1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
# Copyright 2019 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""lock_machine.py related unit-tests.
MachineManagerTest tests MachineManager.
"""
from __future__ import print_function
__author__ = 'asharif@google.com (Ahmad Sharif)'
from multiprocessing import Process
import time
import unittest
import file_lock_machine
def LockAndSleep(machine):
file_lock_machine.Machine(machine, '/tmp', auto=True).Lock(exclusive=True)
time.sleep(1)
class MachineTest(unittest.TestCase):
"""Class for testing machine locking."""
def setUp(self):
pass
def testRepeatedUnlock(self):
mach = file_lock_machine.Machine('qqqraymes.mtv', '/tmp')
for _ in range(10):
self.assertTrue(mach.Unlock())
mach = file_lock_machine.Machine('qqqraymes.mtv', '/tmp', auto=True)
for _ in range(10):
self.assertTrue(mach.Unlock())
def testLockUnlock(self):
mach = file_lock_machine.Machine('otter.mtv', '/tmp')
for _ in range(10):
self.assertTrue(mach.Lock(exclusive=True))
self.assertTrue(mach.Unlock(exclusive=True))
mach = file_lock_machine.Machine('otter.mtv', '/tmp', True)
for _ in range(10):
self.assertTrue(mach.Lock(exclusive=True))
self.assertTrue(mach.Unlock(exclusive=True))
def testSharedLock(self):
mach = file_lock_machine.Machine('chrotomation.mtv', '/tmp')
for _ in range(10):
self.assertTrue(mach.Lock(exclusive=False))
for _ in range(10):
self.assertTrue(mach.Unlock(exclusive=False))
self.assertTrue(mach.Lock(exclusive=True))
self.assertTrue(mach.Unlock(exclusive=True))
mach = file_lock_machine.Machine('chrotomation.mtv', '/tmp', auto=True)
for _ in range(10):
self.assertTrue(mach.Lock(exclusive=False))
for _ in range(10):
self.assertTrue(mach.Unlock(exclusive=False))
self.assertTrue(mach.Lock(exclusive=True))
self.assertTrue(mach.Unlock(exclusive=True))
def testExclusiveLock(self):
mach = file_lock_machine.Machine('atree.mtv', '/tmp')
self.assertTrue(mach.Lock(exclusive=True))
for _ in range(10):
self.assertFalse(mach.Lock(exclusive=True))
self.assertFalse(mach.Lock(exclusive=False))
self.assertTrue(mach.Unlock(exclusive=True))
mach = file_lock_machine.Machine('atree.mtv', '/tmp', auto=True)
self.assertTrue(mach.Lock(exclusive=True))
for _ in range(10):
self.assertFalse(mach.Lock(exclusive=True))
self.assertFalse(mach.Lock(exclusive=False))
self.assertTrue(mach.Unlock(exclusive=True))
def testExclusiveState(self):
mach = file_lock_machine.Machine('testExclusiveState', '/tmp')
self.assertTrue(mach.Lock(exclusive=True))
for _ in range(10):
self.assertFalse(mach.Lock(exclusive=False))
self.assertTrue(mach.Unlock(exclusive=True))
mach = file_lock_machine.Machine('testExclusiveState', '/tmp', auto=True)
self.assertTrue(mach.Lock(exclusive=True))
for _ in range(10):
self.assertFalse(mach.Lock(exclusive=False))
self.assertTrue(mach.Unlock(exclusive=True))
def testAutoLockGone(self):
mach = file_lock_machine.Machine('lockgone', '/tmp', auto=True)
p = Process(target=LockAndSleep, args=('lockgone',))
p.start()
time.sleep(1.1)
p.join()
self.assertTrue(mach.Lock(exclusive=True))
def testAutoLockFromOther(self):
mach = file_lock_machine.Machine('other_lock', '/tmp', auto=True)
p = Process(target=LockAndSleep, args=('other_lock',))
p.start()
time.sleep(0.5)
self.assertFalse(mach.Lock(exclusive=True))
p.join()
time.sleep(0.6)
self.assertTrue(mach.Lock(exclusive=True))
def testUnlockByOthers(self):
mach = file_lock_machine.Machine('other_unlock', '/tmp', auto=True)
p = Process(target=LockAndSleep, args=('other_unlock',))
p.start()
time.sleep(0.5)
self.assertTrue(mach.Unlock(exclusive=True))
self.assertTrue(mach.Lock(exclusive=True))
if __name__ == '__main__':
unittest.main()
|
