Behat: Using Chrome driver

behat.yml

default:
  suites:
    default:
      contexts:
        - FeatureContext
        - Drupal\DrupalExtension\Context\DrupalContext
        - Drupal\DrupalExtension\Context\MinkContext
        - Drupal\DrupalExtension\Context\MessageContext
        - Drupal\DrupalExtension\Context\DrushContext
      filters:
        tags: '~@bug&&~@wip'
  extensions:
    Behat\MinkExtension:
      sessions:
        default_session:
          selenium2:
            browser: chrome
            wd_host: http://127.0.0.1:9515
            capabilities:
              chrome:
                switches:
                  - "--headless"
                  - "--disable-gpu"
    Drupal\DrupalExtension:
      blackbox: ~

# run all 'ready' tests
ci:
  suites:
    default:
      filters:
        tags: '~@bug&&~@wip'

# run tests that are still in dev
wip:
  suites:
    default:
      filters:
        tags: '@wip&&~@bug'

# run key tests (fast test)
smoke:
  suites:
    default:
      filters:
        tags: '@smoke-test,@smoke'

# dont run slow tests
no-slow:
  suites:
    default:
      filters:
        tags: '@~bug&&~@slow'

firefox:
  extensions:
    Behat\MinkExtension:
      default_session: selenium_firefox_session

imports:
  - behat.local.yml