ftp_mock.rb

require_dependency 'net/ftp'

class FTPMock
  def gettextfile(remote_path, local_path)
    test_file = File.join(RAILS_ROOT, 'test', 'data', 'dbready', remote_path)
    if !File.exists?(test_file)
      raise Net::FTPPermError, test_file + ' not found!'
    end
    
    FileUtils.cp test_file, local_path
  end

  def connect(host, port = FTP_PORT)
  end
        
  def open_socket(host, port)
  end
        
  def close
  end
end

module Net
  class FTPError < StandardError; end
  class FTPReplyError < FTPError; end
  class FTPTempError < FTPError; end 
  class FTPPermError < FTPError; end 
  class FTPProtoError < FTPError; end

  class FTP
    def self.open(*params)
      FTPMock.new
    end
  end
end