coverage.rake

require 'rcov/rcovtask'

namespace :test do 
  namespace :coverage do
    desc "Delete aggregate coverage data."
    task(:clean) { rm_f "coverage.data" }
  end
  desc 'Aggregate code coverage for unit, functional and integration tests'
  task :coverage => "test:coverage:clean"
  %w[unit functional integration].each do |target|
    namespace :coverage do
      Rcov::RcovTask.new(target) do |t|
        t.libs << "test"
        t.test_files = FileList["test/#{target}/*_test.rb"]
        t.output_dir = "test/coverage/#{target}"
        t.verbose = true
        t.rcov_opts << '--rails --exclude "gems/*" --aggregate coverage.data'
      end
    end
    task :coverage => "test:coverage:#{target}"
  end
end