mcs/class/corlib/Test/System.Threading/ThreadPoolTest.cs

   1 //
   2 // ThreadPoolTest.cs
   3 //
   4 // Authors:
   5 //      Marek Safar  <marek.safar@gmail.com>
   6 //
   7 // Copyright (C) 2013 Xamarin Inc (http://www.xamarin.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining a copy
  10 // of this software and associated documentation files (the "Software"), to deal
  11 // in the Software without restriction, including without limitation the rights
  12 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  13 // copies of the Software, and to permit persons to whom the Software is
  14 // furnished to do so, subject to the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be included in
  17 // all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  22 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  25 // THE SOFTWARE.
  26 //
  27 //
  28
  29 using System;
  30 using System.Threading;
  31 using NUnit.Framework;
  32
  33 namespace MonoTests.System.Threading
  34 {
  35         [TestFixture]
  36         public class ThreadPoolTests
  37         {
  38                 [Test]
  39                 public void RegisterWaitForSingleObject_InvalidArguments ()
  40                 {
  41                         try {
  42                                 ThreadPool.RegisterWaitForSingleObject (null, delegate {}, new object (), 100, false);
  43                                 Assert.Fail ("#1");
  44                         } catch (ArgumentNullException) {
  45                         }
  46
  47                         try {
  48                                 ThreadPool.RegisterWaitForSingleObject (new Mutex (), null, new object (), 100, false);
  49                                 Assert.Fail ("#2");
  50                         } catch (ArgumentNullException) {
  51                         }
  52                 }
  53
  54                 [Test]
  55                 public void UnsafeQueueUserWorkItem_InvalidArguments ()
  56                 {
  57                         try {
  58                                 ThreadPool.UnsafeQueueUserWorkItem (null, 1);
  59                                 Assert.Fail ("#1");
  60                         } catch (ArgumentNullException) {
  61                         }
  62                 }
  63
  64                 [Test]
  65                 public void QueueUserWorkItem ()
  66                 {
  67                         int n = 100000;
  68                         int total = 0, sum = 0;
  69                         for (int i = 0; i < n; ++i) {
  70                                 if (i % 2 == 0)
  71                                         ThreadPool.QueueUserWorkItem (_ => { Interlocked.Decrement (ref sum); Interlocked.Increment (ref total); });
  72                                 else
  73                                         ThreadPool.QueueUserWorkItem (_ => { Interlocked.Increment (ref sum); Interlocked.Increment (ref total); });
  74                         }
  75                         var start = DateTime.Now;
  76                         while ((total != n || sum != 0) && (DateTime.Now - start).TotalSeconds < 60)
  77                                 Thread.Sleep (1000);
  78                         Assert.IsTrue (total == n, "#1");
  79                         Assert.IsTrue (sum   == 0, "#2");
  80                 }
  81
  82 #if NET_4_0
  83                 event WaitCallback e;
  84
  85                 [Test]
  86                 public void UnsafeQueueUserWorkItem_MulticastDelegate ()
  87                 {
  88                         CountdownEvent ev = new CountdownEvent (2);
  89
  90                         e += delegate {
  91                                 ev.Signal ();
  92                         };
  93
  94                         e += delegate {
  95                                 ev.Signal ();
  96                         };
  97
  98                         ThreadPool.UnsafeQueueUserWorkItem (e, null);
  99                         Assert.IsTrue (ev.Wait (3000));
 100                 }
 101 #endif
 102         }
 103 }