root / testing / ganeti.utils_unittest.py @ 31ee599c
History | View | Annotate | Download (12.3 kB)
| 1 |
#!/usr/bin/python
|
|---|---|
| 2 |
#
|
| 3 |
|
| 4 |
# Copyright (C) 2006, 2007 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 |
# 02110-1301, USA.
|
| 20 |
|
| 21 |
|
| 22 |
"""Script for unittesting the utils module"""
|
| 23 |
|
| 24 |
import unittest |
| 25 |
import os |
| 26 |
import time |
| 27 |
import tempfile |
| 28 |
import os.path |
| 29 |
import md5 |
| 30 |
|
| 31 |
import ganeti |
| 32 |
from ganeti.utils import IsProcessAlive, Lock, Unlock, RunCmd, \ |
| 33 |
RemoveFile, CheckDict, MatchNameComponent, FormatUnit, \ |
| 34 |
ParseUnit, AddAuthorizedKey, RemoveAuthorizedKey, \ |
| 35 |
ShellQuote, ShellQuoteArgs |
| 36 |
from ganeti.errors import LockError, UnitParseError |
| 37 |
|
| 38 |
class TestIsProcessAlive(unittest.TestCase): |
| 39 |
"""Testing case for IsProcessAlive"""
|
| 40 |
def setUp(self): |
| 41 |
# create a zombie and a (hopefully) non-existing process id
|
| 42 |
self.pid_zombie = os.fork()
|
| 43 |
if self.pid_zombie == 0: |
| 44 |
os._exit(0)
|
| 45 |
elif self.pid_zombie < 0: |
| 46 |
raise SystemError("can't fork") |
| 47 |
self.pid_non_existing = os.fork()
|
| 48 |
if self.pid_non_existing == 0: |
| 49 |
os._exit(0)
|
| 50 |
elif self.pid_non_existing > 0: |
| 51 |
os.waitpid(self.pid_non_existing, 0) |
| 52 |
else:
|
| 53 |
raise SystemError("can't fork") |
| 54 |
|
| 55 |
|
| 56 |
def testExists(self): |
| 57 |
mypid = os.getpid() |
| 58 |
self.assert_(IsProcessAlive(mypid),
|
| 59 |
"can't find myself running")
|
| 60 |
|
| 61 |
def testZombie(self): |
| 62 |
self.assert_(not IsProcessAlive(self.pid_zombie), |
| 63 |
"zombie not detected as zombie")
|
| 64 |
|
| 65 |
|
| 66 |
def testNotExisting(self): |
| 67 |
self.assert_(not IsProcessAlive(self.pid_non_existing), |
| 68 |
"noexisting process detected")
|
| 69 |
|
| 70 |
|
| 71 |
class TestLocking(unittest.TestCase): |
| 72 |
"""Testing case for the Lock/Unlock functions"""
|
| 73 |
def clean_lock(self, name): |
| 74 |
try:
|
| 75 |
ganeti.utils.Unlock("unittest")
|
| 76 |
except LockError:
|
| 77 |
pass
|
| 78 |
|
| 79 |
|
| 80 |
def testLock(self): |
| 81 |
self.clean_lock("unittest") |
| 82 |
self.assertEqual(None, Lock("unittest")) |
| 83 |
|
| 84 |
|
| 85 |
def testUnlock(self): |
| 86 |
self.clean_lock("unittest") |
| 87 |
ganeti.utils.Lock("unittest")
|
| 88 |
self.assertEqual(None, Unlock("unittest")) |
| 89 |
|
| 90 |
|
| 91 |
def testDoubleLock(self): |
| 92 |
self.clean_lock("unittest") |
| 93 |
ganeti.utils.Lock("unittest")
|
| 94 |
self.assertRaises(LockError, Lock, "unittest") |
| 95 |
|
| 96 |
|
| 97 |
class TestRunCmd(unittest.TestCase): |
| 98 |
"""Testing case for the RunCmd function"""
|
| 99 |
|
| 100 |
def setUp(self): |
| 101 |
self.magic = time.ctime() + " ganeti test" |
| 102 |
|
| 103 |
def testOk(self): |
| 104 |
"""Test successful exit code"""
|
| 105 |
result = RunCmd("/bin/sh -c 'exit 0'")
|
| 106 |
self.assertEqual(result.exit_code, 0) |
| 107 |
|
| 108 |
def testFail(self): |
| 109 |
"""Test fail exit code"""
|
| 110 |
result = RunCmd("/bin/sh -c 'exit 1'")
|
| 111 |
self.assertEqual(result.exit_code, 1) |
| 112 |
|
| 113 |
|
| 114 |
def testStdout(self): |
| 115 |
"""Test standard output"""
|
| 116 |
cmd = 'echo -n "%s"' % self.magic |
| 117 |
result = RunCmd("/bin/sh -c '%s'" % cmd)
|
| 118 |
self.assertEqual(result.stdout, self.magic) |
| 119 |
|
| 120 |
|
| 121 |
def testStderr(self): |
| 122 |
"""Test standard error"""
|
| 123 |
cmd = 'echo -n "%s"' % self.magic |
| 124 |
result = RunCmd("/bin/sh -c '%s' 1>&2" % cmd)
|
| 125 |
self.assertEqual(result.stderr, self.magic) |
| 126 |
|
| 127 |
|
| 128 |
def testCombined(self): |
| 129 |
"""Test combined output"""
|
| 130 |
cmd = 'echo -n "A%s"; echo -n "B%s" 1>&2' % (self.magic, self.magic) |
| 131 |
result = RunCmd("/bin/sh -c '%s'" % cmd)
|
| 132 |
self.assertEqual(result.output, "A" + self.magic + "B" + self.magic) |
| 133 |
|
| 134 |
def testSignal(self): |
| 135 |
"""Test standard error"""
|
| 136 |
result = RunCmd("/bin/sh -c 'kill -15 $$'")
|
| 137 |
self.assertEqual(result.signal, 15) |
| 138 |
|
| 139 |
|
| 140 |
class TestRemoveFile(unittest.TestCase): |
| 141 |
"""Test case for the RemoveFile function"""
|
| 142 |
|
| 143 |
def setUp(self): |
| 144 |
"""Create a temp dir and file for each case"""
|
| 145 |
self.tmpdir = tempfile.mkdtemp('', 'ganeti-unittest-') |
| 146 |
fd, self.tmpfile = tempfile.mkstemp('', '', self.tmpdir) |
| 147 |
os.close(fd) |
| 148 |
|
| 149 |
def tearDown(self): |
| 150 |
if os.path.exists(self.tmpfile): |
| 151 |
os.unlink(self.tmpfile)
|
| 152 |
os.rmdir(self.tmpdir)
|
| 153 |
|
| 154 |
|
| 155 |
def testIgnoreDirs(self): |
| 156 |
"""Test that RemoveFile() ignores directories"""
|
| 157 |
self.assertEqual(None, RemoveFile(self.tmpdir)) |
| 158 |
|
| 159 |
|
| 160 |
def testIgnoreNotExisting(self): |
| 161 |
"""Test that RemoveFile() ignores non-existing files"""
|
| 162 |
RemoveFile(self.tmpfile)
|
| 163 |
RemoveFile(self.tmpfile)
|
| 164 |
|
| 165 |
|
| 166 |
def testRemoveFile(self): |
| 167 |
"""Test that RemoveFile does remove a file"""
|
| 168 |
RemoveFile(self.tmpfile)
|
| 169 |
if os.path.exists(self.tmpfile): |
| 170 |
self.fail("File '%s' not removed" % self.tmpfile) |
| 171 |
|
| 172 |
|
| 173 |
def testRemoveSymlink(self): |
| 174 |
"""Test that RemoveFile does remove symlinks"""
|
| 175 |
symlink = self.tmpdir + "/symlink" |
| 176 |
os.symlink("no-such-file", symlink)
|
| 177 |
RemoveFile(symlink) |
| 178 |
if os.path.exists(symlink):
|
| 179 |
self.fail("File '%s' not removed" % symlink) |
| 180 |
os.symlink(self.tmpfile, symlink)
|
| 181 |
RemoveFile(symlink) |
| 182 |
if os.path.exists(symlink):
|
| 183 |
self.fail("File '%s' not removed" % symlink) |
| 184 |
|
| 185 |
|
| 186 |
class TestCheckdict(unittest.TestCase): |
| 187 |
"""Test case for the CheckDict function"""
|
| 188 |
|
| 189 |
def testAdd(self): |
| 190 |
"""Test that CheckDict adds a missing key with the correct value"""
|
| 191 |
|
| 192 |
tgt = {'a':1}
|
| 193 |
tmpl = {'b': 2}
|
| 194 |
CheckDict(tgt, tmpl) |
| 195 |
if 'b' not in tgt or tgt['b'] != 2: |
| 196 |
self.fail("Failed to update dict") |
| 197 |
|
| 198 |
|
| 199 |
def testNoUpdate(self): |
| 200 |
"""Test that CheckDict does not overwrite an existing key"""
|
| 201 |
tgt = {'a':1, 'b': 3}
|
| 202 |
tmpl = {'b': 2}
|
| 203 |
CheckDict(tgt, tmpl) |
| 204 |
self.failUnlessEqual(tgt['b'], 3) |
| 205 |
|
| 206 |
|
| 207 |
class TestMatchNameComponent(unittest.TestCase): |
| 208 |
"""Test case for the MatchNameComponent function"""
|
| 209 |
|
| 210 |
def testEmptyList(self): |
| 211 |
"""Test that there is no match against an empty list"""
|
| 212 |
|
| 213 |
self.failUnlessEqual(MatchNameComponent("", []), None) |
| 214 |
self.failUnlessEqual(MatchNameComponent("test", []), None) |
| 215 |
|
| 216 |
def testSingleMatch(self): |
| 217 |
"""Test that a single match is performed correctly"""
|
| 218 |
mlist = ["test1.example.com", "test2.example.com", "test3.example.com"] |
| 219 |
for key in "test2", "test2.example", "test2.example.com": |
| 220 |
self.failUnlessEqual(MatchNameComponent(key, mlist), mlist[1]) |
| 221 |
|
| 222 |
def testMultipleMatches(self): |
| 223 |
"""Test that a multiple match is returned as None"""
|
| 224 |
mlist = ["test1.example.com", "test1.example.org", "test1.example.net"] |
| 225 |
for key in "test1", "test1.example": |
| 226 |
self.failUnlessEqual(MatchNameComponent(key, mlist), None) |
| 227 |
|
| 228 |
|
| 229 |
class TestFormatUnit(unittest.TestCase): |
| 230 |
"""Test case for the FormatUnit function"""
|
| 231 |
|
| 232 |
def testMiB(self): |
| 233 |
self.assertEqual(FormatUnit(1), '1M') |
| 234 |
self.assertEqual(FormatUnit(100), '100M') |
| 235 |
self.assertEqual(FormatUnit(1023), '1023M') |
| 236 |
|
| 237 |
def testGiB(self): |
| 238 |
self.assertEqual(FormatUnit(1024), '1.0G') |
| 239 |
self.assertEqual(FormatUnit(1536), '1.5G') |
| 240 |
self.assertEqual(FormatUnit(17133), '16.7G') |
| 241 |
self.assertEqual(FormatUnit(1024 * 1024 - 1), '1024.0G') |
| 242 |
|
| 243 |
def testTiB(self): |
| 244 |
self.assertEqual(FormatUnit(1024 * 1024), '1.0T') |
| 245 |
self.assertEqual(FormatUnit(5120 * 1024), '5.0T') |
| 246 |
self.assertEqual(FormatUnit(29829 * 1024), '29.1T') |
| 247 |
|
| 248 |
|
| 249 |
class TestParseUnit(unittest.TestCase): |
| 250 |
"""Test case for the ParseUnit function"""
|
| 251 |
|
| 252 |
SCALES = (('', 1), |
| 253 |
('M', 1), ('G', 1024), ('T', 1024 * 1024), |
| 254 |
('MB', 1), ('GB', 1024), ('TB', 1024 * 1024), |
| 255 |
('MiB', 1), ('GiB', 1024), ('TiB', 1024 * 1024)) |
| 256 |
|
| 257 |
def testRounding(self): |
| 258 |
self.assertEqual(ParseUnit('0'), 0) |
| 259 |
self.assertEqual(ParseUnit('1'), 4) |
| 260 |
self.assertEqual(ParseUnit('2'), 4) |
| 261 |
self.assertEqual(ParseUnit('3'), 4) |
| 262 |
|
| 263 |
self.assertEqual(ParseUnit('124'), 124) |
| 264 |
self.assertEqual(ParseUnit('125'), 128) |
| 265 |
self.assertEqual(ParseUnit('126'), 128) |
| 266 |
self.assertEqual(ParseUnit('127'), 128) |
| 267 |
self.assertEqual(ParseUnit('128'), 128) |
| 268 |
self.assertEqual(ParseUnit('129'), 132) |
| 269 |
self.assertEqual(ParseUnit('130'), 132) |
| 270 |
|
| 271 |
def testFloating(self): |
| 272 |
self.assertEqual(ParseUnit('0'), 0) |
| 273 |
self.assertEqual(ParseUnit('0.5'), 4) |
| 274 |
self.assertEqual(ParseUnit('1.75'), 4) |
| 275 |
self.assertEqual(ParseUnit('1.99'), 4) |
| 276 |
self.assertEqual(ParseUnit('2.00'), 4) |
| 277 |
self.assertEqual(ParseUnit('2.01'), 4) |
| 278 |
self.assertEqual(ParseUnit('3.99'), 4) |
| 279 |
self.assertEqual(ParseUnit('4.00'), 4) |
| 280 |
self.assertEqual(ParseUnit('4.01'), 8) |
| 281 |
self.assertEqual(ParseUnit('1.5G'), 1536) |
| 282 |
self.assertEqual(ParseUnit('1.8G'), 1844) |
| 283 |
self.assertEqual(ParseUnit('8.28T'), 8682212) |
| 284 |
|
| 285 |
def testSuffixes(self): |
| 286 |
for sep in ('', ' ', ' ', "\t", "\t "): |
| 287 |
for suffix, scale in TestParseUnit.SCALES: |
| 288 |
for func in (lambda x: x, str.lower, str.upper): |
| 289 |
self.assertEqual(ParseUnit('1024' + sep + func(suffix)), 1024 * scale) |
| 290 |
|
| 291 |
def testInvalidInput(self): |
| 292 |
for sep in ('-', '_', ',', 'a'): |
| 293 |
for suffix, _ in TestParseUnit.SCALES: |
| 294 |
self.assertRaises(UnitParseError, ParseUnit, '1' + sep + suffix) |
| 295 |
|
| 296 |
for suffix, _ in TestParseUnit.SCALES: |
| 297 |
self.assertRaises(UnitParseError, ParseUnit, '1,3' + suffix) |
| 298 |
|
| 299 |
|
| 300 |
class TestSshKeys(unittest.TestCase): |
| 301 |
"""Test case for the AddAuthorizedKey function"""
|
| 302 |
|
| 303 |
KEY_A = 'ssh-dss AAAAB3NzaC1w5256closdj32mZaQU root@key-a'
|
| 304 |
KEY_B = ('command="/usr/bin/fooserver -t --verbose",from="1.2.3.4" '
|
| 305 |
'ssh-dss AAAAB3NzaC1w520smc01ms0jfJs22 root@key-b')
|
| 306 |
|
| 307 |
# NOTE: The MD5 sums below were calculated after manually
|
| 308 |
# checking the output files.
|
| 309 |
|
| 310 |
def writeTestFile(self): |
| 311 |
(fd, tmpname) = tempfile.mkstemp(prefix = 'ganeti-test')
|
| 312 |
f = os.fdopen(fd, 'w')
|
| 313 |
try:
|
| 314 |
f.write(TestSshKeys.KEY_A) |
| 315 |
f.write("\n")
|
| 316 |
f.write(TestSshKeys.KEY_B) |
| 317 |
f.write("\n")
|
| 318 |
finally:
|
| 319 |
f.close() |
| 320 |
|
| 321 |
return tmpname
|
| 322 |
|
| 323 |
def testAddingNewKey(self): |
| 324 |
tmpname = self.writeTestFile()
|
| 325 |
try:
|
| 326 |
AddAuthorizedKey(tmpname, 'ssh-dss AAAAB3NzaC1kc3MAAACB root@test')
|
| 327 |
|
| 328 |
f = open(tmpname, 'r') |
| 329 |
try:
|
| 330 |
self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
| 331 |
'ccc71523108ca6e9d0343797dc3e9f16')
|
| 332 |
finally:
|
| 333 |
f.close() |
| 334 |
finally:
|
| 335 |
os.unlink(tmpname) |
| 336 |
|
| 337 |
def testAddingAlmostButNotCompletlyTheSameKey(self): |
| 338 |
tmpname = self.writeTestFile()
|
| 339 |
try:
|
| 340 |
AddAuthorizedKey(tmpname, |
| 341 |
'ssh-dss AAAAB3NzaC1w5256closdj32mZaQU root@test')
|
| 342 |
|
| 343 |
f = open(tmpname, 'r') |
| 344 |
try:
|
| 345 |
self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
| 346 |
'f2c939d57addb5b3a6846884be896b46')
|
| 347 |
finally:
|
| 348 |
f.close() |
| 349 |
finally:
|
| 350 |
os.unlink(tmpname) |
| 351 |
|
| 352 |
def testAddingExistingKeyWithSomeMoreSpaces(self): |
| 353 |
tmpname = self.writeTestFile()
|
| 354 |
try:
|
| 355 |
AddAuthorizedKey(tmpname, |
| 356 |
'ssh-dss AAAAB3NzaC1w5256closdj32mZaQU root@key-a')
|
| 357 |
|
| 358 |
f = open(tmpname, 'r') |
| 359 |
try:
|
| 360 |
self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
| 361 |
'4e612764808bd46337eb0f575415fc30')
|
| 362 |
finally:
|
| 363 |
f.close() |
| 364 |
finally:
|
| 365 |
os.unlink(tmpname) |
| 366 |
|
| 367 |
def testRemovingExistingKeyWithSomeMoreSpaces(self): |
| 368 |
tmpname = self.writeTestFile()
|
| 369 |
try:
|
| 370 |
RemoveAuthorizedKey(tmpname, |
| 371 |
'ssh-dss AAAAB3NzaC1w5256closdj32mZaQU root@key-a')
|
| 372 |
|
| 373 |
f = open(tmpname, 'r') |
| 374 |
try:
|
| 375 |
self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
| 376 |
'77516d987fca07f70e30b830b3e4f2ed')
|
| 377 |
finally:
|
| 378 |
f.close() |
| 379 |
finally:
|
| 380 |
os.unlink(tmpname) |
| 381 |
|
| 382 |
def testRemovingNonExistingKey(self): |
| 383 |
tmpname = self.writeTestFile()
|
| 384 |
try:
|
| 385 |
RemoveAuthorizedKey(tmpname, |
| 386 |
'ssh-dss AAAAB3Nsdfj230xxjxJjsjwjsjdjU root@test')
|
| 387 |
|
| 388 |
f = open(tmpname, 'r') |
| 389 |
try:
|
| 390 |
self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
| 391 |
'4e612764808bd46337eb0f575415fc30')
|
| 392 |
finally:
|
| 393 |
f.close() |
| 394 |
finally:
|
| 395 |
os.unlink(tmpname) |
| 396 |
|
| 397 |
|
| 398 |
class TestShellQuoting(unittest.TestCase): |
| 399 |
"""Test case for shell quoting functions"""
|
| 400 |
|
| 401 |
def testShellQuote(self): |
| 402 |
self.assertEqual(ShellQuote('abc'), "abc") |
| 403 |
self.assertEqual(ShellQuote('ab"c'), "'ab\"c'") |
| 404 |
self.assertEqual(ShellQuote("a'bc"), "'a'\\''bc'") |
| 405 |
self.assertEqual(ShellQuote("a b c"), "'a b c'") |
| 406 |
self.assertEqual(ShellQuote("a b\\ c"), "'a b\\ c'") |
| 407 |
|
| 408 |
def testShellQuoteArgs(self): |
| 409 |
self.assertEqual(ShellQuoteArgs(['a', 'b', 'c']), "a b c") |
| 410 |
self.assertEqual(ShellQuoteArgs(['a', 'b"', 'c']), "a 'b\"' c") |
| 411 |
self.assertEqual(ShellQuoteArgs(['a', 'b\'', 'c']), "a 'b'\\\''' c") |
| 412 |
|
| 413 |
|
| 414 |
if __name__ == '__main__': |
| 415 |
unittest.main() |