mcs/class/corlib/Test/System.Runtime.CompilerServices/TaskAwaiterTest.cs

   1 //
   2 // TaskAwaiterTest.cs
   3 //
   4 // Authors:
   5 //      Marek Safar  <marek.safar@gmail.com>
   6 //
   7 // Copyright (C) 2011 Xamarin, Inc (http://www.xamarin.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 #if NET_4_5
  30
  31 using System;
  32 using System.Threading;
  33 using System.Threading.Tasks;
  34 using NUnit.Framework;
  35 using System.Runtime.CompilerServices;
  36
  37 namespace MonoTests.System.Runtime.CompilerServices
  38 {
  39         [TestFixture]
  40         public class TaskAwaiterTest
  41         {
  42                 [Test]
  43                 public void GetResultFaulted ()
  44                 {
  45                         TaskAwaiter awaiter;
  46
  47                         var task = new Task (() => { throw new ApplicationException (); });
  48                         awaiter = task.GetAwaiter ();
  49                         task.RunSynchronously (TaskScheduler.Current);
  50
  51
  52                         Assert.IsTrue (awaiter.IsCompleted);
  53
  54                         try {
  55                                 awaiter.GetResult ();
  56                                 Assert.Fail ();
  57                         } catch (ApplicationException) {
  58                         }
  59                 }
  60
  61                 [Test]
  62                 public void GetResultCanceled ()
  63                 {
  64                         TaskAwaiter awaiter;
  65
  66                         var token = new CancellationToken (true);
  67                         var task = new Task (() => { }, token);
  68                         awaiter = task.GetAwaiter ();
  69
  70                         try {
  71                                 awaiter.GetResult ();
  72                                 Assert.Fail ();
  73                         } catch (TaskCanceledException) {
  74                         }
  75                 }
  76
  77                 [Test]
  78                 public void GetResultWaitOnCompletion ()
  79                 {
  80                         TaskAwaiter awaiter;
  81
  82                         var task = Task.Delay (30);
  83                         awaiter = task.GetAwaiter ();
  84
  85                         awaiter.GetResult ();
  86                         Assert.AreEqual (TaskStatus.RanToCompletion, task.Status);
  87                 }
  88         }
  89 }
  90
  91 #endif