root / test / ganeti.uidpool_unittest.py @ 7578ab0a
History | View | Annotate | Download (3.8 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 |
# 0.0510-1301, USA.
|
20 |
|
21 |
|
22 |
"""Script for unittesting the uidpool module"""
|
23 |
|
24 |
|
25 |
import os |
26 |
import tempfile |
27 |
import unittest |
28 |
|
29 |
from ganeti import constants |
30 |
from ganeti import uidpool |
31 |
from ganeti import errors |
32 |
|
33 |
import testutils |
34 |
|
35 |
|
36 |
class TestUidPool(testutils.GanetiTestCase): |
37 |
"""Uid-pool tests"""
|
38 |
|
39 |
def setUp(self): |
40 |
self.old_uid_min = constants.UIDPOOL_UID_MIN
|
41 |
self.old_uid_max = constants.UIDPOOL_UID_MAX
|
42 |
constants.UIDPOOL_UID_MIN = 1
|
43 |
constants.UIDPOOL_UID_MAX = 10
|
44 |
constants.UIDPOOL_LOCKDIR = tempfile.mkdtemp() |
45 |
|
46 |
def tearDown(self): |
47 |
constants.UIDPOOL_UID_MIN = self.old_uid_min
|
48 |
constants.UIDPOOL_UID_MAX = self.old_uid_max
|
49 |
for name in os.listdir(constants.UIDPOOL_LOCKDIR): |
50 |
os.unlink(os.path.join(constants.UIDPOOL_LOCKDIR, name)) |
51 |
os.rmdir(constants.UIDPOOL_LOCKDIR) |
52 |
|
53 |
def testParseUidPool(self): |
54 |
self.assertEqualValues(
|
55 |
uidpool.ParseUidPool("1-100,200,"),
|
56 |
[(1, 100), (200, 200)]) |
57 |
self.assertEqualValues(
|
58 |
uidpool.ParseUidPool("1000:2000-2500", separator=":"), |
59 |
[(1000, 1000), (2000, 2500)]) |
60 |
self.assertEqualValues(
|
61 |
uidpool.ParseUidPool("1000\n2000-2500", separator="\n"), |
62 |
[(1000, 1000), (2000, 2500)]) |
63 |
|
64 |
def testCheckUidPool(self): |
65 |
# UID < UIDPOOL_UID_MIN
|
66 |
self.assertRaises(errors.OpPrereqError,
|
67 |
uidpool.CheckUidPool, |
68 |
[(0, 0)]) |
69 |
# UID > UIDPOOL_UID_MAX
|
70 |
self.assertRaises(errors.OpPrereqError,
|
71 |
uidpool.CheckUidPool, |
72 |
[(11, 11)]) |
73 |
# lower boundary > higher boundary
|
74 |
self.assertRaises(errors.OpPrereqError,
|
75 |
uidpool.CheckUidPool, |
76 |
[(2, 1)]) |
77 |
|
78 |
def testFormatUidPool(self): |
79 |
self.assertEqualValues(
|
80 |
uidpool.FormatUidPool([(1, 100), (200, 200)]), |
81 |
"1-100, 200")
|
82 |
self.assertEqualValues(
|
83 |
uidpool.FormatUidPool([(1, 100), (200, 200)], separator=":"), |
84 |
"1-100:200")
|
85 |
self.assertEqualValues(
|
86 |
uidpool.FormatUidPool([(1, 100), (200, 200)], separator="\n"), |
87 |
"1-100\n200")
|
88 |
|
89 |
def testRequestUnusedUid(self): |
90 |
# Check with known used user-ids
|
91 |
#
|
92 |
# Test with user-id "0" and with our own user-id, both
|
93 |
# of which are guaranteed to be used user-ids
|
94 |
for uid in 0, os.getuid(): |
95 |
self.assertRaises(errors.LockError,
|
96 |
uidpool.RequestUnusedUid, |
97 |
set([uid]))
|
98 |
|
99 |
# Check with a single, known unused user-id
|
100 |
#
|
101 |
# We use "-1" here, which is not a valid user-id, so it's
|
102 |
# guaranteed that it's unused.
|
103 |
uid = uidpool.RequestUnusedUid(set([-1])) |
104 |
self.assertEqualValues(uid.GetUid(), -1) |
105 |
|
106 |
# Check uid-pool exhaustion
|
107 |
#
|
108 |
# uid "-1" is locked now, so RequestUnusedUid is expected to fail
|
109 |
self.assertRaises(errors.LockError,
|
110 |
uidpool.RequestUnusedUid, |
111 |
set([-1])) |
112 |
|
113 |
# Check unlocking
|
114 |
uid.Unlock() |
115 |
# After unlocking, "-1" should be available again
|
116 |
uid = uidpool.RequestUnusedUid(set([-1])) |
117 |
self.assertEqualValues(uid.GetUid(), -1) |
118 |
|
119 |
|
120 |
if __name__ == '__main__': |
121 |
testutils.GanetiTestProgram() |