@singingwolfboy Right now, `window.Video` is defined elsewhere, and `window.None` is not defined. This may change in the future. We should consider all possibilities.

Also, since `window.Video` is defined, we can actually remove this check. However, if we remove the check for `window.None`, this test will fail because `window.None` is undefined, and we are passing it to `spyOn` method, which expects it to be defined.