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 --aggregate coverage.data' end end task :coverage => "test:coverage:#{target}" end end