A curious case of "new" keyword LogWarning when creating monobehaviours.

Hi,

Im wondering about something I am doing that is causing this well known warning:

You are trying to create a MonoBehaviour using the 'new' keyword. This is not allowed. MonoBehaviours can only be added using AddComponent(). Alternatively, your script can inherit from ScriptableObject or no base class at all.

I am well aware that the solution to this would be to simply use AddComponent< T>, However in my case the place I am getting this error is when running my [test] functions. And what I am creating is:

 GameObject actor;
 actor = new GameObject();

Im wondering if there is any other way that I could possibly create gameObjects without incurring this logwarning?