public void AdditiveDelegates()
{
SimpleDelegateTestObject source = new SimpleDelegateTestObject();
SimpleDelegateTestObject target = new SimpleDelegateTestObject();
SimpleDelegateTestObject neutral = new SimpleDelegateTestObject();
neutral.ListenTo(target);
{
// Does the neutral object receive events?
target.FireEvent();
Assert.IsTrue(neutral.PopEventReceived());
source.DeepCopyTo(target);
// Does it still receive them after copying the source onto it?
target.FireEvent();
Assert.IsTrue(neutral.PopEventReceived());
}
{
source.ListenTo(source);
// Does the source receive its own events?
source.FireEvent();
Assert.IsTrue(source.PopEventReceived());
Assert.IsFalse(source.PopEventReceived());
source.DeepCopyTo(target);
// Do both neutral object and target itself receive both target events?
target.FireEvent();
Assert.IsTrue(neutral.PopEventReceived());
Assert.IsFalse(neutral.PopEventReceived());
Assert.IsTrue(target.PopEventReceived());
Assert.IsFalse(target.PopEventReceived());
Assert.IsFalse(source.PopEventReceived());
}
}
[Test] public void StaticDelegates()
{
SimpleDelegateTestObject source = new SimpleDelegateTestObject();
SimpleDelegateTestObject target;
bool staticEventReceived = false;
source.SomeEvent += delegate (object sender, EventArgs e)
{
staticEventReceived = true;
};
// Does the static event work as expected?
source.FireEvent();
Assert.IsTrue(staticEventReceived);
staticEventReceived = false;
target = source.DeepClone();
// We expect static events to not be cloned due to conceptual ownership inversion in delegates
target.FireEvent();
Assert.IsFalse(staticEventReceived);
// The source should still trigger it though.
source.FireEvent();
Assert.IsTrue(staticEventReceived);
}
[Test] public void SimpleDelegates()
{
SimpleDelegateTestObject source = new SimpleDelegateTestObject();
SimpleDelegateTestObject target;
source.ListenTo(source);
// Does the event work as expected?
source.FireEvent();
Assert.IsTrue(source.PopEventReceived());
target = source.DeepClone();
// Does the cloned event work the same?
target.FireEvent();
Assert.IsFalse(source.PopEventReceived());
Assert.IsTrue(target.PopEventReceived());
}