Drupal Commons is a "community collaboration website in a box" built on Drupal.
In addition to standard installation via the UI, Commons can be built using Drush make.
drush make build-commons.make ~/Destination/docroot
Use the site-install command to install Drupal with the Commons installation profile.
drush si commons
You may now login to your site.
drush uli -l http://mysite.dd
Install the drupal-extension for mink/behat from the Commons profile.
cd profiles/commons/tests && composer install
Set up a behat.yml file replacing @BASE_URL@ with the URL to your site and @DRUPAL_ROOT@ with the path to your site on disk.
cp behat.template.yml behat.yml
Check that behat is installed and running.
bin/behat --help
Run tests.
bin/behat
Official documentation for Commons is available at https://docs.acquia.com/commons.
The Commons project is available at: http://drupal.org/project/commons.