# encoding: UTF-8

require 'helper'
require 'rails/generators'
require 'fileutils'

describe "generators" do
  def invoke_generator(*args)
    FileUtils.mkdir_p(output_path)

    args.push '--quiet'

    retval = Rails::Generators.invoke 'presenter', args,
      :behavior => :invoke,
      :destination_root => output_path

    assert retval, 'Generator must succeed'
    yield retval.drop(2)
  ensure
    FileUtils.rm_rf(output_path)
  end

  def output_path
    File.expand_path('../../tmp', __FILE__)
  end

  def file_contents(path)
    file_contents = File.read(File.join(output_path, path))
  end

  it "should generate a presenter and Test::Unit file" do
    Rails.application.config.generators do |g|
      g.test_framework :test_unit, :spec => true
    end

    invoke_generator 'post' do |files|
      files.must_equal %w(
        app/presenters/post_presenter.rb
        test/unit/presenters/post_presenter_test.rb
      )

      file_contents('app/presenters/post_presenter.rb').
        must_match /class PostPresenter < Keynote::Presenter/

      file_contents('test/unit/presenters/post_presenter_test.rb').
        must_match /class PostPresenterTest < Keynote::TestCase/
    end
  end

  it "should generate a presenter and RSpec file" do
    Rails.application.config.generators do |g|
      g.test_framework :rspec
    end

    invoke_generator 'post' do |files|
      files.must_equal %w(
        app/presenters/post_presenter.rb
        spec/presenters/post_presenter_spec.rb
      )

      file_contents('app/presenters/post_presenter.rb').
        must_match /class PostPresenter < Keynote::Presenter/

      file_contents('spec/presenters/post_presenter_spec.rb').
        must_match /describe PostPresenter do/
    end
  end

  # Temporary workaround until MT::R supports MT5 and Rails 4.1
  unless Rails::VERSION.to_s.start_with? "4.1.0"
    it "should generate a presenter and MiniTest::Rails spec file" do
      Rails.application.config.generators do |g|
        g.test_framework :mini_test, :spec => true
      end

      invoke_generator 'post' do |files|
        files.must_equal %w(
          app/presenters/post_presenter.rb
          test/presenters/post_presenter_test.rb
        )

        file_contents('app/presenters/post_presenter.rb').
          must_match /class PostPresenter < Keynote::Presenter/

        file_contents('test/presenters/post_presenter_test.rb').
          must_match /describe PostPresenter do/
      end
    end

    it "should generate a presenter and MiniTest::Rails unit file" do
      Rails.application.config.generators do |g|
        g.test_framework :mini_test, :spec => false
      end

      invoke_generator 'post' do |files|
        files.must_equal %w(
          app/presenters/post_presenter.rb
          test/presenters/post_presenter_test.rb
        )

        file_contents('app/presenters/post_presenter.rb').
          must_match /class PostPresenter < Keynote::Presenter/

        file_contents('test/presenters/post_presenter_test.rb').
          must_match /class PostPresenterTest < Keynote::TestCase/
      end
    end
  end
end