Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/runtests.js

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/runtests.js
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/runtests.js b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/runtests.js
new file mode 100644
index 0000000000000000000000000000000000000000..a531cefd3997c90a62734385c4c6cde69096df2a
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/domhandler/runtests.js
@@ -0,0 +1,51 @@
+var fs = require("fs"),
+    path = require("path"),
+    assert = require("assert"),
+    Parser = require("htmlparser2").Parser,
+    Handler = require("./");
+
+var basePath = path.resolve(__dirname, "tests"),
+    chunkSize = 5;
+
+fs
+.readdirSync(basePath)
+.filter(RegExp.prototype.test, /\.json$/) //only allow .json files
+.map(function(name){
+	return path.resolve(basePath, name);
+})
+.map(require)
+.forEach(function(test){
+	console.log("Testing:", test.name);
+
+	var handler = new Handler(function(err, dom){
+		assert.ifError(err);
+		compare(test.expected, dom);
+	}, test.options.handler);
+
+	var data = test.html;
+
+	var parser = new Parser(handler, test.options.parser);
+
+	//first, try to run the test via chunks
+	for(var i = 0; i < data.length; i+=chunkSize){
+		parser.write(data.substring(i, i + chunkSize));
+	}
+	parser.done();
+
+	//then parse everything
+	parser.parseComplete(data);
+});
+
+console.log("\nAll tests passed!");
+
+function compare(expected, result){
+	assert.equal(typeof expected, typeof result, "types didn't match");
+	if(typeof expected !== "object" || expected === null){
+		assert.strictEqual(expected, result, "result doesn't equal expected");
+	} else {
+		for(var prop in expected){
+			assert.ok(prop in result, "result didn't contain property " + prop);
+			compare(expected[prop], result[prop]);
+		}
+	}
+}