root / test / ganeti.asyncnotifier_unittest.py @ e3cc4c69
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1 | 17496050 | Guido Trotter | #!/usr/bin/python
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2 | 17496050 | Guido Trotter | #
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3 | 17496050 | Guido Trotter | |
4 | 17496050 | Guido Trotter | # Copyright (C) 2010 Google Inc.
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5 | 17496050 | Guido Trotter | #
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6 | 17496050 | Guido Trotter | # This program is free software; you can redistribute it and/or modify
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7 | 17496050 | Guido Trotter | # it under the terms of the GNU General Public License as published by
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8 | 17496050 | Guido Trotter | # the Free Software Foundation; either version 2 of the License, or
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9 | 17496050 | Guido Trotter | # (at your option) any later version.
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10 | 17496050 | Guido Trotter | #
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11 | 17496050 | Guido Trotter | # This program is distributed in the hope that it will be useful, but
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12 | 17496050 | Guido Trotter | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | 17496050 | Guido Trotter | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | 17496050 | Guido Trotter | # General Public License for more details.
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15 | 17496050 | Guido Trotter | #
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16 | 17496050 | Guido Trotter | # You should have received a copy of the GNU General Public License
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17 | 17496050 | Guido Trotter | # along with this program; if not, write to the Free Software
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18 | 17496050 | Guido Trotter | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | 17496050 | Guido Trotter | # 02110-1301, USA.
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20 | 17496050 | Guido Trotter | |
21 | 17496050 | Guido Trotter | |
22 | 17496050 | Guido Trotter | """Script for unittesting the asyncnotifier module"""
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23 | 17496050 | Guido Trotter | |
24 | 17496050 | Guido Trotter | import unittest |
25 | 17496050 | Guido Trotter | import signal |
26 | 17496050 | Guido Trotter | import os |
27 | 17496050 | Guido Trotter | |
28 | 17496050 | Guido Trotter | try:
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29 | 17496050 | Guido Trotter | # pylint: disable-msg=E0611
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30 | 17496050 | Guido Trotter | from pyinotify import pyinotify |
31 | 17496050 | Guido Trotter | except ImportError: |
32 | 17496050 | Guido Trotter | import pyinotify |
33 | 17496050 | Guido Trotter | |
34 | 17496050 | Guido Trotter | from ganeti import asyncnotifier |
35 | 17496050 | Guido Trotter | from ganeti import daemon |
36 | 17496050 | Guido Trotter | from ganeti import utils |
37 | 7678409f | Guido Trotter | from ganeti import errors |
38 | 17496050 | Guido Trotter | |
39 | 17496050 | Guido Trotter | import testutils |
40 | 17496050 | Guido Trotter | |
41 | 17496050 | Guido Trotter | |
42 | 7678409f | Guido Trotter | class _MyErrorLoggingAsyncNotifier(asyncnotifier.ErrorLoggingAsyncNotifier): |
43 | 7678409f | Guido Trotter | def __init__(self, *args, **kwargs): |
44 | 7678409f | Guido Trotter | asyncnotifier.ErrorLoggingAsyncNotifier.__init__(self, *args, **kwargs)
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45 | 7678409f | Guido Trotter | self.error_count = 0 |
46 | 7678409f | Guido Trotter | |
47 | 7678409f | Guido Trotter | def handle_error(self): |
48 | 7678409f | Guido Trotter | self.error_count += 1 |
49 | e3cc4c69 | Guido Trotter | raise
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50 | 7678409f | Guido Trotter | |
51 | 7678409f | Guido Trotter | |
52 | 17496050 | Guido Trotter | class TestSingleFileEventHandler(testutils.GanetiTestCase): |
53 | 17496050 | Guido Trotter | """Test daemon.Mainloop"""
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54 | 17496050 | Guido Trotter | |
55 | 7678409f | Guido Trotter | NOTIFIERS = [NOTIFIER_TERM, NOTIFIER_NORM, NOTIFIER_ERR] = range(3) |
56 | 49f986e7 | Guido Trotter | |
57 | 17496050 | Guido Trotter | def setUp(self): |
58 | 17496050 | Guido Trotter | testutils.GanetiTestCase.setUp(self)
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59 | 17496050 | Guido Trotter | self.mainloop = daemon.Mainloop()
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60 | 49f986e7 | Guido Trotter | self.chk_files = [self._CreateTempFile() for i in self.NOTIFIERS] |
61 | 49f986e7 | Guido Trotter | self.notified = [False for i in self.NOTIFIERS] |
62 | 17496050 | Guido Trotter | # We need one watch manager per notifier, as those contain the file
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63 | 17496050 | Guido Trotter | # descriptor which is monitored by asyncore
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64 | 49f986e7 | Guido Trotter | self.wms = [pyinotify.WatchManager() for i in self.NOTIFIERS] |
65 | 49f986e7 | Guido Trotter | self.cbk = [self.OnInotifyCallback(self, i) |
66 | 49f986e7 | Guido Trotter | for i in range(len(self.NOTIFIERS))] |
67 | 17496050 | Guido Trotter | self.ihandler = [asyncnotifier.SingleFileEventHandler(self.wms[i], |
68 | 17496050 | Guido Trotter | self.cbk[i],
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69 | 17496050 | Guido Trotter | self.chk_files[i])
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70 | 49f986e7 | Guido Trotter | for i in range(len(self.NOTIFIERS))] |
71 | 7678409f | Guido Trotter | self.notifiers = [_MyErrorLoggingAsyncNotifier(self.wms[i], |
72 | 7678409f | Guido Trotter | self.ihandler[i])
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73 | 49f986e7 | Guido Trotter | for i in range(len(self.NOTIFIERS))] |
74 | 49f986e7 | Guido Trotter | # TERM notifier is enabled by default, as we use it to get out of the loop
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75 | 49f986e7 | Guido Trotter | self.ihandler[self.NOTIFIER_TERM].enable() |
76 | 17496050 | Guido Trotter | |
77 | 17496050 | Guido Trotter | class OnInotifyCallback: |
78 | 49f986e7 | Guido Trotter | def __init__(self, testobj, i): |
79 | 49f986e7 | Guido Trotter | self.testobj = testobj
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80 | 49f986e7 | Guido Trotter | self.notified = testobj.notified
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81 | 17496050 | Guido Trotter | self.i = i
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82 | 17496050 | Guido Trotter | |
83 | 17496050 | Guido Trotter | def __call__(self, enabled): |
84 | 17496050 | Guido Trotter | self.notified[self.i] = True |
85 | 49f986e7 | Guido Trotter | if self.i == self.testobj.NOTIFIER_TERM: |
86 | 17496050 | Guido Trotter | os.kill(os.getpid(), signal.SIGTERM) |
87 | 7678409f | Guido Trotter | elif self.i == self.testobj.NOTIFIER_ERR: |
88 | 7678409f | Guido Trotter | raise errors.GenericError("an error") |
89 | 17496050 | Guido Trotter | |
90 | 17496050 | Guido Trotter | def testReplace(self): |
91 | 49f986e7 | Guido Trotter | utils.WriteFile(self.chk_files[self.NOTIFIER_TERM], data="dummy") |
92 | 17496050 | Guido Trotter | self.mainloop.Run()
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93 | 49f986e7 | Guido Trotter | self.assert_(self.notified[self.NOTIFIER_TERM]) |
94 | 49f986e7 | Guido Trotter | self.assert_(not self.notified[self.NOTIFIER_NORM]) |
95 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
96 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
97 | 17496050 | Guido Trotter | |
98 | 17496050 | Guido Trotter | def testEnableDisable(self): |
99 | 49f986e7 | Guido Trotter | self.ihandler[self.NOTIFIER_TERM].enable() |
100 | 49f986e7 | Guido Trotter | self.ihandler[self.NOTIFIER_TERM].disable() |
101 | 49f986e7 | Guido Trotter | self.ihandler[self.NOTIFIER_TERM].disable() |
102 | 49f986e7 | Guido Trotter | self.ihandler[self.NOTIFIER_TERM].enable() |
103 | 49f986e7 | Guido Trotter | self.ihandler[self.NOTIFIER_TERM].disable() |
104 | 49f986e7 | Guido Trotter | self.ihandler[self.NOTIFIER_TERM].enable() |
105 | 49f986e7 | Guido Trotter | utils.WriteFile(self.chk_files[self.NOTIFIER_TERM], data="dummy") |
106 | 17496050 | Guido Trotter | self.mainloop.Run()
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107 | 49f986e7 | Guido Trotter | self.assert_(self.notified[self.NOTIFIER_TERM]) |
108 | 49f986e7 | Guido Trotter | self.assert_(not self.notified[self.NOTIFIER_NORM]) |
109 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
110 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
111 | 17496050 | Guido Trotter | |
112 | 17496050 | Guido Trotter | def testDoubleEnable(self): |
113 | 49f986e7 | Guido Trotter | self.ihandler[self.NOTIFIER_TERM].enable() |
114 | 49f986e7 | Guido Trotter | self.ihandler[self.NOTIFIER_TERM].enable() |
115 | 49f986e7 | Guido Trotter | utils.WriteFile(self.chk_files[self.NOTIFIER_TERM], data="dummy") |
116 | 17496050 | Guido Trotter | self.mainloop.Run()
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117 | 49f986e7 | Guido Trotter | self.assert_(self.notified[self.NOTIFIER_TERM]) |
118 | 49f986e7 | Guido Trotter | self.assert_(not self.notified[self.NOTIFIER_NORM]) |
119 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
120 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
121 | 17496050 | Guido Trotter | |
122 | 17496050 | Guido Trotter | def testDefaultDisabled(self): |
123 | 49f986e7 | Guido Trotter | utils.WriteFile(self.chk_files[self.NOTIFIER_NORM], data="dummy") |
124 | 49f986e7 | Guido Trotter | utils.WriteFile(self.chk_files[self.NOTIFIER_TERM], data="dummy") |
125 | 17496050 | Guido Trotter | self.mainloop.Run()
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126 | 49f986e7 | Guido Trotter | self.assert_(self.notified[self.NOTIFIER_TERM]) |
127 | 49f986e7 | Guido Trotter | # NORM notifier is disabled by default
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128 | 49f986e7 | Guido Trotter | self.assert_(not self.notified[self.NOTIFIER_NORM]) |
129 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
130 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
131 | 17496050 | Guido Trotter | |
132 | 17496050 | Guido Trotter | def testBothEnabled(self): |
133 | 49f986e7 | Guido Trotter | self.ihandler[self.NOTIFIER_NORM].enable() |
134 | 49f986e7 | Guido Trotter | utils.WriteFile(self.chk_files[self.NOTIFIER_NORM], data="dummy") |
135 | 49f986e7 | Guido Trotter | utils.WriteFile(self.chk_files[self.NOTIFIER_TERM], data="dummy") |
136 | 17496050 | Guido Trotter | self.mainloop.Run()
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137 | 49f986e7 | Guido Trotter | self.assert_(self.notified[self.NOTIFIER_TERM]) |
138 | 49f986e7 | Guido Trotter | self.assert_(self.notified[self.NOTIFIER_NORM]) |
139 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
140 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
141 | 7678409f | Guido Trotter | |
142 | 7678409f | Guido Trotter | def testError(self): |
143 | 7678409f | Guido Trotter | self.ihandler[self.NOTIFIER_ERR].enable() |
144 | 7678409f | Guido Trotter | utils.WriteFile(self.chk_files[self.NOTIFIER_ERR], data="dummy") |
145 | e3cc4c69 | Guido Trotter | self.assertRaises(errors.GenericError, self.mainloop.Run) |
146 | 7678409f | Guido Trotter | self.assert_(self.notified[self.NOTIFIER_ERR]) |
147 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_ERR].error_count, 1) |
148 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_NORM].error_count, 0) |
149 | 7678409f | Guido Trotter | self.assertEquals(self.notifiers[self.NOTIFIER_TERM].error_count, 0) |
150 | 17496050 | Guido Trotter | |
151 | 17496050 | Guido Trotter | |
152 | 17496050 | Guido Trotter | if __name__ == "__main__": |
153 | 17496050 | Guido Trotter | testutils.GanetiTestProgram() |