|
|
#!/usr/bin/env python
|
|
|
# encoding: utf-8
|
|
|
|
|
|
"""Tests for pendingdeferred.py"""
|
|
|
|
|
|
__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
|
|
|
from twisted.python import failure
|
|
|
|
|
|
from IPython.testing.util import DeferredTestCase
|
|
|
import IPython.kernel.pendingdeferred as pd
|
|
|
from IPython.kernel import error
|
|
|
from IPython.kernel.util import printer
|
|
|
|
|
|
|
|
|
class Foo(object):
|
|
|
|
|
|
def bar(self, bahz):
|
|
|
return defer.succeed('blahblah: %s' % bahz)
|
|
|
|
|
|
class TwoPhaseFoo(pd.PendingDeferredManager):
|
|
|
|
|
|
def __init__(self, foo):
|
|
|
self.foo = foo
|
|
|
pd.PendingDeferredManager.__init__(self)
|
|
|
|
|
|
@pd.two_phase
|
|
|
def bar(self, bahz):
|
|
|
return self.foo.bar(bahz)
|
|
|
|
|
|
class PendingDeferredManagerTest(DeferredTestCase):
|
|
|
|
|
|
def setUp(self):
|
|
|
self.pdm = pd.PendingDeferredManager()
|
|
|
|
|
|
def tearDown(self):
|
|
|
pass
|
|
|
|
|
|
def testBasic(self):
|
|
|
dDict = {}
|
|
|
# Create 10 deferreds and save them
|
|
|
for i in range(10):
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
dDict[did] = d
|
|
|
# Make sure they are begin saved
|
|
|
for k in dDict.keys():
|
|
|
self.assert_(self.pdm.quick_has_id(k))
|
|
|
# Get the pending deferred (block=True), then callback with 'foo' and compare
|
|
|
for did in dDict.keys()[0:5]:
|
|
|
d = self.pdm.get_pending_deferred(did,block=True)
|
|
|
dDict[did].callback('foo')
|
|
|
d.addCallback(lambda r: self.assert_(r=='foo'))
|
|
|
# Get the pending deferreds with (block=False) and make sure ResultNotCompleted is raised
|
|
|
for did in dDict.keys()[5:10]:
|
|
|
d = self.pdm.get_pending_deferred(did,block=False)
|
|
|
d.addErrback(lambda f: self.assertRaises(error.ResultNotCompleted, f.raiseException))
|
|
|
# Now callback the last 5, get them and compare.
|
|
|
for did in dDict.keys()[5:10]:
|
|
|
dDict[did].callback('foo')
|
|
|
d = self.pdm.get_pending_deferred(did,block=False)
|
|
|
d.addCallback(lambda r: self.assert_(r=='foo'))
|
|
|
|
|
|
def test_save_then_delete(self):
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
self.assert_(self.pdm.quick_has_id(did))
|
|
|
self.pdm.delete_pending_deferred(did)
|
|
|
self.assert_(not self.pdm.quick_has_id(did))
|
|
|
|
|
|
def test_save_get_delete(self):
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d2 = self.pdm.get_pending_deferred(did,True)
|
|
|
d2.addErrback(lambda f: self.assertRaises(error.AbortedPendingDeferredError, f.raiseException))
|
|
|
self.pdm.delete_pending_deferred(did)
|
|
|
return d2
|
|
|
|
|
|
def test_double_get(self):
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d2 = self.pdm.get_pending_deferred(did,True)
|
|
|
d3 = self.pdm.get_pending_deferred(did,True)
|
|
|
d3.addErrback(lambda f: self.assertRaises(error.InvalidDeferredID, f.raiseException))
|
|
|
|
|
|
def test_get_after_callback(self):
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d.callback('foo')
|
|
|
d2 = self.pdm.get_pending_deferred(did,True)
|
|
|
d2.addCallback(lambda r: self.assertEquals(r,'foo'))
|
|
|
self.assert_(not self.pdm.quick_has_id(did))
|
|
|
|
|
|
def test_get_before_callback(self):
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d2 = self.pdm.get_pending_deferred(did,True)
|
|
|
d.callback('foo')
|
|
|
d2.addCallback(lambda r: self.assertEquals(r,'foo'))
|
|
|
self.assert_(not self.pdm.quick_has_id(did))
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d2 = self.pdm.get_pending_deferred(did,True)
|
|
|
d2.addCallback(lambda r: self.assertEquals(r,'foo'))
|
|
|
d.callback('foo')
|
|
|
self.assert_(not self.pdm.quick_has_id(did))
|
|
|
|
|
|
def test_get_after_errback(self):
|
|
|
class MyError(Exception):
|
|
|
pass
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d.errback(failure.Failure(MyError('foo')))
|
|
|
d2 = self.pdm.get_pending_deferred(did,True)
|
|
|
d2.addErrback(lambda f: self.assertRaises(MyError, f.raiseException))
|
|
|
self.assert_(not self.pdm.quick_has_id(did))
|
|
|
|
|
|
def test_get_before_errback(self):
|
|
|
class MyError(Exception):
|
|
|
pass
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d2 = self.pdm.get_pending_deferred(did,True)
|
|
|
d.errback(failure.Failure(MyError('foo')))
|
|
|
d2.addErrback(lambda f: self.assertRaises(MyError, f.raiseException))
|
|
|
self.assert_(not self.pdm.quick_has_id(did))
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d2 = self.pdm.get_pending_deferred(did,True)
|
|
|
d2.addErrback(lambda f: self.assertRaises(MyError, f.raiseException))
|
|
|
d.errback(failure.Failure(MyError('foo')))
|
|
|
self.assert_(not self.pdm.quick_has_id(did))
|
|
|
|
|
|
def test_noresult_noblock(self):
|
|
|
d = defer.Deferred()
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d2 = self.pdm.get_pending_deferred(did,False)
|
|
|
d2.addErrback(lambda f: self.assertRaises(error.ResultNotCompleted, f.raiseException))
|
|
|
|
|
|
def test_with_callbacks(self):
|
|
|
d = defer.Deferred()
|
|
|
d.addCallback(lambda r: r+' foo')
|
|
|
d.addCallback(lambda r: r+' bar')
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d2 = self.pdm.get_pending_deferred(did,True)
|
|
|
d.callback('bam')
|
|
|
d2.addCallback(lambda r: self.assertEquals(r,'bam foo bar'))
|
|
|
|
|
|
def test_with_errbacks(self):
|
|
|
class MyError(Exception):
|
|
|
pass
|
|
|
d = defer.Deferred()
|
|
|
d.addCallback(lambda r: 'foo')
|
|
|
d.addErrback(lambda f: 'caught error')
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d2 = self.pdm.get_pending_deferred(did,True)
|
|
|
d.errback(failure.Failure(MyError('bam')))
|
|
|
d2.addErrback(lambda f: self.assertRaises(MyError, f.raiseException))
|
|
|
|
|
|
def test_nested_deferreds(self):
|
|
|
d = defer.Deferred()
|
|
|
d2 = defer.Deferred()
|
|
|
d.addCallback(lambda r: d2)
|
|
|
did = self.pdm.save_pending_deferred(d)
|
|
|
d.callback('foo')
|
|
|
d3 = self.pdm.get_pending_deferred(did,False)
|
|
|
d3.addErrback(lambda f: self.assertRaises(error.ResultNotCompleted, f.raiseException))
|
|
|
d2.callback('bar')
|
|
|
d3 = self.pdm.get_pending_deferred(did,False)
|
|
|
d3.addCallback(lambda r: self.assertEquals(r,'bar'))
|
|
|
|
|
|
|
