def run_bin bin, options
  Dir.chdir TEST_FOLDER do
    opt = options.dup
    
    if opt.include? '{base}'
      raise "*** {base} is missing" unless @osm_file
      opt.gsub! "{base}", "#{@osm_file}" 
    end

    if opt.include? '{profile}'
      opt.gsub! "{profile}", "#{PROFILES_PATH}/#{@profile}.lua" 
    end
        
    @stdout = `#{BIN_PATH}/#{bin} #{opt} 2>error.log`
    @stderr = File.read 'error.log'
    @exit_code = $?.exitstatus
  end
end