python/samba.tests: Ensure samba-tool is called with correct python ver.
[samba.git] / python / samba / tests / blackbox / smbcontrol.py
1 # Blackbox tests for smbcontrol
2 #
3 # Copyright (C) Catalyst IT Ltd. 2017
4 #
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 # GNU General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
17 #
18 from __future__ import print_function
19 from samba.tests import BlackboxTestCase, BlackboxProcessError
20 from samba.messaging import Messaging
21
22 COMMAND = "bin/smbcontrol"
23 PING    = "ping"
24 USAGE   = "pool-usage"
25
26
27 class SmbcontrolBlockboxTests(BlackboxTestCase):
28
29     def setUp(self):
30         super(SmbcontrolBlockboxTests, self).setUp()
31         lp_ctx = self.get_loadparm()
32         self.msg_ctx = Messaging(lp_ctx=lp_ctx)
33
34     def test_expected_processes(self):
35         """
36         Test that the expected samba processes are running, currently we only
37         check that at least one process is running
38         """
39         processes = self.msg_ctx.irpc_all_servers()
40         if not processes:
41             self.fail("No samba processes returned")
42
43     def test_ping(self):
44         """Test that all the samba processes can be pinged"""
45
46         processes = self.msg_ctx.irpc_all_servers()
47
48         for p in processes:
49             for id in p.ids:
50                 if p.name != "samba":
51                     try:
52                         self.check_run("%s %d %s" % (COMMAND, id.pid, PING),
53                                        msg="trying to ping %s" % p.name)
54                     except BlackboxProcessError as e:
55                         # This process could not be pinged, which is
56                         # expected (occasionally) if the ldap_server
57                         # is using the "standard process model" and
58                         # forking a short-lived child for each
59                         # connection. We don't care about this, so we
60                         # list the processes again and assume that
61                         # only those that remain are relevant to the
62                         # ping test. Additionally we ensure that at
63                         # least one process of each name remains -- in
64                         # the ldap_server case, we expect at least the
65                         # parent to be there.
66                         name_exists = False
67                         surviving_processes = self.msg_ctx.irpc_all_servers()
68                         for q in surviving_processes:
69                             if q.name == p.name:
70                                 name_exists = True
71                                 if id.pid in [x.pid for x in q.ids]:
72                                     # the unpingable server is still
73                                     # listed, meaning it is broken
74                                     raise
75
76                         if not name_exists:
77                             # it looks like the service genuinely died
78                             # just at this moment
79                             raise
80
81                         print("Ignoring error %s:" % e)
82                         print("the process probably died before our ping")
83                         continue