railties/test/application/rake/dev_test.rb


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require 'isolation/abstract_unit'

module ApplicationTests
  module RakeTests
    class RakeDevTest < ActiveSupport::TestCase
      include ActiveSupport::Testing::Isolation

      def setup
        build_app
        boot_rails
      end

      def teardown
        teardown_app
      end

      test 'dev:cache creates file and outputs message' do
        Dir.chdir(app_path) do
          output = `rake dev:cache`
          assert File.exist?('tmp/caching-dev.txt')
          assert_match(/Development mode is now being cached/, output)
        end
      end

      test 'dev:cache deletes file and outputs message' do
        Dir.chdir(app_path) do
          output = `rake dev:cache`        
          output = `rake dev:cache`
          assert_not File.exist?('tmp/caching-dev.txt')
          assert_match(/Development mode is no longer being cached/, output)
        end
      end
    end
  end
end