Blink(1) Minitest Reporter

config-initializers-minitest_reporters_blink1.rb

require 'blink1'
require 'minitest/reporters'

module Minitest
  module Reporters
    class Blink1Reporter < BaseReporter
      SUCCESS = [0, 170, 0]
      SKIPPED = [180, 150, 0]
      FAILURE = [180, 0, 0]
      FADE = 150

      def record(test)
        super

        if test.passed?
          blink1.fade_to_rgb(FADE, *SUCCESS)
        elsif test.skipped?
          blink1.fade_to_rgb(FADE, *SKIPPED)
        elsif test.failure
          blink1.fade_to_rgb(FADE, *FAILURE)
        end
      end

      def report
        super

        if failures > 0 || errors > 0
          blink1.fade_to_rgb(FADE, *FAILURE)
        elsif skips > 0
          blink1.fade_to_rgb(FADE, *SKIPPED)
        else
          blink1.fade_to_rgb(FADE, *SUCCESS)
        end

        blink1.close
      end

    private
      def blink1
        @blink1 ||= ::Blink1.new.tap(&:open)
      end
    end
  end
end

Gemfile

group :test do
  gem 'minitest-reporters'
  gem 'rb-blink1'
end

test_helper.rb

Minitest::Reporters.use!(
  [
    Minitest::Reporters::DefaultReporter.new,
    Minitest::Reporters::Blink1Reporter.new
  ],
  ENV,
  Minitest.backtrace_filter
)