lib/tevent/bindings.py

   1 #!/usr/bin/python
   2 #
   3 #   Python integration for tevent - tests
   4 #
   5 #   Copyright (C) Jelmer Vernooij 2010
   6 #
   7 #     ** NOTE! The following LGPL license applies to the tevent
   8 #     ** library. This does NOT imply that all of Samba is released
   9 #     ** under the LGPL
  10 #
  11 #   This library is free software; you can redistribute it and/or
  12 #   modify it under the terms of the GNU Lesser General Public
  13 #   License as published by the Free Software Foundation; either
  14 #   version 3 of the License, or (at your option) any later version.
  15 #
  16 #   This library is distributed in the hope that it will be useful,
  17 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19 #   Lesser General Public License for more details.
  20 #
  21 #   You should have received a copy of the GNU Lesser General Public
  22 #   License along with this library; if not, see <http://www.gnu.org/licenses/>.
  23
  24 import signal
  25 from unittest import TestCase, TestProgram
  26 import gc
  27
  28 import _tevent
  29
  30 class BackendListTests(TestCase):
  31
  32     def test_backend_list(self):
  33         self.assertTrue(isinstance(_tevent.backend_list(), list))
  34
  35
  36 class CreateContextTests(TestCase):
  37
  38     def test_by_name(self):
  39         ctx = _tevent.Context(_tevent.backend_list()[0])
  40         self.assertTrue(ctx is not None)
  41
  42     def test_no_name(self):
  43         ctx = _tevent.Context()
  44         self.assertTrue(ctx is not None)
  45
  46
  47 class ContextTests(TestCase):
  48
  49     def setUp(self):
  50         super(ContextTests, self).setUp()
  51         self.ctx = _tevent.Context()
  52
  53     def test_signal_support(self):
  54         self.assertTrue(type(self.ctx.signal_support) is bool)
  55
  56     def test_reinitialise(self):
  57         self.ctx.reinitialise()
  58
  59     def test_loop_wait(self):
  60         self.ctx.loop_wait()
  61
  62     def test_add_signal(self):
  63         sig = self.ctx.add_signal(signal.SIGINT, 0, lambda callback: None)
  64         self.assertTrue(isinstance(sig, _tevent.Signal))
  65
  66     def test_timer(self):
  67         """Test a timer is can be scheduled"""
  68         collecting_list = []
  69         # time "0" has already passed, callback will be scheduled immediately
  70         timer = self.ctx.add_timer(0, lambda t: collecting_list.append(True))
  71         self.assertTrue(timer.active)
  72         self.assertEqual(collecting_list, [])
  73         self.ctx.loop_once()
  74         self.assertFalse(timer.active)
  75         self.assertEqual(collecting_list, [True])
  76
  77     def test_timer_deallocate_timer(self):
  78         """Test timer is scheduled even if reference to it isn't held"""
  79         collecting_list = []
  80         def callback(t):
  81             collecting_list.append(True)
  82         timer = self.ctx.add_timer(0, lambda t: collecting_list.append(True))
  83         gc.collect()
  84         self.assertEqual(collecting_list, [])
  85         self.ctx.loop_once()
  86         self.assertEqual(collecting_list, [True])
  87
  88     def test_timer_deallocate_context(self):
  89         """Test timer is unscheduled when context is freed"""
  90         collecting_list = []
  91         def callback(t):
  92             collecting_list.append(True)
  93         timer = self.ctx.add_timer(0, lambda t: collecting_list.append(True))
  94         self.assertTrue(timer.active)
  95         del self.ctx
  96         gc.collect()
  97         self.assertEqual(collecting_list, [])
  98         self.assertFalse(timer.active)
  99
 100     def test_timer_offset(self):
 101         """Test scheduling timer with an offset"""
 102         collecting_list = []
 103         self.ctx.add_timer_offset(0.2, lambda t: collecting_list.append(2))
 104         self.ctx.add_timer_offset(0.1, lambda t: collecting_list.append(1))
 105         self.assertEqual(collecting_list, [])
 106         self.ctx.loop_once()
 107         self.assertEqual(collecting_list, [1])
 108         self.ctx.loop_once()
 109         self.assertEqual(collecting_list, [1, 2])
 110
 111 if __name__ == '__main__':
 112     TestProgram()