Devise Confirmable Capybara Test

devise_confirmable_capybara_test.md

scenario 'HP: User Sign Up w/ Confirmable Email and Log in ' do
  visit new_user_registration_path
  fill_in 'Email', with: 'test_user_confirmable@example.com'
  fill_in 'Password', with: 'password'
  fill_in 'Password confirmation', with: 'password'
  assert_difference 'User.count', 1 do
    click_button 'Sign up'
    mail = ActionMailer::Base.deliveries[0]
    token = mail.body.decoded.match(/confirmation_token=([^"]+)/)[1]
    assert_equal User.find_by(email: "test_user_confirmable@example.com").confirmation_token, token
    visit "users/confirmation?confirmation_token=#{token}"
    page.must_have_text "Your email address has been successfully confirmed."
    fill_in 'Email', with: 'test_user_confirmable@example.com'
    fill_in 'Password', with: 'password'
    click_button 'Log in'
    page.must_have_text "Signed in successfully."
  end
end

Thank you very much! It helps me alot.