Do you think that online tests are useful? Would you encourage students to use online tests for other purposes, such as personality tests, technology skills tests, etc. Why/why not?

I think online tests are totally useful. When I start an online test, I also start to learn thanks to the test. I think it is better than playing game, or others wasting time staffs. I will absolutely encourage my students to use online tests. It is one of the effective ways of learning.