root / test / ganeti.workerpool_unittest.py @ 8a7f1c61
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1 | 76094e37 | Michael Hanselmann | #!/usr/bin/python
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2 | 76094e37 | Michael Hanselmann | #
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3 | 76094e37 | Michael Hanselmann | |
4 | 76094e37 | Michael Hanselmann | # Copyright (C) 2008 Google Inc.
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5 | 76094e37 | Michael Hanselmann | #
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6 | 76094e37 | Michael Hanselmann | # This program is free software; you can redistribute it and/or modify
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7 | 76094e37 | Michael Hanselmann | # it under the terms of the GNU General Public License as published by
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8 | 76094e37 | Michael Hanselmann | # the Free Software Foundation; either version 2 of the License, or
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9 | 76094e37 | Michael Hanselmann | # (at your option) any later version.
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10 | 76094e37 | Michael Hanselmann | #
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11 | 76094e37 | Michael Hanselmann | # This program is distributed in the hope that it will be useful, but
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12 | 76094e37 | Michael Hanselmann | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | 76094e37 | Michael Hanselmann | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | 76094e37 | Michael Hanselmann | # General Public License for more details.
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15 | 76094e37 | Michael Hanselmann | #
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16 | 76094e37 | Michael Hanselmann | # You should have received a copy of the GNU General Public License
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17 | 76094e37 | Michael Hanselmann | # along with this program; if not, write to the Free Software
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18 | 76094e37 | Michael Hanselmann | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | 76094e37 | Michael Hanselmann | # 02110-1301, USA.
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20 | 76094e37 | Michael Hanselmann | |
21 | 76094e37 | Michael Hanselmann | |
22 | 76094e37 | Michael Hanselmann | """Script for unittesting the workerpool module"""
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23 | 76094e37 | Michael Hanselmann | |
24 | 76094e37 | Michael Hanselmann | import unittest |
25 | 76094e37 | Michael Hanselmann | import threading |
26 | 76094e37 | Michael Hanselmann | import time |
27 | 76094e37 | Michael Hanselmann | import sys |
28 | 76094e37 | Michael Hanselmann | import zlib |
29 | 76094e37 | Michael Hanselmann | |
30 | 76094e37 | Michael Hanselmann | from ganeti import workerpool |
31 | 76094e37 | Michael Hanselmann | |
32 | 25231ec5 | Michael Hanselmann | import testutils |
33 | 25231ec5 | Michael Hanselmann | |
34 | 7ed3248b | Guido Trotter | class CountingContext(object): |
35 | 7ed3248b | Guido Trotter | |
36 | 7ed3248b | Guido Trotter | def __init__(self): |
37 | 7ed3248b | Guido Trotter | self._lock = threading.Condition(threading.Lock())
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38 | 7ed3248b | Guido Trotter | self.done = 0 |
39 | 7ed3248b | Guido Trotter | |
40 | 7ed3248b | Guido Trotter | def DoneTask(self): |
41 | 7ed3248b | Guido Trotter | self._lock.acquire()
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42 | 7ed3248b | Guido Trotter | try:
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43 | 7ed3248b | Guido Trotter | self.done += 1 |
44 | 7ed3248b | Guido Trotter | finally:
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45 | 7ed3248b | Guido Trotter | self._lock.release()
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46 | 7ed3248b | Guido Trotter | |
47 | 7ed3248b | Guido Trotter | def GetDoneTasks(self): |
48 | 7ed3248b | Guido Trotter | self._lock.acquire()
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49 | 7ed3248b | Guido Trotter | try:
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50 | 7ed3248b | Guido Trotter | return self.done |
51 | 7ed3248b | Guido Trotter | finally:
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52 | 7ed3248b | Guido Trotter | self._lock.release()
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53 | 7ed3248b | Guido Trotter | |
54 | 7ed3248b | Guido Trotter | @staticmethod
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55 | 7ed3248b | Guido Trotter | def UpdateChecksum(current, value): |
56 | 7ed3248b | Guido Trotter | return zlib.adler32(str(value), current) |
57 | 76094e37 | Michael Hanselmann | |
58 | 7ed3248b | Guido Trotter | |
59 | 7ed3248b | Guido Trotter | class CountingBaseWorker(workerpool.BaseWorker): |
60 | 7ed3248b | Guido Trotter | |
61 | 7ed3248b | Guido Trotter | def RunTask(self, ctx, text): |
62 | 7ed3248b | Guido Trotter | ctx.DoneTask() |
63 | 76094e37 | Michael Hanselmann | |
64 | 76094e37 | Michael Hanselmann | |
65 | 76094e37 | Michael Hanselmann | class ChecksumContext: |
66 | 76094e37 | Michael Hanselmann | CHECKSUM_START = zlib.adler32("")
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67 | 76094e37 | Michael Hanselmann | |
68 | 76094e37 | Michael Hanselmann | def __init__(self): |
69 | 76094e37 | Michael Hanselmann | self.lock = threading.Condition(threading.Lock())
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70 | 76094e37 | Michael Hanselmann | self.checksum = self.CHECKSUM_START |
71 | 76094e37 | Michael Hanselmann | |
72 | 76094e37 | Michael Hanselmann | @staticmethod
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73 | 76094e37 | Michael Hanselmann | def UpdateChecksum(current, value): |
74 | 76094e37 | Michael Hanselmann | return zlib.adler32(str(value), current) |
75 | 76094e37 | Michael Hanselmann | |
76 | 76094e37 | Michael Hanselmann | |
77 | 76094e37 | Michael Hanselmann | class ChecksumBaseWorker(workerpool.BaseWorker): |
78 | 76094e37 | Michael Hanselmann | def RunTask(self, ctx, number): |
79 | 76094e37 | Michael Hanselmann | ctx.lock.acquire() |
80 | 76094e37 | Michael Hanselmann | try:
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81 | 76094e37 | Michael Hanselmann | ctx.checksum = ctx.UpdateChecksum(ctx.checksum, number) |
82 | 76094e37 | Michael Hanselmann | finally:
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83 | 76094e37 | Michael Hanselmann | ctx.lock.release() |
84 | 76094e37 | Michael Hanselmann | |
85 | 76094e37 | Michael Hanselmann | |
86 | 76094e37 | Michael Hanselmann | class TestWorkerpool(unittest.TestCase): |
87 | 76094e37 | Michael Hanselmann | """Workerpool tests"""
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88 | 76094e37 | Michael Hanselmann | |
89 | 7ed3248b | Guido Trotter | def testCounting(self): |
90 | 7ed3248b | Guido Trotter | ctx = CountingContext() |
91 | 7ed3248b | Guido Trotter | wp = workerpool.WorkerPool("Test", 3, CountingBaseWorker) |
92 | 76094e37 | Michael Hanselmann | try:
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93 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 3) |
94 | 76094e37 | Michael Hanselmann | |
95 | f1501b3f | Michael Hanselmann | for i in range(10): |
96 | 7ed3248b | Guido Trotter | wp.AddTask(ctx, "Hello world %s" % i)
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97 | 76094e37 | Michael Hanselmann | |
98 | 76094e37 | Michael Hanselmann | wp.Quiesce() |
99 | 76094e37 | Michael Hanselmann | finally:
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100 | 76094e37 | Michael Hanselmann | wp.TerminateWorkers() |
101 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 0) |
102 | 76094e37 | Michael Hanselmann | |
103 | 7ed3248b | Guido Trotter | self.assertEquals(ctx.GetDoneTasks(), 10) |
104 | 7ed3248b | Guido Trotter | |
105 | 76094e37 | Michael Hanselmann | def testNoTasks(self): |
106 | 7ed3248b | Guido Trotter | wp = workerpool.WorkerPool("Test", 3, CountingBaseWorker) |
107 | 76094e37 | Michael Hanselmann | try:
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108 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 3) |
109 | 76094e37 | Michael Hanselmann | self._CheckNoTasks(wp)
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110 | 76094e37 | Michael Hanselmann | finally:
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111 | 76094e37 | Michael Hanselmann | wp.TerminateWorkers() |
112 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 0) |
113 | 76094e37 | Michael Hanselmann | |
114 | 76094e37 | Michael Hanselmann | def testNoTasksQuiesce(self): |
115 | 7ed3248b | Guido Trotter | wp = workerpool.WorkerPool("Test", 3, CountingBaseWorker) |
116 | 76094e37 | Michael Hanselmann | try:
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117 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 3) |
118 | 76094e37 | Michael Hanselmann | self._CheckNoTasks(wp)
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119 | 76094e37 | Michael Hanselmann | wp.Quiesce() |
120 | 76094e37 | Michael Hanselmann | self._CheckNoTasks(wp)
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121 | 76094e37 | Michael Hanselmann | finally:
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122 | 76094e37 | Michael Hanselmann | wp.TerminateWorkers() |
123 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 0) |
124 | 76094e37 | Michael Hanselmann | |
125 | 76094e37 | Michael Hanselmann | def testChecksum(self): |
126 | 76094e37 | Michael Hanselmann | # Tests whether all tasks are run and, since we're only using a single
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127 | 76094e37 | Michael Hanselmann | # thread, whether everything is started in order.
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128 | 89e2b4d2 | Michael Hanselmann | wp = workerpool.WorkerPool("Test", 1, ChecksumBaseWorker) |
129 | 76094e37 | Michael Hanselmann | try:
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130 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 1) |
131 | 76094e37 | Michael Hanselmann | |
132 | 76094e37 | Michael Hanselmann | ctx = ChecksumContext() |
133 | 76094e37 | Michael Hanselmann | checksum = ChecksumContext.CHECKSUM_START |
134 | f1501b3f | Michael Hanselmann | for i in range(1, 100): |
135 | 76094e37 | Michael Hanselmann | checksum = ChecksumContext.UpdateChecksum(checksum, i) |
136 | 76094e37 | Michael Hanselmann | wp.AddTask(ctx, i) |
137 | 76094e37 | Michael Hanselmann | |
138 | 76094e37 | Michael Hanselmann | wp.Quiesce() |
139 | 76094e37 | Michael Hanselmann | |
140 | 76094e37 | Michael Hanselmann | self._CheckNoTasks(wp)
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141 | 76094e37 | Michael Hanselmann | |
142 | 76094e37 | Michael Hanselmann | # Check sum
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143 | 76094e37 | Michael Hanselmann | ctx.lock.acquire() |
144 | 76094e37 | Michael Hanselmann | try:
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145 | 76094e37 | Michael Hanselmann | self.assertEqual(checksum, ctx.checksum)
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146 | 76094e37 | Michael Hanselmann | finally:
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147 | 76094e37 | Michael Hanselmann | ctx.lock.release() |
148 | 76094e37 | Michael Hanselmann | finally:
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149 | 76094e37 | Michael Hanselmann | wp.TerminateWorkers() |
150 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 0) |
151 | 76094e37 | Michael Hanselmann | |
152 | c2a8e8ba | Guido Trotter | def testAddManyTasks(self): |
153 | 7ed3248b | Guido Trotter | ctx = CountingContext() |
154 | 7ed3248b | Guido Trotter | wp = workerpool.WorkerPool("Test", 3, CountingBaseWorker) |
155 | c2a8e8ba | Guido Trotter | try:
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156 | c2a8e8ba | Guido Trotter | self._CheckWorkerCount(wp, 3) |
157 | c2a8e8ba | Guido Trotter | |
158 | 7ed3248b | Guido Trotter | wp.AddManyTasks([(ctx, "Hello world %s" % i, ) for i in range(10)]) |
159 | 7ed3248b | Guido Trotter | wp.AddTask(ctx, "A separate hello")
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160 | 7ed3248b | Guido Trotter | wp.AddTask(ctx, "Once more, hi!")
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161 | 7ed3248b | Guido Trotter | wp.AddManyTasks([(ctx, "Hello world %s" % i, ) for i in range(10)]) |
162 | c2a8e8ba | Guido Trotter | |
163 | c2a8e8ba | Guido Trotter | wp.Quiesce() |
164 | c2a8e8ba | Guido Trotter | |
165 | c2a8e8ba | Guido Trotter | self._CheckNoTasks(wp)
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166 | c2a8e8ba | Guido Trotter | finally:
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167 | c2a8e8ba | Guido Trotter | wp.TerminateWorkers() |
168 | c2a8e8ba | Guido Trotter | self._CheckWorkerCount(wp, 0) |
169 | c2a8e8ba | Guido Trotter | |
170 | 7ed3248b | Guido Trotter | self.assertEquals(ctx.GetDoneTasks(), 22) |
171 | 7ed3248b | Guido Trotter | |
172 | 25e557a5 | Guido Trotter | def testManyTasksSequence(self): |
173 | 25e557a5 | Guido Trotter | ctx = CountingContext() |
174 | 25e557a5 | Guido Trotter | wp = workerpool.WorkerPool("Test", 3, CountingBaseWorker) |
175 | 25e557a5 | Guido Trotter | try:
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176 | 25e557a5 | Guido Trotter | self._CheckWorkerCount(wp, 3) |
177 | 25e557a5 | Guido Trotter | self.assertRaises(AssertionError, wp.AddManyTasks, |
178 | 25e557a5 | Guido Trotter | ["Hello world %s" % i for i in range(10)]) |
179 | 25e557a5 | Guido Trotter | self.assertRaises(AssertionError, wp.AddManyTasks, |
180 | 25e557a5 | Guido Trotter | [i for i in range(10)]) |
181 | 25e557a5 | Guido Trotter | |
182 | 25e557a5 | Guido Trotter | wp.AddManyTasks([(ctx, "Hello world %s" % i, ) for i in range(10)]) |
183 | 25e557a5 | Guido Trotter | wp.AddTask(ctx, "A separate hello")
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184 | 25e557a5 | Guido Trotter | |
185 | 25e557a5 | Guido Trotter | wp.Quiesce() |
186 | 25e557a5 | Guido Trotter | |
187 | 25e557a5 | Guido Trotter | self._CheckNoTasks(wp)
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188 | 25e557a5 | Guido Trotter | finally:
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189 | 25e557a5 | Guido Trotter | wp.TerminateWorkers() |
190 | 25e557a5 | Guido Trotter | self._CheckWorkerCount(wp, 0) |
191 | 25e557a5 | Guido Trotter | |
192 | 25e557a5 | Guido Trotter | self.assertEquals(ctx.GetDoneTasks(), 11) |
193 | 25e557a5 | Guido Trotter | |
194 | 76094e37 | Michael Hanselmann | def _CheckNoTasks(self, wp): |
195 | 76094e37 | Michael Hanselmann | wp._lock.acquire() |
196 | 76094e37 | Michael Hanselmann | try:
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197 | 76094e37 | Michael Hanselmann | # The task queue must be empty now
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198 | 76094e37 | Michael Hanselmann | self.failUnless(not wp._tasks) |
199 | 76094e37 | Michael Hanselmann | finally:
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200 | 76094e37 | Michael Hanselmann | wp._lock.release() |
201 | 76094e37 | Michael Hanselmann | |
202 | 76094e37 | Michael Hanselmann | def _CheckWorkerCount(self, wp, num_workers): |
203 | 76094e37 | Michael Hanselmann | wp._lock.acquire() |
204 | 76094e37 | Michael Hanselmann | try:
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205 | 76094e37 | Michael Hanselmann | self.assertEqual(len(wp._workers), num_workers) |
206 | 76094e37 | Michael Hanselmann | finally:
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207 | 76094e37 | Michael Hanselmann | wp._lock.release() |
208 | 76094e37 | Michael Hanselmann | |
209 | 76094e37 | Michael Hanselmann | |
210 | 76094e37 | Michael Hanselmann | if __name__ == '__main__': |
211 | 25231ec5 | Michael Hanselmann | testutils.GanetiTestProgram() |