mcs/class/System.Threading.Tasks.Dataflow/Test/System.Threading.Tasks.Dataflow/CompletionTest.cs

   1 //
   2 // CompletionTest.cs
   3 //
   4 // Author:
   5 //       Jérémie "garuma" Laval <jeremie.laval@gmail.com>
   6 //
   7 // Copyright (c) 2011 Jérémie "garuma" Laval
   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 using System;
  28 using System.Linq;
  29 using System.Threading;
  30 using System.Threading.Tasks;
  31 using System.Threading.Tasks.Dataflow;
  32
  33 using NUnit.Framework;
  34
  35 namespace MonoTests.System.Threading.Tasks.Dataflow
  36 {
  37         [TestFixture]
  38         public class CompletionTest
  39         {
  40                 [Test]
  41                 public void WithElementsStillLingering ()
  42                 {
  43                         var block = new BufferBlock<int> ();
  44                         Assert.IsTrue (block.Post (42));
  45                         block.Complete ();
  46
  47                         Assert.IsFalse (block.Completion.Wait (100));
  48                         Assert.IsFalse (block.Completion.IsCompleted);
  49                         Assert.AreEqual (TaskStatus.WaitingForActivation, block.Completion.Status);
  50
  51                         Assert.AreEqual (42, block.Receive ());
  52
  53                         Assert.IsTrue (block.Completion.Wait (100));
  54                         Assert.IsTrue (block.Completion.IsCompleted);
  55                         Assert.AreEqual (TaskStatus.RanToCompletion, block.Completion.Status);
  56                 }
  57
  58                 [Test]
  59                 public void EmptyAfterReceive ()
  60                 {
  61                         var block = new BufferBlock<int> ();
  62                         Assert.IsTrue (block.Post (42));
  63                         block.Complete ();
  64
  65                         Assert.IsFalse (block.Completion.Wait (100));
  66                         Assert.IsFalse (block.Completion.IsCompleted);
  67                         Assert.AreEqual (TaskStatus.WaitingForActivation, block.Completion.Status);
  68
  69                         block.Receive ();
  70
  71                         Assert.IsTrue (block.Completion.Wait (100));
  72                         Assert.IsTrue (block.Completion.IsCompleted);
  73                         Assert.AreEqual (TaskStatus.RanToCompletion, block.Completion.Status);
  74                 }
  75
  76                 [Test]
  77                 public void WithElementsStillLingeringButFaulted ()
  78                 {
  79                         var block = new BufferBlock<int> ();
  80                         Assert.IsTrue (block.Post (42));
  81                         ((IDataflowBlock)block).Fault (new Exception ());
  82
  83                         Assert.Throws<AggregateException> (() => block.Completion.Wait (100));
  84                         Assert.IsTrue (block.Completion.IsCompleted);
  85                         Assert.AreEqual (TaskStatus.Faulted, block.Completion.Status);
  86                         Assert.IsFalse (block.Post (43));
  87                 }
  88         }
  89 }