python/samba/tests/messaging.py

   1 # -*- coding: utf-8 -*-
   2 #
   3 # Unix SMB/CIFS implementation.
   4 # Copyright © Jelmer Vernooij <jelmer@samba.org> 2008
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 #
  19
  20 """Tests for samba.messaging."""
  21 import samba
  22 from samba.messaging import Messaging
  23 from samba.tests import TestCase
  24 import time
  25 from samba.ndr import ndr_print
  26 from samba.dcerpc import server_id
  27 import random
  28 import os
  29
  30
  31 class MessagingTests(TestCase):
  32
  33     def get_context(self, *args, **kwargs):
  34         kwargs['lp_ctx'] = samba.tests.env_loadparm()
  35         return Messaging(*args, **kwargs)
  36
  37     def test_register(self):
  38         x = self.get_context()
  39
  40         def callback():
  41             pass
  42         callback_and_context = (callback, None)
  43         msg_type = x.register(callback_and_context)
  44         self.addCleanup(x.deregister, callback_and_context, msg_type)
  45         self.assertTrue(isinstance(msg_type, int))
  46
  47     def test_all_servers(self):
  48         x = self.get_context()
  49         self.assertTrue(isinstance(x.irpc_all_servers(), list))
  50
  51     def test_by_name(self):
  52         x = self.get_context()
  53         for name in x.irpc_all_servers():
  54             self.assertTrue(isinstance(x.irpc_servers_byname(name.name), list))
  55
  56     def test_unknown_name(self):
  57         x = self.get_context()
  58         self.assertRaises(KeyError,
  59                           x.irpc_servers_byname, "samba.messaging test NONEXISTING")
  60
  61     def test_assign_server_id(self):
  62         x = self.get_context()
  63         self.assertTrue(isinstance(x.server_id, server_id.server_id))
  64
  65     def test_add_remove_name(self):
  66         x = self.get_context()
  67         name = "samba.messaging test-%d" % random.randint(1, 1000000)
  68         x.irpc_add_name(name)
  69         name_list = x.irpc_servers_byname(name)
  70         self.assertEqual(len(name_list), 1)
  71         self.assertEqual(ndr_print(x.server_id),
  72                          ndr_print(name_list[0]))
  73         x.irpc_remove_name(name)
  74         self.assertRaises(KeyError,
  75                           x.irpc_servers_byname, name)
  76
  77     def test_ping_speed(self):
  78         got_ping = {"count": 0}
  79         got_pong = {"count": 0}
  80         timeout = False
  81
  82         msg_pong = 0
  83         msg_ping = 0
  84
  85         server_ctx = self.get_context((0, 1))
  86
  87         def ping_callback(got_ping, msg_type, src, data):
  88             got_ping["count"] += 1
  89             server_ctx.send(src, msg_pong, data)
  90
  91         ping_callback_and_context = (ping_callback, got_ping)
  92         msg_ping = server_ctx.register(ping_callback_and_context)
  93         self.addCleanup(server_ctx.deregister,
  94                         ping_callback_and_context,
  95                         msg_ping)
  96
  97         def pong_callback(got_pong, msg_type, src, data):
  98             got_pong["count"] += 1
  99
 100         client_ctx = self.get_context((0, 2))
 101         pong_callback_and_context = (pong_callback, got_pong)
 102         msg_pong = client_ctx.register(pong_callback_and_context)
 103         self.addCleanup(client_ctx.deregister,
 104                         pong_callback_and_context,
 105                         msg_pong)
 106
 107         # Try both server_id forms (structure and tuple)
 108         client_ctx.send((0, 1), msg_ping, "testing")
 109
 110         client_ctx.send((0, 1), msg_ping, "testing2")
 111
 112         start_time = time.time()
 113
 114         # NOTE WELL: If debugging this with GDB, then the timeout will
 115         # fire while you are trying to understand it.
 116
 117         while (got_ping["count"] < 2 or got_pong["count"] < 2) and not timeout:
 118             client_ctx.loop_once(0.1)
 119             server_ctx.loop_once(0.1)
 120             if time.time() - start_time > 1:
 121                 timeout = True
 122
 123         self.assertEqual(got_ping["count"], 2)
 124         self.assertEqual(got_pong["count"], 2)
 125
 126     def test_pid_defaulting(self):
 127         got_ping = {"count": 0}
 128         got_pong = {"count": 0}
 129         timeout = False
 130
 131         msg_pong = 0
 132         msg_ping = 0
 133
 134         pid = os.getpid()
 135         server_ctx = self.get_context((pid, 1))
 136
 137         def ping_callback(got_ping, msg_type, src, data):
 138             got_ping["count"] += 1
 139             server_ctx.send(src, msg_pong, data)
 140
 141         ping_callback_and_context = (ping_callback, got_ping)
 142         msg_ping = server_ctx.register(ping_callback_and_context)
 143         self.addCleanup(server_ctx.deregister,
 144                         ping_callback_and_context,
 145                         msg_ping)
 146
 147         def pong_callback(got_pong, msg_type, src, data):
 148             got_pong["count"] += 1
 149
 150         client_ctx = self.get_context((2,))
 151         pong_callback_and_context = (pong_callback, got_pong)
 152         msg_pong = client_ctx.register(pong_callback_and_context)
 153         self.addCleanup(client_ctx.deregister,
 154                         pong_callback_and_context,
 155                         msg_pong)
 156
 157         # Try one and two element tuple forms
 158         client_ctx.send((pid, 1), msg_ping, "testing")
 159
 160         client_ctx.send((1,), msg_ping, "testing2")
 161
 162         start_time = time.time()
 163
 164         # NOTE WELL: If debugging this with GDB, then the timeout will
 165         # fire while you are trying to understand it.
 166
 167         while (got_ping["count"] < 2 or got_pong["count"] < 2) and not timeout:
 168             client_ctx.loop_once(0.1)
 169             server_ctx.loop_once(0.1)
 170             if time.time() - start_time > 1:
 171                 timeout = True
 172
 173         self.assertEqual(got_ping["count"], 2)
 174         self.assertEqual(got_pong["count"], 2)