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

   1 #if NET_4_0
   2 // ManualResetEventSlimTests.cs
   3 //
   4 // Copyright (c) 2008 Jérémie "Garuma" Laval
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining a copy
   7 // of this software and associated documentation files (the "Software"), to deal
   8 // in the Software without restriction, including without limitation the rights
   9 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 // copies of the Software, and to permit persons to whom the Software is
  11 // furnished to do so, subject to the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be included in
  14 // all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 // THE SOFTWARE.
  23 //
  24 //
  25
  26 using System;
  27 using System.Threading;
  28
  29 using NUnit.Framework;
  30
  31 using MonoTests.System.Threading.Tasks;
  32
  33 namespace MonoTests.System.Threading
  34 {
  35
  36         [TestFixture]
  37         public class ManualResetEventSlimTests
  38         {
  39                 ManualResetEventSlim mre;
  40
  41                 [SetUp]
  42                 public void Setup()
  43                 {
  44                         mre = new ManualResetEventSlim();
  45                 }
  46
  47                 [Test]
  48                 public void Constructor_Defaults ()
  49                 {
  50                         Assert.IsFalse (mre.IsSet, "#1");
  51                         Assert.AreEqual (10, mre.SpinCount, "#2");
  52                 }
  53
  54                 [Test]
  55                 public void Constructor_Invalid ()
  56                 {
  57                         try {
  58                                 new ManualResetEventSlim (true, -1);
  59                                 Assert.Fail ("#1");
  60                         } catch (ArgumentException) {
  61                         }
  62
  63                         try {
  64                                 new ManualResetEventSlim (true, 2048);
  65                                 Assert.Fail ("#2");
  66                         } catch (ArgumentException) {
  67                         }
  68                 }
  69
  70                 [Test]
  71                 public void IsSetTestCase()
  72                 {
  73                         Assert.IsFalse(mre.IsSet, "#1");
  74                         mre.Set();
  75                         Assert.IsTrue(mre.IsSet, "#2");
  76                         mre.Reset();
  77                         Assert.IsFalse(mre.IsSet, "#3");
  78                 }
  79
  80                 [Test]
  81                 public void WaitTest()
  82                 {
  83                         int count = 0;
  84                         bool s = false;
  85
  86                         ParallelTestHelper.ParallelStressTest(mre, delegate (ManualResetEventSlim m) {
  87                                 if (Interlocked.Increment(ref count) % 2 == 0) {
  88                                         Thread.Sleep(50);
  89                                         for (int i = 0; i < 10; i++) {
  90                                                 if (i % 2 == 0)
  91                                                         m.Reset();
  92                                                 else
  93                                                         m.Set();
  94                                         }
  95                                 } else {
  96                                         m.Wait();
  97                                         s = true;
  98                                 }
  99                         }, 2);
 100
 101                         Assert.IsTrue(s, "#1");
 102                         Assert.IsTrue(mre.IsSet, "#2");
 103                 }
 104
 105                 [Test]
 106                 public void Wait_SetConcurrent ()
 107                 {
 108                         for (int i = 0; i < 10000; ++i) {
 109                                 var mre = new ManualResetEventSlim ();
 110                                 bool b = true;
 111
 112                                 ThreadPool.QueueUserWorkItem (delegate {
 113                                         mre.Set ();
 114                                 });
 115
 116                                 ThreadPool.QueueUserWorkItem (delegate {
 117                                         b &= mre.Wait (1000);
 118                                 });
 119
 120                                 Assert.IsTrue (mre.Wait (1000), i.ToString ());
 121                                 Assert.IsTrue (b, i.ToString ());
 122                         }
 123                 }
 124
 125                 [Test]
 126                 public void Wait_DisposeWithCancel ()
 127                 {
 128                         var token = new CancellationTokenSource ();
 129                         ThreadPool.QueueUserWorkItem (delegate {
 130                                 Thread.Sleep (10);
 131                                 mre.Dispose ();
 132                                 token.Cancel ();
 133                         });
 134
 135                         try {
 136                                 mre.Wait (10000, token.Token);
 137                                 Assert.Fail ("#0");
 138                         } catch (OperationCanceledException e) {
 139                         }
 140                 }
 141
 142                 [Test]
 143                 public void Wait_Expired ()
 144                 {
 145                         Assert.IsFalse (mre.Wait (10));
 146                 }
 147
 148                 [Test, ExpectedException (typeof (ObjectDisposedException))]
 149                 public void WaitAfterDisposeTest ()
 150                 {
 151                         mre.Dispose ();
 152                         mre.Wait ();
 153                 }
 154
 155                 [Test]
 156                 public void SetAfterDisposeTest ()
 157                 {
 158                         ParallelTestHelper.Repeat (delegate {
 159                                 Exception disp = null, setting = null;
 160
 161                                 CountdownEvent evt = new CountdownEvent (2);
 162                                 CountdownEvent evtFinish = new CountdownEvent (2);
 163
 164                                 ThreadPool.QueueUserWorkItem (delegate {
 165                                         try {
 166                                                 evt.Signal ();
 167                                                 evt.Wait (1000);
 168                                                 mre.Dispose ();
 169                                         } catch (Exception e) {
 170                                                 disp = e;
 171                                         }
 172                                         evtFinish.Signal ();
 173                                 });
 174                                 ThreadPool.QueueUserWorkItem (delegate {
 175                                         try {
 176                                                 evt.Signal ();
 177                                                 evt.Wait (1000);
 178                                                 mre.Set ();
 179                                         } catch (Exception e) {
 180                                                 setting = e;
 181                                         }
 182                                         evtFinish.Signal ();
 183                                 });
 184
 185                                 bool bb = evtFinish.Wait (1000);
 186                                 if (!bb)
 187                                         Assert.AreEqual (true, evtFinish.IsSet);
 188
 189                                 Assert.IsTrue (bb, "#0");
 190                                 Assert.IsNull (disp, "#1");
 191                                 Assert.IsNull (setting, "#2");
 192
 193                                 evt.Dispose ();
 194                                 evtFinish.Dispose ();
 195                         });
 196                 }
 197
 198                 [Test]
 199                 public void WaitHandle_Initialized ()
 200                 {
 201                         var mre = new ManualResetEventSlim (true);
 202                         Assert.IsTrue (mre.WaitHandle.WaitOne (0), "#1");
 203                         mre.Reset ();
 204                         Assert.IsFalse (mre.WaitHandle.WaitOne (0), "#2");
 205                         Assert.AreEqual (mre.WaitHandle, mre.WaitHandle, "#3");
 206                 }
 207
 208                 [Test]
 209                 public void WaitHandle_NotInitialized ()
 210                 {
 211                         var mre = new ManualResetEventSlim (false);
 212                         Assert.IsFalse (mre.WaitHandle.WaitOne (0), "#1");
 213                         mre.Set ();
 214                         Assert.IsTrue (mre.WaitHandle.WaitOne (0), "#2");
 215                 }
 216
 217                 [Test]
 218                 public void Dispose ()
 219                 {
 220                         var mre = new ManualResetEventSlim (false);
 221                         mre.Dispose ();
 222                         Assert.IsFalse (mre.IsSet, "#0a");
 223
 224                         try {
 225                             mre.Reset ();
 226                             Assert.Fail ("#1");
 227                         } catch (ObjectDisposedException) {
 228                         }
 229
 230                         mre.Set ();
 231
 232                         try {
 233                                 mre.Wait (0);
 234                                 Assert.Fail ("#3");
 235                         } catch (ObjectDisposedException) {
 236                         }
 237
 238                         try {
 239                                 var v = mre.WaitHandle;
 240                                 Assert.Fail ("#4");
 241                         } catch (ObjectDisposedException) {
 242                         }
 243                 }
 244
 245                 [Test]
 246                 public void Dispose_Double ()
 247                 {
 248                         var mre = new ManualResetEventSlim ();
 249                         mre.Dispose ();
 250                         mre.Dispose ();
 251                 }
 252         }
 253 }
 254 #endif