public void GCTest()
{
var provider = new MyEventProvider();
var listener = new MyEventListener();
listener.Listen(provider);
Assert.That(EventManager.Count, Is.EqualTo(1), "WeakEventManager.Count");
provider.Raise();
Assert.That(listener.Count, Is.EqualTo(1), "listener.Count");
// var weakListener = new WeakReference(listener);
listener = null;
// how long we have to wait until the GC collects?
GC.Collect(); GC.WaitForPendingFinalizers(); GC.Collect();
var stopwatch = new Stopwatch(); stopwatch.Start();
while (EventManager.Count > 0)
{
provider.Raise();
Thread.Sleep(10);
}
Trace.WriteLine("Collected after " + stopwatch.Elapsed);
//Assert.That(WeakEventManager.Count, Is.EqualTo(0),"WeakEventManager.Count");
}
public void EventHandler()
{
var provider = new MyEventProvider();
var listener = new MyEventListener();
listener.Listen(provider);
provider.Raise();
Assert.That(listener.Count, Is.EqualTo(listener.Count), "listener.Count");
}
public void GCCollectTest()
{
var provider = new MyEventProvider();
var listener = new MyEventListener();
listener.Listen(provider);
Assert.That(EventManager.Count, Is.EqualTo(1), "WeakEventManager.Count");
provider.Raise();
Assert.That(listener.Count, Is.EqualTo(1), "listener.Count");
listener = null;
EventManager.Collect(true);
Assert.That(EventManager.Count, Is.EqualTo(0), "WeakEventManager.Count");
}
public void PerformanceTest1()
{
var provider = new MyEventProvider();
var listener = new MyEventListener();
listener.Listen(provider);
var count = 1000000;
var stopwatch = new Stopwatch(); stopwatch.Start();
for (int i = 0; i < count; i++)
{
provider.Raise();
}
stopwatch.Stop();
Assert.That(listener.Count, Is.EqualTo(count), "listener.Count");
Trace.WriteLine(string.Format("Time: {0}", new TimeSpan(stopwatch.ElapsedTicks * 1)));
}
public void MassiveGCTest()
{
var provider = new MyEventProvider();
var r = new System.Random();
var stopwatch = new Stopwatch(); stopwatch.Start();
const int max = 2000;
var c = EventManager.Count;
for (int i = 1; i <= max; i++)
{
var listener = new MyEventListener();
listener.Listen(provider);
provider.Raise();
Thread.Sleep(r.Next(8, 12 + 1));
if (EventManager.Count + c < i)
{
//OK any listener has been collected
Trace.WriteLine("GC collected at interation " + i + " " + stopwatch.Elapsed + " " + EventManager.Count + " alive");
c = i - EventManager.Count;
}
}
Trace.WriteLine(EventManager.Count * 100 / max + "% alive after " + stopwatch.Elapsed);
var next = stopwatch.Elapsed.Add(TimeSpan.FromSeconds(1));
while (EventManager.Count > 0)
{
if (stopwatch.Elapsed < next)
{
Thread.Sleep(10); EventManager.Collect(); continue;
}
Trace.WriteLine(EventManager.Count * 100 / max + "% alive after " + stopwatch.Elapsed);
next = stopwatch.Elapsed.Add(TimeSpan.FromSeconds(1));
}
//Assert.Fail("Nothing collected!");
}
