# File test_format.rb, line 500
  def helper_test_eleven (body_fmt, file_name)
    File.open(file_name, 
              File::CREAT | File::WRONLY | File::TRUNC) { |file|
      body_fmt.io = file
      one = 1
      body_fmt.printFormat(binding)
    }
    assert(compareOutput(file_name,
                         "./format_test.pl 11", nil))
  end