mcs/class/corlib/Test/System.Threading.Tasks/TaskFactoryTest_T.cs

   1 //
   2 // TaskFactory_T_Test.cs
   3 //
   4 // Author:
   5 //       Marek Safar <marek.safargmail.com>
   6 //
   7 // Copyright 2011 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
  30 using System;
  31 using System.Threading;
  32 using System.Threading.Tasks;
  33
  34 using NUnit.Framework;
  35
  36 namespace MonoTests.System.Threading.Tasks
  37 {
  38         [TestFixture]
  39         public class TaskFactory_T_Tests
  40         {
  41                 class CompletedAsyncResult : IAsyncResult
  42                 {
  43                         public object AsyncState
  44                         {
  45                                 get { throw new NotImplementedException (); }
  46                         }
  47
  48                         public WaitHandle AsyncWaitHandle
  49                         {
  50                                 get { throw new NotImplementedException (); }
  51                         }
  52
  53                         public bool CompletedSynchronously
  54                         {
  55                                 get { throw new NotImplementedException (); }
  56                         }
  57
  58                         public bool IsCompleted
  59                         {
  60                                 get { return true; }
  61                         }
  62                 }
  63
  64                 class TestAsyncResult : IAsyncResult
  65                 {
  66                         WaitHandle wh = new ManualResetEvent (true);
  67
  68                         public object AsyncState
  69                         {
  70                                 get { throw new NotImplementedException (); }
  71                         }
  72
  73                         public WaitHandle AsyncWaitHandle
  74                         {
  75                                 get
  76                                 {
  77                                         return wh;
  78                                 }
  79                         }
  80
  81                         public bool CompletedSynchronously
  82                         {
  83                                 get { throw new NotImplementedException (); }
  84                         }
  85
  86                         public bool IsCompleted
  87                         {
  88                                 get { return false; }
  89                         }
  90                 }
  91
  92                 class TestAsyncResultCompletedSynchronously : IAsyncResult
  93                 {
  94                         public object AsyncState {
  95                                 get {
  96                                         throw new NotImplementedException ();
  97                                 }
  98                         }
  99
 100                         public WaitHandle AsyncWaitHandle {
 101                                 get {
 102                                         throw new NotImplementedException ();
 103                                 }
 104                         }
 105
 106                         public bool CompletedSynchronously {
 107                                 get {
 108                                         return true;
 109                                 }
 110                         }
 111
 112                         public bool IsCompleted {
 113                                 get {
 114                                         throw new NotImplementedException ();
 115                                 }
 116                         }
 117                 }
 118
 119
 120                 [SetUp]
 121                 public void Setup ()
 122                 {
 123                 }
 124
 125                 [Test]
 126                 public void ConstructorTest ()
 127                 {
 128                         try {
 129                                 new TaskFactory<int> (TaskCreationOptions.None, TaskContinuationOptions.ExecuteSynchronously | TaskContinuationOptions.LongRunning);
 130                                 Assert.Fail ("#1");
 131                         } catch (ArgumentOutOfRangeException) {
 132                         }
 133
 134                         try {
 135                                 new TaskFactory<int> (TaskCreationOptions.None, TaskContinuationOptions.OnlyOnRanToCompletion);
 136                                 Assert.Fail ("#2");
 137                         } catch (ArgumentOutOfRangeException) {
 138                         }
 139
 140                         try {
 141                                 new TaskFactory<int> (TaskCreationOptions.None, TaskContinuationOptions.NotOnRanToCompletion);
 142                                 Assert.Fail ("#3");
 143                         } catch (ArgumentOutOfRangeException) {
 144                         }
 145                 }
 146
 147                 [Test]
 148                 public void NoDefaultScheduler ()
 149                 {
 150                         var tf = new TaskFactory<object> ();
 151                         Assert.IsNull (tf.Scheduler, "#1");
 152                 }
 153
 154                 [Test]
 155                 public void FromAsync_ArgumentsCheck ()
 156                 {
 157                         var factory = new TaskFactory<object> ();
 158
 159                         var result = new CompletedAsyncResult ();
 160                         try {
 161                                 factory.FromAsync (null, l => 1);
 162                                 Assert.Fail ("#1");
 163                         } catch (ArgumentNullException) {
 164                         }
 165
 166                         try {
 167                                 factory.FromAsync (result, null);
 168                                 Assert.Fail ("#2");
 169                         } catch (ArgumentNullException) {
 170                         }
 171
 172                         try {
 173                                 factory.FromAsync (result, l => 1, TaskCreationOptions.LongRunning);
 174                                 Assert.Fail ("#3");
 175                         } catch (ArgumentOutOfRangeException) {
 176                         }
 177
 178                         try {
 179                                 factory.FromAsync (result, l => 1, TaskCreationOptions.PreferFairness);
 180                                 Assert.Fail ("#4");
 181                         } catch (ArgumentOutOfRangeException) {
 182                         }
 183
 184                         try {
 185                                 factory.FromAsync (result, l => 1, TaskCreationOptions.None, null);
 186                                 Assert.Fail ("#5");
 187                         } catch (ArgumentNullException) {
 188                         }
 189
 190                         try {
 191                                 factory.FromAsync (null, l => 1, null, TaskCreationOptions.None);
 192                                 Assert.Fail ("#6");
 193                         } catch (ArgumentNullException) {
 194                         }
 195                 }
 196
 197                 [Test]
 198                 public void FromAsync_SimpleAsyncResult ()
 199                 {
 200                         var result = new TestAsyncResult ();
 201
 202                         var factory = new TaskFactory<int> ();
 203                         var task = factory.FromAsync (result, l => 5);
 204
 205                         Assert.IsTrue (task.Wait (1000), "#1");
 206                         Assert.AreEqual (5, task.Result, "#2");
 207                 }
 208
 209                 IAsyncResult BeginGetTestAsyncResultCompletedSynchronously (AsyncCallback cb, object obj)
 210                 {
 211                         return new TestAsyncResultCompletedSynchronously ();
 212                 }
 213
 214                 string EndGetTestAsyncResultCompletedSynchronously (IAsyncResult res)
 215                 {
 216                         return "1";
 217                 }
 218
 219                 [Test]
 220                 public void FromAsync_CompletedSynchronously ()
 221                 {
 222                         var factory = new TaskFactory<string> ();
 223                         var task = factory.FromAsync (BeginGetTestAsyncResultCompletedSynchronously, EndGetTestAsyncResultCompletedSynchronously, null);
 224
 225                         Assert.IsTrue (task.Wait (1000), "#1");
 226                         Assert.AreEqual ("1", task.Result, "#2");
 227                 }
 228
 229                 IAsyncResult BeginGetTestAsyncResultCompletedSynchronously2 (AsyncCallback cb, object obj)
 230                 {
 231                         var result = new TestAsyncResultCompletedSynchronously ();
 232                         cb (result);
 233                         return result;
 234                 }
 235
 236                 string EndGetTestAsyncResultCompletedSynchronously2 (IAsyncResult res)
 237                 {
 238                         return "1";
 239                 }
 240
 241                 [Test]
 242                 public void FromAsync_CompletedSynchronously_with_Callback ()
 243                 {
 244                         var factory = new TaskFactory<string> ();
 245                         var task = factory.FromAsync (BeginGetTestAsyncResultCompletedSynchronously2, EndGetTestAsyncResultCompletedSynchronously2, null);
 246
 247                         Assert.IsTrue (task.Wait (1000), "#1");
 248                         Assert.AreEqual ("1", task.Result, "#2");
 249                 }
 250
 251                 [Test]
 252                 public void StartNewCancelled ()
 253                 {
 254                         var ct = new CancellationToken (true);
 255                         var factory = new TaskFactory<int> ();
 256
 257                         var task = factory.StartNew (() => { Assert.Fail ("Should never be called"); return 1; }, ct);
 258                         try {
 259                                 task.Start ();
 260                                 Assert.Fail ("#1");
 261                         } catch (InvalidOperationException) {
 262                         }
 263
 264                         try {
 265                                 task.Wait ();
 266                                 Assert.Fail ("#2");
 267                         } catch (AggregateException e) {
 268                                 Assert.That (e.InnerException, Is.TypeOf (typeof (TaskCanceledException)), "#3");
 269                         }
 270
 271                         Assert.IsTrue (task.IsCanceled, "#4");
 272                 }
 273         }
 274 }
 275