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# Paste me into spec_helper.rb, or save me somewhere else and require me in. class BeValidXhtml # require 'action_controller/test_process' # require 'test/unit' require 'net/http' require 'md5' require 'ftools' def initialize(options) @fragment = options[:fragment] end # Assert that markup (html/xhtml) is valid according the W3C validator web service. # By default, it validates the contents of @response.body, which is set after calling # one of the get/post/etc helper methods. You can also pass it a string to be validated. # Validation errors, if any, will be included in the output. The input fragment and # response from the validator service will be cached in the $RAILS_ROOT/tmp directory to # minimize network calls. # # For example, if you have a FooController with an action Bar, put this in foo_controller_test.rb: # # def test_bar_valid_markup # get :bar # assert_valid_markup # end # MARKUP_VALIDATOR_HOST = ENV['MARKUP_VALIDATOR_HOST'] || 'validator.w3.org' MARKUP_VALIDATOR_PATH = ENV['MARKUP_VALIDATOR_PATH'] || '/check' CSS_VALIDATOR_HOST = ENV['CSS_VALIDATOR_HOST'] || 'jigsaw.w3.org' CSS_VALIDATOR_PATH = ENV['CSS_VALIDATOR_PATH'] || '/css-validator/validator' @@display_invalid_content = false cattr_accessor :display_invalid_content @@auto_validate = false cattr_accessor :auto_validate class_inheritable_accessor :auto_validate_excludes class_inheritable_accessor :auto_validate_includes def matches?(response) fn = response.rendered_file fragment = response.body fragment = wrap_with_xhtml_header(fragment) if @fragment return true if validity_checks_disabled? base_filename = cache_resource('markup',fragment,'html',fn) return false unless base_filename results_filename = base_filename + '-results.yml' begin response = File.open(results_filename) do |f| Marshal.load(f) end rescue response = http.start(MARKUP_VALIDATOR_HOST).post2(MARKUP_VALIDATOR_PATH, "fragment=#{CGI.escape(fragment)}&output=xml") File.open(results_filename, 'w+') do |f| Marshal.dump(response, f) end end markup_is_valid = response['x-w3c-validator-status'] == 'Valid' @message = '' unless markup_is_valid fragment.split($/).each_with_index{|line, index| message << "#{'%04i' % (index+1)} : #{line}#{$/}"} if @@display_invalid_content @message << XmlSimple.xml_in(response.body)['messages'][0]['msg'].collect{ |m| "Invalid markup: line #{m['line']}: #{CGI.unescapeHTML(m['content'])}" }.join("\n") end if markup_is_valid return true else return false end end def wrap_with_xhtml_header(fragment) ret = <<-EOS <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head> <title>Test</title> </head> <body> #{fragment} </body> </html> EOS end def description "be valid xhtml" end def failure_message " expected xhtml to be valid, but validation produced these errors:\n #{@message}" end def negative_failure_message " expected to not be valid, but was (missing validation?)" end private def validity_checks_disabled? ENV["NET"] != 'true' end def text_to_multipart(key,value) return "Content-Disposition: form-data; name=\"#{CGI::escape(key)}\"\r\n\r\n#{value}\r\n" end def file_to_multipart(key,filename,mime_type,content) return "Content-Disposition: form-data; name=\"#{CGI::escape(key)}\"; filename=\"#{filename}\"\r\n" + "Content-Transfer-Encoding: binary\r\nContent-Type: #{mime_type}\r\n\r\n#{content}\r\n" end def cache_resource(base,resource,extension,fn) resource_md5 = MD5.md5(resource).to_s file_md5 = nil output_dir = "#{RAILS_ROOT}/tmp/#{base}" base_filename = File.join(output_dir, fn) filename = base_filename + extension parent_dir = File.dirname(filename) File.makedirs(parent_dir) unless File.exists?(parent_dir) File.open(filename, 'r') do |f| file_md5 = MD5.md5(f.read(f.stat.size)).to_s end if File.exists?(filename) if file_md5 != resource_md5 Dir["#{base_filename}[^.]*"] .each {|f| File.delete(f)} File.open(filename, 'w+') do |f| f.write(resource); end end base_filename end def http if Module.constants.include?("ApplicationConfig") && ApplicationConfig.respond_to?(:proxy_config) Net::HTTP::Proxy(ApplicationConfig.proxy_config['host'], ApplicationConfig.proxy_config['port']) else Net::HTTP end end end def be_valid_xhtml BeValidXhtml.new end def be_valid_xhtml_fragment BeValidXhtml.new(:fragment => true) end