#!/usr/bin/python
#

# Copyright (C) 2012 Google Inc.
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"""Script for testing ganeti.backend (tests requiring root access)"""

import os
import tempfile
import shutil
import errno

from ganeti import constants
from ganeti import utils
from ganeti import compat
from ganeti import backend

import testutils


class TestCommonRestrictedCmdCheck(testutils.GanetiTestCase):
  def setUp(self):
    self.tmpdir = tempfile.mkdtemp()

  def tearDown(self):
    shutil.rmtree(self.tmpdir)

  def _PrepareTest(self):
    tmpname = utils.PathJoin(self.tmpdir, "foobar")
    os.mkdir(tmpname)
    os.chmod(tmpname, 0700)
    return tmpname

  def testCorrectOwner(self):
    tmpname = self._PrepareTest()

    os.chown(tmpname, 0, 0)
    (status, value) = backend._CommonRestrictedCmdCheck(tmpname, None)
    self.assertTrue(status)
    self.assertTrue(value)

  def testWrongOwner(self):
    tmpname = self._PrepareTest()

    tests = [
      (1, 0),
      (0, 1),
      (100, 50),
      ]

    for (uid, gid) in tests:
      self.assertFalse(uid == os.getuid() and gid == os.getgid())
      os.chown(tmpname, uid, gid)

      (status, errmsg) = backend._CommonRestrictedCmdCheck(tmpname, None)
      self.assertFalse(status)
      self.assertTrue("foobar' is not owned by " in errmsg)


if __name__ == "__main__":
  testutils.GanetiTestProgram()