public async Task AsyncExecutionEvent_CanDisposeFromCallback_Async()
{
var executionEvent = new AsyncExecutionEvent <object, object>();
int value = 0;
Task callbackAsync(object sender, object arg)
{
value++;
// Try to unregister itself.
executionEvent.Unregister(callbackAsync);
executionEvent.Dispose();
return(Task.CompletedTask);
}
executionEvent.Register(callbackAsync);
// Execution should increment the value and unregister the callbacks and dispose the execution event.
await executionEvent.ExecuteCallbacksAsync(null, null);
Assert.Equal(1, value);
// After a while, no more executions are not possible because the event's lock is disposed.
await Task.Delay(100);
await Assert.ThrowsAsync <ObjectDisposedException>(async() => await executionEvent.ExecuteCallbacksAsync(null, null));
// Further attempts to dispose execution event won't do any harm.
executionEvent.Dispose();
}
