https://github.com/mugi-uno/nezumi
fill_in 'staff_password', with: 'password'
click_on 'LOGIN'
find_button('発注する').click # findでみつかるまでwaitが入る模様 -> see https://www.rubydoc.info/github/jnicklas/capybara/Capybara%2FNode%2FFinders:find_button