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

   1 // BlockingCollectionTests.cs
   2 //
   3 // Copyright (c) 2008 Jérémie "Garuma" Laval
   4 //
   5 // Permission is hereby granted, free of charge, to any person obtaining a copy
   6 // of this software and associated documentation files (the "Software"), to deal
   7 // in the Software without restriction, including without limitation the rights
   8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9 // copies of the Software, and to permit persons to whom the Software is
  10 // furnished to do so, subject to the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be included in
  13 // all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  21 // THE SOFTWARE.
  22 //
  23 //
  24
  25 using System;
  26 using System.Threading;
  27 using System.Collections.Concurrent;
  28 using System.Collections.Generic;
  29 using System.Threading.Tasks;
  30
  31 using NUnit.Framework;
  32
  33 namespace MonoTests.System.Collections.Concurrent
  34 {
  35         [TestFixture()]
  36         public class BlockingCollectionTests
  37         {
  38                 BlockingCollection<int> defaultCollection;
  39                 BlockingCollection<int> boundedCollection;
  40
  41                 [SetUpAttribute]
  42                 public void Setup()
  43                 {
  44                         defaultCollection = new BlockingCollection<int>();
  45                         boundedCollection = new BlockingCollection<int>(10);
  46                 }
  47
  48                 [TestAttribute]
  49                 public void DefaultAddTestCase()
  50                 {
  51                         defaultCollection.Add(1);
  52                         defaultCollection.Add(2);
  53                         Assert.AreEqual(2, defaultCollection.Count, "#1");
  54
  55                 }
  56
  57                 [TestAttribute]
  58                 public void BoundedAddTestCase()
  59                 {
  60                         boundedCollection.Add(1);
  61                         boundedCollection.Add(2);
  62                         Assert.AreEqual(2, boundedCollection.Count, "#1");
  63                 }
  64
  65                 [TestAttribute]
  66                 public void BoundedIsFullTestCase()
  67                 {
  68                         boundedCollection.Add(1);
  69                         boundedCollection.Add(2);
  70                         boundedCollection.Add(3);
  71                         boundedCollection.Add(4);
  72                         boundedCollection.Add(5);
  73                         boundedCollection.Add(6);
  74                         boundedCollection.Add(7);
  75                         boundedCollection.Add(8);
  76                         boundedCollection.Add(9);
  77                         boundedCollection.Add(10);
  78                         Assert.AreEqual(boundedCollection.BoundedCapacity, boundedCollection.Count, "#1");
  79                 }
  80
  81                 [TestAttribute]
  82                 public void TakeTestCase()
  83                 {
  84                         defaultCollection.Add(1);
  85                         defaultCollection.Add(2);
  86                         boundedCollection.Add(1);
  87                         boundedCollection.Add(2);
  88
  89                         int value = defaultCollection.Take();
  90                         Assert.AreEqual(1, value, "#1");
  91                         value = boundedCollection.Take();
  92                         Assert.AreEqual(1, value, "#2");
  93                 }
  94
  95                 [TestAttribute, ExpectedExceptionAttribute(typeof(InvalidOperationException))]
  96                 public void DefaultAddCompletedTestCase()
  97                 {
  98                         defaultCollection.Add(1);
  99                         defaultCollection.Add(2);
 100                         defaultCollection.CompleteAdding();
 101                         Assert.IsTrue(defaultCollection.IsAddingCompleted, "#1");
 102
 103                         defaultCollection.Add(3);
 104                 }
 105
 106                 [TestAttribute, ExpectedExceptionAttribute(typeof(InvalidOperationException))]
 107                 public void BoundedAddCompletedTestCase()
 108                 {
 109                         boundedCollection.Add(1);
 110                         boundedCollection.Add(2);
 111                         boundedCollection.Add(3);
 112                         boundedCollection.Add(4);
 113                         boundedCollection.Add(5);
 114                         boundedCollection.Add(6);
 115                         boundedCollection.Add(7);
 116                         boundedCollection.Add(8);
 117                         boundedCollection.Add(9);
 118                         boundedCollection.Add(10);
 119                         boundedCollection.CompleteAdding();
 120                         Assert.IsTrue(boundedCollection.IsAddingCompleted, "#1");
 121
 122                         boundedCollection.Add(3);
 123                 }
 124
 125                 [TestAttribute]
 126                 public void IsCompletedTestCase()
 127                 {
 128                         defaultCollection.Add(1);
 129                         defaultCollection.Add(2);
 130
 131                         defaultCollection.CompleteAdding();
 132                         Assert.IsFalse(defaultCollection.IsCompleted, "#3");
 133
 134                         defaultCollection.Take();
 135                         defaultCollection.Take();
 136
 137                         Assert.IsTrue(defaultCollection.IsAddingCompleted, "#1");
 138                         Assert.AreEqual(0, defaultCollection.Count, "#2");
 139                         Assert.IsTrue(defaultCollection.IsCompleted, "#4");
 140                 }
 141
 142                 [TestAttribute]
 143                 public void IsCompletedEmptyTestCase ()
 144                 {
 145                         defaultCollection.CompleteAdding ();
 146                         Assert.IsTrue (defaultCollection.IsCompleted);
 147                 }
 148
 149                 [TestAttribute]
 150                 public void ConsumingEnumerableTestCase()
 151                 {
 152                         defaultCollection.Add(1);
 153                         defaultCollection.Add(2);
 154                         defaultCollection.Add(3);
 155                         defaultCollection.Add(4);
 156                         defaultCollection.Add(5);
 157                         defaultCollection.Add(6);
 158                         defaultCollection.CompleteAdding ();
 159
 160                         IEnumerable<int> enumerable = defaultCollection.GetConsumingEnumerable();
 161                         Assert.IsNotNull(enumerable, "#1");
 162                         int i = 1;
 163                         foreach (int j in enumerable) {
 164                                 int temp = i++;
 165                                 Assert.AreEqual(temp, j, "#" + temp);
 166                         }
 167                         Assert.AreEqual(0, defaultCollection.Count, "#" + i);
 168                 }
 169
 170                 [TestAttribute]
 171                 public void TryTakeTestCase ()
 172                 {
 173                         defaultCollection.Add (1);
 174
 175                         int value = default (int);
 176                         bool firstTake = defaultCollection.TryTake (out value);
 177                         int value2 = default (int);
 178                         bool secondTake = defaultCollection.TryTake (out value2);
 179
 180                         Assert.AreEqual (1, value);
 181                         Assert.IsTrue (firstTake);
 182                         Assert.AreEqual (default (int), value2);
 183                         Assert.IsFalse (secondTake);
 184                 }
 185
 186                 [Test]
 187                 public void EmptyTryTakeWithTimeout ()
 188                 {
 189                         object o = null;
 190                         var queue = new BlockingCollection<object> ();
 191                         bool success = queue.TryTake (out o, 500);
 192                         Assert.IsNull (o);
 193                         Assert.IsFalse (success);
 194                 }
 195
 196                 [Test]
 197                 public void TakeAnyFromSecondCollection ()
 198                 {
 199                         var a = new BlockingCollection<string> ();
 200                         var b = new BlockingCollection<string> ();
 201                         var arr = new [] { a, b };
 202                         string res = null;
 203
 204                         Task<int> t = Task.Factory.StartNew (() => BlockingCollection<string>.TakeFromAny (arr, out res));
 205                         a.Add ("foo");
 206                         Assert.AreEqual (0, t.Result, "#1");
 207                         Assert.AreEqual ("foo", res, "#2");
 208
 209                         t = Task.Factory.StartNew (() => BlockingCollection<string>.TakeFromAny (arr, out res));
 210                         b.Add ("bar");
 211                         Assert.AreEqual (1, t.Result, "#3");
 212                         Assert.AreEqual ("bar", res, "#4");
 213                 }
 214
 215                 [Test]
 216                 public void TakeAnyCancellable ()
 217                 {
 218                         var a = new BlockingCollection<string> ();
 219                         var b = new BlockingCollection<string> ();
 220                         var arr = new [] { a, b };
 221                         var cts = new CancellationTokenSource ();
 222                         string res = null;
 223
 224                         Task<int> t = Task.Factory.StartNew (() => BlockingCollection<string>.TakeFromAny (arr, out res, cts.Token));
 225                         Thread.Sleep (100);
 226                         a.Add ("foo");
 227                         Assert.AreEqual (0, t.Result, "#1");
 228                         Assert.AreEqual ("foo", res, "#2");
 229
 230                         t = Task.Factory.StartNew (() => BlockingCollection<string>.TakeFromAny (arr, out res, cts.Token));
 231                         Thread.Sleep (100);
 232                         b.Add ("bar");
 233                         Assert.AreEqual (1, t.Result, "#3");
 234                         Assert.AreEqual ("bar", res, "#4");
 235
 236                         t = Task.Factory.StartNew (() => {
 237                                 try {
 238                                         return BlockingCollection<string>.TakeFromAny (arr, out res, cts.Token);
 239                                 } catch (OperationCanceledException) {
 240                                         res = "canceled";
 241                                         return -10;
 242                                 }
 243                         });
 244
 245                         cts.Cancel ();
 246                         Assert.AreEqual (-10, t.Result, "#5");
 247                         Assert.AreEqual ("canceled", res, "#6");
 248                 }
 249
 250                 [Test, ExpectedException (typeof(OperationCanceledException))]
 251                 public void BoundedAddLimit ()
 252                 {
 253                         const int elNumber = 5;
 254
 255                         var c = new BlockingCollection <int> (elNumber);
 256                         var token = new CancellationTokenSource (100);
 257
 258                         for (var i = 0; i < elNumber + 1; i++) {
 259                                 c.Add (1, token.Token);
 260                         }
 261                 }
 262
 263                 [Test]
 264                 public void AddAnyCancellable ()
 265                 {
 266                         const int elNumber = 5;
 267                         const int colNumber = 5;
 268
 269                         var cols = new BlockingCollection <int> [colNumber];
 270                         for (var i = 0; i < colNumber; i++) {
 271                                 cols[i] = new BlockingCollection <int> (elNumber);
 272                         }
 273
 274                         var token = new CancellationTokenSource (100);
 275                         for (var i = 0; i < colNumber * elNumber; i++) {
 276                                 BlockingCollection <int>.AddToAny (cols, 1, token.Token);
 277                         }
 278
 279                         foreach (var col in cols) {
 280                                 Assert.AreEqual (elNumber, col.Count);
 281                         }
 282                 }
 283         }
 284 }