python/samba/tests/loadparm.py

   1 # Unix SMB/CIFS implementation.
   2 # Copyright (C) Andrew Bartlett <abartlet@samba.org>
   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
  18 from samba.tests import TestCaseInTempDir
  19 from samba import param
  20 import os
  21
  22 # the python bindings for LoadParm objects map (by default) to a single global
  23 # object in the underlying C code. E.g. if we create 2 different LoadParm
  24 # objects in python, really they're just the same object underneath.
  25 class LoadParmTest(TestCaseInTempDir):
  26
  27     def test_global_loadparm(self):
  28         # create 2 different Loadparm objects (which are really the same
  29         # object underneath)
  30         lp1 = param.LoadParm()
  31         lp2 = param.LoadParm()
  32
  33         # we can prove this by setting a value on lp1 and assert that the
  34         # change is also reflected on lp2
  35         lp1_realm = "JUST.A.TEST"
  36         self.assertNotEqual(lp2.get('realm'), lp1_realm)
  37         lp1.set('realm', lp1_realm)
  38         self.assertEqual(lp1.get('realm'), lp1_realm)
  39         self.assertEqual(lp2.get('realm'), lp1_realm)
  40
  41     def touch_temp_file(self, filename):
  42         filepath = os.path.join(self.tempdir, filename)
  43         open(filepath, 'a').close()
  44         # delete the file once the test completes
  45         self.addCleanup(os.remove, filepath)
  46         return filepath
  47
  48     def test_non_global_loadparm(self):
  49         # create a empty smb.conf file
  50         smb_conf = self.touch_temp_file("smb.conf")
  51
  52         # we can create a non-global Loadparm that overrides the default
  53         # behaviour and creates a separate underlying object
  54         lp1 = param.LoadParm()
  55         lp2 = param.LoadParm(filename_for_non_global_lp=smb_conf)
  56
  57         # setting a value for the global LP does not affect the non-global LP
  58         lp1_realm = "JUST.A.TEST"
  59         self.assertNotEqual(lp2.get('realm'), lp1_realm)
  60         lp1.set('realm', lp1_realm)
  61         self.assertEqual(lp1.get('realm'), lp1_realm)
  62         self.assertNotEqual(lp2.get('realm'), lp1_realm)
  63
  64         # and vice versa
  65         lp2_realm = "TEST.REALM.LP2"
  66         lp2.set('realm', lp2_realm)
  67         self.assertEqual(lp2.get('realm'), lp2_realm)
  68         self.assertEqual(lp1.get('realm'), lp1_realm)
  69
  70     def test_non_global_loadparm_bad_path(self):
  71         non_existent_file = os.path.join(self.tempdir, 'not-there')
  72
  73         # we can create a non-global Loadparm that overrides the default
  74         # behaviour and creates a separate underlying object
  75         self.assertRaises(ValueError,
  76                           param.LoadParm,
  77                           filename_for_non_global_lp=non_existent_file)
  78
  79         # still shouldn't be there
  80         self.assertRaises(ValueError,
  81                           param.LoadParm,
  82                           non_existent_file)