root / test / py / ganeti.utils.process_unittest.py @ 00ef625c
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#!/usr/bin/python
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#
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# Copyright (C) 2011 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 testing ganeti.utils.process"""
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import unittest |
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import tempfile |
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import shutil |
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import os |
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import stat |
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import time |
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import select |
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import signal |
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from ganeti import constants |
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from ganeti import utils |
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from ganeti import errors |
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import testutils |
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class TestIsProcessAlive(unittest.TestCase): |
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"""Testing case for IsProcessAlive"""
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def testExists(self): |
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mypid = os.getpid() |
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self.assert_(utils.IsProcessAlive(mypid), "can't find myself running") |
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def testNotExisting(self): |
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pid_non_existing = os.fork() |
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if pid_non_existing == 0: |
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os._exit(0)
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elif pid_non_existing < 0: |
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raise SystemError("can't fork") |
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os.waitpid(pid_non_existing, 0)
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self.assertFalse(utils.IsProcessAlive(pid_non_existing),
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"nonexisting process detected")
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class TestGetProcStatusPath(unittest.TestCase): |
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def test(self): |
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self.assert_("/1234/" in utils.process._GetProcStatusPath(1234)) |
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self.assertNotEqual(utils.process._GetProcStatusPath(1), |
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utils.process._GetProcStatusPath(2))
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class TestIsProcessHandlingSignal(unittest.TestCase): |
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def setUp(self): |
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self.tmpdir = tempfile.mkdtemp()
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def tearDown(self): |
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shutil.rmtree(self.tmpdir)
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def testParseSigsetT(self): |
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parse_sigset_t_fn = utils.process._ParseSigsetT |
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self.assertEqual(len(parse_sigset_t_fn("0")), 0) |
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self.assertEqual(parse_sigset_t_fn("1"), set([1])) |
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self.assertEqual(parse_sigset_t_fn("1000a"), set([2, 4, 17])) |
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self.assertEqual(parse_sigset_t_fn("810002"), set([2, 17, 24, ])) |
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self.assertEqual(parse_sigset_t_fn("0000000180000202"), |
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set([2, 10, 32, 33])) |
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self.assertEqual(parse_sigset_t_fn("0000000180000002"), |
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set([2, 32, 33])) |
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self.assertEqual(parse_sigset_t_fn("0000000188000002"), |
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set([2, 28, 32, 33])) |
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self.assertEqual(parse_sigset_t_fn("000000004b813efb"), |
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set([1, 2, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 17, |
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24, 25, 26, 28, 31])) |
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self.assertEqual(parse_sigset_t_fn("ffffff"), set(range(1, 25))) |
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def testGetProcStatusField(self): |
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for field in ["SigCgt", "Name", "FDSize"]: |
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for value in ["", "0", "cat", " 1234 KB"]: |
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pstatus = "\n".join([
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"VmPeak: 999 kB",
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"%s: %s" % (field, value),
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"TracerPid: 0",
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]) |
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result = utils.process._GetProcStatusField(pstatus, field) |
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self.assertEqual(result, value.strip())
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def test(self): |
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sp = utils.PathJoin(self.tmpdir, "status") |
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utils.WriteFile(sp, data="\n".join([
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"Name: bash",
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"State: S (sleeping)",
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"SleepAVG: 98%",
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"Pid: 22250",
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"PPid: 10858",
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"TracerPid: 0",
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"SigBlk: 0000000000010000",
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"SigIgn: 0000000000384004",
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"SigCgt: 000000004b813efb",
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"CapEff: 0000000000000000",
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])) |
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self.assert_(utils.IsProcessHandlingSignal(1234, 10, status_path=sp)) |
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def testNoSigCgt(self): |
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sp = utils.PathJoin(self.tmpdir, "status") |
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utils.WriteFile(sp, data="\n".join([
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"Name: bash",
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])) |
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self.assertRaises(RuntimeError, utils.IsProcessHandlingSignal, |
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1234, 10, status_path=sp) |
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def testNoSuchFile(self): |
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sp = utils.PathJoin(self.tmpdir, "notexist") |
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self.assertFalse(utils.IsProcessHandlingSignal(1234, 10, status_path=sp)) |
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@staticmethod
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def _TestRealProcess(): |
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signal.signal(signal.SIGUSR1, signal.SIG_DFL) |
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if utils.IsProcessHandlingSignal(os.getpid(), signal.SIGUSR1):
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raise Exception("SIGUSR1 is handled when it should not be") |
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signal.signal(signal.SIGUSR1, lambda signum, frame: None) |
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if not utils.IsProcessHandlingSignal(os.getpid(), signal.SIGUSR1): |
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raise Exception("SIGUSR1 is not handled when it should be") |
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signal.signal(signal.SIGUSR1, signal.SIG_IGN) |
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if utils.IsProcessHandlingSignal(os.getpid(), signal.SIGUSR1):
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raise Exception("SIGUSR1 is not handled when it should be") |
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signal.signal(signal.SIGUSR1, signal.SIG_DFL) |
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if utils.IsProcessHandlingSignal(os.getpid(), signal.SIGUSR1):
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raise Exception("SIGUSR1 is handled when it should not be") |
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return True |
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def testRealProcess(self): |
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self.assert_(utils.RunInSeparateProcess(self._TestRealProcess)) |
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class _PostforkProcessReadyHelper: |
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"""A helper to use with C{postfork_fn} in RunCmd.
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It makes sure a process has reached a certain state by reading from a fifo.
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@ivar write_fd: The fd number to write to
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"""
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def __init__(self, timeout): |
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"""Initialize the helper.
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@param fifo_dir: The dir where we can create the fifo
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@param timeout: The time in seconds to wait before giving up
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"""
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self.timeout = timeout
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(self.read_fd, self.write_fd) = os.pipe() |
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def Ready(self, pid): |
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"""Waits until the process is ready.
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@param pid: The pid of the process
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"""
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(read_ready, _, _) = select.select([self.read_fd], [], [], self.timeout) |
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if not read_ready: |
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# We hit the timeout
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raise AssertionError("Timeout %d reached while waiting for process %d" |
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" to become ready" % (self.timeout, pid)) |
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def Cleanup(self): |
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"""Cleans up the helper.
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"""
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os.close(self.read_fd)
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os.close(self.write_fd)
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class TestRunCmd(testutils.GanetiTestCase): |
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"""Testing case for the RunCmd function"""
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def setUp(self): |
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testutils.GanetiTestCase.setUp(self)
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self.magic = time.ctime() + " ganeti test" |
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self.fname = self._CreateTempFile() |
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self.fifo_tmpdir = tempfile.mkdtemp()
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self.fifo_file = os.path.join(self.fifo_tmpdir, "ganeti_test_fifo") |
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os.mkfifo(self.fifo_file)
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# If the process is not ready after 20 seconds we have bigger issues
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self.proc_ready_helper = _PostforkProcessReadyHelper(20) |
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def tearDown(self): |
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self.proc_ready_helper.Cleanup()
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shutil.rmtree(self.fifo_tmpdir)
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testutils.GanetiTestCase.tearDown(self)
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def testOk(self): |
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"""Test successful exit code"""
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result = utils.RunCmd("/bin/sh -c 'exit 0'")
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self.assertEqual(result.exit_code, 0) |
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self.assertEqual(result.output, "") |
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def testFail(self): |
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"""Test fail exit code"""
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result = utils.RunCmd("/bin/sh -c 'exit 1'")
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self.assertEqual(result.exit_code, 1) |
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self.assertEqual(result.output, "") |
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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 = utils.RunCmd("/bin/sh -c '%s'" % cmd)
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self.assertEqual(result.stdout, self.magic) |
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result = utils.RunCmd("/bin/sh -c '%s'" % cmd, output=self.fname) |
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self.assertEqual(result.output, "") |
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self.assertFileContent(self.fname, 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 = utils.RunCmd("/bin/sh -c '%s' 1>&2" % cmd)
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self.assertEqual(result.stderr, self.magic) |
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result = utils.RunCmd("/bin/sh -c '%s' 1>&2" % cmd, output=self.fname) |
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self.assertEqual(result.output, "") |
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self.assertFileContent(self.fname, 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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expected = "A" + self.magic + "B" + self.magic |
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result = utils.RunCmd("/bin/sh -c '%s'" % cmd)
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self.assertEqual(result.output, expected)
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result = utils.RunCmd("/bin/sh -c '%s'" % cmd, output=self.fname) |
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self.assertEqual(result.output, "") |
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self.assertFileContent(self.fname, expected) |
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def testSignal(self): |
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"""Test signal"""
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result = utils.RunCmd(["python", "-c", |
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"import os; os.kill(os.getpid(), 15)"])
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self.assertEqual(result.signal, 15) |
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self.assertEqual(result.output, "") |
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def testTimeoutClean(self): |
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cmd = ("trap 'exit 0' TERM; echo >&%d; read < %s" %
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(self.proc_ready_helper.write_fd, self.fifo_file)) |
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result = utils.RunCmd(["/bin/sh", "-c", cmd], timeout=0.2, |
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noclose_fds=[self.proc_ready_helper.write_fd],
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postfork_fn=self.proc_ready_helper.Ready)
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self.assertEqual(result.exit_code, 0) |
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def testTimeoutKill(self): |
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cmd = ["/bin/sh", "-c", "trap '' TERM; echo >&%d; read < %s" % |
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(self.proc_ready_helper.write_fd, self.fifo_file)] |
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timeout = 0.2
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(out, err, status, ta) = \ |
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utils.process._RunCmdPipe(cmd, {}, False, "/", False,
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timeout, [self.proc_ready_helper.write_fd],
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None,
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_linger_timeout=0.2,
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postfork_fn=self.proc_ready_helper.Ready)
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self.assert_(status < 0) |
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self.assertEqual(-status, signal.SIGKILL)
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def testTimeoutOutputAfterTerm(self): |
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cmd = ("trap 'echo sigtermed; exit 1' TERM; echo >&%d; read < %s" %
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(self.proc_ready_helper.write_fd, self.fifo_file)) |
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result = utils.RunCmd(["/bin/sh", "-c", cmd], timeout=0.2, |
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noclose_fds=[self.proc_ready_helper.write_fd],
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postfork_fn=self.proc_ready_helper.Ready)
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self.assert_(result.failed)
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self.assertEqual(result.stdout, "sigtermed\n") |
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def testListRun(self): |
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"""Test list runs"""
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result = utils.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 = utils.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 = utils.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 testFileEmptyOutput(self): |
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"""Test file output"""
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result = utils.RunCmd(["true"], output=self.fname) |
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self.assertEqual(result.signal, None) |
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self.assertEqual(result.exit_code, 0) |
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self.assertFileContent(self.fname, "") |
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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 = utils.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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def testDefaultCwd(self): |
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"""Test default working directory"""
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self.failUnlessEqual(utils.RunCmd(["pwd"]).stdout.strip(), "/") |
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def testCwd(self): |
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"""Test default working directory"""
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self.failUnlessEqual(utils.RunCmd(["pwd"], cwd="/").stdout.strip(), "/") |
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self.failUnlessEqual(utils.RunCmd(["pwd"], cwd="/tmp").stdout.strip(), |
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"/tmp")
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cwd = os.getcwd() |
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self.failUnlessEqual(utils.RunCmd(["pwd"], cwd=cwd).stdout.strip(), cwd) |
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def testResetEnv(self): |
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"""Test environment reset functionality"""
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self.failUnlessEqual(utils.RunCmd(["env"], reset_env=True).stdout.strip(), |
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"")
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self.failUnlessEqual(utils.RunCmd(["env"], reset_env=True, |
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env={"FOO": "bar",}).stdout.strip(),
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"FOO=bar")
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def testNoFork(self): |
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"""Test that nofork raise an error"""
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self.assertFalse(utils.process._no_fork)
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utils.DisableFork() |
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try:
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self.assertTrue(utils.process._no_fork)
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self.assertRaises(errors.ProgrammerError, utils.RunCmd, ["true"]) |
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finally:
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utils.process._no_fork = False
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self.assertFalse(utils.process._no_fork)
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def testWrongParams(self): |
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"""Test wrong parameters"""
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self.assertRaises(errors.ProgrammerError, utils.RunCmd, ["true"], |
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output="/dev/null", interactive=True) |
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def testNocloseFds(self): |
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"""Test selective fd retention (noclose_fds)"""
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temp = open(self.fname, "r+") |
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try:
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temp.write("test")
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temp.seek(0)
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cmd = "read -u %d; echo $REPLY" % temp.fileno()
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result = utils.RunCmd(["/bin/bash", "-c", cmd]) |
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self.assertEqual(result.stdout.strip(), "") |
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temp.seek(0)
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result = utils.RunCmd(["/bin/bash", "-c", cmd], |
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noclose_fds=[temp.fileno()]) |
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self.assertEqual(result.stdout.strip(), "test") |
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finally:
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temp.close() |
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def testNoInputRead(self): |
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testfile = testutils.TestDataFilename("cert1.pem")
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result = utils.RunCmd(["cat"], timeout=10.0) |
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self.assertFalse(result.failed)
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self.assertEqual(result.stderr, "") |
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self.assertEqual(result.stdout, "") |
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def testInputFileHandle(self): |
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testfile = testutils.TestDataFilename("cert1.pem")
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result = utils.RunCmd(["cat"], input_fd=open(testfile, "r")) |
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self.assertFalse(result.failed)
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self.assertEqual(result.stdout, utils.ReadFile(testfile))
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self.assertEqual(result.stderr, "") |
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def testInputNumericFileDescriptor(self): |
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testfile = testutils.TestDataFilename("cert2.pem")
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fh = open(testfile, "r") |
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try:
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result = utils.RunCmd(["cat"], input_fd=fh.fileno())
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finally:
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fh.close() |
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self.assertFalse(result.failed)
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self.assertEqual(result.stdout, utils.ReadFile(testfile))
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self.assertEqual(result.stderr, "") |
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def testInputWithCloseFds(self): |
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testfile = testutils.TestDataFilename("cert1.pem")
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temp = open(self.fname, "r+") |
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try:
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temp.write("test283523367")
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temp.seek(0)
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result = utils.RunCmd(["/bin/bash", "-c", |
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("cat && read -u %s; echo $REPLY" %
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temp.fileno())], |
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input_fd=open(testfile, "r"), |
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noclose_fds=[temp.fileno()]) |
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self.assertFalse(result.failed)
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self.assertEqual(result.stdout.strip(),
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utils.ReadFile(testfile) + "test283523367")
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self.assertEqual(result.stderr, "") |
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finally:
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temp.close() |
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def testOutputAndInteractive(self): |
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self.assertRaises(errors.ProgrammerError, utils.RunCmd,
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[], output=self.fname, interactive=True) |
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def testOutputAndInput(self): |
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self.assertRaises(errors.ProgrammerError, utils.RunCmd,
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[], output=self.fname, input_fd=open(self.fname)) |
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class TestRunParts(testutils.GanetiTestCase): |
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"""Testing case for the RunParts function"""
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def setUp(self): |
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self.rundir = tempfile.mkdtemp(prefix="ganeti-test", suffix=".tmp") |
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def tearDown(self): |
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shutil.rmtree(self.rundir)
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def testEmpty(self): |
| 449 |
"""Test on an empty dir"""
|
| 450 |
self.failUnlessEqual(utils.RunParts(self.rundir, reset_env=True), []) |
| 451 |
|
| 452 |
def testSkipWrongName(self): |
| 453 |
"""Test that wrong files are skipped"""
|
| 454 |
fname = os.path.join(self.rundir, "00test.dot") |
| 455 |
utils.WriteFile(fname, data="")
|
| 456 |
os.chmod(fname, stat.S_IREAD | stat.S_IEXEC) |
| 457 |
relname = os.path.basename(fname) |
| 458 |
self.failUnlessEqual(utils.RunParts(self.rundir, reset_env=True), |
| 459 |
[(relname, constants.RUNPARTS_SKIP, None)])
|
| 460 |
|
| 461 |
def testSkipNonExec(self): |
| 462 |
"""Test that non executable files are skipped"""
|
| 463 |
fname = os.path.join(self.rundir, "00test") |
| 464 |
utils.WriteFile(fname, data="")
|
| 465 |
relname = os.path.basename(fname) |
| 466 |
self.failUnlessEqual(utils.RunParts(self.rundir, reset_env=True), |
| 467 |
[(relname, constants.RUNPARTS_SKIP, None)])
|
| 468 |
|
| 469 |
def testError(self): |
| 470 |
"""Test error on a broken executable"""
|
| 471 |
fname = os.path.join(self.rundir, "00test") |
| 472 |
utils.WriteFile(fname, data="")
|
| 473 |
os.chmod(fname, stat.S_IREAD | stat.S_IEXEC) |
| 474 |
(relname, status, error) = utils.RunParts(self.rundir, reset_env=True)[0] |
| 475 |
self.failUnlessEqual(relname, os.path.basename(fname))
|
| 476 |
self.failUnlessEqual(status, constants.RUNPARTS_ERR)
|
| 477 |
self.failUnless(error)
|
| 478 |
|
| 479 |
def testSorted(self): |
| 480 |
"""Test executions are sorted"""
|
| 481 |
files = [] |
| 482 |
files.append(os.path.join(self.rundir, "64test")) |
| 483 |
files.append(os.path.join(self.rundir, "00test")) |
| 484 |
files.append(os.path.join(self.rundir, "42test")) |
| 485 |
|
| 486 |
for fname in files: |
| 487 |
utils.WriteFile(fname, data="")
|
| 488 |
|
| 489 |
results = utils.RunParts(self.rundir, reset_env=True) |
| 490 |
|
| 491 |
for fname in sorted(files): |
| 492 |
self.failUnlessEqual(os.path.basename(fname), results.pop(0)[0]) |
| 493 |
|
| 494 |
def testOk(self): |
| 495 |
"""Test correct execution"""
|
| 496 |
fname = os.path.join(self.rundir, "00test") |
| 497 |
utils.WriteFile(fname, data="#!/bin/sh\n\necho -n ciao")
|
| 498 |
os.chmod(fname, stat.S_IREAD | stat.S_IEXEC) |
| 499 |
(relname, status, runresult) = \ |
| 500 |
utils.RunParts(self.rundir, reset_env=True)[0] |
| 501 |
self.failUnlessEqual(relname, os.path.basename(fname))
|
| 502 |
self.failUnlessEqual(status, constants.RUNPARTS_RUN)
|
| 503 |
self.failUnlessEqual(runresult.stdout, "ciao") |
| 504 |
|
| 505 |
def testRunFail(self): |
| 506 |
"""Test correct execution, with run failure"""
|
| 507 |
fname = os.path.join(self.rundir, "00test") |
| 508 |
utils.WriteFile(fname, data="#!/bin/sh\n\nexit 1")
|
| 509 |
os.chmod(fname, stat.S_IREAD | stat.S_IEXEC) |
| 510 |
(relname, status, runresult) = \ |
| 511 |
utils.RunParts(self.rundir, reset_env=True)[0] |
| 512 |
self.failUnlessEqual(relname, os.path.basename(fname))
|
| 513 |
self.failUnlessEqual(status, constants.RUNPARTS_RUN)
|
| 514 |
self.failUnlessEqual(runresult.exit_code, 1) |
| 515 |
self.failUnless(runresult.failed)
|
| 516 |
|
| 517 |
def testRunMix(self): |
| 518 |
files = [] |
| 519 |
files.append(os.path.join(self.rundir, "00test")) |
| 520 |
files.append(os.path.join(self.rundir, "42test")) |
| 521 |
files.append(os.path.join(self.rundir, "64test")) |
| 522 |
files.append(os.path.join(self.rundir, "99test")) |
| 523 |
|
| 524 |
files.sort() |
| 525 |
|
| 526 |
# 1st has errors in execution
|
| 527 |
utils.WriteFile(files[0], data="#!/bin/sh\n\nexit 1") |
| 528 |
os.chmod(files[0], stat.S_IREAD | stat.S_IEXEC)
|
| 529 |
|
| 530 |
# 2nd is skipped
|
| 531 |
utils.WriteFile(files[1], data="") |
| 532 |
|
| 533 |
# 3rd cannot execute properly
|
| 534 |
utils.WriteFile(files[2], data="") |
| 535 |
os.chmod(files[2], stat.S_IREAD | stat.S_IEXEC)
|
| 536 |
|
| 537 |
# 4th execs
|
| 538 |
utils.WriteFile(files[3], data="#!/bin/sh\n\necho -n ciao") |
| 539 |
os.chmod(files[3], stat.S_IREAD | stat.S_IEXEC)
|
| 540 |
|
| 541 |
results = utils.RunParts(self.rundir, reset_env=True) |
| 542 |
|
| 543 |
(relname, status, runresult) = results[0]
|
| 544 |
self.failUnlessEqual(relname, os.path.basename(files[0])) |
| 545 |
self.failUnlessEqual(status, constants.RUNPARTS_RUN)
|
| 546 |
self.failUnlessEqual(runresult.exit_code, 1) |
| 547 |
self.failUnless(runresult.failed)
|
| 548 |
|
| 549 |
(relname, status, runresult) = results[1]
|
| 550 |
self.failUnlessEqual(relname, os.path.basename(files[1])) |
| 551 |
self.failUnlessEqual(status, constants.RUNPARTS_SKIP)
|
| 552 |
self.failUnlessEqual(runresult, None) |
| 553 |
|
| 554 |
(relname, status, runresult) = results[2]
|
| 555 |
self.failUnlessEqual(relname, os.path.basename(files[2])) |
| 556 |
self.failUnlessEqual(status, constants.RUNPARTS_ERR)
|
| 557 |
self.failUnless(runresult)
|
| 558 |
|
| 559 |
(relname, status, runresult) = results[3]
|
| 560 |
self.failUnlessEqual(relname, os.path.basename(files[3])) |
| 561 |
self.failUnlessEqual(status, constants.RUNPARTS_RUN)
|
| 562 |
self.failUnlessEqual(runresult.output, "ciao") |
| 563 |
self.failUnlessEqual(runresult.exit_code, 0) |
| 564 |
self.failUnless(not runresult.failed) |
| 565 |
|
| 566 |
def testMissingDirectory(self): |
| 567 |
nosuchdir = utils.PathJoin(self.rundir, "no/such/directory") |
| 568 |
self.assertEqual(utils.RunParts(nosuchdir), [])
|
| 569 |
|
| 570 |
|
| 571 |
class TestStartDaemon(testutils.GanetiTestCase): |
| 572 |
def setUp(self): |
| 573 |
self.tmpdir = tempfile.mkdtemp(prefix="ganeti-test") |
| 574 |
self.tmpfile = os.path.join(self.tmpdir, "test") |
| 575 |
|
| 576 |
def tearDown(self): |
| 577 |
shutil.rmtree(self.tmpdir)
|
| 578 |
|
| 579 |
def testShell(self): |
| 580 |
utils.StartDaemon("echo Hello World > %s" % self.tmpfile) |
| 581 |
self._wait(self.tmpfile, 60.0, "Hello World") |
| 582 |
|
| 583 |
def testShellOutput(self): |
| 584 |
utils.StartDaemon("echo Hello World", output=self.tmpfile) |
| 585 |
self._wait(self.tmpfile, 60.0, "Hello World") |
| 586 |
|
| 587 |
def testNoShellNoOutput(self): |
| 588 |
utils.StartDaemon(["pwd"])
|
| 589 |
|
| 590 |
def testNoShellNoOutputTouch(self): |
| 591 |
testfile = os.path.join(self.tmpdir, "check") |
| 592 |
self.failIf(os.path.exists(testfile))
|
| 593 |
utils.StartDaemon(["touch", testfile])
|
| 594 |
self._wait(testfile, 60.0, "") |
| 595 |
|
| 596 |
def testNoShellOutput(self): |
| 597 |
utils.StartDaemon(["pwd"], output=self.tmpfile) |
| 598 |
self._wait(self.tmpfile, 60.0, "/") |
| 599 |
|
| 600 |
def testNoShellOutputCwd(self): |
| 601 |
utils.StartDaemon(["pwd"], output=self.tmpfile, cwd=os.getcwd()) |
| 602 |
self._wait(self.tmpfile, 60.0, os.getcwd()) |
| 603 |
|
| 604 |
def testShellEnv(self): |
| 605 |
utils.StartDaemon("echo \"$GNT_TEST_VAR\"", output=self.tmpfile, |
| 606 |
env={ "GNT_TEST_VAR": "Hello World", })
|
| 607 |
self._wait(self.tmpfile, 60.0, "Hello World") |
| 608 |
|
| 609 |
def testNoShellEnv(self): |
| 610 |
utils.StartDaemon(["printenv", "GNT_TEST_VAR"], output=self.tmpfile, |
| 611 |
env={ "GNT_TEST_VAR": "Hello World", })
|
| 612 |
self._wait(self.tmpfile, 60.0, "Hello World") |
| 613 |
|
| 614 |
def testOutputFd(self): |
| 615 |
fd = os.open(self.tmpfile, os.O_WRONLY | os.O_CREAT)
|
| 616 |
try:
|
| 617 |
utils.StartDaemon(["pwd"], output_fd=fd, cwd=os.getcwd())
|
| 618 |
finally:
|
| 619 |
os.close(fd) |
| 620 |
self._wait(self.tmpfile, 60.0, os.getcwd()) |
| 621 |
|
| 622 |
def testPid(self): |
| 623 |
pid = utils.StartDaemon("echo $$ > %s" % self.tmpfile) |
| 624 |
self._wait(self.tmpfile, 60.0, str(pid)) |
| 625 |
|
| 626 |
def testPidFile(self): |
| 627 |
pidfile = os.path.join(self.tmpdir, "pid") |
| 628 |
checkfile = os.path.join(self.tmpdir, "abort") |
| 629 |
|
| 630 |
pid = utils.StartDaemon("while sleep 5; do :; done", pidfile=pidfile,
|
| 631 |
output=self.tmpfile)
|
| 632 |
try:
|
| 633 |
fd = os.open(pidfile, os.O_RDONLY) |
| 634 |
try:
|
| 635 |
# Check file is locked
|
| 636 |
self.assertRaises(errors.LockError, utils.LockFile, fd)
|
| 637 |
|
| 638 |
pidtext = os.read(fd, 100)
|
| 639 |
finally:
|
| 640 |
os.close(fd) |
| 641 |
|
| 642 |
self.assertEqual(int(pidtext.strip()), pid) |
| 643 |
|
| 644 |
self.assert_(utils.IsProcessAlive(pid))
|
| 645 |
finally:
|
| 646 |
# No matter what happens, kill daemon
|
| 647 |
utils.KillProcess(pid, timeout=5.0, waitpid=False) |
| 648 |
self.failIf(utils.IsProcessAlive(pid))
|
| 649 |
|
| 650 |
self.assertEqual(utils.ReadFile(self.tmpfile), "") |
| 651 |
|
| 652 |
def _wait(self, path, timeout, expected): |
| 653 |
# Due to the asynchronous nature of daemon processes, polling is necessary.
|
| 654 |
# A timeout makes sure the test doesn't hang forever.
|
| 655 |
def _CheckFile(): |
| 656 |
if not (os.path.isfile(path) and |
| 657 |
utils.ReadFile(path).strip() == expected): |
| 658 |
raise utils.RetryAgain()
|
| 659 |
|
| 660 |
try:
|
| 661 |
utils.Retry(_CheckFile, (0.01, 1.5, 1.0), timeout) |
| 662 |
except utils.RetryTimeout:
|
| 663 |
self.fail("Apparently the daemon didn't run in %s seconds and/or" |
| 664 |
" didn't write the correct output" % timeout)
|
| 665 |
|
| 666 |
def testError(self): |
| 667 |
self.assertRaises(errors.OpExecError, utils.StartDaemon,
|
| 668 |
["./does-NOT-EXIST/here/0123456789"])
|
| 669 |
self.assertRaises(errors.OpExecError, utils.StartDaemon,
|
| 670 |
["./does-NOT-EXIST/here/0123456789"],
|
| 671 |
output=os.path.join(self.tmpdir, "DIR/NOT/EXIST")) |
| 672 |
self.assertRaises(errors.OpExecError, utils.StartDaemon,
|
| 673 |
["./does-NOT-EXIST/here/0123456789"],
|
| 674 |
cwd=os.path.join(self.tmpdir, "DIR/NOT/EXIST")) |
| 675 |
self.assertRaises(errors.OpExecError, utils.StartDaemon,
|
| 676 |
["./does-NOT-EXIST/here/0123456789"],
|
| 677 |
output=os.path.join(self.tmpdir, "DIR/NOT/EXIST")) |
| 678 |
|
| 679 |
fd = os.open(self.tmpfile, os.O_WRONLY | os.O_CREAT)
|
| 680 |
try:
|
| 681 |
self.assertRaises(errors.ProgrammerError, utils.StartDaemon,
|
| 682 |
["./does-NOT-EXIST/here/0123456789"],
|
| 683 |
output=self.tmpfile, output_fd=fd)
|
| 684 |
finally:
|
| 685 |
os.close(fd) |
| 686 |
|
| 687 |
|
| 688 |
class RunInSeparateProcess(unittest.TestCase): |
| 689 |
def test(self): |
| 690 |
for exp in [True, False]: |
| 691 |
def _child(): |
| 692 |
return exp
|
| 693 |
|
| 694 |
self.assertEqual(exp, utils.RunInSeparateProcess(_child))
|
| 695 |
|
| 696 |
def testArgs(self): |
| 697 |
for arg in [0, 1, 999, "Hello World", (1, 2, 3)]: |
| 698 |
def _child(carg1, carg2): |
| 699 |
return carg1 == "Foo" and carg2 == arg |
| 700 |
|
| 701 |
self.assert_(utils.RunInSeparateProcess(_child, "Foo", arg)) |
| 702 |
|
| 703 |
def testPid(self): |
| 704 |
parent_pid = os.getpid() |
| 705 |
|
| 706 |
def _check(): |
| 707 |
return os.getpid() == parent_pid
|
| 708 |
|
| 709 |
self.failIf(utils.RunInSeparateProcess(_check))
|
| 710 |
|
| 711 |
def testSignal(self): |
| 712 |
def _kill(): |
| 713 |
os.kill(os.getpid(), signal.SIGTERM) |
| 714 |
|
| 715 |
self.assertRaises(errors.GenericError,
|
| 716 |
utils.RunInSeparateProcess, _kill) |
| 717 |
|
| 718 |
def testException(self): |
| 719 |
def _exc(): |
| 720 |
raise errors.GenericError("This is a test") |
| 721 |
|
| 722 |
self.assertRaises(errors.GenericError,
|
| 723 |
utils.RunInSeparateProcess, _exc) |
| 724 |
|
| 725 |
|
| 726 |
if __name__ == "__main__": |
| 727 |
testutils.GanetiTestProgram() |