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Edit File: smbcontrol.py

# Blackbox tests for smbcontrol
#
# Copyright (C) Catalyst IT Ltd. 2017
#
# 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 BlackboxTestCase, BlackboxProcessError
from samba.messaging import Messaging

COMMAND = "bin/smbcontrol"
PING    = "ping"
USAGE   = "pool-usage"

class SmbcontrolBlackboxTests(BlackboxTestCase):

def setUp(self):
        super(SmbcontrolBlackboxTests, self).setUp()
        lp_ctx = self.get_loadparm()
        self.msg_ctx = Messaging(lp_ctx=lp_ctx)

def test_expected_processes(self):
        """
        Test that the expected samba processes are running, currently we only
        check that at least one process is running
        """
        processes = self.msg_ctx.irpc_all_servers()
        if not processes:
            self.fail("No samba processes returned")

def test_ping(self):
        """Test that all the samba processes can be pinged"""

processes = self.msg_ctx.irpc_all_servers()

for p in processes:
            for id in p.ids:
                if p.name != "samba":
                    try:
                        self.check_run("%s %d %s" % (COMMAND, id.pid, PING),
                                       msg="trying to ping %s" % p.name)
                    except BlackboxProcessError as e:
                        # This process could not be pinged, which is
                        # expected (occasionally) if the ldap_server
                        # is using the "standard process model" and
                        # forking a short-lived child for each
                        # connection. We don't care about this, so we
                        # list the processes again and assume that
                        # only those that remain are relevant to the
                        # ping test. Additionally we ensure that at
                        # least one process of each name remains -- in
                        # the ldap_server case, we expect at least the
                        # parent to be there.
                        name_exists = False
                        surviving_processes = self.msg_ctx.irpc_all_servers()
                        for q in surviving_processes:
                            if q.name == p.name:
                                name_exists = True
                                if id.pid in [x.pid for x in q.ids]:
                                    # the unpingable server is still
                                    # listed, meaning it is broken
                                    raise

if not name_exists:
                            # it looks like the service genuinely died
                            # just at this moment
                            raise

print("Ignoring error %s:" % e)
                        print("the process probably died before our ping")
                        continue

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