Nope, I haven't been tested and I see no point in doing so. I've been vaccinated 4 times, and in the last 2.5 years, have been to a grocery store thrice and to a restaurant twice, at times when there were few people there and plenty of room to stay apart from them. I wear an N95 mask every time I leave the house, except when I'm just in my yard. I figure my opportunities to catch Covid are nearly zero. I have N95 masks on hand for visitors to wear when I am around (IOW, not in my room). Other than the guy who visited us for 2.5 months from Australia, no one has been here who doesn't live here.
My cousin, who has MS, has some kind of ultrasonic machines (IIRC the type of machine) that clean the air in his house, including Covid and other viruses. I have an air cleaner, too, that supposedly cleans viruses, but that has not been proven to my satisfaction.