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### From http://svn.geekdaily.org/public/rails/plugins/generally_useful/tasks/coverage_via_rcov.rake

namespace :test do

  desc 'Measures test coverage'

  task :coverage do

    rm_f "coverage"

    rm_f "coverage.data"

    rcov = "rcov --rails --aggregate coverage.data --text-summary -Ilib --html"

    files = Dir.glob("test/**/*_test.rb").join(" ")

    system("#{rcov} #{files}")

    system("open coverage/index.html") if PLATFORM['darwin']

  end

  desc 'Run unit and functional scm tests'

  task :scm do

    errors = %w(test:scm:units test:scm:functionals).collect do |task|

      begin

        Rake::Task[task].invoke

        nil

      rescue => e

        task

      end

    end.compact

    abort "Errors running #{errors.to_sentence(:locale => :en)}!" if errors.any?

  end

  namespace :scm do

    namespace :setup do

      desc "Creates directory for test repositories"

      task :create_dir do

        FileUtils.mkdir_p Rails.root + '/tmp/test'

      end

      supported_scms = [:subversion, :cvs, :bazaar, :mercurial, :git, :darcs, :filesystem]

      desc "Creates a test subversion repository"

      task :subversion => :create_dir do

        repo_path = "tmp/test/subversion_repository"

        system "svnadmin create #{repo_path}"

        system "gunzip < test/fixtures/repositories/subversion_repository.dump.gz | svnadmin load #{repo_path}"

      end

      desc "Creates a test mercurial repository"

      task :mercurial => :create_dir do

        repo_path = "tmp/test/mercurial_repository"

        bundle_path = "test/fixtures/repositories/mercurial_repository.hg"

        system "hg init #{repo_path}"

        system "hg -R #{repo_path} pull #{bundle_path}"

      end

      (supported_scms - [:subversion, :mercurial]).each do |scm|

        desc "Creates a test #{scm} repository"

        task scm => :create_dir do

          # system "gunzip < test/fixtures/repositories/#{scm}_repository.tar.gz | tar -xv -C tmp/test"

          system "tar -xvz -C tmp/test -f test/fixtures/repositories/#{scm}_repository.tar.gz"

        end

      end

      desc "Creates all test repositories"

      task :all => supported_scms

    end

    desc "Updates installed test repositories"

    task :update do

      require 'fileutils'

      Dir.glob("tmp/test/*_repository").each do |dir|

        next unless File.basename(dir) =~ %r{^(.+)_repository$} && File.directory?(dir)

        scm = $1

        next unless fixture = Dir.glob("test/fixtures/repositories/#{scm}_repository.*").first

        next if File.stat(dir).ctime > File.stat(fixture).mtime

        FileUtils.rm_rf dir

        Rake::Task["test:scm:setup:#{scm}"].execute

      end

    end

    Rake::TestTask.new(:units => "db:test:prepare") do |t|

      t.libs << "test"

      t.verbose = true

      t.test_files = FileList['test/unit/repository*_test.rb'] + FileList['test/unit/lib/redmine/scm/**/*_test.rb']

    end

    Rake::Task['test:scm:units'].comment = "Run the scm unit tests"

    Rake::TestTask.new(:functionals => "db:test:prepare") do |t|

      t.libs << "test"

      t.verbose = true

      t.test_files = FileList['test/functional/repositories*_test.rb']

    end

    Rake::Task['test:scm:functionals'].comment = "Run the scm functional tests"

  end

end