mcs/class/System/Test/System.Collections.Concurrent/BlockingCollectionTests.cs

   1 #if NET_4_0
   2 // BlockingCollectionTests.cs
   3 //
   4 // Copyright (c) 2008 Jérémie "Garuma" Laval
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining a copy
   7 // of this software and associated documentation files (the "Software"), to deal
   8 // in the Software without restriction, including without limitation the rights
   9 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 // copies of the Software, and to permit persons to whom the Software is
  11 // furnished to do so, subject to the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be included in
  14 // all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 // THE SOFTWARE.
  23 //
  24 //
  25
  26 using System;
  27 using System.Threading;
  28 using System.Collections.Concurrent;
  29 using System.Collections.Generic;
  30 using System.Threading.Tasks;
  31
  32 using NUnit.Framework;
  33
  34 namespace MonoTests.System.Collections.Concurrent
  35 {
  36         [TestFixture()]
  37         public class BlockingCollectionTests
  38         {
  39                 BlockingCollection<int> defaultCollection;
  40                 BlockingCollection<int> boundedCollection;
  41
  42                 [SetUpAttribute]
  43                 public void Setup()
  44                 {
  45                         defaultCollection = new BlockingCollection<int>();
  46                         boundedCollection = new BlockingCollection<int>(10);
  47                 }
  48
  49                 [TestAttribute]
  50                 public void DefaultAddTestCase()
  51                 {
  52                         defaultCollection.Add(1);
  53                         defaultCollection.Add(2);
  54                         Assert.AreEqual(2, defaultCollection.Count, "#1");
  55
  56                 }
  57
  58                 [TestAttribute]
  59                 public void BoundedAddTestCase()
  60                 {
  61                         boundedCollection.Add(1);
  62                         boundedCollection.Add(2);
  63                         Assert.AreEqual(2, boundedCollection.Count, "#1");
  64                 }
  65
  66                 [TestAttribute]
  67                 public void BoundedIsFullTestCase()
  68                 {
  69                         boundedCollection.Add(1);
  70                         boundedCollection.Add(2);
  71                         boundedCollection.Add(3);
  72                         boundedCollection.Add(4);
  73                         boundedCollection.Add(5);
  74                         boundedCollection.Add(6);
  75                         boundedCollection.Add(7);
  76                         boundedCollection.Add(8);
  77                         boundedCollection.Add(9);
  78                         boundedCollection.Add(10);
  79                         Assert.AreEqual(boundedCollection.BoundedCapacity, boundedCollection.Count, "#1");
  80                 }
  81
  82                 [TestAttribute]
  83                 public void TakeTestCase()
  84                 {
  85                         defaultCollection.Add(1);
  86                         defaultCollection.Add(2);
  87                         boundedCollection.Add(1);
  88                         boundedCollection.Add(2);
  89
  90                         int value = defaultCollection.Take();
  91                         Assert.AreEqual(1, value, "#1");
  92                         value = boundedCollection.Take();
  93                         Assert.AreEqual(1, value, "#2");
  94                 }
  95
  96                 [TestAttribute, ExpectedExceptionAttribute(typeof(InvalidOperationException))]
  97                 public void DefaultAddCompletedTestCase()
  98                 {
  99                         defaultCollection.Add(1);
 100                         defaultCollection.Add(2);
 101                         defaultCollection.CompleteAdding();
 102                         Assert.IsTrue(defaultCollection.IsAddingCompleted, "#1");
 103
 104                         defaultCollection.Add(3);
 105                 }
 106
 107                 [TestAttribute, ExpectedExceptionAttribute(typeof(InvalidOperationException))]
 108                 public void BoundedAddCompletedTestCase()
 109                 {
 110                         boundedCollection.Add(1);
 111                         boundedCollection.Add(2);
 112                         boundedCollection.Add(3);
 113                         boundedCollection.Add(4);
 114                         boundedCollection.Add(5);
 115                         boundedCollection.Add(6);
 116                         boundedCollection.Add(7);
 117                         boundedCollection.Add(8);
 118                         boundedCollection.Add(9);
 119                         boundedCollection.Add(10);
 120                         boundedCollection.CompleteAdding();
 121                         Assert.IsTrue(boundedCollection.IsAddingCompleted, "#1");
 122
 123                         boundedCollection.Add(3);
 124                 }
 125
 126                 [TestAttribute]
 127                 public void IsCompletedTestCase()
 128                 {
 129                         defaultCollection.Add(1);
 130                         defaultCollection.Add(2);
 131
 132                         defaultCollection.CompleteAdding();
 133                         Assert.IsFalse(defaultCollection.IsCompleted, "#3");
 134
 135                         defaultCollection.Take();
 136                         defaultCollection.Take();
 137
 138                         Assert.IsTrue(defaultCollection.IsAddingCompleted, "#1");
 139                         Assert.AreEqual(0, defaultCollection.Count, "#2");
 140                         Assert.IsTrue(defaultCollection.IsCompleted, "#4");
 141                 }
 142
 143                 [TestAttribute]
 144                 public void IsCompletedEmptyTestCase ()
 145                 {
 146                         defaultCollection.CompleteAdding ();
 147                         Assert.IsTrue (defaultCollection.IsCompleted);
 148                 }
 149
 150                 [TestAttribute]
 151                 public void ConsumingEnumerableTestCase()
 152                 {
 153                         defaultCollection.Add(1);
 154                         defaultCollection.Add(2);
 155                         defaultCollection.Add(3);
 156                         defaultCollection.Add(4);
 157                         defaultCollection.Add(5);
 158                         defaultCollection.Add(6);
 159                         defaultCollection.CompleteAdding ();
 160
 161                         IEnumerable<int> enumerable = defaultCollection.GetConsumingEnumerable();
 162                         Assert.IsNotNull(enumerable, "#1");
 163                         int i = 1;
 164                         foreach (int j in enumerable) {
 165                                 int temp = i++;
 166                                 Assert.AreEqual(temp, j, "#" + temp);
 167                         }
 168                         Assert.AreEqual(0, defaultCollection.Count, "#" + i);
 169                 }
 170
 171                 [TestAttribute]
 172                 public void TryTakeTestCase ()
 173                 {
 174                         defaultCollection.Add (1);
 175
 176                         int value = default (int);
 177                         bool firstTake = defaultCollection.TryTake (out value);
 178                         int value2 = default (int);
 179                         bool secondTake = defaultCollection.TryTake (out value2);
 180
 181                         Assert.AreEqual (1, value);
 182                         Assert.IsTrue (firstTake);
 183                         Assert.AreEqual (default (int), value2);
 184                         Assert.IsFalse (secondTake);
 185                 }
 186
 187                 [Test]
 188                 public void EmptyTryTakeWithTimeout ()
 189                 {
 190                         object o = null;
 191                         var queue = new BlockingCollection<object> ();
 192                         bool success = queue.TryTake (out o, 500);
 193                         Assert.IsNull (o);
 194                         Assert.IsFalse (success);
 195                 }
 196
 197                 [Test]
 198                 public void TakeAnyFromSecondCollection ()
 199                 {
 200                         var a = new BlockingCollection<string> ();
 201                         var b = new BlockingCollection<string> ();
 202                         var arr = new [] { a, b };
 203                         string res = null;
 204
 205                         Task<int> t = Task.Factory.StartNew (() => BlockingCollection<string>.TakeFromAny (arr, out res));
 206                         a.Add ("foo");
 207                         Assert.AreEqual (0, t.Result, "#1");
 208                         Assert.AreEqual ("foo", res, "#2");
 209
 210                         t = Task.Factory.StartNew (() => BlockingCollection<string>.TakeFromAny (arr, out res));
 211                         b.Add ("bar");
 212                         Assert.AreEqual (1, t.Result, "#3");
 213                         Assert.AreEqual ("bar", res, "#4");
 214                 }
 215
 216                 [Test]
 217                 public void TakeAnyCancellable ()
 218                 {
 219                         var a = new BlockingCollection<string> ();
 220                         var b = new BlockingCollection<string> ();
 221                         var arr = new [] { a, b };
 222                         var cts = new CancellationTokenSource ();
 223                         string res = null;
 224
 225                         Task<int> t = Task.Factory.StartNew (() => BlockingCollection<string>.TakeFromAny (arr, out res, cts.Token));
 226                         Thread.Sleep (100);
 227                         a.Add ("foo");
 228                         Assert.AreEqual (0, t.Result, "#1");
 229                         Assert.AreEqual ("foo", res, "#2");
 230
 231                         t = Task.Factory.StartNew (() => BlockingCollection<string>.TakeFromAny (arr, out res, cts.Token));
 232                         Thread.Sleep (100);
 233                         b.Add ("bar");
 234                         Assert.AreEqual (1, t.Result, "#3");
 235                         Assert.AreEqual ("bar", res, "#4");
 236
 237                         t = Task.Factory.StartNew (() => {
 238                                 try {
 239                                         return BlockingCollection<string>.TakeFromAny (arr, out res, cts.Token);
 240                                 } catch (OperationCanceledException WE_GOT_CANCELED) {
 241                                         res = "canceled";
 242                                         return -10;
 243                                 }
 244                         });
 245
 246                         cts.Cancel ();
 247                         Assert.AreEqual (-10, t.Result, "#5");
 248                         Assert.AreEqual ("canceled", res, "#6");
 249                 }
 250         }
 251 }
 252 #endif