Ruby on Rails

The code in question is at https://github.com/jhsu802701/generic_app_template/blob/master/test/integration/admins_view_test.rb .

I've used the Devise gem to create users and admins.  I've successfully made the admin index page visible ONLY to admins, but it's failing the tests (Capybara and minitest).  For some reason, executing the "visit" command kills the session.  WHY?  What should I be doing about this?

The source code is:

login_admin('elle_woods@example.com', 'Harvard Law', false)

# View admin index

admin_path = root_path + '/admins'

click_on 'Profile'

visit admin_path # NOTE: using the 'visit' command loses the session

@a1.reload

#assert_equal current_path, '/admins'

assert_text 'Vivian'

assert_text 'Kensington'

assert_text 'Elle'

assert_text 'Woods'