Rails integration test with selenium as webdriver - can't sign_in

Question

Hi
I have a very simple integration test

require 'integration_test_helper'
Capybara.current_driver = :rack_test

class AdminSignsInTest < ActionDispatch::IntegrationTest

  test 'can sign in' do
    email = '[email protected]'
    password = 'secret_password'
    Admin.create email: email, password: password

    visit new_admin_session_path
    fill_in 'admin_email', with: email
    fill_in 'admin_password', with: password

    click_button I18n.t('devise.views.sign_in')

    assert_equal I18n.t('devise.sessions.signed_in'), find('p.notice').text
  end
end

When I set Capybara driver to rack_test test passes, but when I set it to selenium, it fails with 'Invalid email or password.' on the login page (I'm using Devise). What am I doing wrong?

Answer 1

When I set Capybara driver to rack_test test passes, but when I set it to selenium, it fails with 'Invalid email or password.' on the login page (I'm using Devise). What am I doing wrong?

You'll have to check use_transactional_fixtures. When using transactional fixtures, because Selenium (or, any of the external drivers, which aren't Rack::Test) do not have access to information that has been written to the database. (as the transaction hasn't been "Committed")

You can resolve this inside of your test_helper.rb with the following:

class ActionDispatch::IntegrationTest
  self.use_transactional_fixtures = false
end

You may want, at the same time to look into something like Database Cleaner, as without transactional fixtures, your database will become untidy.

Answer 2

From http://opinionatedprogrammer.com/2011/02/capybara-and-selenium-with-rspec-and-rails-3/:

You will also need DatabaseCleaner, since transactional fixtures do not work with Selenium. Add the database_cleaner gem to the :test group of your Gemfile and put the following code into spec/support/database_cleaner.rb:

DatabaseCleaner.strategy = :truncation

RSpec.configure do |config|
  config.use_transactional_fixtures = false
  config.before :each do
    DatabaseCleaner.start
  end
  config.after :each do
    DatabaseCleaner.clean
  end
end