root / test / ganeti.utils_unittest.py @ 899d2a81
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#!/usr/bin/python
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#
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# Copyright (C) 2006, 2007 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Script for unittesting the utils module"""
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import unittest |
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import os |
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import time |
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import tempfile |
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import os.path |
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import md5 |
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import socket |
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import shutil |
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import re |
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import ganeti |
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from ganeti import constants |
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from ganeti import utils |
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from ganeti.utils import IsProcessAlive, Lock, Unlock, RunCmd, \ |
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RemoveFile, CheckDict, MatchNameComponent, FormatUnit, \ |
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ParseUnit, AddAuthorizedKey, RemoveAuthorizedKey, \ |
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ShellQuote, ShellQuoteArgs, TcpPing, ListVisibleFiles, \ |
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AddEtcHostsEntry, RemoveEtcHostsEntry |
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from ganeti.errors import LockError, UnitParseError |
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class TestIsProcessAlive(unittest.TestCase): |
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"""Testing case for IsProcessAlive"""
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def setUp(self): |
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# create a zombie and a (hopefully) non-existing process id
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self.pid_zombie = os.fork()
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if self.pid_zombie == 0: |
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os._exit(0)
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elif self.pid_zombie < 0: |
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raise SystemError("can't fork") |
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self.pid_non_existing = os.fork()
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if self.pid_non_existing == 0: |
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os._exit(0)
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elif self.pid_non_existing > 0: |
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os.waitpid(self.pid_non_existing, 0) |
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else:
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raise SystemError("can't fork") |
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def testExists(self): |
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mypid = os.getpid() |
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self.assert_(IsProcessAlive(mypid),
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"can't find myself running")
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def testZombie(self): |
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self.assert_(not IsProcessAlive(self.pid_zombie), |
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"zombie not detected as zombie")
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def testNotExisting(self): |
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self.assert_(not IsProcessAlive(self.pid_non_existing), |
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"noexisting process detected")
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class TestLocking(unittest.TestCase): |
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"""Testing case for the Lock/Unlock functions"""
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def clean_lock(self, name): |
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try:
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ganeti.utils.Unlock("unittest")
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except LockError:
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pass
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def testLock(self): |
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self.clean_lock("unittest") |
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self.assertEqual(None, Lock("unittest")) |
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def testUnlock(self): |
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self.clean_lock("unittest") |
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ganeti.utils.Lock("unittest")
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self.assertEqual(None, Unlock("unittest")) |
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def testDoubleLock(self): |
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self.clean_lock("unittest") |
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ganeti.utils.Lock("unittest")
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self.assertRaises(LockError, Lock, "unittest") |
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class TestRunCmd(unittest.TestCase): |
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"""Testing case for the RunCmd function"""
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def setUp(self): |
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self.magic = time.ctime() + " ganeti test" |
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def testOk(self): |
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"""Test successful exit code"""
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result = RunCmd("/bin/sh -c 'exit 0'")
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self.assertEqual(result.exit_code, 0) |
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def testFail(self): |
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"""Test fail exit code"""
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result = RunCmd("/bin/sh -c 'exit 1'")
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self.assertEqual(result.exit_code, 1) |
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def testStdout(self): |
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"""Test standard output"""
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cmd = 'echo -n "%s"' % self.magic |
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result = RunCmd("/bin/sh -c '%s'" % cmd)
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self.assertEqual(result.stdout, self.magic) |
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def testStderr(self): |
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"""Test standard error"""
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cmd = 'echo -n "%s"' % self.magic |
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result = RunCmd("/bin/sh -c '%s' 1>&2" % cmd)
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self.assertEqual(result.stderr, self.magic) |
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def testCombined(self): |
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"""Test combined output"""
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cmd = 'echo -n "A%s"; echo -n "B%s" 1>&2' % (self.magic, self.magic) |
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result = RunCmd("/bin/sh -c '%s'" % cmd)
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self.assertEqual(result.output, "A" + self.magic + "B" + self.magic) |
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def testSignal(self): |
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"""Test standard error"""
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result = RunCmd("/bin/sh -c 'kill -15 $$'")
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self.assertEqual(result.signal, 15) |
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def testListRun(self): |
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"""Test list runs"""
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result = RunCmd(["true"])
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self.assertEqual(result.signal, None) |
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self.assertEqual(result.exit_code, 0) |
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result = RunCmd(["/bin/sh", "-c", "exit 1"]) |
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self.assertEqual(result.signal, None) |
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self.assertEqual(result.exit_code, 1) |
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result = RunCmd(["echo", "-n", self.magic]) |
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self.assertEqual(result.signal, None) |
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self.assertEqual(result.exit_code, 0) |
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self.assertEqual(result.stdout, self.magic) |
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def testLang(self): |
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"""Test locale environment"""
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old_env = os.environ.copy() |
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try:
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os.environ["LANG"] = "en_US.UTF-8" |
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os.environ["LC_ALL"] = "en_US.UTF-8" |
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result = RunCmd(["locale"])
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for line in result.output.splitlines(): |
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key, value = line.split("=", 1) |
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# Ignore these variables, they're overridden by LC_ALL
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if key == "LANG" or key == "LANGUAGE": |
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continue
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self.failIf(value and value != "C" and value != '"C"', |
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"Variable %s is set to the invalid value '%s'" % (key, value))
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finally:
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os.environ = old_env |
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class TestRemoveFile(unittest.TestCase): |
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"""Test case for the RemoveFile function"""
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def setUp(self): |
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"""Create a temp dir and file for each case"""
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self.tmpdir = tempfile.mkdtemp('', 'ganeti-unittest-') |
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fd, self.tmpfile = tempfile.mkstemp('', '', self.tmpdir) |
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os.close(fd) |
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def tearDown(self): |
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if os.path.exists(self.tmpfile): |
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os.unlink(self.tmpfile)
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os.rmdir(self.tmpdir)
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def testIgnoreDirs(self): |
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"""Test that RemoveFile() ignores directories"""
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self.assertEqual(None, RemoveFile(self.tmpdir)) |
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def testIgnoreNotExisting(self): |
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"""Test that RemoveFile() ignores non-existing files"""
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RemoveFile(self.tmpfile)
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RemoveFile(self.tmpfile)
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def testRemoveFile(self): |
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"""Test that RemoveFile does remove a file"""
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RemoveFile(self.tmpfile)
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if os.path.exists(self.tmpfile): |
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self.fail("File '%s' not removed" % self.tmpfile) |
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def testRemoveSymlink(self): |
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"""Test that RemoveFile does remove symlinks"""
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symlink = self.tmpdir + "/symlink" |
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os.symlink("no-such-file", symlink)
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RemoveFile(symlink) |
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if os.path.exists(symlink):
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self.fail("File '%s' not removed" % symlink) |
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os.symlink(self.tmpfile, symlink)
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RemoveFile(symlink) |
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if os.path.exists(symlink):
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self.fail("File '%s' not removed" % symlink) |
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class TestCheckdict(unittest.TestCase): |
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"""Test case for the CheckDict function"""
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def testAdd(self): |
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"""Test that CheckDict adds a missing key with the correct value"""
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tgt = {'a':1}
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tmpl = {'b': 2}
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CheckDict(tgt, tmpl) |
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if 'b' not in tgt or tgt['b'] != 2: |
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self.fail("Failed to update dict") |
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def testNoUpdate(self): |
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"""Test that CheckDict does not overwrite an existing key"""
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tgt = {'a':1, 'b': 3}
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tmpl = {'b': 2}
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CheckDict(tgt, tmpl) |
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self.failUnlessEqual(tgt['b'], 3) |
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class TestMatchNameComponent(unittest.TestCase): |
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"""Test case for the MatchNameComponent function"""
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def testEmptyList(self): |
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"""Test that there is no match against an empty list"""
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self.failUnlessEqual(MatchNameComponent("", []), None) |
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self.failUnlessEqual(MatchNameComponent("test", []), None) |
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def testSingleMatch(self): |
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"""Test that a single match is performed correctly"""
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mlist = ["test1.example.com", "test2.example.com", "test3.example.com"] |
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for key in "test2", "test2.example", "test2.example.com": |
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self.failUnlessEqual(MatchNameComponent(key, mlist), mlist[1]) |
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def testMultipleMatches(self): |
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"""Test that a multiple match is returned as None"""
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mlist = ["test1.example.com", "test1.example.org", "test1.example.net"] |
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for key in "test1", "test1.example": |
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self.failUnlessEqual(MatchNameComponent(key, mlist), None) |
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class TestFormatUnit(unittest.TestCase): |
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"""Test case for the FormatUnit function"""
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def testMiB(self): |
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self.assertEqual(FormatUnit(1), '1M') |
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self.assertEqual(FormatUnit(100), '100M') |
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self.assertEqual(FormatUnit(1023), '1023M') |
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def testGiB(self): |
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self.assertEqual(FormatUnit(1024), '1.0G') |
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self.assertEqual(FormatUnit(1536), '1.5G') |
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self.assertEqual(FormatUnit(17133), '16.7G') |
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self.assertEqual(FormatUnit(1024 * 1024 - 1), '1024.0G') |
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def testTiB(self): |
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self.assertEqual(FormatUnit(1024 * 1024), '1.0T') |
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self.assertEqual(FormatUnit(5120 * 1024), '5.0T') |
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self.assertEqual(FormatUnit(29829 * 1024), '29.1T') |
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class TestParseUnit(unittest.TestCase): |
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"""Test case for the ParseUnit function"""
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SCALES = (('', 1), |
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('M', 1), ('G', 1024), ('T', 1024 * 1024), |
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('MB', 1), ('GB', 1024), ('TB', 1024 * 1024), |
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('MiB', 1), ('GiB', 1024), ('TiB', 1024 * 1024)) |
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def testRounding(self): |
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self.assertEqual(ParseUnit('0'), 0) |
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self.assertEqual(ParseUnit('1'), 4) |
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self.assertEqual(ParseUnit('2'), 4) |
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self.assertEqual(ParseUnit('3'), 4) |
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self.assertEqual(ParseUnit('124'), 124) |
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self.assertEqual(ParseUnit('125'), 128) |
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self.assertEqual(ParseUnit('126'), 128) |
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self.assertEqual(ParseUnit('127'), 128) |
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self.assertEqual(ParseUnit('128'), 128) |
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self.assertEqual(ParseUnit('129'), 132) |
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self.assertEqual(ParseUnit('130'), 132) |
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def testFloating(self): |
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self.assertEqual(ParseUnit('0'), 0) |
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self.assertEqual(ParseUnit('0.5'), 4) |
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self.assertEqual(ParseUnit('1.75'), 4) |
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self.assertEqual(ParseUnit('1.99'), 4) |
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self.assertEqual(ParseUnit('2.00'), 4) |
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self.assertEqual(ParseUnit('2.01'), 4) |
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self.assertEqual(ParseUnit('3.99'), 4) |
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self.assertEqual(ParseUnit('4.00'), 4) |
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self.assertEqual(ParseUnit('4.01'), 8) |
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self.assertEqual(ParseUnit('1.5G'), 1536) |
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self.assertEqual(ParseUnit('1.8G'), 1844) |
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self.assertEqual(ParseUnit('8.28T'), 8682212) |
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def testSuffixes(self): |
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for sep in ('', ' ', ' ', "\t", "\t "): |
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for suffix, scale in TestParseUnit.SCALES: |
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for func in (lambda x: x, str.lower, str.upper): |
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self.assertEqual(ParseUnit('1024' + sep + func(suffix)), 1024 * scale) |
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def testInvalidInput(self): |
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for sep in ('-', '_', ',', 'a'): |
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for suffix, _ in TestParseUnit.SCALES: |
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self.assertRaises(UnitParseError, ParseUnit, '1' + sep + suffix) |
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for suffix, _ in TestParseUnit.SCALES: |
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self.assertRaises(UnitParseError, ParseUnit, '1,3' + suffix) |
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class TestSshKeys(unittest.TestCase): |
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"""Test case for the AddAuthorizedKey function"""
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KEY_A = 'ssh-dss AAAAB3NzaC1w5256closdj32mZaQU root@key-a'
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KEY_B = ('command="/usr/bin/fooserver -t --verbose",from="1.2.3.4" '
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'ssh-dss AAAAB3NzaC1w520smc01ms0jfJs22 root@key-b')
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# NOTE: The MD5 sums below were calculated after manually
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# checking the output files.
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def writeTestFile(self): |
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(fd, tmpname) = tempfile.mkstemp(prefix = 'ganeti-test')
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f = os.fdopen(fd, 'w')
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try:
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f.write(TestSshKeys.KEY_A) |
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f.write("\n")
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f.write(TestSshKeys.KEY_B) |
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f.write("\n")
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finally:
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f.close() |
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return tmpname
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def testAddingNewKey(self): |
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tmpname = self.writeTestFile()
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try:
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AddAuthorizedKey(tmpname, 'ssh-dss AAAAB3NzaC1kc3MAAACB root@test')
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f = open(tmpname, 'r') |
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try:
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self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
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'ccc71523108ca6e9d0343797dc3e9f16')
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finally:
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f.close() |
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finally:
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os.unlink(tmpname) |
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def testAddingAlmostButNotCompletlyTheSameKey(self): |
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tmpname = self.writeTestFile()
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try:
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AddAuthorizedKey(tmpname, |
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'ssh-dss AAAAB3NzaC1w5256closdj32mZaQU root@test')
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f = open(tmpname, 'r') |
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try:
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self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
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'f2c939d57addb5b3a6846884be896b46')
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finally:
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f.close() |
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finally:
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os.unlink(tmpname) |
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def testAddingExistingKeyWithSomeMoreSpaces(self): |
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tmpname = self.writeTestFile()
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try:
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AddAuthorizedKey(tmpname, |
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'ssh-dss AAAAB3NzaC1w5256closdj32mZaQU root@key-a')
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|
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f = open(tmpname, 'r') |
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try:
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self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
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'4e612764808bd46337eb0f575415fc30')
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finally:
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f.close() |
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finally:
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os.unlink(tmpname) |
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|
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def testRemovingExistingKeyWithSomeMoreSpaces(self): |
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tmpname = self.writeTestFile()
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try:
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RemoveAuthorizedKey(tmpname, |
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'ssh-dss AAAAB3NzaC1w5256closdj32mZaQU root@key-a')
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|
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f = open(tmpname, 'r') |
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try:
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self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
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'77516d987fca07f70e30b830b3e4f2ed')
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finally:
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f.close() |
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finally:
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os.unlink(tmpname) |
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|
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def testRemovingNonExistingKey(self): |
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tmpname = self.writeTestFile()
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try:
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RemoveAuthorizedKey(tmpname, |
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'ssh-dss AAAAB3Nsdfj230xxjxJjsjwjsjdjU root@test')
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|
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f = open(tmpname, 'r') |
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try:
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self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
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'4e612764808bd46337eb0f575415fc30')
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finally:
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f.close() |
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finally:
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os.unlink(tmpname) |
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|
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|
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class TestEtcHosts(unittest.TestCase): |
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"""Test functions modifying /etc/hosts"""
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def writeTestFile(self): |
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(fd, tmpname) = tempfile.mkstemp(prefix = 'ganeti-test')
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f = os.fdopen(fd, 'w')
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try:
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f.write('# This is a test file for /etc/hosts\n')
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f.write('127.0.0.1\tlocalhost\n')
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f.write('192.168.1.1 router gw\n')
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finally:
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f.close() |
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return tmpname
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|
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def testAddingNewIp(self): |
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tmpname = self.writeTestFile()
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try:
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AddEtcHostsEntry(tmpname, 'myhost.domain.tld', '1.2.3.4') |
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|
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f = open(tmpname, 'r') |
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try:
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self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
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'00e0e88250482e7449743c89a49e9349')
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finally:
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f.close() |
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finally:
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os.unlink(tmpname) |
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|
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def testAddingExistingIp(self): |
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tmpname = self.writeTestFile()
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try:
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AddEtcHostsEntry(tmpname, 'myhost.domain.tld', '192.168.1.1') |
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|
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f = open(tmpname, 'r') |
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try:
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self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
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'4dc04c0acdd247175e0b980c6beea822')
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| 473 |
finally:
|
| 474 |
f.close() |
| 475 |
finally:
|
| 476 |
os.unlink(tmpname) |
| 477 |
|
| 478 |
def testRemovingExistingHost(self): |
| 479 |
tmpname = self.writeTestFile()
|
| 480 |
try:
|
| 481 |
RemoveEtcHostsEntry(tmpname, 'router')
|
| 482 |
|
| 483 |
f = open(tmpname, 'r') |
| 484 |
try:
|
| 485 |
self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
| 486 |
'7d1e7a559eedbc25e0dff67d33ccac84')
|
| 487 |
finally:
|
| 488 |
f.close() |
| 489 |
finally:
|
| 490 |
os.unlink(tmpname) |
| 491 |
|
| 492 |
def testRemovingSingleExistingHost(self): |
| 493 |
tmpname = self.writeTestFile()
|
| 494 |
try:
|
| 495 |
RemoveEtcHostsEntry(tmpname, 'localhost')
|
| 496 |
|
| 497 |
f = open(tmpname, 'r') |
| 498 |
try:
|
| 499 |
self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
| 500 |
'ec4e4589b56f82fdb88db5675de011b1')
|
| 501 |
finally:
|
| 502 |
f.close() |
| 503 |
finally:
|
| 504 |
os.unlink(tmpname) |
| 505 |
|
| 506 |
def testRemovingNonExistingHost(self): |
| 507 |
tmpname = self.writeTestFile()
|
| 508 |
try:
|
| 509 |
RemoveEtcHostsEntry(tmpname, 'myhost')
|
| 510 |
|
| 511 |
f = open(tmpname, 'r') |
| 512 |
try:
|
| 513 |
self.assertEqual(md5.new(f.read(8192)).hexdigest(), |
| 514 |
'aa005bddc6d9ee399c296953f194929e')
|
| 515 |
finally:
|
| 516 |
f.close() |
| 517 |
finally:
|
| 518 |
os.unlink(tmpname) |
| 519 |
|
| 520 |
|
| 521 |
class TestShellQuoting(unittest.TestCase): |
| 522 |
"""Test case for shell quoting functions"""
|
| 523 |
|
| 524 |
def testShellQuote(self): |
| 525 |
self.assertEqual(ShellQuote('abc'), "abc") |
| 526 |
self.assertEqual(ShellQuote('ab"c'), "'ab\"c'") |
| 527 |
self.assertEqual(ShellQuote("a'bc"), "'a'\\''bc'") |
| 528 |
self.assertEqual(ShellQuote("a b c"), "'a b c'") |
| 529 |
self.assertEqual(ShellQuote("a b\\ c"), "'a b\\ c'") |
| 530 |
|
| 531 |
def testShellQuoteArgs(self): |
| 532 |
self.assertEqual(ShellQuoteArgs(['a', 'b', 'c']), "a b c") |
| 533 |
self.assertEqual(ShellQuoteArgs(['a', 'b"', 'c']), "a 'b\"' c") |
| 534 |
self.assertEqual(ShellQuoteArgs(['a', 'b\'', 'c']), "a 'b'\\\''' c") |
| 535 |
|
| 536 |
|
| 537 |
class TestTcpPing(unittest.TestCase): |
| 538 |
"""Testcase for TCP version of ping - against listen(2)ing port"""
|
| 539 |
|
| 540 |
def setUp(self): |
| 541 |
self.listener = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
| 542 |
self.listener.bind((constants.LOCALHOST_IP_ADDRESS, 0)) |
| 543 |
self.listenerport = self.listener.getsockname()[1] |
| 544 |
self.listener.listen(1) |
| 545 |
|
| 546 |
def tearDown(self): |
| 547 |
self.listener.shutdown(socket.SHUT_RDWR)
|
| 548 |
del self.listener |
| 549 |
del self.listenerport |
| 550 |
|
| 551 |
def testTcpPingToLocalHostAccept(self): |
| 552 |
self.assert_(TcpPing(constants.LOCALHOST_IP_ADDRESS,
|
| 553 |
constants.LOCALHOST_IP_ADDRESS, |
| 554 |
self.listenerport,
|
| 555 |
timeout=10,
|
| 556 |
live_port_needed=True),
|
| 557 |
"failed to connect to test listener")
|
| 558 |
|
| 559 |
|
| 560 |
class TestTcpPingDeaf(unittest.TestCase): |
| 561 |
"""Testcase for TCP version of ping - against non listen(2)ing port"""
|
| 562 |
|
| 563 |
def setUp(self): |
| 564 |
self.deaflistener = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
| 565 |
self.deaflistener.bind((constants.LOCALHOST_IP_ADDRESS, 0)) |
| 566 |
self.deaflistenerport = self.deaflistener.getsockname()[1] |
| 567 |
|
| 568 |
def tearDown(self): |
| 569 |
del self.deaflistener |
| 570 |
del self.deaflistenerport |
| 571 |
|
| 572 |
def testTcpPingToLocalHostAcceptDeaf(self): |
| 573 |
self.failIf(TcpPing(constants.LOCALHOST_IP_ADDRESS,
|
| 574 |
constants.LOCALHOST_IP_ADDRESS, |
| 575 |
self.deaflistenerport,
|
| 576 |
timeout=constants.TCP_PING_TIMEOUT, |
| 577 |
live_port_needed=True), # need successful connect(2) |
| 578 |
"successfully connected to deaf listener")
|
| 579 |
|
| 580 |
def testTcpPingToLocalHostNoAccept(self): |
| 581 |
self.assert_(TcpPing(constants.LOCALHOST_IP_ADDRESS,
|
| 582 |
constants.LOCALHOST_IP_ADDRESS, |
| 583 |
self.deaflistenerport,
|
| 584 |
timeout=constants.TCP_PING_TIMEOUT, |
| 585 |
live_port_needed=False), # ECONNREFUSED is OK |
| 586 |
"failed to ping alive host on deaf port")
|
| 587 |
|
| 588 |
|
| 589 |
class TestListVisibleFiles(unittest.TestCase): |
| 590 |
"""Test case for ListVisibleFiles"""
|
| 591 |
|
| 592 |
def setUp(self): |
| 593 |
self.path = tempfile.mkdtemp()
|
| 594 |
|
| 595 |
def tearDown(self): |
| 596 |
shutil.rmtree(self.path)
|
| 597 |
|
| 598 |
def _test(self, files, expected): |
| 599 |
# Sort a copy
|
| 600 |
expected = expected[:] |
| 601 |
expected.sort() |
| 602 |
|
| 603 |
for name in files: |
| 604 |
f = open(os.path.join(self.path, name), 'w') |
| 605 |
try:
|
| 606 |
f.write("Test\n")
|
| 607 |
finally:
|
| 608 |
f.close() |
| 609 |
|
| 610 |
found = ListVisibleFiles(self.path)
|
| 611 |
found.sort() |
| 612 |
|
| 613 |
self.assertEqual(found, expected)
|
| 614 |
|
| 615 |
def testAllVisible(self): |
| 616 |
files = ["a", "b", "c"] |
| 617 |
expected = files |
| 618 |
self._test(files, expected)
|
| 619 |
|
| 620 |
def testNoneVisible(self): |
| 621 |
files = [".a", ".b", ".c"] |
| 622 |
expected = [] |
| 623 |
self._test(files, expected)
|
| 624 |
|
| 625 |
def testSomeVisible(self): |
| 626 |
files = ["a", "b", ".c"] |
| 627 |
expected = ["a", "b"] |
| 628 |
self._test(files, expected)
|
| 629 |
|
| 630 |
|
| 631 |
class TestNewUUID(unittest.TestCase): |
| 632 |
"""Test case for NewUUID"""
|
| 633 |
|
| 634 |
_re_uuid = re.compile('^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-'
|
| 635 |
'[a-f0-9]{4}-[a-f0-9]{12}$')
|
| 636 |
|
| 637 |
def runTest(self): |
| 638 |
self.failUnless(self._re_uuid.match(utils.NewUUID())) |
| 639 |
|
| 640 |
|
| 641 |
if __name__ == '__main__': |
| 642 |
unittest.main() |