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#!/usr/bin/python
#
# Copyright (C) 2009 Google Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 0.0510-1301, USA.
"""Script for unittesting the confd client module"""
import unittest
from ganeti import confd
from ganeti import constants
from ganeti import errors
import ganeti.confd.client
class ResettableMock(object):
def __init__(self, *args, **kwargs):
self.Reset()
def Reset(self):
pass
class MockLogger(ResettableMock):
def Reset(self):
self.debug_count = 0
self.warn_count = 0
self.error_count = 0
def debug(string):
self.debug_count += 1
def warning(string):
self.warn_count += 1
def error(string):
self.error_count += 1
class MockConfdAsyncUDPClient(ResettableMock):
def Reset(self):
self.send_count = 0
self.last_address = ''
self.last_port = -1
self.last_sent = ''
def enqueue_send(self, address, port, payload):
self.send_count += 1
self.last_payload = payload
self.last_port = port
self.last_address = address
class MockCallback(ResettableMock):
def Reset(self):
self.call_count = 0
self.last_up = None
def __call__(self, up):
"""Callback
@type up: L{ConfdUpcallPayload}
@param up: upper callback
"""
self.call_count += 1
self.last_up = up
class MockTime(ResettableMock):
def Reset(self):
self.mytime = 1254213006.5175071
def time(self):
return self.mytime
def increase(self, delta):
self.mytime += delta
class TestClient(unittest.TestCase):
"""Client tests"""
def setUp(self):
self.mock_time = MockTime()
confd.client.time = self.mock_time
confd.client.ConfdAsyncUDPClient = MockConfdAsyncUDPClient
self.logger = MockLogger()
hmac_key = "mykeydata"
self.mc_list = ['10.0.0.1',
'10.0.0.2',
'10.0.0.3',
'10.0.0.4',
'10.0.0.5',
'10.0.0.6',
'10.0.0.7',
'10.0.0.8',
'10.0.0.9',
]
self.callback = MockCallback()
self.client = confd.client.ConfdClient(hmac_key, self.mc_list,
self.callback, logger=self.logger)
def testRequest(self):
req1 = confd.client.ConfdClientRequest(type=constants.CONFD_REQ_PING)
req2 = confd.client.ConfdClientRequest(type=constants.CONFD_REQ_PING)
self.assertNotEqual(req1.rsalt, req2.rsalt)
self.assertEqual(req1.protocol, constants.CONFD_PROTOCOL_VERSION)
self.assertEqual(req2.protocol, constants.CONFD_PROTOCOL_VERSION)
self.assertRaises(errors.ConfdClientError, confd.client.ConfdClientRequest,
type=-33)
def testClientSend(self):
req = confd.client.ConfdClientRequest(type=constants.CONFD_REQ_PING)
self.client.SendRequest(req)
# Cannot send the same request twice
self.assertRaises(errors.ConfdClientError, self.client.SendRequest, req)
req2 = confd.client.ConfdClientRequest(type=constants.CONFD_REQ_PING)
# Coverage is too big
self.assertRaises(errors.ConfdClientError, self.client.SendRequest,
req2, coverage=15)
self.assertEquals(self.client._socket.send_count,
constants.CONFD_DEFAULT_REQ_COVERAGE)
self.assert_(self.client._socket.last_address in self.mc_list)
def testClientExpire(self):
req = confd.client.ConfdClientRequest(type=constants.CONFD_REQ_PING)
self.client.SendRequest(req)
# Make a couple of seconds pass ;)
self.mock_time.increase(2)
# Now sending the second request
req2 = confd.client.ConfdClientRequest(type=constants.CONFD_REQ_PING)
self.client.SendRequest(req2)
self.mock_time.increase(constants.CONFD_CLIENT_EXPIRE_TIMEOUT - 1)
# First request should be expired, second one should not
self.client.ExpireRequests()
self.assertEquals(self.callback.call_count, 1)
self.assertEquals(self.callback.last_up.type, confd.client.UPCALL_EXPIRE)
self.assertEquals(self.callback.last_up.salt, req.rsalt)
self.assertEquals(self.callback.last_up.orig_request, req)
self.mock_time.increase(3)
self.assertEquals(self.callback.call_count, 1)
self.client.ExpireRequests()
self.assertEquals(self.callback.call_count, 2)
self.assertEquals(self.callback.last_up.type, confd.client.UPCALL_EXPIRE)
self.assertEquals(self.callback.last_up.salt, req2.rsalt)
self.assertEquals(self.callback.last_up.orig_request, req2)
def testClientCascadeExpire(self):
req = confd.client.ConfdClientRequest(type=constants.CONFD_REQ_PING)
self.client.SendRequest(req)
self.mock_time.increase(constants.CONFD_CLIENT_EXPIRE_TIMEOUT +1)
req2 = confd.client.ConfdClientRequest(type=constants.CONFD_REQ_PING)
self.client.SendRequest(req2)
self.assertEquals(self.callback.call_count, 1)
def testUpdatePeerList(self):
new_peers = ['1.2.3.4', '1.2.3.5']
self.client.UpdatePeerList(new_peers)
self.assertEquals(self.client._peers, new_peers)
req = confd.client.ConfdClientRequest(type=constants.CONFD_REQ_PING)
self.client.SendRequest(req)
self.assertEquals(self.client._socket.send_count, len(new_peers))
self.assert_(self.client._socket.last_address in new_peers)
if __name__ == '__main__':
unittest.main()