class ParallelTests::Gherkin::RuntimeLogger

def initialize(config)
  @io = prepare_io(config.out_stream)
  @example_times = Hash.new(0)
  config.on_event :test_case_started do |_|
    @start_at = ParallelTests.now.to_f
  end
  config.on_event :test_case_finished do |event|
    @example_times[event.test_case.feature.file] += ParallelTests.now.to_f - @start_at
  end
  config.on_event :test_run_finished do |_|
    lock_output do
      @io.puts @example_times.map { |file, time| "#{file}:#{time}" }
    end
  end
end