hack cucumber 1.3 to have an entry point to debug and continue scenario after failure

cucumber_pry

      # execute this code to fall into a pry session upoon step failure
      # works only with cucumber 1.3
      # so far for 2.0 best similar approach is to us the After hook
      # fall into pry/buybug if scenario.failed? is true
      # After hook works for 1.3 as well

      Cucumber::Ast::StepInvocation.class_eval do
        ## first make sure we don't lose original accept method
        unless self.instance_methods.include?(:orig_accept)
          alias_method :orig_accept, :accept
        end

        ## wrap original accept method to catch errors in executed step
        def accept(visitor)
          orig_accept(visitor)
          if @exception && ! @exception.class.name.start_with?("Cucumber::")
            # @exception = nil # to continue with following steps
            # cd visitor.runtime/@support_code
            # cd @programming_languages[0].current_world
            # binding.pry
            # visitor.configuration
            require 'pry'
            binding.pry
          end
        end
      end