Synnefo » snf-ganeti

#!/usr/bin/python

#

# Copyright (C) 2006, 2007 Google Inc.

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301, USA.

"""Script for unittesting the bdev module"""

import os

import unittest

from ganeti import bdev

from ganeti import errors

class TestDRBD8Runner(unittest.TestCase):

  """Testing case for DRBD8"""

  @staticmethod

  def _has_disk(data, dname, mname):

    """Check local disk corectness"""

    retval = (

      "local_dev" in data and

      data["local_dev"] == dname and

      "meta_dev" in data and

      data["meta_dev"] == mname and

      "meta_index" in data and

      data["meta_index"] == 0

      )

    return retval

  @staticmethod

  def _get_contents(name):

    """Returns the contents of a file"""

    prefix = os.environ.get("srcdir", None)

    if prefix:

      name = prefix + "/" + name

    fh = open(name, "r")

    try:

      data = fh.read()

    finally:

      fh.close()

    return data

  @staticmethod

  def _has_net(data, local, remote):

    """Check network connection parameters"""

    retval = (

      "local_addr" in data and

      data["local_addr"] == local and

      "remote_addr" in data and

      data["remote_addr"] == remote

      )

    return retval

  def testParserCreation(self):

    """Test drbdsetup show parser creation"""

    bdev.DRBD8._GetShowParser()

  def testParserBoth(self):

    """Test drbdsetup show parser for disk and network"""

    data = self._get_contents("data/bdev-both.txt")

    result = bdev.DRBD8._GetDevInfo(data)

    self.failUnless(self._has_disk(result, "/dev/xenvg/test.data",

                                   "/dev/xenvg/test.meta"),

                    "Wrong local disk info")

    self.failUnless(self._has_net(result, ("192.168.1.1", 11000),

                                  ("192.168.1.2", 11000)),

                    "Wrong network info")

  def testParserNet(self):

    """Test drbdsetup show parser for disk and network"""

    data = self._get_contents("data/bdev-net.txt")

    result = bdev.DRBD8._GetDevInfo(data)

    self.failUnless(("local_dev" not in result and

                     "meta_dev" not in result and

                     "meta_index" not in result),

                    "Should not find local disk info")

    self.failUnless(self._has_net(result, ("192.168.1.1", 11002),

                                  ("192.168.1.2", 11002)),

                    "Wrong network info")

  def testParserDisk(self):

    """Test drbdsetup show parser for disk and network"""

    data = self._get_contents("data/bdev-disk.txt")

    result = bdev.DRBD8._GetDevInfo(data)

    self.failUnless(self._has_disk(result, "/dev/xenvg/test.data",

                                   "/dev/xenvg/test.meta"),

                    "Wrong local disk info")

    self.failUnless(("local_addr" not in result and

                     "remote_addr" not in result),

                    "Should not find network info")

class TestDRBD8Status(unittest.TestCase):

  """Testing case for DRBD8 /proc status"""

  def setUp(self):

    """Read in txt data"""

    self.proc_data = bdev.DRBD8._GetProcData(filename="data/proc_drbd8.txt")

    self.mass_data = bdev.DRBD8._MassageProcData(self.proc_data)

  def testMinorNotFound(self):

    """Test not-found-minor in /proc"""

    self.failUnless(9 not in self.mass_data)

  def testLineNotMatch(self):

    """Test wrong line passed to DRBD8Status"""

    self.assertRaises(errors.BlockDeviceError, bdev.DRBD8Status, "foo")

  def testMinor0(self):

    """Test connected, primary device"""

    stats = bdev.DRBD8Status(self.mass_data[0])

    self.failUnless(stats.is_connected and stats.is_primary and

                    stats.peer_secondary and stats.is_disk_uptodate)

  def testMinor1(self):

    """Test connected, secondary device"""

    stats = bdev.DRBD8Status(self.mass_data[1])

    self.failUnless(stats.is_connected and stats.is_secondary and

                    stats.peer_primary and stats.is_disk_uptodate)

  def testMinor4(self):

    """Test WFconn device"""

    stats = bdev.DRBD8Status(self.mass_data[4])

    self.failUnless(stats.is_wfconn and stats.is_primary and

                    stats.rrole == 'Unknown' and

                    stats.is_disk_uptodate)

  def testMinor6(self):

    """Test diskless device"""

    stats = bdev.DRBD8Status(self.mass_data[6])

    self.failUnless(stats.is_connected and stats.is_secondary and

                    stats.peer_primary and stats.is_diskless)

  def testMinor8(self):

    """Test standalone device"""

    stats = bdev.DRBD8Status(self.mass_data[8])

    self.failUnless(stats.is_standalone and

                    stats.rrole == 'Unknown' and

                    stats.is_disk_uptodate)

if __name__ == '__main__':

  unittest.main()