#!/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 #------------------------------------------------------------------------------- try: import time from twisted.internet import defer, reactor from IPython.kernel.fcutil import Tub, UnauthenticatedTub from IPython.kernel import task as taskmodule from IPython.kernel import controllerservice as cs import IPython.kernel.multiengine as me from IPython.testing.util import DeferredTestCase from IPython.kernel.multienginefc import IFCSynchronousMultiEngine from IPython.kernel.taskfc import IFCTaskController from IPython.kernel.util import printer from IPython.kernel.tests.tasktest import ITaskControllerTestCase from IPython.kernel.clientconnector import ClientConnector from IPython.kernel.error import CompositeError from IPython.kernel.parallelfunction import ParallelFunction except ImportError: import nose raise nose.SkipTest("This test requires zope.interface, Twisted and Foolscap") #------------------------------------------------------------------------------- # Tests #------------------------------------------------------------------------------- def _raise_it(f): try: f.raiseException() except CompositeError, e: e.raise_exception() class TaskTest(DeferredTestCase, ITaskControllerTestCase): def setUp(self): self.engines = [] self.controller = cs.ControllerService() self.controller.startService() self.imultiengine = me.IMultiEngine(self.controller) self.itc = taskmodule.ITaskController(self.controller) self.itc.failurePenalty = 0 self.mec_referenceable = IFCSynchronousMultiEngine(self.imultiengine) self.tc_referenceable = IFCTaskController(self.itc) self.controller_tub = Tub() self.controller_tub.listenOn('tcp:10105:interface=127.0.0.1') self.controller_tub.setLocation('127.0.0.1:10105') mec_furl = self.controller_tub.registerReference(self.mec_referenceable) tc_furl = self.controller_tub.registerReference(self.tc_referenceable) self.controller_tub.startService() self.client_tub = ClientConnector() d = self.client_tub.get_multiengine_client(mec_furl) d.addCallback(self.handle_mec_client) d.addCallback(lambda _: self.client_tub.get_task_client(tc_furl)) d.addCallback(self.handle_tc_client) return d def handle_mec_client(self, client): self.multiengine = client def handle_tc_client(self, client): self.tc = 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(1) m = self.tc.mapper() self.assertEquals(m.task_controller,self.tc) self.assertEquals(m.clear_before,False) self.assertEquals(m.clear_after,False) self.assertEquals(m.retries,0) self.assertEquals(m.recovery_task,None) self.assertEquals(m.depend,None) self.assertEquals(m.block,True) def test_map_default(self): self.addEngine(1) m = self.tc.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.tc.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(1) m = self.tc.mapper(block=False) d = m.map(lambda x: 2*x, range(10)) d.addCallback(lambda r: self.assertEquals(r,[x for x in range(10)])) return d def test_mapper_fail(self): self.addEngine(1) m = self.tc.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(1) p = self.tc.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.tc.parallel(block=False) self.assert_(isinstance(p, ParallelFunction)) @p def f(x): return 2*x d = f(range(10)) d.addCallback(lambda r: self.assertEquals(r,[x for x in range(10)])) return d def test_parallel_fail(self): self.addEngine(1) p = self.tc.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