login page is tested with correct input and also with wrong input. successfully given error messages for wrong input.
signup page correctly displays error messages for wrong input. only for e-mail validation error message could not be displayed. Page is not directed to login, so user needs to check and re-enter.
correct signup directs to login page correctly.
if user is logged in, welcome page is redirected to analytics page, passing login and signup
test user login and log out of the site, fix if there are any irregularities