public void SubscribeUnmanagedToEventOfStringWithUnsubscribe()
{
var observable = new SomeObservable();
var triggerCount = 0;
Action<string> handler = (s) => { triggerCount++; };
observable.SomeEventWithAString.SubscribeUnmanaged(handler);
Assert.AreEqual(0, triggerCount);
observable.SomeEventWithAString.Fire("Foo");
Assert.AreEqual(1, triggerCount);
observable.SomeEventWithAString.Unsubscribe(handler);
observable.SomeEventWithAString.Fire("Foo");
Assert.AreEqual(1, triggerCount);
}