spec/support/setup_builds_storage.rb

RSpec.configure do |config|
  def builds_path
    Rails.root.join('tmp/builds_test')
  end

  config.before(:each) do
    FileUtils.mkdir_p(builds_path)
    Settings.gitlab_ci['builds_path'] = builds_path
  end

  config.after(:suite) do
    Dir.chdir(builds_path) do
      `ls | grep -v .gitkeep | xargs rm -r`
    end
  end
end