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 #if !MOBILE
  36 using NUnit.Framework.SyntaxHelpers;
  37 #endif
  38
  39 namespace MonoTests.System.Threading.Tasks
  40 {
  41         [TestFixture]
  42         public class TaskFactory_T_Tests
  43         {
  44                 class CompletedAsyncResult : IAsyncResult
  45                 {
  46                         public object AsyncState
  47                         {
  48                                 get { throw new NotImplementedException (); }
  49                         }
  50
  51                         public WaitHandle AsyncWaitHandle
  52                         {
  53                                 get { throw new NotImplementedException (); }
  54                         }
  55
  56                         public bool CompletedSynchronously
  57                         {
  58                                 get { throw new NotImplementedException (); }
  59                         }
  60
  61                         public bool IsCompleted
  62                         {
  63                                 get { return true; }
  64                         }
  65                 }
  66
  67                 class TestAsyncResult : IAsyncResult
  68                 {
  69                         WaitHandle wh = new ManualResetEvent (true);
  70
  71                         public object AsyncState
  72                         {
  73                                 get { throw new NotImplementedException (); }
  74                         }
  75
  76                         public WaitHandle AsyncWaitHandle
  77                         {
  78                                 get
  79                                 {
  80                                         return wh;
  81                                 }
  82                         }
  83
  84                         public bool CompletedSynchronously
  85                         {
  86                                 get { throw new NotImplementedException (); }
  87                         }
  88
  89                         public bool IsCompleted
  90                         {
  91                                 get { return false; }
  92                         }
  93                 }
  94
  95                 class TestAsyncResultCompletedSynchronously : IAsyncResult
  96                 {
  97                         public object AsyncState {
  98                                 get {
  99                                         throw new NotImplementedException ();
 100                                 }
 101                         }
 102
 103                         public WaitHandle AsyncWaitHandle {
 104                                 get {
 105                                         throw new NotImplementedException ();
 106                                 }
 107                         }
 108
 109                         public bool CompletedSynchronously {
 110                                 get {
 111                                         return true;
 112                                 }
 113                         }
 114
 115                         public bool IsCompleted {
 116                                 get {
 117                                         throw new NotImplementedException ();
 118                                 }
 119                         }
 120                 }
 121
 122
 123                 [SetUp]
 124                 public void Setup ()
 125                 {
 126                 }
 127
 128                 [Test]
 129                 public void ConstructorTest ()
 130                 {
 131                         try {
 132                                 new TaskFactory<int> (TaskCreationOptions.None, TaskContinuationOptions.ExecuteSynchronously | TaskContinuationOptions.LongRunning);
 133                                 Assert.Fail ("#1");
 134                         } catch (ArgumentOutOfRangeException) {
 135                         }
 136
 137                         try {
 138                                 new TaskFactory<int> (TaskCreationOptions.None, TaskContinuationOptions.OnlyOnRanToCompletion);
 139                                 Assert.Fail ("#2");
 140                         } catch (ArgumentOutOfRangeException) {
 141                         }
 142
 143                         try {
 144                                 new TaskFactory<int> (TaskCreationOptions.None, TaskContinuationOptions.NotOnRanToCompletion);
 145                                 Assert.Fail ("#3");
 146                         } catch (ArgumentOutOfRangeException) {
 147                         }
 148                 }
 149
 150                 [Test]
 151                 public void NoDefaultScheduler ()
 152                 {
 153                         var tf = new TaskFactory<object> ();
 154                         Assert.IsNull (tf.Scheduler, "#1");
 155                 }
 156
 157                 [Test]
 158                 public void FromAsync_ArgumentsCheck ()
 159                 {
 160                         var factory = new TaskFactory<object> ();
 161
 162                         var result = new CompletedAsyncResult ();
 163                         try {
 164                                 factory.FromAsync (null, l => 1);
 165                                 Assert.Fail ("#1");
 166                         } catch (ArgumentNullException) {
 167                         }
 168
 169                         try {
 170                                 factory.FromAsync (result, null);
 171                                 Assert.Fail ("#2");
 172                         } catch (ArgumentNullException) {
 173                         }
 174
 175                         try {
 176                                 factory.FromAsync (result, l => 1, TaskCreationOptions.LongRunning);
 177                                 Assert.Fail ("#3");
 178                         } catch (ArgumentOutOfRangeException) {
 179                         }
 180
 181                         try {
 182                                 factory.FromAsync (result, l => 1, TaskCreationOptions.PreferFairness);
 183                                 Assert.Fail ("#4");
 184                         } catch (ArgumentOutOfRangeException) {
 185                         }
 186
 187                         try {
 188                                 factory.FromAsync (result, l => 1, TaskCreationOptions.None, null);
 189                                 Assert.Fail ("#5");
 190                         } catch (ArgumentNullException) {
 191                         }
 192
 193                         try {
 194                                 factory.FromAsync (null, l => 1, null, TaskCreationOptions.None);
 195                                 Assert.Fail ("#6");
 196                         } catch (ArgumentNullException) {
 197                         }
 198                 }
 199
 200                 [Test]
 201                 public void FromAsync_SimpleAsyncResult ()
 202                 {
 203                         var result = new TestAsyncResult ();
 204
 205                         var factory = new TaskFactory<int> ();
 206                         var task = factory.FromAsync (result, l => 5);
 207
 208                         Assert.IsTrue (task.Wait (1000), "#1");
 209                         Assert.AreEqual (5, task.Result, "#2");
 210                 }
 211
 212                 IAsyncResult BeginGetTestAsyncResultCompletedSynchronously (AsyncCallback cb, object obj)
 213                 {
 214                         return new TestAsyncResultCompletedSynchronously ();
 215                 }
 216
 217                 string EndGetTestAsyncResultCompletedSynchronously (IAsyncResult res)
 218                 {
 219                         return "1";
 220                 }
 221
 222                 [Test]
 223                 public void FromAsync_CompletedSynchronously ()
 224                 {
 225                         var factory = new TaskFactory<string> ();
 226                         var task = factory.FromAsync (BeginGetTestAsyncResultCompletedSynchronously, EndGetTestAsyncResultCompletedSynchronously, null);
 227
 228                         Assert.IsTrue (task.Wait (1000), "#1");
 229                         Assert.AreEqual ("1", task.Result, "#2");
 230                 }
 231
 232                 IAsyncResult BeginGetTestAsyncResultCompletedSynchronously2 (AsyncCallback cb, object obj)
 233                 {
 234                         var result = new TestAsyncResultCompletedSynchronously ();
 235                         cb (result);
 236                         return result;
 237                 }
 238
 239                 string EndGetTestAsyncResultCompletedSynchronously2 (IAsyncResult res)
 240                 {
 241                         return "1";
 242                 }
 243
 244                 [Test]
 245                 public void FromAsync_CompletedSynchronously_with_Callback ()
 246                 {
 247                         var factory = new TaskFactory<string> ();
 248                         var task = factory.FromAsync (BeginGetTestAsyncResultCompletedSynchronously2, EndGetTestAsyncResultCompletedSynchronously2, null);
 249
 250                         Assert.IsTrue (task.Wait (1000), "#1");
 251                         Assert.AreEqual ("1", task.Result, "#2");
 252                 }
 253
 254                 [Test]
 255                 public void StartNewCancelled ()
 256                 {
 257                         var ct = new CancellationToken (true);
 258                         var factory = new TaskFactory<int> ();
 259
 260                         var task = factory.StartNew (() => { Assert.Fail ("Should never be called"); return 1; }, ct);
 261                         try {
 262                                 task.Start ();
 263                                 Assert.Fail ("#1");
 264                         } catch (InvalidOperationException) {
 265                         }
 266
 267                         try {
 268                                 task.Wait ();
 269                                 Assert.Fail ("#2");
 270                         } catch (AggregateException e) {
 271                                 Assert.That (e.InnerException, Is.TypeOf (typeof (TaskCanceledException)), "#3");
 272                         }
 273
 274                         Assert.IsTrue (task.IsCanceled, "#4");
 275                 }
 276         }
 277 }
 278