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test_session.py
207 lines | 8.1 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.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)