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

   1 // MutexTest.cs - NUnit Test Cases for System.Threading.Mutex\r
   2 //\r
   3 // Eduardo Garcia Cebollero <kiwnix@yahoo.es>\r
   4 //\r
   5 // (C) Eduardo Garcia Cebollero\r
   6 // \r
   7 \r
   8 using System;\r
   9 using System.Threading;\r
  10 \r
  11 using NUnit.Framework;\r
  12 \r
  13 namespace MonoTests.System.Threading\r
  14 {\r
  15         [TestFixture]\r
  16         public class MutexTest\r
  17         {\r
  18                 //Auxiliary Classes (Future Threads)\r
  19                 private class ConcClass\r
  20                 {\r
  21                         public int id;\r
  22                         public Mutex mut;\r
  23                         public ConcClass(int id,Mutex mut)\r
  24                         {\r
  25                                 this.id = id;\r
  26                                 this.mut = mut;\r
  27                         }\r
  28                         public void Wait()\r
  29                         {\r
  30                                 mut.WaitOne();\r
  31                         }\r
  32                         public void Signal()\r
  33                         {\r
  34                                 mut.ReleaseMutex();\r
  35                         }\r
  36                 }\r
  37                 private class ConcClassLoop: ConcClass\r
  38                 {\r
  39                         public int marker;\r
  40 \r
  41                         public ConcClassLoop(int id,Mutex mut) : \r
  42                                 base(id,mut) \r
  43                                 {\r
  44                                         this.marker = 0;\r
  45                                 }\r
  46                         \r
  47                         public void WithoutWait()\r
  48                         {\r
  49                                 this.marker = this.id;\r
  50                                 this.Signal();\r
  51                         }\r
  52 \r
  53 \r
  54                         public void Loop()\r
  55                         {\r
  56                                 while (this.marker<100)\r
  57                                 {\r
  58                                         this.Wait();\r
  59                                         this.marker++;\r
  60                                         this.Signal();\r
  61                                 }\r
  62                         }\r
  63 \r
  64                         public void WaitAndForget()\r
  65                         {\r
  66                                 this.Wait();\r
  67                                 this.marker = id;\r
  68                         }\r
  69                         public void WaitAndWait()\r
  70                         {\r
  71                                 mut.WaitOne();\r
  72                                 this.marker = this.id;\r
  73                                 mut.WaitOne();\r
  74                                 this.marker = this.id+1;\r
  75                         }\r
  76                 }\r
  77 \r
  78                 [Test]\r
  79                 public void TestCtor1()\r
  80                 {\r
  81                         Mutex Sem = new Mutex();\r
  82                 }\r
  83 \r
  84 // These tests produce mutex release errors\r
  85 /**\r
  86                 [Test]\r
  87                 public void TestCtorDefaultValue()\r
  88                 {\r
  89                         Mutex Sem = new Mutex();\r
  90                         ConcClassLoop class1 = new ConcClassLoop(1,Sem);\r
  91                         Thread thread1 = new Thread(new ThreadStart(class1.WithoutWait));\r
  92                         thread1.Start();\r
  93                         while(thread1.IsAlive);\r
  94                         AssertEquals("#02 The default value of The mutex wrong set:",class1.id,class1.marker);\r
  95                 }\r
  96 \r
  97                 [Test]\r
  98                 public void TestCtorCtor2()\r
  99                 {\r
 100                         Mutex Sem = new Mutex(false);\r
 101                         ConcClassLoop class1 = new ConcClassLoop(1,Sem);\r
 102                         Thread thread1 = new Thread(new ThreadStart(class1.WithoutWait));\r
 103                         thread1.Start();\r
 104                         while(thread1.IsAlive);\r
 105                         AssertEquals("#03 The value of The mutex wrong set:",class1.id,class1.marker);\r
 106                 }\r
 107         \r
 108                 [Test]\r
 109                 public void TestCtorCtor3()\r
 110                 {\r
 111                         Mutex Sem = new Mutex(true);\r
 112                         ConcClassLoop class1 = new ConcClassLoop(1,Sem);\r
 113                         Thread thread1 = new Thread(new ThreadStart(class1.WithoutWait));\r
 114                         thread1.Start();\r
 115                         while(thread1.IsAlive);\r
 116                         AssertEquals("#04 The default value of The mutex wrong set:",class1.id,class1.marker);\r
 117                 }\r
 118 */\r
 119 \r
 120                 // Hangs #72534\r
 121                 [Test]\r
 122                 [Category("NotWorking")]\r
 123                 public void TestWaitAndSignal1()\r
 124                 {\r
 125                         Mutex Sem = new Mutex (false);\r
 126                         ConcClassLoop class1 = new ConcClassLoop (1, Sem);\r
 127                         Thread thread1 = new Thread (new ThreadStart (class1.Loop));\r
 128                         try {\r
 129                                 thread1.Start ();\r
 130                                 TestUtil.WaitForNotAlive (thread1, "");\r
 131                                 Assert.AreEqual (100, class1.marker);\r
 132                         } finally {\r
 133                                 thread1.Abort ();\r
 134                         }\r
 135                 }\r
 136 \r
 137                 // Hangs\r
 138                 [Test]\r
 139                 [Category("NotWorking")]\r
 140                 [Ignore ("It hangs and breaks the domain which runs nunit-console itself")]\r
 141                 public void TestWaitAndFoget1()\r
 142                 {\r
 143                         Mutex Sem = new Mutex(false);\r
 144                         ConcClassLoop class1 = new ConcClassLoop(1,Sem);\r
 145                         ConcClassLoop class2 = new ConcClassLoop(2,Sem);\r
 146                         Thread thread1 = new Thread(new ThreadStart(class1.WaitAndForget));\r
 147                         Thread thread2 = new Thread(new ThreadStart(class2.WaitAndForget));\r
 148                         \r
 149                         try {\r
 150                                 thread1.Start();\r
 151                                 TestUtil.WaitForNotAlive (thread1, "t1");\r
 152         \r
 153                                 thread2.Start();\r
 154                                 TestUtil.WaitForNotAlive (thread2, "t2");\r
 155                         \r
 156                                 Assert.AreEqual (class2.id, class2.marker);\r
 157                         } finally {\r
 158                                 thread1.Abort ();\r
 159                                 thread2.Abort ();\r
 160                         }\r
 161                 }\r
 162 \r
 163                 [Test]\r
 164                 [Category("TargetJvmNotSupported")] // IntPtr native handles are not supported for TARGET_JVM.\r
 165                 public void TestHandle()\r
 166                 {\r
 167                         Mutex Sem = new Mutex();\r
 168                         IntPtr Handle = Sem.Handle;\r
 169                 }\r
 170 \r
 171                 [Test] // bug #79358\r
 172                 [Category ("NotWorking")]\r
 173                 public void DoubleRelease ()\r
 174                 {\r
 175                         Mutex mutex = new Mutex ();\r
 176                         mutex.WaitOne ();\r
 177                         mutex.ReleaseMutex ();\r
 178 \r
 179                         try {\r
 180                                 mutex.ReleaseMutex ();\r
 181                                 Assert.Fail ("#1");\r
 182                         } catch (ApplicationException ex) {\r
 183                                 Assert.AreEqual (typeof (ApplicationException), ex.GetType (), "#2");\r
 184                         }\r
 185                 }\r
 186         }\r
 187 }\r