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 #if NET_4_0
  30
  31 using System;
  32 using System.Threading;
  33 using System.Threading.Tasks;
  34
  35 using NUnit.Framework;
  36 #if !MOBILE
  37 using NUnit.Framework.SyntaxHelpers;
  38 #endif
  39
  40 namespace MonoTests.System.Threading.Tasks
  41 {
  42         [TestFixture]
  43         public class TaskFactory_T_Tests
  44         {
  45                 class CompletedAsyncResult : IAsyncResult
  46                 {
  47                         public object AsyncState
  48                         {
  49                                 get { throw new NotImplementedException (); }
  50                         }
  51
  52                         public WaitHandle AsyncWaitHandle
  53                         {
  54                                 get { throw new NotImplementedException (); }
  55                         }
  56
  57                         public bool CompletedSynchronously
  58                         {
  59                                 get { throw new NotImplementedException (); }
  60                         }
  61
  62                         public bool IsCompleted
  63                         {
  64                                 get { return true; }
  65                         }
  66                 }
  67
  68                 class TestAsyncResult : IAsyncResult
  69                 {
  70                         WaitHandle wh = new ManualResetEvent (true);
  71
  72                         public object AsyncState
  73                         {
  74                                 get { throw new NotImplementedException (); }
  75                         }
  76
  77                         public WaitHandle AsyncWaitHandle
  78                         {
  79                                 get
  80                                 {
  81                                         return wh;
  82                                 }
  83                         }
  84
  85                         public bool CompletedSynchronously
  86                         {
  87                                 get { throw new NotImplementedException (); }
  88                         }
  89
  90                         public bool IsCompleted
  91                         {
  92                                 get { return false; }
  93                         }
  94                 }
  95
  96                 class TestAsyncResultCompletedSynchronously : IAsyncResult
  97                 {
  98                         public object AsyncState {
  99                                 get {
 100                                         throw new NotImplementedException ();
 101                                 }
 102                         }
 103
 104                         public WaitHandle AsyncWaitHandle {
 105                                 get {
 106                                         throw new NotImplementedException ();
 107                                 }
 108                         }
 109
 110                         public bool CompletedSynchronously {
 111                                 get {
 112                                         return true;
 113                                 }
 114                         }
 115
 116                         public bool IsCompleted {
 117                                 get {
 118                                         throw new NotImplementedException ();
 119                                 }
 120                         }
 121                 }
 122
 123
 124                 [SetUp]
 125                 public void Setup ()
 126                 {
 127                 }
 128
 129                 [Test]
 130                 public void ConstructorTest ()
 131                 {
 132                         try {
 133                                 new TaskFactory<int> (TaskCreationOptions.None, TaskContinuationOptions.ExecuteSynchronously | TaskContinuationOptions.LongRunning);
 134                                 Assert.Fail ("#1");
 135                         } catch (ArgumentOutOfRangeException) {
 136                         }
 137
 138                         try {
 139                                 new TaskFactory<int> (TaskCreationOptions.None, TaskContinuationOptions.OnlyOnRanToCompletion);
 140                                 Assert.Fail ("#2");
 141                         } catch (ArgumentOutOfRangeException) {
 142                         }
 143
 144                         try {
 145                                 new TaskFactory<int> (TaskCreationOptions.None, TaskContinuationOptions.NotOnRanToCompletion);
 146                                 Assert.Fail ("#3");
 147                         } catch (ArgumentOutOfRangeException) {
 148                         }
 149                 }
 150
 151                 [Test]
 152                 public void NoDefaultScheduler ()
 153                 {
 154                         var tf = new TaskFactory<object> ();
 155                         Assert.IsNull (tf.Scheduler, "#1");
 156                 }
 157
 158                 [Test]
 159                 public void FromAsync_ArgumentsCheck ()
 160                 {
 161                         var factory = new TaskFactory<object> ();
 162
 163                         var result = new CompletedAsyncResult ();
 164                         try {
 165                                 factory.FromAsync (null, l => 1);
 166                                 Assert.Fail ("#1");
 167                         } catch (ArgumentNullException) {
 168                         }
 169
 170                         try {
 171                                 factory.FromAsync (result, null);
 172                                 Assert.Fail ("#2");
 173                         } catch (ArgumentNullException) {
 174                         }
 175
 176                         try {
 177                                 factory.FromAsync (result, l => 1, TaskCreationOptions.LongRunning);
 178                                 Assert.Fail ("#3");
 179                         } catch (ArgumentOutOfRangeException) {
 180                         }
 181
 182                         try {
 183                                 factory.FromAsync (result, l => 1, TaskCreationOptions.PreferFairness);
 184                                 Assert.Fail ("#4");
 185                         } catch (ArgumentOutOfRangeException) {
 186                         }
 187
 188                         try {
 189                                 factory.FromAsync (result, l => 1, TaskCreationOptions.None, null);
 190                                 Assert.Fail ("#5");
 191                         } catch (ArgumentNullException) {
 192                         }
 193
 194                         try {
 195                                 factory.FromAsync (null, l => 1, null, TaskCreationOptions.None);
 196                                 Assert.Fail ("#6");
 197                         } catch (ArgumentNullException) {
 198                         }
 199                 }
 200
 201                 [Test]
 202                 public void FromAsync_SimpleAsyncResult ()
 203                 {
 204                         var result = new TestAsyncResult ();
 205
 206                         var factory = new TaskFactory<int> ();
 207                         var task = factory.FromAsync (result, l => 5);
 208
 209                         Assert.IsTrue (task.Wait (1000), "#1");
 210                         Assert.AreEqual (5, task.Result, "#2");
 211                 }
 212
 213                 IAsyncResult BeginGetTestAsyncResultCompletedSynchronously (AsyncCallback cb, object obj)
 214                 {
 215                         return new TestAsyncResultCompletedSynchronously ();
 216                 }
 217
 218                 string EndGetTestAsyncResultCompletedSynchronously (IAsyncResult res)
 219                 {
 220                         return "1";
 221                 }
 222
 223                 [Test]
 224                 public void FromAsync_CompletedSynchronously ()
 225                 {
 226                         var factory = new TaskFactory<string> ();
 227                         var task = factory.FromAsync (BeginGetTestAsyncResultCompletedSynchronously, EndGetTestAsyncResultCompletedSynchronously, null);
 228
 229                         Assert.IsTrue (task.Wait (1000), "#1");
 230                         Assert.AreEqual ("1", task.Result, "#2");
 231                 }
 232
 233                 IAsyncResult BeginGetTestAsyncResultCompletedSynchronously2 (AsyncCallback cb, object obj)
 234                 {
 235                         var result = new TestAsyncResultCompletedSynchronously ();
 236                         cb (result);
 237                         return result;
 238                 }
 239
 240                 string EndGetTestAsyncResultCompletedSynchronously2 (IAsyncResult res)
 241                 {
 242                         return "1";
 243                 }
 244
 245                 [Test]
 246                 public void FromAsync_CompletedSynchronously_with_Callback ()
 247                 {
 248                         var factory = new TaskFactory<string> ();
 249                         var task = factory.FromAsync (BeginGetTestAsyncResultCompletedSynchronously2, EndGetTestAsyncResultCompletedSynchronously2, null);
 250
 251                         Assert.IsTrue (task.Wait (1000), "#1");
 252                         Assert.AreEqual ("1", task.Result, "#2");
 253                 }
 254
 255                 [Test]
 256                 public void StartNewCancelled ()
 257                 {
 258                         var ct = new CancellationToken (true);
 259                         var factory = new TaskFactory<int> ();
 260
 261                         var task = factory.StartNew (() => { Assert.Fail ("Should never be called"); return 1; }, ct);
 262                         try {
 263                                 task.Start ();
 264                                 Assert.Fail ("#1");
 265                         } catch (InvalidOperationException) {
 266                         }
 267
 268                         Assert.IsTrue (task.IsCanceled, "#2");
 269
 270                         task = factory.StartNew (() => 1, ct);
 271                         try {
 272                                 task.Wait ();
 273                         } catch (AggregateException e) {
 274                                 Assert.IsTrue (task.IsCanceled, "#3");
 275                                 Assert.That (e.InnerException, Is.TypeOf (typeof (TaskCanceledException)), "#4");
 276                         }
 277                 }
 278         }
 279 }
 280
 281 #endif