require 'rake/clean'

RBINDIR = Config::CONFIG['bindir']

RBIN = "#{RBINDIR}/rcov"

if File.exists?(RBIN)

  # output goes to subdirectories of this one
  RCOV_OUT = "coverage"

  # "rake clobber" to remove output directory (along with other generated stuff)
  CLOBBER.include(RCOV_OUT)

  # don't report coverage on these files
  RCOV_EXCLUDE = %w(boot.rb environment.rb routes.rb vendor test/functional test/unit).join(',')

  # RCOV command, run as though from the commandline.  Amend as required or perhaps move to config/environment.rb?
  RCOV = "#{RBINDIR}/ruby #{RBIN} --exclude #{RCOV_EXCLUDE} --output #{RCOV_OUT}"

  namespace :test do

    desc "generate a coverage report for unit and functional tests together in #{RCOV_OUT}/index.html"
    task :coverage do
      rm_rf RCOV_OUT
      sh "#{RCOV} test/unit/*.rb test/functional/*.rb"
    end

    namespace :coverage do

      desc "generate a unit test coverage report in #{RCOV_OUT}/index.html"
      task :unit do
        sh "#{RCOV} test/unit/*.rb"
      end

      desc "generate a functional test coverage report in #{RCOV_OUT}/index.html"
      task :functional do
        sh "#{RCOV} test/functional/*.rb"
      end

    end

  end

end