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>
   4 //\r
   5 // (C) Eduardo Garcia Cebollero\r
   6 // \r
   7 \r
   8 using NUnit.Framework;\r
   9 using System;\r
  10 using System.Threading;\r
  11 \r
  12 namespace MonoTests.System.Threading\r
  13 {\r
  14 \r
  15         public class MutexTest : TestCase \r
  16         {\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                 protected override void SetUp() {}\r
  79 \r
  80                 protected override void TearDown() {}\r
  81 \r
  82                 public void TestCtor1()\r
  83                 {\r
  84                         try\r
  85                         {\r
  86                                 Mutex Sem = new Mutex();\r
  87                         }\r
  88                         catch (Exception e)\r
  89                         {\r
  90                                 Fail("#01 Error Creating The Simple Mutex:" + e.ToString());\r
  91                         }\r
  92                 }\r
  93 \r
  94 // These tests produce mutex release errors\r
  95 /*\r
  96                 public void TestCtorDefaultValue()\r
  97                 {\r
  98                         Mutex Sem = new Mutex();\r
  99                         ConcClassLoop class1 = new ConcClassLoop(1,Sem);\r
 100                         Thread thread1 = new Thread(new ThreadStart(class1.WithoutWait));\r
 101                         thread1.Start();\r
 102                         while(thread1.IsAlive);\r
 103                         AssertEquals("#02 The default value of The mutex wrong set:",class1.id,class1.marker);\r
 104                 }\r
 105 \r
 106                 public void TestCtorCtor2()\r
 107                 {\r
 108                         Mutex Sem = new Mutex(false);\r
 109                         ConcClassLoop class1 = new ConcClassLoop(1,Sem);\r
 110                         Thread thread1 = new Thread(new ThreadStart(class1.WithoutWait));\r
 111                         thread1.Start();\r
 112                         while(thread1.IsAlive);\r
 113                         AssertEquals("#03 The value of The mutex wrong set:",class1.id,class1.marker);\r
 114                 }\r
 115                 \r
 116                 public void TestCtorCtor3()\r
 117                 {\r
 118                         Mutex Sem = new Mutex(true);\r
 119                         ConcClassLoop class1 = new ConcClassLoop(1,Sem);\r
 120                         Thread thread1 = new Thread(new ThreadStart(class1.WithoutWait));\r
 121                         thread1.Start();\r
 122                         while(thread1.IsAlive);\r
 123                         AssertEquals("#04 The default value of The mutex wrong set:",class1.id,class1.marker);\r
 124                 }\r
 125 \r
 126 */
 127
 128                 // Hangs #72534
 129                 [Category("NotWorking")]\r
 130                 public void TestWaitAndSignal1()\r
 131                 {\r
 132                         Mutex Sem = new Mutex(false);\r
 133                         ConcClassLoop class1 = new ConcClassLoop(1,Sem);\r
 134                         Thread thread1 = new Thread(new ThreadStart(class1.Loop));\r
 135                         try {\r
 136                                 thread1.Start();\r
 137                                 TestUtil.WaitForNotAlive (thread1, "");\r
 138                                 AssertEquals("#41 Mutex Worked InCorrecly:",100,class1.marker);\r
 139                         }\r
 140                         finally {\r
 141                                 thread1.Abort ();\r
 142                         }\r
 143                 }\r
 144
 145                 // Hangs
 146                 [Category("NotWorking")]
 147                 public void TestWaitAndFoget1()\r
 148                 {\r
 149                         Mutex Sem = new Mutex(false);\r
 150                         ConcClassLoop class1 = new ConcClassLoop(1,Sem);\r
 151                         ConcClassLoop class2 = new ConcClassLoop(2,Sem);\r
 152                         Thread thread1 = new Thread(new ThreadStart(class1.WaitAndForget));\r
 153                         Thread thread2 = new Thread(new ThreadStart(class2.WaitAndForget));\r
 154                         \r
 155                         try {\r
 156                                 thread1.Start();\r
 157                                 TestUtil.WaitForNotAlive (thread1, "t1");\r
 158         \r
 159                                 thread2.Start();\r
 160                                 TestUtil.WaitForNotAlive (thread2, "t2");\r
 161                         \r
 162                                 AssertEquals("#51 The Mutex Has been Kept after end of the thread:", class2.id,class2.marker);\r
 163                         }\r
 164                         finally {\r
 165                                 thread1.Abort ();\r
 166                                 thread2.Abort ();\r
 167                         }\r
 168                 }\r
 169 \r
 170                 public void TestHandle()\r
 171                 {\r
 172                         Mutex Sem = new Mutex();\r
 173                         try\r
 174                         {\r
 175                                 IntPtr Handle = Sem.Handle;\r
 176                         }\r
 177                         catch (Exception e)\r
 178                         {\r
 179                                 Fail("#61 Unexpected Exception accessing Sem.Handle:" + e.ToString());\r
 180                         }\r
 181                 }\r
 182         }\r
 183 }