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"""test building messages with streamsession"""
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#-------------------------------------------------------------------------------
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# Copyright (C) 2011 The IPython Development Team
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#
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# Distributed under the terms of the BSD License. The full license is in
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# the file COPYING, distributed as part of this software.
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#-------------------------------------------------------------------------------
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#-------------------------------------------------------------------------------
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# Imports
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#-------------------------------------------------------------------------------
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import os
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import uuid
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import zmq
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from zmq.tests import BaseZMQTestCase
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from zmq.eventloop.zmqstream import ZMQStream
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# from IPython.zmq.tests import SessionTestCase
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from IPython.parallel import streamsession as ss
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class SessionTestCase(BaseZMQTestCase):
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def setUp(self):
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BaseZMQTestCase.setUp(self)
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self.session = ss.StreamSession()
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class TestSession(SessionTestCase):
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def test_msg(self):
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"""message format"""
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msg = self.session.msg('execute')
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thekeys = set('header msg_id parent_header msg_type content'.split())
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s = set(msg.keys())
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self.assertEquals(s, thekeys)
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self.assertTrue(isinstance(msg['content'],dict))
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self.assertTrue(isinstance(msg['header'],dict))
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self.assertTrue(isinstance(msg['parent_header'],dict))
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self.assertEquals(msg['msg_type'], 'execute')
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def test_args(self):
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"""initialization arguments for StreamSession"""
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s = self.session
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self.assertTrue(s.pack is ss.default_packer)
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self.assertTrue(s.unpack is ss.default_unpacker)
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self.assertEquals(s.username, os.environ.get('USER', 'username'))
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s = ss.StreamSession(username=None)
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self.assertEquals(s.username, os.environ.get('USER', 'username'))
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self.assertRaises(TypeError, ss.StreamSession, packer='hi')
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self.assertRaises(TypeError, ss.StreamSession, unpacker='hi')
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u = str(uuid.uuid4())
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s = ss.StreamSession(username='carrot', session=u)
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self.assertEquals(s.session, u)
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self.assertEquals(s.username, 'carrot')
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def test_tracking(self):
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"""test tracking messages"""
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a,b = self.create_bound_pair(zmq.PAIR, zmq.PAIR)
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s = self.session
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stream = ZMQStream(a)
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msg = s.send(a, 'hello', track=False)
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self.assertTrue(msg['tracker'] is None)
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msg = s.send(a, 'hello', track=True)
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self.assertTrue(isinstance(msg['tracker'], zmq.MessageTracker))
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M = zmq.Message(b'hi there', track=True)
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msg = s.send(a, 'hello', buffers=[M], track=True)
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t = msg['tracker']
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self.assertTrue(isinstance(t, zmq.MessageTracker))
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self.assertRaises(zmq.NotDone, t.wait, .1)
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del M
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t.wait(1) # this will raise
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# def test_rekey(self):
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# """rekeying dict around json str keys"""
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# d = {'0': uuid.uuid4(), 0:uuid.uuid4()}
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# self.assertRaises(KeyError, ss.rekey, d)
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#
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# d = {'0': uuid.uuid4(), 1:uuid.uuid4(), 'asdf':uuid.uuid4()}
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# d2 = {0:d['0'],1:d[1],'asdf':d['asdf']}
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# rd = ss.rekey(d)
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# self.assertEquals(d2,rd)
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#
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# d = {'1.5':uuid.uuid4(),'1':uuid.uuid4()}
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# d2 = {1.5:d['1.5'],1:d['1']}
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# rd = ss.rekey(d)
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# self.assertEquals(d2,rd)
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#
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# d = {'1.0':uuid.uuid4(),'1':uuid.uuid4()}
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# self.assertRaises(KeyError, ss.rekey, d)
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#
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def test_unique_msg_ids(self):
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"""test that messages receive unique ids"""
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ids = set()
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for i in range(2**12):
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h = self.session.msg_header('test')
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msg_id = h['msg_id']
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self.assertTrue(msg_id not in ids)
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ids.add(msg_id)
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def test_feed_identities(self):
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"""scrub the front for zmq IDENTITIES"""
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theids = "engine client other".split()
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content = dict(code='whoda',stuff=object())
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themsg = self.session.msg('execute',content=content)
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pmsg = theids
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