comparing two PFFiles

Question

Is it possible to compare to PFFiles? I am trying to check whether a downloaded PFFile:

let imageFile = object["groupImage"] as PFFile

is equal to a mock data created by me like this:

 let imageData = UIImagePNGRepresentation(UIImage(named: "dot.png")!)
    uploadMock = PFFile(name: "mock", data: imageData!)

Now it happens when I call the comparison, it will not work.

if (mock?.isEqual(image))!{

            print(true)
        } else{

            print(false)

        }

will always give false, even though the images are the same. It seems like it would be necessary, to download the image before. I tried to work around with checking the filename (it worked used to work until I transferred to another database).

Any ideas?