Test Unit Colorized Output with Test:Unit and Ruby 1.9

example.rb

#test/test_helper.rb
require 'test/unit/ui/console/testrunner'

class Test::Unit::UI::Console::TestRunner
  def guess_color_availability 
    true 
  end
end

#Gemfile
group :development, :test do
  gem "minitest", "~> 2.10.0"
  gem "turn", "~> 0.8.3"
  gem 'test-unit', '~> 2.0.0'  
  gem 'autotest-rails'
end