public void AutoFindUpdateOrder()
{
updateOrder.Clear();
ECSWorld world = new ECSWorld();
world.Initialize();
world.InvokeUpdate(1);
Assert.Equal(3, updateOrder.Count);
Assert.Equal(typeof(TestSystem1), updateOrder[0]);
Assert.Equal(typeof(TestSystem3), updateOrder[1]);
Assert.Equal(typeof(TestSystem2), updateOrder[2]);
}