class SimpleCov::ExitCodes::MinimumOverallCoverageCheck

def worst_files_for(criterion)
  stats_key = SimpleCov.coverage_statistics_key(criterion)
  with_stats = @result.files.filter_map do |source_file|
    stats = source_file.coverage_statistics[stats_key]
    [source_file.project_filename, stats.percent] if stats
  end
  with_stats.sort_by { |_path, percent| percent }.first(WORST_FILES_LIMIT)
end