abstract_unit.rb

# frozen_string_literal: true

$:.unshift File.expand_path("lib", __dir__)
$:.unshift File.expand_path("fixtures/helpers", __dir__)
$:.unshift File.expand_path("fixtures/alternate_helpers", __dir__)

require "active_support/core_ext/kernel/reporting"

# These are the normal settings that will be set up by Railties
# TODO: Have these tests support other combinations of these values
silence_warnings do
  Encoding.default_internal = Encoding::UTF_8
  Encoding.default_external = Encoding::UTF_8
end

require "drb"
begin
  require "drb/unix"
rescue LoadError
  puts "'drb/unix' is not available"
end

if ENV["TRAVIS"]
  PROCESS_COUNT = 0
else
  PROCESS_COUNT = (ENV["N"] || 4).to_i
end

require "active_support/testing/autorun"
require "abstract_controller"
require "abstract_controller/railties/routes_helpers"
require "action_controller"
require "action_view"
require "action_view/testing/resolvers"
require "action_dispatch"
require "active_support/dependencies"
require "active_model"

require "pp" # require 'pp' early to prevent hidden_methods from not picking up the pretty-print methods until too late

module Rails
  class << self
    def env
      @_env ||= ActiveSupport::StringInquirer.new(ENV["RAILS_ENV"] || ENV["RACK_ENV"] || "test")
    end

    def root; end
  end
end

ActiveSupport::Dependencies.hook!

Thread.abort_on_exception = true

# Show backtraces for deprecated behavior for quicker cleanup.
ActiveSupport::Deprecation.debug = true

# Disable available locale checks to avoid warnings running the test suite.
I18n.enforce_available_locales = false

FIXTURE_LOAD_PATH = File.join(__dir__, "fixtures")

SharedTestRoutes = ActionDispatch::Routing::RouteSet.new

SharedTestRoutes.draw do
  ActiveSupport::Deprecation.silence do
    get ":controller(/:action)"
  end
end

module ActionDispatch
  module SharedRoutes
    def before_setup
      @routes = SharedTestRoutes
      super
    end
  end
end

module ActiveSupport
  class TestCase
    if RUBY_ENGINE == "ruby" && PROCESS_COUNT > 0
      parallelize_me!
    end
  end
end

class RoutedRackApp
  attr_reader :routes

  def initialize(routes, &blk)
    @routes = routes
    @stack = ActionDispatch::MiddlewareStack.new(&blk).build(@routes)
  end

  def call(env)
    @stack.call(env)
  end
end

class ActionDispatch::IntegrationTest < ActiveSupport::TestCase
  def self.build_app(routes = nil)
    RoutedRackApp.new(routes || ActionDispatch::Routing::RouteSet.new) do |middleware|
      middleware.use ActionDispatch::ShowExceptions, ActionDispatch::PublicExceptions.new("#{FIXTURE_LOAD_PATH}/public")
      middleware.use ActionDispatch::DebugExceptions
      middleware.use ActionDispatch::Callbacks
      middleware.use ActionDispatch::Cookies
      middleware.use ActionDispatch::Flash
      middleware.use Rack::MethodOverride
      middleware.use Rack::Head
      yield(middleware) if block_given?
    end
  end

  self.app = build_app

  app.routes.draw do
    ActiveSupport::Deprecation.silence do
      get ":controller(/:action)"
    end
  end

  class DeadEndRoutes < ActionDispatch::Routing::RouteSet
    # Stub Rails dispatcher so it does not get controller references and
    # simply return the controller#action as Rack::Body.
    class NullController < ::ActionController::Metal
      def self.dispatch(action, req, res)
        [200, { "Content-Type" => "text/html" }, ["#{req.params[:controller]}##{action}"]]
      end
    end

    class NullControllerRequest < ActionDispatch::Request
      def controller_class
        NullController
      end
    end

    def make_request(env)
      NullControllerRequest.new env
    end
  end

  def self.stub_controllers(config = ActionDispatch::Routing::RouteSet::DEFAULT_CONFIG)
    yield DeadEndRoutes.new(config)
  end

  def with_routing(&block)
    temporary_routes = ActionDispatch::Routing::RouteSet.new
    old_app, self.class.app = self.class.app, self.class.build_app(temporary_routes)
    old_routes = SharedTestRoutes
    silence_warnings { Object.const_set(:SharedTestRoutes, temporary_routes) }

    yield temporary_routes
  ensure
    self.class.app = old_app
    remove!
    silence_warnings { Object.const_set(:SharedTestRoutes, old_routes) }
  end

  def with_autoload_path(path)
    path = File.join(__dir__, "fixtures", path)
    if ActiveSupport::Dependencies.autoload_paths.include?(path)
      yield
    else
      begin
        ActiveSupport::Dependencies.autoload_paths << path
        yield
      ensure
        ActiveSupport::Dependencies.autoload_paths.reject! { |p| p == path }
        ActiveSupport::Dependencies.clear
      end
    end
  end
end

# Temporary base class
class Rack::TestCase < ActionDispatch::IntegrationTest
  def self.testing(klass = nil)
    if klass
      @testing = "/#{klass.name.underscore}".sub(/_controller$/, "")
    else
      @testing
    end
  end

  def get(thing, *args)
    if thing.is_a?(Symbol)
      super("#{self.class.testing}/#{thing}", *args)
    else
      super
    end
  end

  def assert_body(body)
    assert_equal body, Array(response.body).join
  end

  def assert_status(code)
    assert_equal code, response.status
  end

  def assert_response(body, status = 200, headers = {})
    assert_body body
    assert_status status
    headers.each do |header, value|
      assert_header header, value
    end
  end

  def assert_content_type(type)
    assert_equal type, response.headers["Content-Type"]
  end

  def assert_header(name, value)
    assert_equal value, response.headers[name]
  end
end

module ActionController
  class API
    extend AbstractController::Railties::RoutesHelpers.with(SharedTestRoutes)
  end

  class Base
    # This stub emulates the Railtie including the URL helpers from a Rails application
    extend AbstractController::Railties::RoutesHelpers.with(SharedTestRoutes)
    include SharedTestRoutes.mounted_helpers

    self.view_paths = FIXTURE_LOAD_PATH

    def self.test_routes(&block)
      routes = ActionDispatch::Routing::RouteSet.new
      routes.draw(&block)
      include routes.url_helpers
    end
  end

  class TestCase
    include ActionDispatch::TestProcess
    include ActionDispatch::SharedRoutes
  end
end

class ::ApplicationController < ActionController::Base
end

module ActionDispatch
  class DebugExceptions
    private
      remove_method :stderr_logger
      # Silence logger
      def stderr_logger
        nil
      end
  end
end

module ActionDispatch
  module RoutingVerbs
    def send_request(uri_or_host, method, path)
      host = uri_or_host.host unless path
      path ||= uri_or_host.path

      params = { "PATH_INFO" => path,
                 "REQUEST_METHOD" => method,
                 "HTTP_HOST" => host }

      routes.call(params)
    end

    def request_path_params(path, options = {})
      method = options[:method] || "GET"
      resp = send_request URI("http://localhost" + path), method.to_s.upcase, nil
      status = resp.first
      if status == 404
        raise ActionController::RoutingError, "No route matches #{path.inspect}"
      end
      controller.request.path_parameters
    end

    def get(uri_or_host, path = nil)
      send_request(uri_or_host, "GET", path)[2].join
    end

    def post(uri_or_host, path = nil)
      send_request(uri_or_host, "POST", path)[2].join
    end

    def put(uri_or_host, path = nil)
      send_request(uri_or_host, "PUT", path)[2].join
    end

    def delete(uri_or_host, path = nil)
      send_request(uri_or_host, "DELETE", path)[2].join
    end

    def patch(uri_or_host, path = nil)
      send_request(uri_or_host, "PATCH", path)[2].join
    end
  end
end

module RoutingTestHelpers
  def url_for(set, options)
    route_name = options.delete :use_route
    set.url_for options.merge(only_path: true), route_name
  end

  def make_set(strict = true)
    tc = self
    TestSet.new ->(c) { tc.controller = c }, strict
  end

  class TestSet < ActionDispatch::Routing::RouteSet
    class Request < DelegateClass(ActionDispatch::Request)
      def initialize(target, helpers, block, strict)
        super(target)
        @helpers = helpers
        @block = block
        @strict = strict
      end

      def controller_class
        helpers = @helpers
        block = @block
        Class.new(@strict ? super : ActionController::Base) {
          include helpers
          define_method(:process) { |name| block.call(self) }
          def to_a; [200, {}, []]; end
        }
      end
    end

    attr_reader :strict

    def initialize(block, strict = false)
      @block = block
      @strict = strict
      super()
    end

    private

      def make_request(env)
        Request.new super, url_helpers, @block, strict
      end
  end
end

class ResourcesController < ActionController::Base
  def index() head :ok end
  alias_method :show, :index
end

class CommentsController < ResourcesController; end
class AccountsController < ResourcesController; end
class ImagesController < ResourcesController; end

require "active_support/testing/method_call_assertions"

class ForkingExecutor
  class Server
    include DRb::DRbUndumped

    def initialize
      @queue = Queue.new
    end

    def record(reporter, result)
      reporter.record result
    end

    def <<(o)
      o[2] = DRbObject.new(o[2]) if o
      @queue << o
    end
    def pop; @queue.pop; end
  end

  def initialize(size)
    @size  = size
    @queue = Server.new
    file   = File.join Dir.tmpdir, tmpname
    @url   = "drbunix://#{file}"
    @pool  = nil
    DRb.start_service @url, @queue
  end

  def <<(work); @queue << work; end

  def shutdown
    pool = @size.times.map {
      fork {
        DRb.stop_service
        queue = DRbObject.new_with_uri @url
        while job = queue.pop
          klass    = job[0]
          method   = job[1]
          reporter = job[2]
          result = Minitest.run_one_method klass, method
          if result.error?
            translate_exceptions result
          end
          queue.record reporter, result
        end
      }
    }
    @size.times { @queue << nil }
    pool.each { |pid| Process.waitpid pid }
  end

  private
    def translate_exceptions(result)
      result.failures.map! { |e|
        begin
          Marshal.dump e
          e
        rescue TypeError
          ex = Exception.new e.message
          ex.set_backtrace e.backtrace
          Minitest::UnexpectedError.new ex
        end
      }
    end

    def tmpname
      t = Time.now.strftime("%Y%m%d")
      "rails-tests-#{t}-#{$$}-#{rand(0x100000000).to_s(36)}-fd"
    end
end

if RUBY_ENGINE == "ruby" && PROCESS_COUNT > 0
  # Use N processes (N defaults to 4)
  Minitest.parallel_executor = ForkingExecutor.new(PROCESS_COUNT)
end

class ActiveSupport::TestCase
  include ActiveSupport::Testing::MethodCallAssertions

  # Skips the current run on Rubinius using Minitest::Assertions#skip
  private def rubinius_skip(message = "")
    skip message if RUBY_ENGINE == "rbx"
  end
  # Skips the current run on JRuby using Minitest::Assertions#skip
  private def jruby_skip(message = "")
    skip message if defined?(JRUBY_VERSION)
  end
end

class DrivenByRackTest < ActionDispatch::SystemTestCase
  driven_by :rack_test
end

class DrivenBySeleniumWithChrome < ActionDispatch::SystemTestCase
  driven_by :selenium, using: :chrome
end

class DrivenBySeleniumWithHeadlessChrome < ActionDispatch::SystemTestCase
  driven_by :selenium, using: :headless_chrome
end

class DrivenBySeleniumWithHeadlessFirefox < ActionDispatch::SystemTestCase
  driven_by :selenium, using: :headless_firefox
end