When running selenium with capybara/rails, how do I configure the server?

Question

Normally I use the rails dev server at port 3000.

Capybara/Cucumber uses Capybara.server_port = 31337. If I swap from the default driver to selenium, it

Answer 1

If you use selenium, you should start web server in test environment. You can start it on a different port from development. Then you should configure Capybara to use that port:

  Capybara.run_server = true #Whether start server when testing
  Capybara.server_port = 8200
  Capybara.default_selector = :css #:xpath #default selector , you can change to :css
  Capybara.default_wait_time = 5 #When we testing AJAX, we can set a default wait time
  Capybara.ignore_hidden_elements = false #Ignore hidden elements when testing, make helpful when you hide or show elements using javascript
  Capybara.javascript_driver = :selenium #default driver when you using @javascript tag
  # Other option is:
  # Capybara.javascript_driver = :webkit

If you don't want to start server every time before you run your cucumber scenarios I suggest you to use capybara webkit driver. All javascript scenarios will run at background. It also will work on continuous integration server.

If you are on Linux platform, capybara-webkit requires an X server to run. To setup it you can use headless gem. Here is headless configuration for cucumber:

# place code below in features/support/headless.rb
if Capybara.current_driver == :webkit
  require 'headless'

  headless = Headless.new
  headless.start

  at_exit do
    headless.destroy
  end
end