关于Watir的upload file不能自动选择文件的解决方案

 今天用watir上传文件的附件时，按照http://wiki.openqa.org/display/WTR/File+Uploads的说明怎么都上传不了总是卡在选择文件的那块，在http://stackoverflow.com/questions/2687293/how-to-upload-a-file-with-watir-and-ie看到有人跟我遇到一样的问题，原来是本地化的问题，因为在input_elements.rb中

class FileField < InputElement
   #:stopdoc:
   INPUT_TYPES = ["file"]
   POPUP_TITLES = ['Choose file', 'Choose File to Upload']
   #:startdoc:

   # set the file location in the Choose file dialog in a new process
   # will raise a WatirException if AutoIt is not correctly installed
   def set(path_to_file)
     assert_exists
     require 'watir/windowhelper'
     WindowHelper.check_autoit_installed
     begin
       Thread.new do
         sleep 1 # it takes some time for popup to appear

         system %{ruby -e '
             require "win32ole"

             @autoit = WIN32OLE.new("AutoItX3.Control")
             time    = Time.now

             while (Time.now - time) < 15 # the loop will wait up to 15 seconds for popup to appear
               #{POPUP_TITLES.inspect}.each do |popup_title|
                 next unless @autoit.WinWait(popup_title, "", 1) == 1

                 @autoit.ControlSetText(popup_title, "", "Edit1", #{path_to_file.inspect})
                 @autoit.ControlSend(popup_title, "", "Button2", "{ENTER}")
                 exit
               end # each
             end # while
         '}
       end.join(1)
     rescue
       raise Watir::Exception::WatirException, "Problem accessing Choose file dialog"
     end
     click
   end
 end

 这里有 POPUP_TITLES = ['Choose file', 'Choose File to Upload']，表示是file upload这个控件的文字，在英语中是Choose file和Choose File to Upload而在汉语环境中的是浏览，我尝试过了再这个数组中添加'浏览'但是不管用修改中间的“choose file”成“选择文件”（其中“选择文件”是根据自己操作系统的弹出对话框的title来决定的。因为有些即使是英文操作系统但是“choose file to upload”就需要也进行修改。