code.grnet.gr Git - ganeti-local/blob - test/ganeti.daemon_unittest.py

   1 #!/usr/bin/python
   2 #
   3
   4 # Copyright (C) 2010 Google Inc.
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful, but
  12 # WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 # General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 # 02110-1301, USA.
  20
  21
  22 """Script for unittesting the daemon module"""
  23
  24 import unittest
  25 import signal
  26 import os
  27
  28 from ganeti import daemon
  29
  30 import testutils
  31
  32
  33 class TestMainloop(testutils.GanetiTestCase):
  34   """Test daemon.Mainloop"""
  35
  36   def setUp(self):
  37     testutils.GanetiTestCase.setUp(self)
  38     self.mainloop = daemon.Mainloop()
  39     self.sendsig_events = []
  40     self.onsignal_events = []
  41
  42   def _CancelEvent(self, handle):
  43     self.mainloop.scheduler.cancel(handle)
  44
  45   def _SendSig(self, sig):
  46     self.sendsig_events.append(sig)
  47     os.kill(os.getpid(), sig)
  48
  49   def OnSignal(self, signum):
  50     self.onsignal_events.append(signum)
  51
  52   def testRunAndTermBySched(self):
  53     self.mainloop.scheduler.enter(0.1, 1, self._SendSig, [signal.SIGTERM])
  54     self.mainloop.Run() # terminates by _SendSig being scheduled
  55     self.assertEquals(self.sendsig_events, [signal.SIGTERM])
  56
  57   def testSchedulerCancel(self):
  58     handle = self.mainloop.scheduler.enter(0.1, 1, self._SendSig,
  59                                            [signal.SIGTERM])
  60     self.mainloop.scheduler.cancel(handle)
  61     self.mainloop.scheduler.enter(0.2, 1, self._SendSig, [signal.SIGCHLD])
  62     self.mainloop.scheduler.enter(0.3, 1, self._SendSig, [signal.SIGTERM])
  63     self.mainloop.Run()
  64     self.assertEquals(self.sendsig_events, [signal.SIGCHLD, signal.SIGTERM])
  65
  66   def testRegisterSignal(self):
  67     self.mainloop.RegisterSignal(self)
  68     self.mainloop.scheduler.enter(0.1, 1, self._SendSig, [signal.SIGCHLD])
  69     handle = self.mainloop.scheduler.enter(0.1, 1, self._SendSig,
  70                                            [signal.SIGTERM])
  71     self.mainloop.scheduler.cancel(handle)
  72     self.mainloop.scheduler.enter(0.2, 1, self._SendSig, [signal.SIGCHLD])
  73     self.mainloop.scheduler.enter(0.3, 1, self._SendSig, [signal.SIGTERM])
  74     # ...not delievered because they are scheduled after TERM
  75     self.mainloop.scheduler.enter(0.4, 1, self._SendSig, [signal.SIGCHLD])
  76     self.mainloop.scheduler.enter(0.5, 1, self._SendSig, [signal.SIGCHLD])
  77     self.mainloop.Run()
  78     self.assertEquals(self.sendsig_events,
  79                       [signal.SIGCHLD, signal.SIGCHLD, signal.SIGTERM])
  80     self.assertEquals(self.onsignal_events, self.sendsig_events)
  81
  82   def testDeferredCancel(self):
  83     self.mainloop.RegisterSignal(self)
  84     self.mainloop.scheduler.enter(0.1, 1, self._SendSig, [signal.SIGCHLD])
  85     handle1 = self.mainloop.scheduler.enter(0.3, 2, self._SendSig,
  86                                            [signal.SIGCHLD])
  87     handle2 = self.mainloop.scheduler.enter(0.4, 2, self._SendSig,
  88                                            [signal.SIGCHLD])
  89     self.mainloop.scheduler.enter(0, 1, self._CancelEvent, [handle1])
  90     self.mainloop.scheduler.enter(0, 1, self._CancelEvent, [handle2])
  91     self.mainloop.scheduler.enter(0.5, 1, self._SendSig, [signal.SIGTERM])
  92     self.mainloop.Run()
  93     self.assertEquals(self.sendsig_events, [signal.SIGCHLD, signal.SIGTERM])
  94     self.assertEquals(self.onsignal_events, self.sendsig_events)
  95
  96
  97 if __name__ == "__main__":
  98   testutils.GanetiTestProgram()