Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/cheerio-select/node_modules/CSSselect/test/tools/helper.js

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/cheerio-select/node_modules/CSSselect/test/tools/helper.js
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/cheerio-select/node_modules/CSSselect/test/tools/helper.js b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/cheerio-select/node_modules/CSSselect/test/tools/helper.js
new file mode 100644
index 0000000000000000000000000000000000000000..0b08e98a5555c19123f5e3dac90cdb446ed2939f
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/cheerio-select/node_modules/CSSselect/test/tools/helper.js
@@ -0,0 +1,51 @@
+var fs = require("fs"),
+    path = require("path"),
+    htmlparser2 = require("htmlparser2"),
+    DomUtils = htmlparser2.DomUtils,
+    CSSselect = require("../../");
+
+function getDOMFromPath(path, options){
+	return htmlparser2.parseDOM(fs.readFileSync(path).toString(), options);
+}
+
+module.exports = {
+	CSSselect: CSSselect,
+	getFile: function(name, options){
+		return getDOMFromPath(path.join(__dirname, "docs", name), options);
+	},
+	getDOMFromPath: getDOMFromPath,
+	getDOM: htmlparser2.parseDOM,
+	getDefaultDom: function(){
+		return htmlparser2.parseDOM(
+			"<elem id=foo><elem class='bar baz'><tag class='boom'> This is some simple text </tag></elem></elem>"
+		);
+	},
+	getDocument: function(path){
+		var document = getDOMFromPath(path);
+
+		document.getElementsByTagName = function(name){
+			return DomUtils.getElementsByTagName("*", document);
+		};
+		document.getElementById = function(id){
+			return DomUtils.getElementById(id, document);
+		};
+		document.createTextNode = function(content){
+			return {
+				type: "text",
+				data: "content"
+			};
+		};
+		document.createElement = function(name){
+			return {
+				type: "tag",
+				name: name,
+				children: [],
+				attribs: {}
+			};
+		};
+		document.body = DomUtils.getElementsByTagName("body", document, true, 1)[0];
+		document.documentElement = document.filter(DomUtils.isTag)[0];
+
+		return document;
+	}
+};