What are the ways to test a bipolar person?

ask yourself questions like: do i get depressed sometimes out of no where? do i have random moodswings? do i get angry or upset at people when i don't mean it or don't know why? questions like this could help you out a bit

Online searches show many informal "screener" tests that can give you insight on whether you may have bipolar. These tests cannot diagnose you, but if you score high it is a good idea to talk to a professional and get a formal diagnosis. I'll include a link here: https://www.psycom.net/depression.central.bipolar-screening.html

People with bipolar disorder go through intense emotional changes that are very different from their usual mood and behavior. These changes affect their lives on a day-to-day basis. Testing for bipolar disorder isn’t as simple as taking a multiple choice test or sending blood to the lab. While bipolar disorder does show distinct symptoms, there’s no single test to confirm the condition. Often, a combination of methods is used to make a diagnosis.If you experience extreme shifts in your mood that disrupt your daily routine, you should see your doctor. There are no specific blood tests or brain scans to diagnose bipolar disorder. Even so, your doctor may perform a physical exam and order lab tests, including a thyroid function test and urine analyses. These tests can help determine if other conditions or factors could be causing your symptoms.