python/samba/tests/smbd_base.py

   1 # Unix SMB/CIFS implementation. Common code for smbd python bindings tests
   2 # Copyright (C) Catalyst.Net Ltd 2019
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 #
  17 from samba.tests import TestCaseInTempDir
  18 import os
  19
  20 TEST_UMASK = 0o042
  21
  22 class SmbdBaseTests(TestCaseInTempDir):
  23
  24     def get_umask(self):
  25         # we can only get the umask by setting it to something
  26         curr_umask = os.umask(0)
  27         # restore the old setting
  28         os.umask(curr_umask)
  29         return curr_umask
  30
  31     def setUp(self):
  32         super(SmbdBaseTests, self).setUp()
  33         self.orig_umask = self.get_umask()
  34
  35         # set an arbitrary umask - the underlying smbd code should override
  36         # this, but it allows us to check if umask is left unset
  37         os.umask(TEST_UMASK)
  38
  39     def tearDown(self):
  40         # the current umask should be what we set it to earlier - if it's not,
  41         # it indicates the code has changed it and not restored it
  42         self.assertEqual(self.get_umask(), TEST_UMASK,
  43                          "umask unexpectedly overridden by test")
  44
  45         # restore the original umask value (before we interferred with it)
  46         os.umask(self.orig_umask)
  47
  48         super(SmbdBaseTests, self).tearDown()