Tddium CarrierWave configuration

carrierwave.rb

# config/initializers/carrierwave.rb
CarrierWave.configure do |config|
  if Rails.env.production?
    # production setup stuff
  elsif Rails.env.test?
    if ENV['TDDIUM']
      config.storage = :file
      config.root = Dir.tmpdir
      config.cache_dir = "carrierwave"
    else
      config.storage = :file
    end
  else
    # other config
  end
end

@semipermeable any suggestions for using this with Capybara specs? When I try to set storage to :file for feature specs, I get No route matches errors for images that are uploaded. We set it to store in public/tmp to get around this, but then it doesn't work consistently on Tddium.