root / test / ganeti.workerpool_unittest.py @ 18215385
History | View | Annotate | Download (3.5 kB)
1 | 76094e37 | Michael Hanselmann | #!/usr/bin/python
|
---|---|---|---|
2 | 76094e37 | Michael Hanselmann | #
|
3 | 76094e37 | Michael Hanselmann | |
4 | 76094e37 | Michael Hanselmann | # Copyright (C) 2008 Google Inc.
|
5 | 76094e37 | Michael Hanselmann | #
|
6 | 76094e37 | Michael Hanselmann | # This program is free software; you can redistribute it and/or modify
|
7 | 76094e37 | Michael Hanselmann | # it under the terms of the GNU General Public License as published by
|
8 | 76094e37 | Michael Hanselmann | # the Free Software Foundation; either version 2 of the License, or
|
9 | 76094e37 | Michael Hanselmann | # (at your option) any later version.
|
10 | 76094e37 | Michael Hanselmann | #
|
11 | 76094e37 | Michael Hanselmann | # This program is distributed in the hope that it will be useful, but
|
12 | 76094e37 | Michael Hanselmann | # WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 | 76094e37 | Michael Hanselmann | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 | 76094e37 | Michael Hanselmann | # General Public License for more details.
|
15 | 76094e37 | Michael Hanselmann | #
|
16 | 76094e37 | Michael Hanselmann | # You should have received a copy of the GNU General Public License
|
17 | 76094e37 | Michael Hanselmann | # along with this program; if not, write to the Free Software
|
18 | 76094e37 | Michael Hanselmann | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
19 | 76094e37 | Michael Hanselmann | # 02110-1301, USA.
|
20 | 76094e37 | Michael Hanselmann | |
21 | 76094e37 | Michael Hanselmann | |
22 | 76094e37 | Michael Hanselmann | """Script for unittesting the workerpool module"""
|
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 | 76094e37 | Michael Hanselmann | |
35 | 76094e37 | Michael Hanselmann | class DummyBaseWorker(workerpool.BaseWorker): |
36 | 76094e37 | Michael Hanselmann | def RunTask(self, text): |
37 | 76094e37 | Michael Hanselmann | pass
|
38 | 76094e37 | Michael Hanselmann | |
39 | 76094e37 | Michael Hanselmann | |
40 | 76094e37 | Michael Hanselmann | class ChecksumContext: |
41 | 76094e37 | Michael Hanselmann | CHECKSUM_START = zlib.adler32("")
|
42 | 76094e37 | Michael Hanselmann | |
43 | 76094e37 | Michael Hanselmann | def __init__(self): |
44 | 76094e37 | Michael Hanselmann | self.lock = threading.Condition(threading.Lock())
|
45 | 76094e37 | Michael Hanselmann | self.checksum = self.CHECKSUM_START |
46 | 76094e37 | Michael Hanselmann | |
47 | 76094e37 | Michael Hanselmann | @staticmethod
|
48 | 76094e37 | Michael Hanselmann | def UpdateChecksum(current, value): |
49 | 76094e37 | Michael Hanselmann | return zlib.adler32(str(value), current) |
50 | 76094e37 | Michael Hanselmann | |
51 | 76094e37 | Michael Hanselmann | |
52 | 76094e37 | Michael Hanselmann | class ChecksumBaseWorker(workerpool.BaseWorker): |
53 | 76094e37 | Michael Hanselmann | def RunTask(self, ctx, number): |
54 | 76094e37 | Michael Hanselmann | ctx.lock.acquire() |
55 | 76094e37 | Michael Hanselmann | try:
|
56 | 76094e37 | Michael Hanselmann | ctx.checksum = ctx.UpdateChecksum(ctx.checksum, number) |
57 | 76094e37 | Michael Hanselmann | finally:
|
58 | 76094e37 | Michael Hanselmann | ctx.lock.release() |
59 | 76094e37 | Michael Hanselmann | |
60 | 76094e37 | Michael Hanselmann | |
61 | 76094e37 | Michael Hanselmann | class TestWorkerpool(unittest.TestCase): |
62 | 76094e37 | Michael Hanselmann | """Workerpool tests"""
|
63 | 76094e37 | Michael Hanselmann | |
64 | 76094e37 | Michael Hanselmann | def testDummy(self): |
65 | 89e2b4d2 | Michael Hanselmann | wp = workerpool.WorkerPool("Test", 3, DummyBaseWorker) |
66 | 76094e37 | Michael Hanselmann | try:
|
67 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 3) |
68 | 76094e37 | Michael Hanselmann | |
69 | f1501b3f | Michael Hanselmann | for i in range(10): |
70 | 76094e37 | Michael Hanselmann | wp.AddTask("Hello world %s" % i)
|
71 | 76094e37 | Michael Hanselmann | |
72 | 76094e37 | Michael Hanselmann | wp.Quiesce() |
73 | 76094e37 | Michael Hanselmann | finally:
|
74 | 76094e37 | Michael Hanselmann | wp.TerminateWorkers() |
75 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 0) |
76 | 76094e37 | Michael Hanselmann | |
77 | 76094e37 | Michael Hanselmann | def testNoTasks(self): |
78 | 89e2b4d2 | Michael Hanselmann | wp = workerpool.WorkerPool("Test", 3, DummyBaseWorker) |
79 | 76094e37 | Michael Hanselmann | try:
|
80 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 3) |
81 | 76094e37 | Michael Hanselmann | self._CheckNoTasks(wp)
|
82 | 76094e37 | Michael Hanselmann | finally:
|
83 | 76094e37 | Michael Hanselmann | wp.TerminateWorkers() |
84 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 0) |
85 | 76094e37 | Michael Hanselmann | |
86 | 76094e37 | Michael Hanselmann | def testNoTasksQuiesce(self): |
87 | 89e2b4d2 | Michael Hanselmann | wp = workerpool.WorkerPool("Test", 3, DummyBaseWorker) |
88 | 76094e37 | Michael Hanselmann | try:
|
89 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 3) |
90 | 76094e37 | Michael Hanselmann | self._CheckNoTasks(wp)
|
91 | 76094e37 | Michael Hanselmann | wp.Quiesce() |
92 | 76094e37 | Michael Hanselmann | self._CheckNoTasks(wp)
|
93 | 76094e37 | Michael Hanselmann | finally:
|
94 | 76094e37 | Michael Hanselmann | wp.TerminateWorkers() |
95 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 0) |
96 | 76094e37 | Michael Hanselmann | |
97 | 76094e37 | Michael Hanselmann | def testChecksum(self): |
98 | 76094e37 | Michael Hanselmann | # Tests whether all tasks are run and, since we're only using a single
|
99 | 76094e37 | Michael Hanselmann | # thread, whether everything is started in order.
|
100 | 89e2b4d2 | Michael Hanselmann | wp = workerpool.WorkerPool("Test", 1, ChecksumBaseWorker) |
101 | 76094e37 | Michael Hanselmann | try:
|
102 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 1) |
103 | 76094e37 | Michael Hanselmann | |
104 | 76094e37 | Michael Hanselmann | ctx = ChecksumContext() |
105 | 76094e37 | Michael Hanselmann | checksum = ChecksumContext.CHECKSUM_START |
106 | f1501b3f | Michael Hanselmann | for i in range(1, 100): |
107 | 76094e37 | Michael Hanselmann | checksum = ChecksumContext.UpdateChecksum(checksum, i) |
108 | 76094e37 | Michael Hanselmann | wp.AddTask(ctx, i) |
109 | 76094e37 | Michael Hanselmann | |
110 | 76094e37 | Michael Hanselmann | wp.Quiesce() |
111 | 76094e37 | Michael Hanselmann | |
112 | 76094e37 | Michael Hanselmann | self._CheckNoTasks(wp)
|
113 | 76094e37 | Michael Hanselmann | |
114 | 76094e37 | Michael Hanselmann | # Check sum
|
115 | 76094e37 | Michael Hanselmann | ctx.lock.acquire() |
116 | 76094e37 | Michael Hanselmann | try:
|
117 | 76094e37 | Michael Hanselmann | self.assertEqual(checksum, ctx.checksum)
|
118 | 76094e37 | Michael Hanselmann | finally:
|
119 | 76094e37 | Michael Hanselmann | ctx.lock.release() |
120 | 76094e37 | Michael Hanselmann | finally:
|
121 | 76094e37 | Michael Hanselmann | wp.TerminateWorkers() |
122 | 76094e37 | Michael Hanselmann | self._CheckWorkerCount(wp, 0) |
123 | 76094e37 | Michael Hanselmann | |
124 | 76094e37 | Michael Hanselmann | def _CheckNoTasks(self, wp): |
125 | 76094e37 | Michael Hanselmann | wp._lock.acquire() |
126 | 76094e37 | Michael Hanselmann | try:
|
127 | 76094e37 | Michael Hanselmann | # The task queue must be empty now
|
128 | 76094e37 | Michael Hanselmann | self.failUnless(not wp._tasks) |
129 | 76094e37 | Michael Hanselmann | finally:
|
130 | 76094e37 | Michael Hanselmann | wp._lock.release() |
131 | 76094e37 | Michael Hanselmann | |
132 | 76094e37 | Michael Hanselmann | def _CheckWorkerCount(self, wp, num_workers): |
133 | 76094e37 | Michael Hanselmann | wp._lock.acquire() |
134 | 76094e37 | Michael Hanselmann | try:
|
135 | 76094e37 | Michael Hanselmann | self.assertEqual(len(wp._workers), num_workers) |
136 | 76094e37 | Michael Hanselmann | finally:
|
137 | 76094e37 | Michael Hanselmann | wp._lock.release() |
138 | 76094e37 | Michael Hanselmann | |
139 | 76094e37 | Michael Hanselmann | |
140 | 76094e37 | Michael Hanselmann | if __name__ == '__main__': |
141 | 25231ec5 | Michael Hanselmann | testutils.GanetiTestProgram() |