public void sealable_throws_exception_changing_after_sealed()
{
var sealable = new Sealable();
sealable.Seal();
var addon = new Addon();
sealable.AddOrUpdate(addon);
}
public void AddonBag_sealable()
{
var sealable = new Sealable();
var addon = new Addon();
sealable.AddOrUpdate(addon);
Assert.AreEqual(addon, sealable.GetAddon <IAddon1>());
Assert.AreEqual(addon, sealable.GetAddon <IAddon2>());
}