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
  31 class BackendListTests(TestCase):
  32
  33     def test_backend_list(self):
  34         self.assertTrue(isinstance(_tevent.backend_list(), list))
  35
  36
  37 class CreateContextTests(TestCase):
  38
  39     def test_by_name(self):
  40         ctx = _tevent.Context(_tevent.backend_list()[0])
  41         self.assertTrue(ctx is not None)
  42
  43     def test_no_name(self):
  44         ctx = _tevent.Context()
  45         self.assertTrue(ctx is not None)
  46
  47
  48 class ContextTests(TestCase):
  49
  50     def setUp(self):
  51         super(ContextTests, self).setUp()
  52         self.ctx = _tevent.Context()
  53
  54     def test_signal_support(self):
  55         self.assertTrue(type(self.ctx.signal_support) is bool)
  56
  57     def test_reinitialise(self):
  58         self.ctx.reinitialise()
  59
  60     def test_loop_wait(self):
  61         self.ctx.loop_wait()
  62
  63     def test_add_signal(self):
  64         sig = self.ctx.add_signal(signal.SIGINT, 0, lambda callback: None)
  65         self.assertTrue(isinstance(sig, _tevent.Signal))
  66
  67     def test_timer(self):
  68         """Test a timer is can be scheduled"""
  69         collecting_list = []
  70         # time "0" has already passed, callback will be scheduled immediately
  71         timer = self.ctx.add_timer(0, lambda t: collecting_list.append(True))
  72         self.assertTrue(timer.active)
  73         self.assertEqual(collecting_list, [])
  74         self.ctx.loop_once()
  75         self.assertFalse(timer.active)
  76         self.assertEqual(collecting_list, [True])
  77
  78     def test_timer_deallocate_timer(self):
  79         """Test timer is scheduled even if reference to it isn't held"""
  80         collecting_list = []
  81
  82         def callback(t):
  83             collecting_list.append(True)
  84         timer = self.ctx.add_timer(0, lambda t: collecting_list.append(True))
  85         gc.collect()
  86         self.assertEqual(collecting_list, [])
  87         self.ctx.loop_once()
  88         self.assertEqual(collecting_list, [True])
  89
  90     def test_timer_deallocate_context(self):
  91         """Test timer is unscheduled when context is freed"""
  92         collecting_list = []
  93
  94         def callback(t):
  95             collecting_list.append(True)
  96         timer = self.ctx.add_timer(0, lambda t: collecting_list.append(True))
  97         self.assertTrue(timer.active)
  98         del self.ctx
  99         gc.collect()
 100         self.assertEqual(collecting_list, [])
 101         self.assertFalse(timer.active)
 102
 103     def test_timer_offset(self):
 104         """Test scheduling timer with an offset"""
 105         collecting_list = []
 106         self.ctx.add_timer_offset(0.2, lambda t: collecting_list.append(2))
 107         self.ctx.add_timer_offset(0.1, lambda t: collecting_list.append(1))
 108         self.assertEqual(collecting_list, [])
 109         self.ctx.loop_once()
 110         self.assertEqual(collecting_list, [1])
 111         self.ctx.loop_once()
 112         self.assertEqual(collecting_list, [1, 2])
 113
 114
 115 if __name__ == '__main__':
 116     TestProgram()