root / test / ganeti.utils_unittest.py @ 5ca84bdd
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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 ganeti |
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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, _ParseIpOutput |
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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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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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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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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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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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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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class TestShellQuoting(unittest.TestCase): |
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"""Test case for shell quoting functions"""
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def testShellQuote(self): |
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self.assertEqual(ShellQuote('abc'), "abc") |
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self.assertEqual(ShellQuote('ab"c'), "'ab\"c'") |
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self.assertEqual(ShellQuote("a'bc"), "'a'\\''bc'") |
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self.assertEqual(ShellQuote("a b c"), "'a b c'") |
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self.assertEqual(ShellQuote("a b\\ c"), "'a b\\ c'") |
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def testShellQuoteArgs(self): |
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self.assertEqual(ShellQuoteArgs(['a', 'b', 'c']), "a b c") |
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self.assertEqual(ShellQuoteArgs(['a', 'b"', 'c']), "a 'b\"' c") |
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self.assertEqual(ShellQuoteArgs(['a', 'b\'', 'c']), "a 'b'\\\''' c") |
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class TestIpAdressList(unittest.TestCase): |
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"""Test case for local IP addresses"""
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def _test(self, output, required): |
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ips = _ParseIpOutput(output) |
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# Sort the output, so our check below works in all cases
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ips.sort() |
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required.sort() |
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self.assertEqual(required, ips)
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def testSingleIpAddress(self): |
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output = \ |
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("3: lo inet 127.0.0.1/8 brd 127.255.255.255 scope host lo\n"
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"5: eth0 inet 10.0.0.1/24 brd 172.30.15.127 scope global eth0\n")
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self._test(output, ['127.0.0.1', '10.0.0.1']) |
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|
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def testMultipleIpAddresses(self): |
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output = \ |
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("3: lo inet 127.0.0.1/8 brd 127.255.255.255 scope host lo\n"
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"5: eth0 inet 10.0.0.1/24 brd 172.30.15.127 scope global eth0\n"
|
| 466 |
"5: eth0 inet 1.2.3.4/8 brd 1.255.255.255 scope global eth0:test\n")
|
| 467 |
self._test(output, ['127.0.0.1', '10.0.0.1', '1.2.3.4']) |
| 468 |
|
| 469 |
|
| 470 |
if __name__ == '__main__': |
| 471 |
unittest.main() |