Fighting back is what he wants you to do. Gotta remember where the term bird brain comes from. I agree, he is testing the waters and trying to dominate you as he would a hen. Not acceptable. Lots of different ways to deal with Mr. Attitude. Here's what I do personally. I have four roosters right now. Two of them, junior roosters in the flock, like to test the waters with me usually when dealing with attitudes is the last thing I want to do. The biggest is a one year old Lavender Orpington rooster. He is a gorgeous bird but he thinks he is in charge of the treat lady and if I get too close to him he flares those hackle feathers and comes charging at me. I get out of his way and then look out. I will not tolerate attitude from my roosters. If I cannot stop it, they are out the front gate at warp speed. Any rooster that does that finds that he has a 5'2" red head (well it used to be red before age caught up with me) unleashing a holy you know what on him. The rest of the flock clears out and I chase the transgressor until he is subdued under my arm where he gets carried around for 10 minutes in what I call 'the rooster walk of shame'. When I get tired of hauling the rooster's sorry butt around, he gets put on the ground in a mating position with his breast pressed against the ground. If he protests, he gets carried around for another 5 minutes. I have noted that it usually takes only an additional 5 minutes before the rooster is willing to humble himself and submit. When he does, he goes free.
This has worked for me with my roos. Please try not to be afraid of your boy. They can sense that and then you are theirs. If he is a young bird, you have a chance to take the attitude out of him. Do not try to make him a pet. Do not cuddle him or expect him to be anything other than as stated, Breeder and flock protector. He has to get out of your way if you walk towards him. If he doesn't he need to learn to.
There are a lot of ways to break a rooster of having too much attitude. This is just what has worked for me. Do a search and read what has worked for others.
If you cannot mold him into a proper rooster, remember. There are lots of nice roosters out there looking for good homes.
Good luck with your problem boy.