mcs/tests/test-149.cs

   1 using System;
   2
   3 public delegate long MyDelegate (int a);
   4
   5 public interface X
   6 {
   7         event EventHandler Foo;
   8
   9         event MyDelegate TestEvent;
  10 }
  11
  12 public class Y : X
  13 {
  14         static int a = 0;
  15
  16         event EventHandler X.Foo {
  17                 add {
  18                 }
  19
  20                 remove {
  21                 }
  22         }
  23
  24         public event EventHandler Foo;
  25
  26         public event MyDelegate TestEvent;
  27
  28         public int Test ()
  29         {
  30                 X x = this;
  31
  32                 Foo += new EventHandler (callback1);
  33                 TestEvent += new MyDelegate (callback2);
  34
  35                 x.Foo += new EventHandler (callback3);
  36
  37                 if (a != 0)
  38                         return 1;
  39
  40                 Foo (this, new EventArgs ());
  41                 if (a != 1)
  42                         return 2;
  43
  44                 if (TestEvent (2) != 4)
  45                         return 3;
  46
  47                 if (a != 2)
  48                         return 4;
  49
  50                 return 0;
  51         }
  52
  53
  54         private static void callback1 (object sender, EventArgs e)
  55         {
  56                 a = 1;
  57         }
  58
  59         private static long callback2 (int b)
  60         {
  61                 a = b;
  62                 return a * a;
  63         }
  64
  65         private static void callback3 (object sender, EventArgs e)
  66         {
  67                 a = 3;
  68         }
  69 }
  70
  71 public class Z : Y
  72 {
  73         public delegate int SomeEventHandler();
  74         public static event SomeEventHandler BuildStarted;
  75
  76         static int a ()
  77         {
  78                 return 1;
  79         }
  80         public static int Main ()
  81         {
  82                 Z z = new Z ();
  83
  84                 int result = z.Test ();
  85
  86                 if (result != 0)
  87                         return result;
  88
  89                 if (BuildStarted != null) {
  90                         BuildStarted();
  91                 }
  92                 BuildStarted = new SomeEventHandler (a);
  93                 if (BuildStarted () != 1)
  94                         return 50;
  95
  96                 return 0;
  97         }
  98 }
  99
 100 //
 101 // This class is just to test a bug in mcs; where we used to fail
 102 // when accessing a static event, from an instance method.
 103 //
 104 public class Static {
 105         public static event EventHandler Test;
 106
 107         public void Fire()
 108         {
 109                 if ( Test != null )
 110                         Test (null, null);
 111         }
 112 }