Rspec capybara test fails with "unknown error: DevToolsActivePort file doesn't exist"

Build Environment Running Tests
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1

Hello!

My rspec feature test fail with the ff:

Failure/Error: visit "/user_update"
          
  Selenium::WebDriver::Error::UnknownError:
    unknown error: Chrome failed to start: exited abnormally.
    (unknown error: DevToolsActivePort file doesn't exist)
      (The process started from chrome location /usr/lib/chromium/chrome 
       is no longer running, so ChromeDriver is assuming that 
       Chrome has crashed.)

in my spec_helper.rb I have:

  Capybara.register_driver :selenium_chrome_headless do |app|
    caps = Selenium::WebDriver::Remote::Capabilities.chrome(
      'chromeOptions' => {
        'binary' => ENV['CHROME_BIN'],
        'args' => ['headless', 'disable-gpu', 'window-size=1366,720', 'no-sandbox'].compact
      }.compact)
    Capybara::Selenium::Driver.new(app, browser: :chrome, desired_capabilities: caps)
  end
  Capybara.javascript_driver = :selenium_chrome_headless

I also SSH into the job and saw that chromium/chrome and chromedriver have the same version.

cd11e80a7014:~# chromium-browser --version
  => Chromium 86.0.4240.111 
cd11e80a7014:~# chromedriver --version
  => ChromeDriver 86.0.4240.111 (b8c36128a06ebad76af51591bfec980224db5522-refs/branch-heads/4240@{#1290})

My circleci config looks like:

feature-tests:
    <<: *test-defaults
    steps:
      - checkout
      - run: cp config/circleci.database.yml config/database.yml
      # Ruby Dependencies
      - restore_cache:
          keys:
          - gem-cache-v2-{{ checksum "Gemfile.lock" }}
      - run:
          name: Bundle install and check gem vulnerabilities
          command: |
            bundle install --jobs=4 --retry=3 --path vendor/bundle
            bundle clean --force
            bundle exec bundler-audit check --update
      - save_cache:
          key: gem-cache-v2-{{ checksum "Gemfile.lock" }}
          paths:
            - ./vendor/bundle
      # Database setup
      - run: bundle exec rake db:create db:schema:load
      - run:
          name: run tests
          command: |
            mkdir /tmp/test-results
            bundle exec rspec \
              --format RspecJunitFormatter \
              --out /tmp/test-results/rspec.xml \
              --format progress \
              spec/features/user_updates_feature_spec.rb

Running locally works, but in circleci it fails.

What I have tried:

  1. add 'disable-dev-shm-usage" in chromeOptions args
  2. changed the cache keys in the circleci config
  3. add driver_path option in Capybara::Selenium::Driver.new to explicitly tell where the driver is

What could be the problem?

Thank you.

2

It was fixed by changing the way I registered my driver:

Capybara.register_driver :selenium do |app|
  options = ::Selenium::WebDriver::Chrome::Options.new

  options.add_argument('--headless')
  options.add_argument('--no-sandbox')
  options.add_argument('--disable-gpu')
  options.add_argument('--disable-dev-shm-usage')
  options.add_argument('--window-size=1366,720')

  Capybara::Selenium::Driver.new(app, browser: :chrome, options: options)
end

Capybara.javascript_driver = :selenium

I dont know the difference really with the previous one above, but this one made it work.

Reference: