I've had three psychological tests and one 4-hour interview. Yes, three tests. Once in 2015, once in 2016, and once in 2018. However, they were all different. First one was a generic one that went over pretty much every common disorder in the DSM-V. (I believe the entire testing was 8 hours?) Second one was for ADHD. That was 3 hours. Third one was for psychosis (to see if I had Sz instead). That was 3 hours also.

You can see a neuropsychologist or a clinical psychologist for testing. The neuropsychologist might be what you want instead of a clinical psychologist.