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#!/usr/bin/python
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#
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# Copyright (C) 2010 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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# 02110-1301, USA.
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"""Script for unittesting the asyncnotifier module"""
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import unittest
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import signal
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import os
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try:
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# pylint: disable-msg=E0611
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from pyinotify import pyinotify
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except ImportError:
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import pyinotify
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from ganeti import asyncnotifier
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from ganeti import daemon
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from ganeti import utils
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import testutils
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class TestSingleFileEventHandler(testutils.GanetiTestCase):
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"""Test daemon.Mainloop"""
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def setUp(self):
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testutils.GanetiTestCase.setUp(self)
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self.mainloop = daemon.Mainloop()
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notifier_count = 2
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self.chk_files = [self._CreateTempFile() for i in range(notifier_count)]
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self.notified = [False for i in range(notifier_count)]
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# We need one watch manager per notifier, as those contain the file
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# descriptor which is monitored by asyncore
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self.wms = [pyinotify.WatchManager() for i in range(notifier_count)]
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self.cbk = [self.OnInotifyCallback(self.notified, i)
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for i in range(notifier_count)]
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self.ihandler = [asyncnotifier.SingleFileEventHandler(self.wms[i],
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self.cbk[i],
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self.chk_files[i])
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for i in range(notifier_count)]
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self.notifiers = [asyncnotifier.AsyncNotifier(self.wms[i],
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self.ihandler[i])
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for i in range(notifier_count)]
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# notifier 0 is enabled by default, as we use it to get out of the loop
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self.ihandler[0].enable()
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class OnInotifyCallback:
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def __init__(self, notified, i):
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self.notified = notified
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self.i = i
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def __call__(self, enabled):
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self.notified[self.i] = True
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# notifier 0 is special as we use it to terminate the mainloop
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if self.i == 0:
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os.kill(os.getpid(), signal.SIGTERM)
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def testReplace(self):
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utils.WriteFile(self.chk_files[0], data="dummy")
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self.mainloop.Run()
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self.assert_(self.notified[0])
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self.assert_(not self.notified[1])
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def testEnableDisable(self):
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self.ihandler[0].enable()
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self.ihandler[0].disable()
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self.ihandler[0].disable()
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self.ihandler[0].enable()
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self.ihandler[0].disable()
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self.ihandler[0].enable()
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utils.WriteFile(self.chk_files[0], data="dummy")
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self.mainloop.Run()
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self.assert_(self.notified[0])
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self.assert_(not self.notified[1])
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def testDoubleEnable(self):
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self.ihandler[0].enable()
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self.ihandler[0].enable()
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utils.WriteFile(self.chk_files[0], data="dummy")
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self.mainloop.Run()
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self.assert_(self.notified[0])
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self.assert_(not self.notified[1])
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def testDefaultDisabled(self):
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utils.WriteFile(self.chk_files[1], data="dummy")
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utils.WriteFile(self.chk_files[0], data="dummy")
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self.mainloop.Run()
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self.assert_(self.notified[0])
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# notifier 1 is disabled by default
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self.assert_(not self.notified[1])
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def testBothEnabled(self):
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self.ihandler[1].enable()
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utils.WriteFile(self.chk_files[1], data="dummy")
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utils.WriteFile(self.chk_files[0], data="dummy")
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self.mainloop.Run()
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self.assert_(self.notified[0])
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self.assert_(self.notified[1])
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if __name__ == "__main__":
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testutils.GanetiTestProgram()
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