Synnefo » snf-ganeti

#!/usr/bin/python

#

# Copyright (C) 2013 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 testing ganeti.bootstrap"""

import shutil

import tempfile

import unittest

from ganeti import bootstrap

from ganeti import constants

from ganeti import errors

from ganeti import pathutils

import testutils

import mock

class TestPrepareFileStorage(unittest.TestCase):

  def setUp(self):

    unittest.TestCase.setUp(self)

    self.tmpdir = tempfile.mkdtemp()

  def tearDown(self):

    shutil.rmtree(self.tmpdir)

  def enableFileStorage(self, enable):

    self.enabled_disk_templates = []

    if enable:

      self.enabled_disk_templates.append(constants.DT_FILE)

    else:

      # anything != DT_FILE would do here

      self.enabled_disk_templates.append(constants.DT_DISKLESS)

  def testFallBackToDefaultPathAcceptedFileStorageEnabled(self):

    expected_file_storage_dir = pathutils.DEFAULT_FILE_STORAGE_DIR

    acceptance_fn = mock.Mock()

    init_fn = mock.Mock(return_value=expected_file_storage_dir)

    self.enableFileStorage(True)

    file_storage_dir = bootstrap._PrepareFileStorage(

        self.enabled_disk_templates, None, acceptance_fn=acceptance_fn,

        init_fn=init_fn)

    self.assertEqual(expected_file_storage_dir, file_storage_dir)

    acceptance_fn.assert_called_with(expected_file_storage_dir)

    init_fn.assert_called_with(expected_file_storage_dir)

  def testPathAcceptedFileStorageEnabled(self):

    acceptance_fn = mock.Mock()

    init_fn = mock.Mock(return_value=self.tmpdir)

    self.enableFileStorage(True)

    file_storage_dir = bootstrap._PrepareFileStorage(

        self.enabled_disk_templates, self.tmpdir, acceptance_fn=acceptance_fn,

        init_fn=init_fn)

    self.assertEqual(self.tmpdir, file_storage_dir)

    acceptance_fn.assert_called_with(self.tmpdir)

    init_fn.assert_called_with(self.tmpdir)

  def testPathAcceptedFileStorageDisabled(self):

    acceptance_fn = mock.Mock()

    init_fn = mock.Mock()

    self.enableFileStorage(False)

    file_storage_dir = bootstrap._PrepareFileStorage(

        self.enabled_disk_templates, self.tmpdir, acceptance_fn=acceptance_fn,

        init_fn=init_fn)

    self.assertEqual(self.tmpdir, file_storage_dir)

    self.assertFalse(init_fn.called)

    self.assertFalse(acceptance_fn.called)

  def testPathNotAccepted(self):

    acceptance_fn = mock.Mock()

    acceptance_fn.side_effect = errors.FileStoragePathError

    init_fn = mock.Mock()

    self.enableFileStorage(True)

    self.assertRaises(errors.OpPrereqError, bootstrap._PrepareFileStorage,

        self.enabled_disk_templates, self.tmpdir, acceptance_fn=acceptance_fn,

        init_fn=init_fn)

    acceptance_fn.assert_called_with(self.tmpdir)

class TestInitCheckEnabledDiskTemplates(unittest.TestCase):

  def testValidTemplates(self):

    enabled_disk_templates = list(constants.DISK_TEMPLATES)

    bootstrap._InitCheckEnabledDiskTemplates(enabled_disk_templates)

  def testInvalidTemplates(self):

    enabled_disk_templates = ["pinkbunny"]

    self.assertRaises(errors.OpPrereqError,

        bootstrap._InitCheckEnabledDiskTemplates, enabled_disk_templates)

  def testEmptyTemplates(self):

    enabled_disk_templates = []

    self.assertRaises(errors.OpPrereqError,

        bootstrap._InitCheckEnabledDiskTemplates, enabled_disk_templates)

if __name__ == "__main__":

  testutils.GanetiTestProgram()