Rspec webrick

bindaddress.rb

# spec/support/bindaddress.rb
# Equivalent to $ rails server -b 127.0.0.1

require 'webrick'

module Rack
  module Handler
    class WEBrick
      def self.run(app, options={})
        options[:BindAddress] = '127.0.0.1'
        @server = ::WEBrick::HTTPServer.new(options)
        @server.mount "/", Rack::Handler::WEBrick, app
        yield @server  if block_given?
        @server.start
      end
    end
  end
end