Actually, I know of those tests, but I still feel like there is a difference between recognizing the image in a mirror to be the reflection of your own and not just some tv show and not beeing self-aware.
Take a look at my cat for example. Sure, if I paint a dot on her head and show it to her in a mirror, she wont relize she actually has a dot on her head. But if I paint her leg for example, she's gonna see it and try to clean it off - because she does realize that her leg is part of her body. Also, cats show emotions, they do indeed make plans and they most likely dream, too. Rapid eye movement wich is something we humans do uring our dreams can be observed with animals, too. Sometimes animals like cats suddenly awake with an itching movement of almost all their muscles - we humans do the same thing after experiancing a bad dream in wich we fall from great height or get other panicing images that let us wake up.
Sure, there are differences in the mental abilities of other animals and humans, that is after all the biggest feature of our species. But that doesnt mean that we are no animal anymore, it just makes us a smart animal. Ofc, you can define exactly that as beeing the cut between animal and not animal... as I said, it all depends on definition. I myself like to not do that cut at all and see ourselfes as animals, mostly for biological reasons. We difference pant from animal and fungi for physical reasons, not mental ones, why should we change our method for the 'wnb special case' of humans? But that's just me...