Bad call to route formatter on Rails 5 (WashOut::Router.url)

[knightq]

In lib/wash_out/router.rb: the code on url class method will always raise a NoMethodError in Rails 5 brach, due to a bad param (nil) when calling evaluate.

    def self.url(request, controller_name)
      lookup_soap_routes(controller_name, Rails.application.routes.routes) do |routes|

        path = if routes.first.respond_to?(:optimized_path)      # Rails 4
          routes.map(&:optimized_path)
        elsif routes.first.path.respond_to?(:build_formatter)    # Rails 5
          routes.map{|x| x.path.build_formatter.evaluate(nil)}
        else
          routes.map{|x| x.format({})}                           # Rails 3.2
        end

        if Rails.application.config.relative_url_root.present?
          path.prepend Rails.application.config.relative_url_root
        end
        return request.protocol + request.host_with_port + path.flatten.join('')
      end
    end

Instead of:

routes.map{|x| x.path.build_formatter.evaluate(nil)}

it should be:

routes.map{|x| x.path.build_formatter.evaluate({})}

See also Ruby on Rails 5 implementation for evaluate method called.