Set default_url_options in test environments too

config/initializers/8_default_url_options.rb

-unless Rails.env.test?
-  default_url_options = {
+default_url_options = {
   host:        Gitlab.config.gitlab.host,
   protocol:    Gitlab.config.gitlab.protocol,
   script_name: Gitlab.config.gitlab.relative_url_root
-  }
+}
 
-  unless Gitlab.config.gitlab_on_standard_port?
+unless Gitlab.config.gitlab_on_standard_port?
   default_url_options[:port] = Gitlab.config.gitlab.port
-  end
-
-  Rails.application.routes.default_url_options = default_url_options
 end
+
+Rails.application.routes.default_url_options = default_url_options