Synnefo » snf-ganeti

#!/usr/bin/python

#

# Copyright (C) 2006, 2007, 2010, 2011 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 utils module"""

import errno

import fcntl

import glob

import os

import os.path

import re

import shutil

import signal

import socket

import stat

import tempfile

import time

import unittest

import warnings

import random

import operator

import testutils

from ganeti import constants

from ganeti import compat

from ganeti import utils

from ganeti import errors

from ganeti.utils import RunCmd, \

     FirstFree, \

     RunParts

class TestParseCpuMask(unittest.TestCase):

  """Test case for the ParseCpuMask function."""

  def testWellFormed(self):

    self.assertEqual(utils.ParseCpuMask(""), [])

    self.assertEqual(utils.ParseCpuMask("1"), [1])

    self.assertEqual(utils.ParseCpuMask("0-2,4,5-5"), [0,1,2,4,5])

  def testInvalidInput(self):

    for data in ["garbage", "0,", "0-1-2", "2-1", "1-a"]:

      self.assertRaises(errors.ParseError, utils.ParseCpuMask, data)

class TestParseMultiCpuMask(unittest.TestCase):

  """Test case for the ParseMultiCpuMask function."""

  def testWellFormed(self):

    self.assertEqual(utils.ParseMultiCpuMask(""), [])

    self.assertEqual(utils.ParseMultiCpuMask("1"), [[1]])

    self.assertEqual(utils.ParseMultiCpuMask("0-2,4,5-5"), [[0, 1, 2, 4, 5]])

    self.assertEqual(utils.ParseMultiCpuMask("all"), [[-1]])

    self.assertEqual(utils.ParseMultiCpuMask("0-2:all:4,6-8"),

      [[0, 1, 2], [-1], [4, 6, 7, 8]])

  def testInvalidInput(self):

    for data in ["garbage", "0,", "0-1-2", "2-1", "1-a", "all-all"]:

      self.assertRaises(errors.ParseError, utils.ParseCpuMask, data)

class TestGetMounts(unittest.TestCase):

  """Test case for GetMounts()."""

  TESTDATA = (

    "rootfs /     rootfs rw 0 0\n"

    "none   /sys  sysfs  rw,nosuid,nodev,noexec,relatime 0 0\n"

    "none   /proc proc   rw,nosuid,nodev,noexec,relatime 0 0\n")

  def setUp(self):

    self.tmpfile = tempfile.NamedTemporaryFile()

    utils.WriteFile(self.tmpfile.name, data=self.TESTDATA)

  def testGetMounts(self):

    self.assertEqual(utils.GetMounts(filename=self.tmpfile.name),

      [

        ("rootfs", "/", "rootfs", "rw"),

        ("none", "/sys", "sysfs", "rw,nosuid,nodev,noexec,relatime"),

        ("none", "/proc", "proc", "rw,nosuid,nodev,noexec,relatime"),

      ])

class TestFirstFree(unittest.TestCase):

  """Test case for the FirstFree function"""

  def test(self):

    """Test FirstFree"""

    self.failUnlessEqual(FirstFree([0, 1, 3]), 2)

    self.failUnlessEqual(FirstFree([]), None)

    self.failUnlessEqual(FirstFree([3, 4, 6]), 0)

    self.failUnlessEqual(FirstFree([3, 4, 6], base=3), 5)

    self.failUnlessRaises(AssertionError, FirstFree, [0, 3, 4, 6], base=3)

class TestTimeFunctions(unittest.TestCase):

  """Test case for time functions"""

  def runTest(self):

    self.assertEqual(utils.SplitTime(1), (1, 0))

    self.assertEqual(utils.SplitTime(1.5), (1, 500000))

    self.assertEqual(utils.SplitTime(1218448917.4809151), (1218448917, 480915))

    self.assertEqual(utils.SplitTime(123.48012), (123, 480120))

    self.assertEqual(utils.SplitTime(123.9996), (123, 999600))

    self.assertEqual(utils.SplitTime(123.9995), (123, 999500))

    self.assertEqual(utils.SplitTime(123.9994), (123, 999400))

    self.assertEqual(utils.SplitTime(123.999999999), (123, 999999))

    self.assertRaises(AssertionError, utils.SplitTime, -1)

    self.assertEqual(utils.MergeTime((1, 0)), 1.0)

    self.assertEqual(utils.MergeTime((1, 500000)), 1.5)

    self.assertEqual(utils.MergeTime((1218448917, 500000)), 1218448917.5)

    self.assertEqual(round(utils.MergeTime((1218448917, 481000)), 3),

                     1218448917.481)

    self.assertEqual(round(utils.MergeTime((1, 801000)), 3), 1.801)

    self.assertRaises(AssertionError, utils.MergeTime, (0, -1))

    self.assertRaises(AssertionError, utils.MergeTime, (0, 1000000))

    self.assertRaises(AssertionError, utils.MergeTime, (0, 9999999))

    self.assertRaises(AssertionError, utils.MergeTime, (-1, 0))

    self.assertRaises(AssertionError, utils.MergeTime, (-9999, 0))

class FieldSetTestCase(unittest.TestCase):

  """Test case for FieldSets"""

  def testSimpleMatch(self):

    f = utils.FieldSet("a", "b", "c", "def")

    self.failUnless(f.Matches("a"))

    self.failIf(f.Matches("d"), "Substring matched")

    self.failIf(f.Matches("defghi"), "Prefix string matched")

    self.failIf(f.NonMatching(["b", "c"]))

    self.failIf(f.NonMatching(["a", "b", "c", "def"]))

    self.failUnless(f.NonMatching(["a", "d"]))

  def testRegexMatch(self):

    f = utils.FieldSet("a", "b([0-9]+)", "c")

    self.failUnless(f.Matches("b1"))

    self.failUnless(f.Matches("b99"))

    self.failIf(f.Matches("b/1"))

    self.failIf(f.NonMatching(["b12", "c"]))

    self.failUnless(f.NonMatching(["a", "1"]))

class TestForceDictType(unittest.TestCase):

  """Test case for ForceDictType"""

  KEY_TYPES = {

    "a": constants.VTYPE_INT,

    "b": constants.VTYPE_BOOL,

    "c": constants.VTYPE_STRING,

    "d": constants.VTYPE_SIZE,

    "e": constants.VTYPE_MAYBE_STRING,

    }

  def _fdt(self, dict, allowed_values=None):

    if allowed_values is None:

      utils.ForceDictType(dict, self.KEY_TYPES)

    else:

      utils.ForceDictType(dict, self.KEY_TYPES, allowed_values=allowed_values)

    return dict

  def testSimpleDict(self):

    self.assertEqual(self._fdt({}), {})

    self.assertEqual(self._fdt({'a': 1}), {'a': 1})

    self.assertEqual(self._fdt({'a': '1'}), {'a': 1})

    self.assertEqual(self._fdt({'a': 1, 'b': 1}), {'a':1, 'b': True})

    self.assertEqual(self._fdt({'b': 1, 'c': 'foo'}), {'b': True, 'c': 'foo'})

    self.assertEqual(self._fdt({'b': 1, 'c': False}), {'b': True, 'c': ''})

    self.assertEqual(self._fdt({'b': 'false'}), {'b': False})

    self.assertEqual(self._fdt({'b': 'False'}), {'b': False})

    self.assertEqual(self._fdt({'b': False}), {'b': False})

    self.assertEqual(self._fdt({'b': 'true'}), {'b': True})

    self.assertEqual(self._fdt({'b': 'True'}), {'b': True})

    self.assertEqual(self._fdt({'d': '4'}), {'d': 4})

    self.assertEqual(self._fdt({'d': '4M'}), {'d': 4})

    self.assertEqual(self._fdt({"e": None, }), {"e": None, })

    self.assertEqual(self._fdt({"e": "Hello World", }), {"e": "Hello World", })

    self.assertEqual(self._fdt({"e": False, }), {"e": '', })

    self.assertEqual(self._fdt({"b": "hello", }, ["hello"]), {"b": "hello"})

  def testErrors(self):

    self.assertRaises(errors.TypeEnforcementError, self._fdt, {'a': 'astring'})

    self.assertRaises(errors.TypeEnforcementError, self._fdt, {"b": "hello"})

    self.assertRaises(errors.TypeEnforcementError, self._fdt, {'c': True})

    self.assertRaises(errors.TypeEnforcementError, self._fdt, {'d': 'astring'})

    self.assertRaises(errors.TypeEnforcementError, self._fdt, {'d': '4 L'})

    self.assertRaises(errors.TypeEnforcementError, self._fdt, {"e": object(), })

    self.assertRaises(errors.TypeEnforcementError, self._fdt, {"e": [], })

    self.assertRaises(errors.TypeEnforcementError, self._fdt, {"x": None, })

    self.assertRaises(errors.TypeEnforcementError, self._fdt, [])

    self.assertRaises(errors.ProgrammerError, utils.ForceDictType,

                      {"b": "hello"}, {"b": "no-such-type"})

class TestValidateServiceName(unittest.TestCase):

  def testValid(self):

    testnames = [

      0, 1, 2, 3, 1024, 65000, 65534, 65535,

      "ganeti",

      "gnt-masterd",

      "HELLO_WORLD_SVC",

      "hello.world.1",

      "0", "80", "1111", "65535",

      ]

    for name in testnames:

      self.assertEqual(utils.ValidateServiceName(name), name)

  def testInvalid(self):

    testnames = [

      -15756, -1, 65536, 133428083,

      "", "Hello World!", "!", "'", "\"", "\t", "\n", "`",

      "-8546", "-1", "65536",

      (129 * "A"),

      ]

    for name in testnames:

      self.assertRaises(errors.OpPrereqError, utils.ValidateServiceName, name)

class TestReadLockedPidFile(unittest.TestCase):

  def setUp(self):

    self.tmpdir = tempfile.mkdtemp()

  def tearDown(self):

    shutil.rmtree(self.tmpdir)

  def testNonExistent(self):

    path = utils.PathJoin(self.tmpdir, "nonexist")

    self.assert_(utils.ReadLockedPidFile(path) is None)

  def testUnlocked(self):

    path = utils.PathJoin(self.tmpdir, "pid")

    utils.WriteFile(path, data="123")

    self.assert_(utils.ReadLockedPidFile(path) is None)

  def testLocked(self):

    path = utils.PathJoin(self.tmpdir, "pid")

    utils.WriteFile(path, data="123")

    fl = utils.FileLock.Open(path)

    try:

      fl.Exclusive(blocking=True)

      self.assertEqual(utils.ReadLockedPidFile(path), 123)

    finally:

      fl.Close()

    self.assert_(utils.ReadLockedPidFile(path) is None)

  def testError(self):

    path = utils.PathJoin(self.tmpdir, "foobar", "pid")

    utils.WriteFile(utils.PathJoin(self.tmpdir, "foobar"), data="")

    # open(2) should return ENOTDIR

    self.assertRaises(EnvironmentError, utils.ReadLockedPidFile, path)

class TestFindMatch(unittest.TestCase):

  def test(self):

    data = {

      "aaaa": "Four A",

      "bb": {"Two B": True},

      re.compile(r"^x(foo|bar|bazX)([0-9]+)$"): (1, 2, 3),

      }

    self.assertEqual(utils.FindMatch(data, "aaaa"), ("Four A", []))

    self.assertEqual(utils.FindMatch(data, "bb"), ({"Two B": True}, []))

    for i in ["foo", "bar", "bazX"]:

      for j in range(1, 100, 7):

        self.assertEqual(utils.FindMatch(data, "x%s%s" % (i, j)),

                         ((1, 2, 3), [i, str(j)]))

  def testNoMatch(self):

    self.assert_(utils.FindMatch({}, "") is None)

    self.assert_(utils.FindMatch({}, "foo") is None)

    self.assert_(utils.FindMatch({}, 1234) is None)

    data = {

      "X": "Hello World",

      re.compile("^(something)$"): "Hello World",

      }

    self.assert_(utils.FindMatch(data, "") is None)

    self.assert_(utils.FindMatch(data, "Hello World") is None)

class TestTryConvert(unittest.TestCase):

  def test(self):

    for src, fn, result in [

      ("1", int, 1),

      ("a", int, "a"),

      ("", bool, False),

      ("a", bool, True),

      ]:

      self.assertEqual(utils.TryConvert(fn, src), result)

class TestVerifyDictOptions(unittest.TestCase):

  def setUp(self):

    self.defaults = {

      "first_key": "foobar",

      "foobar": {

        "key1": "value2",

        "key2": "value1",

        },

      "another_key": "another_value",

      }

  def test(self):

    some_keys = {

      "first_key": "blubb",

      "foobar": {

        "key2": "foo",

        },

      }

    utils.VerifyDictOptions(some_keys, self.defaults)

  def testInvalid(self):

    some_keys = {

      "invalid_key": "blubb",

      "foobar": {

        "key2": "foo",

        },

      }

    self.assertRaises(errors.OpPrereqError, utils.VerifyDictOptions,

                      some_keys, self.defaults)

  def testNestedInvalid(self):

    some_keys = {

      "foobar": {

        "key2": "foo",

        "key3": "blibb"

        },

      }

    self.assertRaises(errors.OpPrereqError, utils.VerifyDictOptions,

                      some_keys, self.defaults)

  def testMultiInvalid(self):

    some_keys = {

        "foobar": {

          "key1": "value3",

          "key6": "Right here",

        },

        "invalid_with_sub": {

          "sub1": "value3",

        },

      }

    self.assertRaises(errors.OpPrereqError, utils.VerifyDictOptions,

                      some_keys, self.defaults)

if __name__ == "__main__":

  testutils.GanetiTestProgram()