Test running error of address already in use

[ZoharLiran]

I have one simple test that is passing when it is ran not in parallel.

When I run it using the parallel gem I am getting:

Errno::EADDRINUSE:
            Address already in use - bind(2) for 127.0.0.1:9887

Here is my helper:

Capybara.server_port = 9887 + ENV['TEST_ENV_NUMBER'].to_i
  Capybara.run_server = true
  Capybara.register_driver :selenium do |app|
    Capybara::Selenium::Driver.new(app, browser: :chrome)
  end
  Capybara.app_host = "http://localhost.autodesk.com:#{Capybara.server_port}"
  Capybara.default_driver = :selenium
  Capybara.javascript_driver = :selenium
  RSpec.configure do |config|
    if local_selenium?
      config.before(:each) do
        Capybara.page.driver.browser.manage.window.resize_to(
          *SCREEN_SIZE.split('x')
        )
      end
    end
  end

I am not sure this is an issue with the gem, but I am not seeing anything on stackoverflow regarding this. am I setting up the port and server in the correct way?

it seems like Capybara is trying to start a new rack application on every process. any ideas on how to prevent it? should this be something that we incorporate into the gem?

[ZoharLiran]

Closing the issue since I was using multitask which calls parallel_split_test multiple times and each one of those runs is actually trying to start from ENV['TEST_ENV_NUMBER'] being 0