Suggestion for custom reporter

[Paxa]

I like rspec's feature that print commands to re-run failed tests. I tried to implement same for m (minitest).

Do you think it will be nice to make it as part of m (only module to extend minitest's reporter)?

module MRerun

  def m_rerun
    out = StringIO.new
    failed = tests.reject {|t| t.passed? || t.skipped? }

    if failed.size > 0
      out.puts "\nRe-run with m:"
      failed.each do |test|
        file = nil
        test.failure.backtrace.each do |line|
          path = line.split(':in').first
          if path =~ /_(test|spec).rb:\d+$/
            file = path
            break
          end
        end
        file ||= test.failure.location
        out.puts "m #{file.sub(Dir.pwd, '').sub(/^\//, '')}"
      end
    end

    out.string
  end

  def on_report
    super
    puts yellow(m_rerun)
  end

end

class Minitest::Reporters::DefaultReporterWithM < Minitest::Reporters::DefaultReporter
  include MRerun
end

Minitest::Reporters.use!(
  Minitest::Reporters::DefaultReporterWithM.new(color: true)
)

[zamith]

Thanks for the suggestion, I do like that feature of RSpec, but the rspec retry feature goes even further and saves the tests that failed in a file and you can then run only those with one command.

If you want to try to do that for M in a way that works for all the runners we support I'd be willing to merge it in.