have the option for running code after step writer completes

lib/flowerbox/reporter/base.rb

@@ -47,6 +47,7 @@ module Flowerbox
       end
 
       def post_report_failed(data) ; end
+
       def report_numeric_results(gathered_results, data = {}) ; end
 
       def start(message) ; end

lib/flowerbox/reporter/step_writer.rb

@@ -13,6 +13,14 @@ module Flowerbox::Reporter
         self.puts "Writing #{target}..."
 
         File.open(target, 'wb') { |fh| fh.print result.test_environment.obtain_test_definition_for(result) }
+
+        post_report_data[:undefined] = true
+      end
+    end
+
+    def post_report_undefined(data)
+      if post_report_data[:undefined] && options[:on_finish]
+        options[:on_finish].call(options[:target])
       end
     end
   end