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test_multienginefc.py
146 lines | 5.0 KiB | text/x-python | PythonLexer
#!/usr/bin/env python
# encoding: utf-8
__docformat__ = "restructuredtext en"
#-------------------------------------------------------------------------------
# Copyright (C) 2008 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
#-------------------------------------------------------------------------------
# Tell nose to skip this module
__test__ = {}
from twisted.internet import defer, reactor
from IPython.kernel.fcutil import Tub, UnauthenticatedTub
from IPython.testing.util import DeferredTestCase
from IPython.kernel.controllerservice import ControllerService
from IPython.kernel.multiengine import IMultiEngine
from IPython.kernel.tests.multienginetest import IFullSynchronousMultiEngineTestCase
from IPython.kernel.multienginefc import IFCSynchronousMultiEngine
from IPython.kernel import multiengine as me
from IPython.kernel.clientconnector import AsyncClientConnector
from IPython.kernel.parallelfunction import ParallelFunction
from IPython.kernel.error import CompositeError
from IPython.kernel.util import printer
def _raise_it(f):
try:
f.raiseException()
except CompositeError, e:
e.raise_exception()
class FullSynchronousMultiEngineTestCase(
DeferredTestCase, IFullSynchronousMultiEngineTestCase):
def setUp(self):
self.engines = []
self.controller = ControllerService()
self.controller.startService()
self.imultiengine = IMultiEngine(self.controller)
self.mec_referenceable = IFCSynchronousMultiEngine(self.imultiengine)
self.controller_tub = Tub()
self.controller_tub.listenOn('tcp:10111:interface=127.0.0.1')
self.controller_tub.setLocation('127.0.0.1:10111')
furl = self.controller_tub.registerReference(self.mec_referenceable)
self.controller_tub.startService()
self.client_tub = AsyncClientConnector()
d = self.client_tub.get_multiengine_client(furl_or_file=furl)
d.addCallback(self.handle_got_client)
return d
def handle_got_client(self, client):
self.multiengine = client
def tearDown(self):
dlist = []
# Shut down the multiengine client
d = self.client_tub.tub.stopService()
dlist.append(d)
# Shut down the engines
for e in self.engines:
e.stopService()
# Shut down the controller
d = self.controller_tub.stopService()
d.addBoth(lambda _: self.controller.stopService())
dlist.append(d)
return defer.DeferredList(dlist)
def test_mapper(self):
self.addEngine(4)
m = self.multiengine.mapper()
self.assertEquals(m.multiengine,self.multiengine)
self.assertEquals(m.dist,'b')
self.assertEquals(m.targets,'all')
self.assertEquals(m.block,True)
def test_map_default(self):
self.addEngine(4)
m = self.multiengine.mapper()
d = m.map(lambda x: 2*x, range(10))
d.addCallback(lambda r: self.assertEquals(r,[2*x for x in range(10)]))
d.addCallback(lambda _: self.multiengine.map(lambda x: 2*x, range(10)))
d.addCallback(lambda r: self.assertEquals(r,[2*x for x in range(10)]))
return d
def test_map_noblock(self):
self.addEngine(4)
m = self.multiengine.mapper(block=False)
d = m.map(lambda x: 2*x, range(10))
d.addCallback(lambda did: self.multiengine.get_pending_deferred(did, True))
d.addCallback(lambda r: self.assertEquals(r,[2*x for x in range(10)]))
return d
def test_mapper_fail(self):
self.addEngine(4)
m = self.multiengine.mapper()
d = m.map(lambda x: 1/0, range(10))
d.addBoth(lambda f: self.assertRaises(ZeroDivisionError, _raise_it, f))
return d
def test_parallel(self):
self.addEngine(4)
p = self.multiengine.parallel()
self.assert_(isinstance(p, ParallelFunction))
@p
def f(x): return 2*x
d = f(range(10))
d.addCallback(lambda r: self.assertEquals(r,[2*x for x in range(10)]))
return d
def test_parallel_noblock(self):
self.addEngine(1)
p = self.multiengine.parallel(block=False)
self.assert_(isinstance(p, ParallelFunction))
@p
def f(x): return 2*x
d = f(range(10))
d.addCallback(lambda did: self.multiengine.get_pending_deferred(did, True))
d.addCallback(lambda r: self.assertEquals(r,[2*x for x in range(10)]))
return d
def test_parallel_fail(self):
self.addEngine(4)
p = self.multiengine.parallel()
self.assert_(isinstance(p, ParallelFunction))
@p
def f(x): return 1/0
d = f(range(10))
d.addBoth(lambda f: self.assertRaises(ZeroDivisionError, _raise_it, f))
return d