A purity test is like a big checklist that asks you lots of questions about things you may have done or experienced in your life. These questions are usually about things like relationships, friendships, and activities you may have done.
The test helps you see how "pure" or innocent you are based on your answers. The more things you have done or experienced, the lower your purity score might be. Some people take these tests just for fun or to see how they compare to others.
Remember, everyone's experiences and choices are different, and no test can truly measure how good or "pure" someone is. It's just a fun way to think about the things you have done in your life.