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