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path: root/railties/test/application/paths_test.rb
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require "isolation/abstract_unit"

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

    def setup
      build_app
      boot_rails
      FileUtils.rm_rf("#{app_path}/config/environments")
      app_file "config/environments/development.rb", ""
      add_to_config <<-RUBY
        config.root = "#{app_path}"
        config.after_initialize do
          ActionController::Base.session_store = nil
        end
      RUBY
      use_frameworks [:action_controller, :action_view, :action_mailer, :active_record]
      require "#{app_path}/config/environment"
      @paths = Rails.application.config.paths
    end

    def root(*path)
      app_path(*path).to_s
    end

    def assert_path(paths, *dir)
      assert_equal [root(*dir)], paths.paths
    end

    def assert_in_load_path(*path)
      assert $:.any? { |p| File.expand_path(p) == root(*path) }, "Load path does not include '#{root(*path)}'. They are:\n-----\n #{$:.join("\n")}\n-----"
    end

    def assert_not_in_load_path(*path)
      assert !$:.any? { |p| File.expand_path(p) == root(*path) }, "Load path includes '#{root(*path)}'. They are:\n-----\n #{$:.join("\n")}\n-----"
    end

    test "booting up Rails yields a valid paths object" do
      assert_path @paths.app.models, "app", "models"
      assert_path @paths.app.metals, "app", "metal"
      assert_path @paths.app.helpers, "app", "helpers"
      assert_path @paths.app.views, "app", "views"
      assert_path @paths.lib, "lib"
      assert_path @paths.vendor, "vendor"
      assert_path @paths.vendor.plugins, "vendor", "plugins"
      assert_path @paths.tmp, "tmp"
      assert_path @paths.tmp.cache, "tmp", "cache"
      assert_path @paths.config, "config"
      assert_path @paths.config.locales, "config", "locales", "en.yml"
      assert_path @paths.config.environment, "config", "environments", "development.rb"

      assert_equal root("app", "controllers"), @paths.app.controllers.to_a.first
      assert_equal Pathname.new(File.dirname(__FILE__)).join("..", "..", "builtin", "rails_info").expand_path,
        Pathname.new(@paths.app.controllers.to_a[1]).expand_path
    end

    test "booting up Rails yields a list of paths that are eager" do
      assert @paths.app.eager_load?
      assert @paths.app.controllers.eager_load?
      assert @paths.app.helpers.eager_load?
    end

    test "environments has a glob equal to the current environment" do
      assert_equal "#{Rails.env}.rb", @paths.config.environment.glob
    end

    test "load path includes each of the paths in config.paths as long as the directories exist" do
      assert_in_load_path "app", "controllers"
      assert_in_load_path "app", "models"
      assert_in_load_path "app", "helpers"
      assert_in_load_path "lib"
      assert_in_load_path "vendor"

      assert_not_in_load_path "app", "metal"
      assert_not_in_load_path "config"
      assert_not_in_load_path "config", "locales"
      assert_not_in_load_path "config", "environments"
      assert_not_in_load_path "tmp"
      assert_not_in_load_path "tmp", "cache"
    end

    test "controller paths include builtin in development mode" do
      Rails.env.replace "development"
      assert Rails::Application::Configuration.new("/").paths.app.controllers.paths.any? { |p| p =~ /builtin/ }
    end

    test "controller paths does not have builtin_directories in test mode" do
      Rails.env.replace "test"
      assert !Rails::Application::Configuration.new("/").paths.app.controllers.paths.any? { |p| p =~ /builtin/ }
    end

    test "controller paths does not have builtin_directories in production mode" do
      Rails.env.replace "production"
      assert !Rails::Application::Configuration.new("/").paths.app.controllers.paths.any? { |p| p =~ /builtin/ }
    end

  end
end