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require "isolation/abstract_unit"

module ApplicationTests
  class RakeTest < Test::Unit::TestCase
    include ActiveSupport::Testing::Isolation

    def setup
      build_app
      boot_rails
      FileUtils.rm_rf("#{app_path}/config/environments")
    end

    def test_gems_tasks_are_loaded_first_than_application_ones
      app_file "lib/tasks/app.rake", <<-RUBY
        $task_loaded = Rake::Task.task_defined?("db:create:all")
      RUBY

      require "#{app_path}/config/environment"
      ::Rails.application.load_tasks
      assert $task_loaded
    end

    def test_environment_is_required_in_rake_tasks
      app_file "config/environment.rb", <<-RUBY
        SuperMiddleware = Struct.new(:app)

        AppTemplate::Application.configure do
          config.middleware.use SuperMiddleware
        end

        AppTemplate::Application.initialize!
      RUBY

      assert_match "SuperMiddleware", Dir.chdir(app_path){ `rake middleware` }
    end

    def test_initializers_are_executed_in_rake_tasks
      add_to_config <<-RUBY
        initializer "do_something" do
          puts "Doing something..."
        end

        rake_tasks do
          task :do_nothing => :environment do
          end
        end
      RUBY

      output = Dir.chdir(app_path){ `rake do_nothing` }
      assert_match "Doing something...", output
    end

    def test_code_statistics_sanity
      assert_match "Code LOC: 5     Test LOC: 0     Code to Test Ratio: 1:0.0",
        Dir.chdir(app_path){ `rake stats` }
    end

    def test_rake_routes_output_strips_anchors_from_http_verbs
      app_file "config/routes.rb", <<-RUBY
        AppTemplate::Application.routes.draw do
          get '/cart', :to => 'cart#show'
        end
      RUBY
      assert_match 'cart GET /cart(.:format)', Dir.chdir(app_path){ `rake routes` }
    end

    def test_model_and_migration_generator_with_change_syntax
      Dir.chdir(app_path) do
        `rails generate model user username:string password:string`
        `rails generate migration add_email_to_users email:string`
      end

      output = Dir.chdir(app_path){ `rake db:migrate` }
      assert_match /create_table\(:users\)/, output
      assert_match /CreateUsers: migrated/, output
      assert_match /add_column\(:users, :email, :string\)/, output
      assert_match /AddEmailToUsers: migrated/, output

      output = Dir.chdir(app_path){ `rake db:rollback STEP=2` }
      assert_match /drop_table\("users"\)/, output
      assert_match /CreateUsers: reverted/, output
      assert_match /remove_column\("users", :email\)/, output
      assert_match /AddEmailToUsers: reverted/, output
    end

    def test_loading_specific_fixtures
      Dir.chdir(app_path) do
        `rails generate model user username:string password:string`
        `rails generate model product name:string`
        `rake db:migrate`
      end

      require "#{rails_root}/config/environment"
      
      # loading a specific fixture
      errormsg = Dir.chdir(app_path) { `rake db:fixtures:load FIXTURES=products` }
      assert $?.success?, errormsg

      assert_equal 2, ::AppTemplate::Application::Product.count
      assert_equal 0, ::AppTemplate::Application::User.count
    end
  end
end