socket(zmq.PAIR)
B = ctx.socket(zmq.PAIR)
A.bind("inproc://test")
B.connect("inproc://test")
msg = self.session.msg('execute', content=dict(a=10))
self.session.send(A, msg, ident=b'foo', buffers=[b'bar'])
ident, msg_list = self.session.feed_identities(B.recv_multipart())
new_msg = self.session.unserialize(msg_list)
self.assertEqual(ident[0], b'foo')
self.assertEqual(new_msg['msg_id'],msg['msg_id'])
self.assertEqual(new_msg['msg_type'],msg['msg_type'])
self.assertEqual(new_msg['header'],msg['header'])
self.assertEqual(new_msg['content'],msg['content'])
self.assertEqual(new_msg['parent_header'],msg['parent_header'])
self.assertEqual(new_msg['metadata'],msg['metadata'])
self.assertEqual(new_msg['buffers'],[b'bar'])
content = msg['content']
header = msg['header']
parent = msg['parent_header']
metadata = msg['metadata']
msg_type = header['msg_type']
self.session.send(A, None, content=content, parent=parent,
header=header, metadata=metadata, ident=b'foo', buffers=[b'bar'])
ident, msg_list = self.session.feed_identities(B.recv_multipart())
new_msg = self.session.unserialize(msg_list)
self.assertEqual(ident[0], b'foo')
self.assertEqual(new_msg['msg_id'],msg['msg_id'])
self.assertEqual(new_msg['msg_type'],msg['msg_type'])
self.assertEqual(new_msg['header'],msg['header'])
self.assertEqual(new_msg['content'],msg['content'])
self.assertEqual(new_msg['metadata'],msg['metadata'])
self.assertEqual(new_msg['parent_header'],msg['parent_header'])
self.assertEqual(new_msg['buffers'],[b'bar'])
self.session.send(A, msg, ident=b'foo', buffers=[b'bar'])
ident, new_msg = self.session.recv(B)
self.assertEqual(ident[0], b'foo')
self.assertEqual(new_msg['msg_id'],msg['msg_id'])
self.assertEqual(new_msg['msg_type'],msg['msg_type'])
self.assertEqual(new_msg['header'],msg['header'])
self.assertEqual(new_msg['content'],msg['content'])
self.assertEqual(new_msg['metadata'],msg['metadata'])
self.assertEqual(new_msg['parent_header'],msg['parent_header'])
self.assertEqual(new_msg['buffers'],[b'bar'])
A.close()
B.close()
ctx.term()
def test_args(self):
"""initialization arguments for Session"""
s = self.session
self.assertTrue(s.pack is ss.default_packer)
self.assertTrue(s.unpack is ss.default_unpacker)
self.assertEqual(s.username, os.environ.get('USER', u'username'))
s = ss.Session()
self.assertEqual(s.username, os.environ.get('USER', u'username'))
self.assertRaises(TypeError, ss.Session, pack='hi')
self.assertRaises(TypeError, ss.Session, unpack='hi')
u = str(uuid.uuid4())
s = ss.Session(username=u'carrot', session=u)
self.assertEqual(s.session, u)
self.assertEqual(s.username, u'carrot')
def test_tracking(self):
"""test tracking messages"""
a,b = self.create_bound_pair(zmq.PAIR, zmq.PAIR)
s = self.session
s.copy_threshold = 1
stream = ZMQStream(a)
msg = s.send(a, 'hello', track=False)
self.assertTrue(msg['tracker'] is ss.DONE)
msg = s.send(a, 'hello', track=True)
self.assertTrue(isinstance(msg['tracker'], zmq.MessageTracker))
M = zmq.Message(b'hi there', track=True)
msg = s.send(a, 'hello', buffers=[M], track=True)
t = msg['tracker']
self.assertTrue(isinstance(t, zmq.MessageTracker))
self.assertRaises(zmq.NotDone, t.wait, .1)
del M
t.wait(1) # this will raise
# def test_rekey(self):
# """rekeying dict around json str keys"""
# d = {'0': uuid.uuid4(), 0:uuid.uuid4()}
# self.assertRaises(KeyError, ss.rekey, d)
#
# d = {'0': uuid.uuid4(), 1:uuid.uuid4(), 'asdf':uuid.uuid4()}
# d2 = {0:d['0'],1:d[1],'asdf':d['asdf']}
# rd = ss.rekey(d)
# self.assertEqual(d2,rd)
#
# d = {'1.5':uuid.uuid4(),'1':uuid.uuid4()}
# d2 = {1.5:d['1.5'],1:d['1']}
# rd = ss.rekey(d)
# self.assertEqual(d2,rd)
#
# d = {'1.0':uuid.uuid4(),'1':uuid.uuid4()}
# self.assertRaises(KeyError, ss.rekey, d)
#
def test_unique_msg_ids(self):
"""test that messages receive unique ids"""
ids = set()
for i in range(2**12):
h = self.session.msg_header('test')
msg_id = h['msg_id']
self.assertTrue(msg_id not in ids)
ids.add(msg_id)
def test_feed_identities(self):
"""scrub the front for zmq IDENTITIES"""
theids = "engine client other".split()
content = dict(code='whoda',stuff=object())
themsg = self.session.msg('execute',content=content)
pmsg = theids
def test_session_id(self):
session = ss.Session()
# get bs before us
bs = session.bsession
us = session.session
self.assertEqual(us.encode('ascii'), bs)
session = ss.Session()
# get us before bs
us = session.session
bs = session.bsession
self.assertEqual(us.encode('ascii'), bs)
# change propagates:
session.session = 'something else'
bs = session.bsession
us = session.session
self.assertEqual(us.encode('ascii'), bs)
session = ss.Session(session='stuff')
# get us before bs
self.assertEqual(session.bsession, session.session.encode('ascii'))
self.assertEqual(b'stuff', session.bsession)
def test_zero_digest_history(self):
session = ss.Session(digest_history_size=0)
for i in range(11):
session._add_digest(uuid.uuid4().bytes)
self.assertEqual(len(session.digest_history), 0)
def test_cull_digest_history(self):
session = ss.Session(digest_history_size=100)
for i in range(100):
session._add_digest(uuid.uuid4().bytes)
self.assertTrue(len(session.digest_history) == 100)
session._add_digest(uuid.uuid4().bytes)
self.assertTrue(len(session.digest_history) == 91)
for i in range(9):
session._add_digest(uuid.uuid4().bytes)
self.assertTrue(len(session.digest_history) == 100)
session._add_digest(uuid.uuid4().bytes)
self.assertTrue(len(session.digest_history) == 91)