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

   1 //
   2 // TimerTest.cs - NUnit test cases for System.Threading.Timer
   3 //
   4 // Author:
   5 //   Zoltan Varga (vargaz@freemail.hu)
   6 //
   7 // (C) 2004 Novell, Inc (http://www.novell.com)
   8 //
   9
  10 using NUnit.Framework;
  11 using System;
  12 using System.Threading;
  13
  14 namespace MonoTests.System.Threading {
  15
  16         [TestFixture]
  17         public class TimerTest : Assertion {
  18
  19                 public int counter;
  20
  21                 private void Callback (object foo) {
  22                         counter ++;
  23                 }
  24
  25                 // Doesn't work when I do a full run #72535
  26                 [Category("NotWorking")]
  27                 public void TestDueTime ()
  28                 {
  29                         counter = 0;
  30                         Timer t = new Timer (new TimerCallback (Callback), null, 200, Timeout.Infinite);
  31                         Thread.Sleep (50);
  32                         AssertEquals ("t0", 0, counter);
  33                         Thread.Sleep (200);
  34                         AssertEquals ("t1", 1, counter);
  35                         Thread.Sleep (500);
  36                         AssertEquals ("t2", 1, counter);
  37
  38                         t.Change (10, 10);
  39                         Thread.Sleep (500);
  40                         Assert ("t3", counter > 20);
  41                         t.Dispose ();
  42                 }
  43
  44                 public void TestChange ()
  45                 {
  46                         counter = 0;
  47                         Timer t = new Timer (new TimerCallback (Callback), null, 1, 1);
  48                         Thread.Sleep (500);
  49                         int c = counter;
  50                         Assert ("t1", c > 20);
  51                         t.Change (100, 100);
  52                         Thread.Sleep (500);
  53                         Assert ("t2", counter <= c + 6);
  54                         t.Dispose ();
  55                 }
  56
  57                 public void TestZeroDueTime () {
  58                         counter = 0;
  59
  60                         Timer t = new Timer (new TimerCallback (Callback), null, 0, Timeout.Infinite);
  61                         Thread.Sleep (100);
  62                         AssertEquals (1, counter);
  63                         t.Change (0, Timeout.Infinite);
  64                         Thread.Sleep (100);
  65                         AssertEquals (2, counter);
  66                         t.Dispose ();
  67                 }
  68
  69                 public void TestDispose ()
  70                 {
  71                         counter = 0;
  72                         Timer t = new Timer (new TimerCallback (CallbackTestDispose), null, 10, 10);
  73                         Thread.Sleep (200);
  74                         t.Dispose ();
  75                         Thread.Sleep (20);
  76                         int c = counter;
  77                         Assert (counter > 5);
  78                         Thread.Sleep (200);
  79                         AssertEquals (c, counter);
  80                 }
  81
  82                 private void CallbackTestDispose (object foo) {
  83                         counter ++;
  84                 }
  85
  86                 Timer t1;
  87                 public void TestDisposeOnCallback () {
  88                         counter = 0;
  89                         t1 = new Timer (new TimerCallback (CallbackTestDisposeOnCallback), null, 0, 10);
  90                         Thread.Sleep (200);
  91                         AssertNull (t1);
  92
  93                         counter = 2;
  94                         t1 = new Timer (new TimerCallback (CallbackTestDisposeOnCallback), null, 50, 0);
  95                         Thread.Sleep (200);
  96                         AssertNull (t1);
  97                 }
  98
  99                 private void CallbackTestDisposeOnCallback (object foo)
 100                 {
 101                         if (++counter == 3) {
 102                                 t1.Dispose ();
 103                                 t1 = null;
 104                         }
 105                 }
 106         }
 107 }