Taking the description at face value, I think that it's something natural that occurs in the very early stages of the relationship. If it continues beyond that (extenuating circumstances notwithstanding), then I agree with Oz. Correct, discuss ("this is not how I do things, and if you need my attention, ask me politely or this will not end well..." etc), and if it happens again (see above re: circumstances), a line has been crossed.

My first instinct, though, was not to take the comment as stated. Testing is inherently negative, after a point. Depending on how your relationship works, though, it can be very fun to push boundaries within proper play. My dom and I dubbed it "the dance" when we were an online couple, 8.5 years ago. We still call it that today. If he pushes those buttons, I know I get to play, too. It's fun, and not about testing each other. Years ago, when I worked up the nerve to join a local mailing list, the sub who was pretty much the designated welcoming committee told me that I was a smart-ass masochist and "real" doms wouldn't go near me once they found out, when I tried to explain my style of play to her. That was the last bit of contact I had with the local scene, even knowing that my explanation probably wasn't as well-thought out as I might have given today.

I guess my bottom line is this: If you and your dom/me are on the same page and what you do works in the confines of your relationship, that's okay. If you or your dom/me are unhappy with it, then you need to hash it out. Communication is key.