mcs/class/corlib/Test/System.Threading/ThreadLocalTests.cs

   1 #if NET_4_0
   2 //
   3 // ThreadLazyTests.cs
   4 //
   5 // Author:
   6 //       Jérémie "Garuma" Laval <jeremie.laval@gmail.com>
   7 //
   8 // Copyright (c) 2009 Jérémie "Garuma" Laval
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining a copy
  11 // of this software and associated documentation files (the "Software"), to deal
  12 // in the Software without restriction, including without limitation the rights
  13 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  14 // copies of the Software, and to permit persons to whom the Software is
  15 // furnished to do so, subject to the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be included in
  18 // all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  23 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  25 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  26 // THE SOFTWARE.
  27
  28 using System;
  29 using System.Threading;
  30
  31 using NUnit;
  32 using NUnit.Framework;
  33 #if !MOBILE
  34 using NUnit.Framework.SyntaxHelpers;
  35 #endif
  36
  37 namespace MonoTests.System.Threading
  38 {
  39         [TestFixtureAttribute]
  40         public class ThreadLocalTests
  41         {
  42                 ThreadLocal<int> threadLocal;
  43                 int nTimes;
  44
  45                 [SetUp]
  46                 public void Setup ()
  47                 {
  48                         nTimes = 0;
  49                         threadLocal = new ThreadLocal<int> (() => { Interlocked.Increment (ref nTimes); return 42; });
  50                 }
  51
  52                 [Test]
  53                 public void SingleThreadTest ()
  54                 {
  55                         AssertThreadLocal ();
  56                 }
  57
  58                 [Test]
  59                 public void ThreadedTest ()
  60                 {
  61                         AssertThreadLocal ();
  62
  63                         Thread t = new Thread ((object o) => { Interlocked.Decrement (ref nTimes); AssertThreadLocal (); });
  64                         t.Start ();
  65                         t.Join ();
  66                 }
  67
  68                 [Test]
  69                 public void InitializeThrowingTest ()
  70                 {
  71                         int callTime = 0;
  72                         threadLocal = new ThreadLocal<int> (() => {
  73                                         Interlocked.Increment (ref callTime);
  74                                         throw new ApplicationException ("foo");
  75                                 });
  76
  77                         Exception exception = null;
  78
  79                         try {
  80                                 var foo = threadLocal.Value;
  81                         } catch (Exception e) {
  82                                 exception = e;
  83                         }
  84
  85                         Assert.IsNotNull (exception, "#1");
  86                         Assert.That (exception, Is.TypeOf (typeof (ApplicationException)), "#2");
  87                         Assert.AreEqual (1, callTime, "#3");
  88
  89                         exception = null;
  90
  91                         try {
  92                                 var foo = threadLocal.Value;
  93                         } catch (Exception e) {
  94                                 exception = e;
  95                         }
  96
  97                         Assert.IsNotNull (exception, "#4");
  98                         Assert.That (exception, Is.TypeOf (typeof (ApplicationException)), "#5");
  99                         Assert.AreEqual (1, callTime, "#6");
 100                 }
 101
 102                 [Test, ExpectedException (typeof (InvalidOperationException))]
 103                 [Category ("NotDotNet")] // nunit results in stack overflow
 104                 public void MultipleReferenceToValueTest ()
 105                 {
 106                         threadLocal = new ThreadLocal<int> (() => threadLocal.Value + 1);
 107
 108                         var value = threadLocal.Value;
 109                 }
 110
 111                 [Test]
 112                 public void DefaultThreadLocalInitTest ()
 113                 {
 114                         var local = new ThreadLocal<DateTime> ();
 115                         var local2 = new ThreadLocal<object> ();
 116
 117                         Assert.AreEqual (default (DateTime), local.Value);
 118                         Assert.AreEqual (default (object), local2.Value);
 119                 }
 120
 121                 [Test, ExpectedException (typeof (ObjectDisposedException))]
 122                 public void DisposedOnValueTest ()
 123                 {
 124                         var tl = new ThreadLocal<int> ();
 125                         tl.Dispose ();
 126                         var value = tl.Value;
 127                 }
 128
 129                 [Test, ExpectedException (typeof (ObjectDisposedException))]
 130                 public void DisposedOnIsValueCreatedTest ()
 131                 {
 132                         var tl = new ThreadLocal<int> ();
 133                         tl.Dispose ();
 134                         var value = tl.IsValueCreated;
 135                 }
 136
 137                 [Test]
 138                 public void PerThreadException ()
 139                 {
 140                         int callTime = 0;
 141                         threadLocal = new ThreadLocal<int> (() => {
 142                                         if (callTime == 1)
 143                                                 throw new ApplicationException ("foo");
 144                                         Interlocked.Increment (ref callTime);
 145                                         return 43;
 146                                 });
 147
 148                         Exception exception = null;
 149
 150                         var foo = threadLocal.Value;
 151                         bool thread_value_created = false;
 152                         Assert.AreEqual (43, foo, "#3");
 153                         Thread t = new Thread ((object o) => {
 154                                 try {
 155                                         var foo2 = threadLocal.Value;
 156                                 } catch (Exception e) {
 157                                         exception = e;
 158                                 }
 159                                 // should be false and not throw
 160                                 thread_value_created = threadLocal.IsValueCreated;
 161                         });
 162                         t.Start ();
 163                         t.Join ();
 164                         Assert.AreEqual (false, thread_value_created, "#4");
 165                         Assert.IsNotNull (exception, "#5");
 166                         Assert.That (exception, Is.TypeOf (typeof (ApplicationException)), "#6");
 167                 }
 168
 169                 void AssertThreadLocal ()
 170                 {
 171                         Assert.IsFalse (threadLocal.IsValueCreated, "#1");
 172                         Assert.AreEqual (42, threadLocal.Value, "#2");
 173                         Assert.IsTrue (threadLocal.IsValueCreated, "#3");
 174                         Assert.AreEqual (42, threadLocal.Value, "#4");
 175                         Assert.AreEqual (1, nTimes, "#5");
 176                 }
 177         }
 178 }
 179 #endif