root / test / ganeti.asyncnotifier_unittest.py @ e543a42f
History | View | Annotate | Download (6.6 kB)
| 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 asyncnotifier module"""
|
| 23 |
|
| 24 |
import unittest |
| 25 |
import signal |
| 26 |
import os |
| 27 |
import tempfile |
| 28 |
import shutil |
| 29 |
|
| 30 |
try:
|
| 31 |
# pylint: disable-msg=E0611
|
| 32 |
from pyinotify import pyinotify |
| 33 |
except ImportError: |
| 34 |
import pyinotify |
| 35 |
|
| 36 |
from ganeti import asyncnotifier |
| 37 |
from ganeti import daemon |
| 38 |
from ganeti import utils |
| 39 |
from ganeti import errors |
| 40 |
|
| 41 |
import testutils |
| 42 |
|
| 43 |
|
| 44 |
class _MyErrorLoggingAsyncNotifier(asyncnotifier.ErrorLoggingAsyncNotifier): |
| 45 |
def __init__(self, *args, **kwargs): |
| 46 |
asyncnotifier.ErrorLoggingAsyncNotifier.__init__(self, *args, **kwargs)
|
| 47 |
self.error_count = 0 |
| 48 |
|
| 49 |
def handle_error(self): |
| 50 |
self.error_count += 1 |
| 51 |
raise
|
| 52 |
|
| 53 |
|
| 54 |
class TestSingleFileEventHandler(testutils.GanetiTestCase): |
| 55 |
"""Test daemon.Mainloop"""
|
| 56 |
|
| 57 |
NOTIFIERS = [NOTIFIER_TERM, NOTIFIER_NORM, NOTIFIER_ERR] = range(3) |
| 58 |
|
| 59 |
def setUp(self): |
| 60 |
testutils.GanetiTestCase.setUp(self)
|
| 61 |
self.mainloop = daemon.Mainloop()
|
| 62 |
self.chk_files = [self._CreateTempFile() for i in self.NOTIFIERS] |
| 63 |
self.notified = [False for i in self.NOTIFIERS] |
| 64 |
# We need one watch manager per notifier, as those contain the file
|
| 65 |
# descriptor which is monitored by asyncore
|
| 66 |
self.wms = [pyinotify.WatchManager() for i in self.NOTIFIERS] |
| 67 |
self.cbk = [self.OnInotifyCallback(self, i) |
| 68 |
for i in range(len(self.NOTIFIERS))] |
| 69 |
self.ihandler = [asyncnotifier.SingleFileEventHandler(self.wms[i], |
| 70 |
self.cbk[i],
|
| 71 |
self.chk_files[i])
|
| 72 |
for i in range(len(self.NOTIFIERS))] |
| 73 |
self.notifiers = [_MyErrorLoggingAsyncNotifier(self.wms[i], |
| 74 |
self.ihandler[i])
|
| 75 |
for i in range(len(self.NOTIFIERS))] |
| 76 |
# TERM notifier is enabled by default, as we use it to get out of the loop
|
| 77 |
self.ihandler[self.NOTIFIER_TERM].enable() |
| 78 |
|
| 79 |
class OnInotifyCallback: |
| 80 |
def __init__(self, testobj, i): |
| 81 |
self.testobj = testobj
|
| 82 |
self.notified = testobj.notified
|
| 83 |
self.i = i
|
| 84 |
|
| 85 |
def __call__(self, enabled): |
| 86 |
self.notified[self.i] = True |
| 87 |
if self.i == self.testobj.NOTIFIER_TERM: |
| 88 |
os.kill(os.getpid(), signal.SIGTERM) |
| 89 |
elif self.i == self.testobj.NOTIFIER_ERR: |
| 90 |
raise errors.GenericError("an error") |
| 91 |
|
| 92 |
def testReplace(self): |
| 93 |
utils.WriteFile(self.chk_files[self.NOTIFIER_TERM], data="dummy") |
| 94 |
self.mainloop.Run()
|
| 95 |
self.assert_(self.notified[self.NOTIFIER_TERM]) |
| 96 |
self.assertFalse(self.notified[self.NOTIFIER_NORM]) |
| 97 |
self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
| 98 |
self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
| 99 |
|
| 100 |
def testEnableDisable(self): |
| 101 |
self.ihandler[self.NOTIFIER_TERM].enable() |
| 102 |
self.ihandler[self.NOTIFIER_TERM].disable() |
| 103 |
self.ihandler[self.NOTIFIER_TERM].disable() |
| 104 |
self.ihandler[self.NOTIFIER_TERM].enable() |
| 105 |
self.ihandler[self.NOTIFIER_TERM].disable() |
| 106 |
self.ihandler[self.NOTIFIER_TERM].enable() |
| 107 |
utils.WriteFile(self.chk_files[self.NOTIFIER_TERM], data="dummy") |
| 108 |
self.mainloop.Run()
|
| 109 |
self.assert_(self.notified[self.NOTIFIER_TERM]) |
| 110 |
self.assertFalse(self.notified[self.NOTIFIER_NORM]) |
| 111 |
self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
| 112 |
self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
| 113 |
|
| 114 |
def testDoubleEnable(self): |
| 115 |
self.ihandler[self.NOTIFIER_TERM].enable() |
| 116 |
self.ihandler[self.NOTIFIER_TERM].enable() |
| 117 |
utils.WriteFile(self.chk_files[self.NOTIFIER_TERM], data="dummy") |
| 118 |
self.mainloop.Run()
|
| 119 |
self.assert_(self.notified[self.NOTIFIER_TERM]) |
| 120 |
self.assertFalse(self.notified[self.NOTIFIER_NORM]) |
| 121 |
self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
| 122 |
self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
| 123 |
|
| 124 |
def testDefaultDisabled(self): |
| 125 |
utils.WriteFile(self.chk_files[self.NOTIFIER_NORM], data="dummy") |
| 126 |
utils.WriteFile(self.chk_files[self.NOTIFIER_TERM], data="dummy") |
| 127 |
self.mainloop.Run()
|
| 128 |
self.assert_(self.notified[self.NOTIFIER_TERM]) |
| 129 |
# NORM notifier is disabled by default
|
| 130 |
self.assertFalse(self.notified[self.NOTIFIER_NORM]) |
| 131 |
self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
| 132 |
self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
| 133 |
|
| 134 |
def testBothEnabled(self): |
| 135 |
self.ihandler[self.NOTIFIER_NORM].enable() |
| 136 |
utils.WriteFile(self.chk_files[self.NOTIFIER_NORM], data="dummy") |
| 137 |
utils.WriteFile(self.chk_files[self.NOTIFIER_TERM], data="dummy") |
| 138 |
self.mainloop.Run()
|
| 139 |
self.assert_(self.notified[self.NOTIFIER_TERM]) |
| 140 |
self.assert_(self.notified[self.NOTIFIER_NORM]) |
| 141 |
self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
| 142 |
self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
| 143 |
|
| 144 |
def testError(self): |
| 145 |
self.ihandler[self.NOTIFIER_ERR].enable() |
| 146 |
utils.WriteFile(self.chk_files[self.NOTIFIER_ERR], data="dummy") |
| 147 |
self.assertRaises(errors.GenericError, self.mainloop.Run) |
| 148 |
self.assert_(self.notified[self.NOTIFIER_ERR]) |
| 149 |
self.assertEquals(self.notifiers[self.NOTIFIER_ERR].error_count, 1) |
| 150 |
self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
| 151 |
self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
| 152 |
|
| 153 |
|
| 154 |
class TestSingleFileEventHandlerError(unittest.TestCase): |
| 155 |
def setUp(self): |
| 156 |
self.tmpdir = tempfile.mkdtemp()
|
| 157 |
|
| 158 |
def tearDown(self): |
| 159 |
shutil.rmtree(self.tmpdir)
|
| 160 |
|
| 161 |
def test(self): |
| 162 |
wm = pyinotify.WatchManager() |
| 163 |
handler = asyncnotifier.SingleFileEventHandler(wm, None,
|
| 164 |
utils.PathJoin(self.tmpdir,
|
| 165 |
"nonexist"))
|
| 166 |
self.assertRaises(errors.InotifyError, handler.enable)
|
| 167 |
self.assertRaises(errors.InotifyError, handler.enable)
|
| 168 |
handler.disable() |
| 169 |
self.assertRaises(errors.InotifyError, handler.enable)
|
| 170 |
|
| 171 |
|
| 172 |
if __name__ == "__main__": |
| 173 |
testutils.GanetiTestProgram() |