mcs/tests/test-async-19.cs

   1 // Compiler options: -langversion:future
   2
   3 using System;
   4 using System.Threading;
   5 using System.Threading.Tasks;
   6
   7 class C
   8 {
   9         static ManualResetEvent caught = new ManualResetEvent (false);
  10
  11         static async void Test (ManualResetEvent mre)
  12         {
  13                 var a = Task.Factory.StartNew (() => {
  14                         if (mre.WaitOne (1000))
  15                                 throw new ApplicationException ();
  16                 });
  17
  18                 await a;
  19         }
  20
  21         public static int Main ()
  22         {
  23                 ManualResetEvent mre = new ManualResetEvent (false);
  24                 Test (mre);
  25
  26                 var handler = new UnhandledExceptionEventHandler (CurrentDomain_UnhandledException);
  27                 AppDomain.CurrentDomain.UnhandledException += handler;
  28                 try {
  29                         mre.Set ();
  30
  31                         if (!caught.WaitOne (1000))
  32                                 return 1;
  33
  34                         return 0;
  35                 } finally {
  36                         AppDomain.CurrentDomain.UnhandledException -= handler;
  37                 }
  38         }
  39
  40         static void CurrentDomain_UnhandledException (object sender, UnhandledExceptionEventArgs e)
  41         {
  42                 if (e.ExceptionObject is ApplicationException)
  43                         caught.Set ();
  44         }
  45 }