#!/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 ClientConnector 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:10105:interface=127.0.0.1') self.controller_tub.setLocation('127.0.0.1:10105') furl = self.controller_tub.registerReference(self.mec_referenceable) self.controller_tub.startService() self.client_tub = ClientConnector() d = self.client_tub.get_multiengine_client(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