class Minitest::LineReporter

def report
  return unless @failures.any?
  io.puts
  io.puts "Focus on failing tests:"
  pwd = Pathname.new(Dir.pwd)
  @failures.each do |res|
    meth = res.method(res.name)
    file, line = meth.source_location
    if file
      file = Pathname.new(file)
      file = file.relative_path_from(pwd) if file.absolute?
      output = "mtest #{file}:#{line}"
      output = "\e[31m#{output}\e[0m" if $stdout.tty?
      io.puts output
    end
  end
end