ruby on rails 3 - need help distinguishing between users and tests -

ruby on rails 3 - need help distinguishing between users and tests -

i building app online tests. these tests can sent companies individual users. problem distinguising between users , tests... should set login?

i want users click link using devise's token authentication , taken test start page. should token generated tests or users? , there way track how many tokens company generating?

thanks!

ruby-on-rails-3 devise logic