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test_kombu.py
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test_kombu.py
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import gevent
from gevent import monkey
monkey.patch_all()
import kombu
import sys
import logging
import uuid
import unittest
import testtools
from flexmock import flexmock
from cfgm_common import vnc_kombu
from vnc_cfg_api_server.vnc_db import VncServerKombuClient
from distutils.version import LooseVersion
from vnc_api.vnc_api import VirtualNetwork, NetworkIpam, VnSubnetsType
sys.path.append('../common/tests')
import test_common
import test_case
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
if LooseVersion(kombu.__version__) >= LooseVersion("2.5.0"):
is_kombu_client_v1 = False
else:
is_kombu_client_v1 = True
class CorrectValueException(Exception):
pass
class WrongValueException(Exception):
pass
class TestVncKombuClient(unittest.TestCase):
@classmethod
def setUpClass(cls, *args, **kwargs):
cls.console_handler = logging.StreamHandler()
cls.console_handler.setLevel(logging.DEBUG)
logger.addHandler(cls.console_handler)
super(TestVncKombuClient, cls).setUpClass(*args, **kwargs)
@classmethod
def tearDownClass(cls, *args, **kwargs):
logger.removeHandler(cls.console_handler)
super(TestVncKombuClient, cls).tearDownClass(*args, **kwargs)
def setUp(self):
self.mock_connect = flexmock(operational = True,
_info = lambda: "",
connection_errors = (Exception,),
channel_errors = ()
)
self.port = 5672
self.username = "guest"
self.password = "contrail123"
self.vhost = "vhost0"
self.db_client_mgr = flexmock(operational=True, _sandesh=None,
config_log=lambda *args, **kwargs: None,
get_server_port=lambda: 8082)
self._url_template = "pyamqp://%s:%s@%s:%d/%s"
self.mock_producer = flexmock(operational = True)
self.mock_consumer = flexmock(operational = True)
flexmock(vnc_kombu.kombu.Connection, __new__ = lambda *args, **kwargs: self.mock_connect)
flexmock(vnc_kombu.kombu.Producer, __new__ = lambda *args, **kwargs: self.mock_producer)
flexmock(vnc_kombu.kombu.Consumer, __new__= lambda *args, **kwargs: self.mock_consumer)
def _url(self, server,
port=None,
username=None,
password=None):
port = self.port if not port else port
username = self.username if not username else username
password = self.password if not password else password
return self._url_template % (username, password, server, port, self.vhost)
@unittest.skipIf(is_kombu_client_v1,
"skipping because kombu client is older")
def test_url_parsing(self):
check_value = []
def Connection(self, urls, **kwargs):
if set(urls) != set(check_value):
raise WrongValueException("expected %s - received %s", str(check_value), str(urls))
else:
raise CorrectValueException()
flexmock(vnc_kombu.kombu.Connection, __new__ = Connection)
servers = "a.a.a.a,b.b.b.b:5050,cccc@c.c.c.c,dddd@d.d.d.d:5050,eeee:xxxx@e.e.e.e,ffff:xxxx@f.f.f.f:5050"
check_value = [self._url("a.a.a.a"),
self._url("b.b.b.b", port=5050),
self._url("c.c.c.c", username="cccc"),
self._url("d.d.d.d", port=5050, username="dddd"),
self._url("e.e.e.e", username="eeee", password="xxxx"),
self._url("f.f.f.f", username="ffff", password="xxxx", port=5050)]
with self.assertRaises(CorrectValueException):
VncServerKombuClient(self.db_client_mgr, servers, self.port,
self.username, self.password, self.vhost, 0,
False)
@unittest.skipIf(is_kombu_client_v1,
"skipping because kombu client is older")
def test_connection_monitor(self):
flexmock(self.mock_connect).should_receive("close").times(3)
flexmock(self.mock_connect).should_receive("connect").twice()
flexmock(self.mock_connect).should_receive("ensure_connection").twice()
flexmock(self.mock_connect).should_receive("channel").twice()
flexmock(self.db_client_mgr).should_receive("wait_for_resync_done"). \
with_args().once()
flexmock(self.mock_consumer).should_receive("consume").twice()
flexmock(self.mock_consumer).should_receive("close").once()
flexmock(self.mock_producer).should_receive("close").once()
_lock = gevent.lock.Semaphore()
_lock.acquire()
def _drain_events():
if _lock.locked():
_lock.release()
raise Exception()
else:
gevent.sleep(5)
return
flexmock(self.mock_connect).should_receive("drain_events").replace_with(_drain_events).twice()
servers = "a.a.a.a"
kc = VncServerKombuClient(self.db_client_mgr,servers, self.port,
self.username, self.password, self.vhost, 0,
False)
_lock.wait()
kc.shutdown()
@unittest.skipIf(is_kombu_client_v1,
"skipping because kombu client is older")
def test_connection_publish(self):
flexmock(self.mock_connect).should_receive("close").twice()
flexmock(self.mock_connect).should_receive("connect").twice()
flexmock(self.mock_connect).should_receive("ensure_connection").twice()
flexmock(self.mock_connect).should_receive("channel").twice()
flexmock(self.db_client_mgr).should_receive("wait_for_resync_done"). \
with_args().once()
flexmock(self.mock_consumer).should_receive("consume").once()
_lock = gevent.lock.Semaphore()
_lock.acquire()
def _drain_events():
gevent.sleep(1000)
return
req_id = []
def _publish(args):
req_id.append(args['request-id'])
if _lock.locked():
_lock.release()
raise Exception()
return
flexmock(self.mock_connect).should_receive("drain_events").replace_with(_drain_events).once()
flexmock(self.mock_producer).should_receive("publish").replace_with(_publish).twice()
servers = "a.a.a.a"
kc = VncServerKombuClient(self.db_client_mgr, servers, self.port,
self.username, self.password, self.vhost, 0,
False)
gevent.sleep(0)
kc.dbe_create_publish("network", [], {'fq_name': ['vn1']})
_lock.wait()
# check if message is not missed out by publish error
self.assertEqual(len(req_id), 2)
self.assertEqual(len(set(req_id)), 1)