Standout Capybara

The purpose of this gem is to make it easier to setup Capybara drivers with sane defaults. It will default to headless_chrome, and if you use it with nanobox it will default to nanobox_chrome. But feel free to overwrite the environment variable CAPYBARA to use another capybara driver.


Add this line to your application's Gemfile:

# Gemfile
group :development, :test do
  gem "capybara"
  gem "standout-capybara", require: false

# test_helper.rb, spec_helper.rb or rails_helper.rb etc
require 'capybara/rails'
require 'standout/capybara/setup'

And then execute:

$ bundle


Headless chrome

Just run your test command, the headless_chrome is the default driver


Run the test command with CAPYBARA=chrome.


$ CAPYBARA=chrome rake

Nanobox chrome

Add a local only component of standalone chrome to your boxfile.yml
  image: selenium/standalone-chrome
  local_only: true

Now you can run the test as usual.


$ nanobox run rake


Options that you can override using environment variables.

Environment variable Description
CAPYBARA Override the driver
CAPYBARA_WAIT_TIME Override default wait time of capybara

Available drivers

Override the driver using the environment variable CAPYBARA.


CAPYBARA=[driver name] test-command
Driver name Description
chrome Regular chrome driver that will use a visual browser window.
headless_chrome Headless chrome driver. The default driver.
nanobox_chrome Default driver when inside Nanobox.
remote_chrome Default driver when ENV['HUB_URL'] is defined.


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at[USERNAME]/standout-capybara. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.


The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the Standout::Capybara project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.


To release a new version you should bump the version in the file lib/standout/capybara/version.rb, commit the change and push it to GitHub. Then you should create a release in GitHub and it will automatically be built and uploaded to RubyGems and as a GitHub Package.