Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/tests/test-helper.js

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/tests/test-helper.js
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/tests/test-helper.js b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/tests/test-helper.js
new file mode 100644
index 0000000000000000000000000000000000000000..ccf98041fa3aa318d73ded74816457e6e144d63d
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/tests/test-helper.js
@@ -0,0 +1,38 @@
+var htmlparser = require(".."),
+	Parser = htmlparser.Parser,
+	CollectingHandler = htmlparser.CollectingHandler,
+	chunkSize = 5;
+
+exports.writeToParser = function(handler, options, data){
+	var parser = new Parser(handler, options);
+	//first, try to run the test via chunks
+	for(var i = 0; i < data.length; i += chunkSize){
+		parser.write(data.substr(i, chunkSize));
+	}
+	parser.end();
+	//then parse everything
+	parser.parseComplete(data);
+};
+
+//returns a tree structure
+exports.getEventCollector = function(cb){
+	var handler = new CollectingHandler({onerror: cb, onend: function(){
+		cb(null, handler.events
+			.reduce(function(events, arr){
+				if(arr[0] === "onerror" || arr[0] === "onend");
+				else if(arr[0] === "ontext" && events.length && events[events.length-1].event === "text"){
+					events[events.length-1].data[0] += arr[1];
+				} else {
+					events.push({
+						event: arr[0].slice(2),
+						data: arr.slice(1)
+					});
+				}
+
+				return events;
+			}, [])
+		);
+	}});
+
+	return handler;
+};