--- /dev/null
+# Unix SMB/CIFS implementation.
+# Copyright (C) Andrew Bartlett <abartlet@samba.org>
+#
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+#
+
+from samba.tests import TestCaseInTempDir
+from samba import param
+import os
+
+# the python bindings for LoadParm objects map (by default) to a single global
+# object in the underlying C code. E.g. if we create 2 different LoadParm
+# objects in python, really they're just the same object underneath.
+class LoadParmTest(TestCaseInTempDir):
+
+ def test_global_loadparm(self):
+ # create 2 different Loadparm objects (which are really the same
+ # object underneath)
+ lp1 = param.LoadParm()
+ lp2 = param.LoadParm()
+
+ # we can prove this by setting a value on lp1 and assert that the
+ # change is also reflected on lp2
+ lp1_realm = "JUST.A.TEST"
+ self.assertNotEqual(lp2.get('realm'), lp1_realm)
+ lp1.set('realm', lp1_realm)
+ self.assertEqual(lp1.get('realm'), lp1_realm)
+ self.assertEqual(lp2.get('realm'), lp1_realm)
+
+ def touch_temp_file(self, filename):
+ filepath = os.path.join(self.tempdir, filename)
+ open(filepath, 'a').close()
+ # delete the file once the test completes
+ self.addCleanup(os.remove, filepath)
+ return filepath
+
+ def test_non_global_loadparm(self):
+ # create a empty smb.conf file
+ smb_conf = self.touch_temp_file("smb.conf")
+
+ # we can create a non-global Loadparm that overrides the default
+ # behaviour and creates a separate underlying object
+ lp1 = param.LoadParm()
+ lp2 = param.LoadParm(filename_for_non_global_lp=smb_conf)
+
+ # setting a value for the global LP does not affect the non-global LP
+ lp1_realm = "JUST.A.TEST"
+ self.assertNotEqual(lp2.get('realm'), lp1_realm)
+ lp1.set('realm', lp1_realm)
+ self.assertEqual(lp1.get('realm'), lp1_realm)
+ self.assertNotEqual(lp2.get('realm'), lp1_realm)
+
+ # and vice versa
+ lp2_realm = "TEST.REALM.LP2"
+ lp2.set('realm', lp2_realm)
+ self.assertEqual(lp2.get('realm'), lp2_realm)
+ self.assertEqual(lp1.get('realm'), lp1_realm)
+
+ def test_non_global_loadparm_bad_path(self):
+ non_existent_file = os.path.join(self.tempdir, 'not-there')
+
+ # we can create a non-global Loadparm that overrides the default
+ # behaviour and creates a separate underlying object
+ self.assertRaises(ValueError,
+ param.LoadParm,
+ filename_for_non_global_lp=non_existent_file)
+
+ # still shouldn't be there
+ self.assertRaises(ValueError,
+ param.LoadParm,
+ non_existent_file)