OpenStack library for messaging
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# Copyright 2013 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import fixtures
from oslo_config import cfg
import six
from six.moves import mox
from stevedore import driver
import testscenarios
import oslo_messaging
from oslo_messaging.tests import utils as test_utils
from oslo_messaging import transport
load_tests = testscenarios.load_tests_apply_scenarios
class _FakeDriver(object):
def __init__(self, conf):
self.conf = conf
def send(self, *args, **kwargs):
pass
def send_notification(self, *args, **kwargs):
pass
def listen(self, target):
pass
class _FakeManager(object):
def __init__(self, driver):
self.driver = driver
class GetTransportTestCase(test_utils.BaseTestCase):
scenarios = [
('rpc_backend',
dict(url=None, transport_url=None, rpc_backend='testbackend',
control_exchange=None, allowed=None, aliases=None,
expect=dict(backend='testbackend',
exchange=None,
url='testbackend:',
allowed=[]))),
('transport_url',
dict(url=None, transport_url='testtransport:', rpc_backend=None,
control_exchange=None, allowed=None, aliases=None,
expect=dict(backend='testtransport',
exchange=None,
url='testtransport:',
allowed=[]))),
('url_param',
dict(url='testtransport:', transport_url=None, rpc_backend=None,
control_exchange=None, allowed=None, aliases=None,
expect=dict(backend='testtransport',
exchange=None,
url='testtransport:',
allowed=[]))),
('control_exchange',
dict(url=None, transport_url=None, rpc_backend='testbackend',
control_exchange='testexchange', allowed=None, aliases=None,
expect=dict(backend='testbackend',
exchange='testexchange',
url='testbackend:',
allowed=[]))),
('allowed_remote_exmods',
dict(url=None, transport_url=None, rpc_backend='testbackend',
control_exchange=None, allowed=['foo', 'bar'], aliases=None,
expect=dict(backend='testbackend',
exchange=None,
url='testbackend:',
allowed=['foo', 'bar']))),
('rpc_backend_aliased',
dict(url=None, transport_url=None, rpc_backend='testfoo',
control_exchange=None, allowed=None,
aliases=dict(testfoo='testbackend'),
expect=dict(backend='testbackend',
exchange=None,
url='testbackend:',
allowed=[]))),
('transport_url_aliased',
dict(url=None, transport_url='testfoo:', rpc_backend=None,
control_exchange=None, allowed=None,
aliases=dict(testfoo='testtransport'),
expect=dict(backend='testtransport',
exchange=None,
url='testtransport:',
allowed=[]))),
('url_param_aliased',
dict(url='testfoo:', transport_url=None, rpc_backend=None,
control_exchange=None, allowed=None,
aliases=dict(testfoo='testtransport'),
expect=dict(backend='testtransport',
exchange=None,
url='testtransport:',
allowed=[]))),
]
def test_get_transport(self):
self.config(rpc_backend=self.rpc_backend,
control_exchange=self.control_exchange,
transport_url=self.transport_url)
self.mox.StubOutWithMock(driver, 'DriverManager')
invoke_args = [self.conf,
oslo_messaging.TransportURL.parse(self.conf,
self.expect['url'])]
invoke_kwds = dict(default_exchange=self.expect['exchange'],
allowed_remote_exmods=self.expect['allowed'])
drvr = _FakeDriver(self.conf)
driver.DriverManager('oslo.messaging.drivers',
self.expect['backend'],
invoke_on_load=True,
invoke_args=invoke_args,
invoke_kwds=invoke_kwds).\
AndReturn(_FakeManager(drvr))
self.mox.ReplayAll()
kwargs = dict(url=self.url)
if self.allowed is not None:
kwargs['allowed_remote_exmods'] = self.allowed
if self.aliases is not None:
kwargs['aliases'] = self.aliases
transport_ = oslo_messaging.get_transport(self.conf, **kwargs)
self.assertIsNotNone(transport_)
self.assertIs(transport_.conf, self.conf)
self.assertIs(transport_._driver, drvr)
class GetTransportSadPathTestCase(test_utils.BaseTestCase):
scenarios = [
('invalid_transport_url',
dict(url=None, transport_url='invalid', rpc_backend=None,
ex=dict(cls=oslo_messaging.InvalidTransportURL,
msg_contains='No scheme specified',
url='invalid'))),
('invalid_url_param',
dict(url='invalid', transport_url=None, rpc_backend=None,
ex=dict(cls=oslo_messaging.InvalidTransportURL,
msg_contains='No scheme specified',
url='invalid'))),
('driver_load_failure',
dict(url=None, transport_url=None, rpc_backend='testbackend',
ex=dict(cls=oslo_messaging.DriverLoadFailure,
msg_contains='Failed to load',
driver='testbackend'))),
]
def test_get_transport_sad(self):
self.config(rpc_backend=self.rpc_backend,
transport_url=self.transport_url)
if self.rpc_backend:
self.mox.StubOutWithMock(driver, 'DriverManager')
invoke_args = [self.conf,
oslo_messaging.TransportURL.parse(self.conf,
self.url)]
invoke_kwds = dict(default_exchange='openstack',
allowed_remote_exmods=[])
driver.DriverManager('oslo.messaging.drivers',
self.rpc_backend,
invoke_on_load=True,
invoke_args=invoke_args,
invoke_kwds=invoke_kwds).\
AndRaise(RuntimeError())
self.mox.ReplayAll()
try:
oslo_messaging.get_transport(self.conf, url=self.url)
self.assertFalse(True)
except Exception as ex:
ex_cls = self.ex.pop('cls')
ex_msg_contains = self.ex.pop('msg_contains')
self.assertIsInstance(ex, oslo_messaging.MessagingException)
self.assertIsInstance(ex, ex_cls)
self.assertIn(ex_msg_contains, six.text_type(ex))
for k, v in self.ex.items():
self.assertTrue(hasattr(ex, k))
self.assertEqual(v, str(getattr(ex, k)))
# FIXME(markmc): this could be used elsewhere
class _SetDefaultsFixture(fixtures.Fixture):
def __init__(self, set_defaults, opts, *names):
super(_SetDefaultsFixture, self).__init__()
self.set_defaults = set_defaults
self.opts = opts
self.names = names
def setUp(self):
super(_SetDefaultsFixture, self).setUp()
# FIXME(markmc): this comes from Id5c1f3ba
def first(seq, default=None, key=None):
if key is None:
key = bool
return next(six.moves.filter(key, seq), default)
def default(opts, name):
return first(opts, key=lambda o: o.name == name).default
orig_defaults = {}
for n in self.names:
orig_defaults[n] = default(self.opts, n)
def restore_defaults():
self.set_defaults(**orig_defaults)
self.addCleanup(restore_defaults)
class TestSetDefaults(test_utils.BaseTestCase):
def setUp(self):
super(TestSetDefaults, self).setUp(conf=cfg.ConfigOpts())
self.useFixture(_SetDefaultsFixture(
oslo_messaging.set_transport_defaults,
transport._transport_opts,
'control_exchange'))
def test_set_default_control_exchange(self):
oslo_messaging.set_transport_defaults(control_exchange='foo')
self.mox.StubOutWithMock(driver, 'DriverManager')
invoke_kwds = mox.ContainsKeyValue('default_exchange', 'foo')
driver.DriverManager(mox.IgnoreArg(),
mox.IgnoreArg(),
invoke_on_load=mox.IgnoreArg(),
invoke_args=mox.IgnoreArg(),
invoke_kwds=invoke_kwds).\
AndReturn(_FakeManager(_FakeDriver(self.conf)))
self.mox.ReplayAll()
oslo_messaging.get_transport(self.conf)
class TestTransportMethodArgs(test_utils.BaseTestCase):
_target = oslo_messaging.Target(topic='topic', server='server')
def test_send_defaults(self):
t = transport.Transport(_FakeDriver(cfg.CONF))
self.mox.StubOutWithMock(t._driver, 'send')
t._driver.send(self._target, 'ctxt', 'message',
wait_for_reply=None,
timeout=None, retry=None)
self.mox.ReplayAll()
t._send(self._target, 'ctxt', 'message')
def test_send_all_args(self):
t = transport.Transport(_FakeDriver(cfg.CONF))
self.mox.StubOutWithMock(t._driver, 'send')
t._driver.send(self._target, 'ctxt', 'message',
wait_for_reply='wait_for_reply',
timeout='timeout', retry='retry')
self.mox.ReplayAll()
t._send(self._target, 'ctxt', 'message',
wait_for_reply='wait_for_reply',
timeout='timeout', retry='retry')
def test_send_notification(self):
t = transport.Transport(_FakeDriver(cfg.CONF))
self.mox.StubOutWithMock(t._driver, 'send_notification')
t._driver.send_notification(self._target, 'ctxt', 'message', 1.0,
retry=None)
self.mox.ReplayAll()
t._send_notification(self._target, 'ctxt', 'message', version=1.0)
def test_send_notification_all_args(self):
t = transport.Transport(_FakeDriver(cfg.CONF))
self.mox.StubOutWithMock(t._driver, 'send_notification')
t._driver.send_notification(self._target, 'ctxt', 'message', 1.0,
retry=5)
self.mox.ReplayAll()
t._send_notification(self._target, 'ctxt', 'message', version=1.0,
retry=5)
def test_listen(self):
t = transport.Transport(_FakeDriver(cfg.CONF))
self.mox.StubOutWithMock(t._driver, 'listen')
t._driver.listen(self._target)
self.mox.ReplayAll()
t._listen(self._target)
class TestTransportUrlCustomisation(test_utils.BaseTestCase):
def setUp(self):
super(TestTransportUrlCustomisation, self).setUp()
self.url1 = transport.TransportURL.parse(self.conf, "fake://vhost1")
self.url2 = transport.TransportURL.parse(self.conf, "fake://vhost2")
self.url3 = transport.TransportURL.parse(self.conf, "fake://vhost1")
def test_hash(self):
urls = {}
urls[self.url1] = self.url1
urls[self.url2] = self.url2
urls[self.url3] = self.url3
self.assertEqual(2, len(urls))
def test_eq(self):
self.assertEqual(self.url1, self.url3)
self.assertNotEqual(self.url1, self.url2)
class TestTransportHostCustomisation(test_utils.BaseTestCase):
def setUp(self):
super(TestTransportHostCustomisation, self).setUp()
self.host1 = transport.TransportHost("host1", 5662, "user", "pass")
self.host2 = transport.TransportHost("host1", 5662, "user", "pass")
self.host3 = transport.TransportHost("host1", 5663, "user", "pass")
self.host4 = transport.TransportHost("host1", 5662, "user2", "pass")
self.host5 = transport.TransportHost("host1", 5662, "user", "pass2")
self.host6 = transport.TransportHost("host2", 5662, "user", "pass")
def test_hash(self):
hosts = {}
hosts[self.host1] = self.host1
hosts[self.host2] = self.host2
hosts[self.host3] = self.host3
hosts[self.host4] = self.host4
hosts[self.host5] = self.host5
hosts[self.host6] = self.host6
self.assertEqual(5, len(hosts))
def test_eq(self):
self.assertEqual(self.host1, self.host2)
self.assertNotEqual(self.host1, self.host3)
self.assertNotEqual(self.host1, self.host4)
self.assertNotEqual(self.host1, self.host5)
self.assertNotEqual(self.host1, self.host6)