mock-dom.js
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	var wgxpath = require('wgxpath');
	var Promise = require('bluebird');
	var jsdom = require('node-jsdom');
	var DOMParser = require('xmldom').DOMParser;
	var fs = Promise.promisifyAll(require('fs'));
	var path = require('path');
	var HiveHelper = require('./hive-helper');

	var clientLoadCallback;
	var hiveHelper;

	function MockDOM() {
	//expose to client.
	dom = this;
	}

	MockDOM.prototype.load = load;
	MockDOM.prototype.loadData = loadData;


	/**
	* load files.
	*/
	function load(url, jsIncludes, onLoad) {
	clientLoadCallback = onLoad;
	jsdom.env(url, jsIncludes, main);
	}

	/**
	* called when files are loaded.
	*/
	function main(errors, window) {

	// -- setup other items such as window. -- //
	wgxpath.install(window, true);
	window.DOMParser = DOMParser;
	hiveHelper = new HiveHelper(window);

	dom.hiveHelper = hiveHelper;
	dom.window = window;

	// -- core dom ready -- //
	clientLoadCallback(window);
	}

	/**
	* utility for loading absolute path.
	*/
	function getAbsolutePath(relativePath) {
	return path.join(__dirname, relativePath);
	}


	function loadData(filename) {
	var absPath = getAbsolutePath(filename);

	// -- create a promise after loading and parsing the file. --//
	var promise = new Promise(function (resolve, reject) {

	fs.readFileAsync(absPath)
	.then(function (data) {
	var str = String(data);

	var results = {
	error: false,
	data: str
	};

	resolve(results);
	});
	});

	return promise;
	}


	// -- singleton -- //
	module.exports = new MockDOM();