# HG changeset patch
# User Sonny Piers <sonny.piers@gmail.com>
# Date 1324245467 -3600
# Node ID f31a75c3b6c8b67fa60fd654da35ccc5f934b033
# Parent  96087680669f6c7ca089ae906978e55f07afe01d
code cleaning

diff --git a/lightstring.js b/lightstring.js
--- a/lightstring.js
+++ b/lightstring.js
@@ -1,13 +1,30 @@
 'use strict';
 
+/**
+  Copyright (c) 2011, Sonny Piers <sonny at fastmail dot net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
 var Lightstring = {
 	NS: {},
 	stanza: {},
 };
 
-Lightstring.Connection = function (aURL) {
+Lightstring.Connection = function (aService) {
   var parser = new DOMParser();
   var serializer = new XMLSerializer();
+  this.service = aService;
   this.handlers = {};
   this.iqid = 1024;
   this.getNewId = function() {
@@ -20,27 +37,48 @@ Lightstring.Connection = function (aURL)
   this.serialize = function(elm) {
     return serializer.serializeToString(elm);
   };
-  this.connect = function(jid, password) {
-    this.domain = jid.split('@')[1];
-    this.node = jid.split('@')[0];
-    this.jid = jid;
-    this.password = password;
-    if(typeof WebSocket === 'undefined')
-      this.socket = new MozWebSocket(aURL);
+  this.connect = function(aJid, aPassword) {
+    if(aJid)
+      this.jid = aJid;
+    if(this.jid) {
+      this.domain = this.jid.split('@')[1];
+      this.node = this.jid.split('@')[0];
+      this.resource = this.jid.split('/')[1];
+    }
+    if(aPassword)
+      this.password = aPassword;
+
+    if(!this.jid)
+      throw "Lightstring: Connection.jid is undefined.";
+    if(!this.password)
+      throw "Lightstring: Connection.password is undefined.";
+    if(!this.service)
+      throw "Lightstring: Connection.service is undefined.";
+
+    //"Bug 695635 - tracking bug: unprefix WebSockets" https://bugzil.la/695635   
+    if(MozWebSocket)
+      this.socket = new MozWebSocket(this.service);
+    else if(WebSocket)
+      this.socket = new WebSocket(this.service);
     else
-      this.socket = new WebSocket(aURL);
+      this.emit('error', 'No WebSocket support.');
 
     var that = this;
     this.socket.addEventListener('open', function() {
-      that.emit('open');
-      that.send("<stream:stream to='"+that.domain+"' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0' />");
+      that.emit('connecting');
+      //FIXME there shouldn't be an ending "/"
+      that.send(
+        "<stream:stream to='"+that.domain+"'\
+                        xmlns='jabber:client'\
+                        xmlns:stream='http://etherx.jabber.org/streams'\
+                        version='1.0'/>"
+      );
     });
-    this.socket.addEventListener('error', function(err) {
-      that.emit('error');
+    this.socket.addEventListener('error', function(e) {
+      that.emit('error', e.data);
     });
-    this.socket.addEventListener('close', function(close) {
-			that.emit('close');
-			that.emit('disconnected');
+    this.socket.addEventListener('close', function(e) {
+			that.emit('disconnected', e.data);
     });
     this.socket.addEventListener('message', function(e) {
       that.emit('XMLInput', e.data);
@@ -48,29 +86,21 @@ Lightstring.Connection = function (aURL)
       that.emit('DOMInput', elm);
       that.emit(elm.tagName, elm);
 
-			if((elm.tagName === 'iq'))
+			if(elm.tagName === 'iq')
 				that.emit(elm.getAttribute('id'), elm);
     });
   };
-  
-
-  
-  this.send = function(stanza, callback) {
-    //FIXME support for E4X
-    //~ if(typeof stanza === 'xml') {
-      //~ stanza = stanza.toXMLString();
-    //~ }
-    if(stanza.cnode) {
-			stanza = stanza.toString();
-			//~ console.log(typeof stanza);
-		}
-    if(typeof stanza === 'string') {
-      var str = stanza;
-      var elm = this.parse(stanza);
+  this.send = function(aStanza, aCallback) {
+    if(typeof aStanza === 'string') {
+      var str = aStanza;
+      var elm = this.parse(str);
+    }
+    else if(aStanza instanceof Element) {
+      var elm = aStanza;
+      var str = this.serialize(elm);
     }
     else {
-      var elm = stanza;
-      var str = this.serialize(stanza);
+      that.emit('error', 'Unsupported data type.');
     }
     
     
@@ -80,7 +110,11 @@ Lightstring.Connection = function (aURL)
         elm.setAttribute('id', this.getNewId())
         str = this.serialize(elm)
       }
-      if(callback) this.on(elm.getAttribute('id'), callback);
+      if(aCallback)
+        this.on(elm.getAttribute('id'), aCallback);
+    }
+    else if(aCallback) {
+      that.emit('warning', 'Callback can\'t be called with non-iq stanza.');
     }
     
     
@@ -89,11 +123,11 @@ Lightstring.Connection = function (aURL)
     this.emit('DOMOutput', elm);
   };
   this.disconnect = function() {
+		this.emit('disconnecting');
 		this.send('</stream:stream>');
-		this.emit('disconnected');
 		this.socket.close();
+    this.emit('disconnected');
 	};
-  //FIXME Callbacks sucks, better idea?
   this.emit = function(name, data) {
     var handlers = this.handlers[name];
     if(!handlers)
@@ -130,27 +164,53 @@ Lightstring.Connection = function (aURL)
       
       //FIXME support SCRAM-SHA1 && allow specify method preferences  
       if('DIGEST-MD5' in mechanisms)
-        that.send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='DIGEST-MD5'/>");
+        that.send(
+          "<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl'\
+                 mechanism='DIGEST-MD5'/>"
+        );
       else if('PLAIN' in mechanisms) {
-        var token = btoa(that.jid + "\u0000" + that.jid.split('@')[0] + "\u0000" + that.password);
-        that.send("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>"+token+"</auth>");
+        var token = btoa(
+          that.jid +
+          "\u0000" +
+          that.jid.node +
+          "\u0000" + 
+          that.password
+        );
+        that.send(
+          "<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl'\
+                 mechanism='PLAIN'>"+token+"</auth>"
+        );
       }
     }
     //XMPP features
     else {
       that.emit('features', stanza);
       //Bind http://xmpp.org/rfcs/rfc3920.html#bind
-      that.send("<iq type='set' xmlns='jabber:client'><bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'/></iq>", function() {
+      that.send(
+        "<iq type='set' xmlns='jabber:client'>\
+          <bind xmlns='urn:ietf:params:xml:ns:xmpp-bind'/>\
+         </iq>",
+        function() {
         //Session http://xmpp.org/rfcs/rfc3921.html#session
-        that.send("<iq type='set' xmlns='jabber:client'><session xmlns='urn:ietf:params:xml:ns:xmpp-session'/></iq>", function() {
-          that.emit('connected');
-        });
+        that.send(
+          "<iq type='set' xmlns='jabber:client'>\
+            <session xmlns='urn:ietf:params:xml:ns:xmpp-session'/>\
+          </iq>",
+          function() {
+            that.emit('connected');
+          }
+        );
       });
     }
   });
   //Internal
   this.on('success', function(stanza, that) {
-    that.send("<stream:stream to='"+that.domain+"' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0' />");
+    that.send(
+      "<stream:stream to='"+that.domain+"'\
+                      xmlns='jabber:client'\
+                      xmlns:stream='http://etherx.jabber.org/streams'\
+                      version='1.0' />"
+    );
   });
   //Internal
   this.on('challenge', function(stanza, that) {
@@ -195,7 +255,6 @@ Lightstring.Connection = function (aURL)
     if (host !== null) {
         digest_uri = digest_uri + "/" + host;
     }
-
     var A1 = MD5.hash(that.node +
                       ":" + realm + ":" + that.password) +
         ":" + nonce + ":" + cnonce;
@@ -215,7 +274,9 @@ Lightstring.Connection = function (aURL)
                       cnonce + ":auth:" +
                       MD5.hexdigest(A2))) + ',';
     responseText += 'charset="utf-8"';
-
-    that.send("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>"+btoa(responseText)+"</response>");
+    that.send(
+      "<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>"
+        +btoa(responseText)+
+      "</response>");
   });
 };
diff --git a/plugins.js b/plugins.js
--- a/plugins.js
+++ b/plugins.js
@@ -1,15 +1,31 @@
 'use strict';
 
+/**
+  Copyright (c) 2011, Sonny Piers <sonny at fastmail dot net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
 //
 //Roster
 //
 Lighstring.NS.roster = 'jabber:iq:roster';
 Lighstring.stanza.roster = {
 	'get': function() {
-		return "<iq type='get'><query xmlns='"+Mango.NS.roster+"'/></iq>";
+		return "<iq type='get'><query xmlns='"+Lightstring.NS.roster+"'/></iq>";
 	},
 	add: function(aAddress, aGroups, aCustomName) {
-		var iq = $iq({type: 'set'}).c('query', {xmlns: Mango.NS.roster}).c('item', {jid: aAddress}).tree();
+		var iq = $iq({type: 'set'}).c('query', {xmlns: Lightstring.NS.roster}).c('item', {jid: aAddress}).tree();
 		if(aCustomName) iq.querySelector('item').setAttribute(aCustomName);
 		for (var i=0; i<aGroups.length; i++) {
 			if(i === 0) iq.querySelector('item').appendChild(document.createElement('group'));
@@ -18,7 +34,7 @@ Lighstring.stanza.roster = {
 		return iq;
 	},
 	remove: function(aAddress) {
-		return $iq({type: 'set'}).c('query', {xmlns: Mango.NS.roster}).c('item', {jid: aAddress, subscription: 'remove'}).tree();
+		return $iq({type: 'set'}).c('query', {xmlns: Lightstring.NS.roster}).c('item', {jid: aAddress, subscription: 'remove'}).tree();
 	}
 };
 Lighstring.getRoster = function(connection, aCallback) {
@@ -55,14 +71,14 @@ Lighstring.NS.vcard = 'vcard-temp';
 Lighstring.stanza.vcard = {
 	'get': function(aTo) {
 		if(aTo)
-			return "<iq type='get' to='"+aTo+"'><vCard xmlns='"+Mango.NS.vcard+"'/></iq>";
+			return "<iq type='get' to='"+aTo+"'><vCard xmlns='"+Lightstring.NS.vcard+"'/></iq>";
 		else
-			return "<iq type='get'><vCard xmlns='"+Mango.NS.vcard+"'/></iq>";
+			return "<iq type='get'><vCard xmlns='"+Lightstring.NS.vcard+"'/></iq>";
 	}
 };
 //FIXME we should return a proper vcard, not an XMPP one
 Lighstring.getVcard = function(aConnection, aTo, aCallback) {
-	aConnection.send(Mango.stanza.vcard.get(aTo), function(answer, err){
+	aConnection.send(Lightstring.stanza.vcard.get(aTo), function(answer, err){
 		if(answer) {
 			var vcard = answer.querySelector('vCard');
 			if(vcard)
@@ -85,9 +101,9 @@ Lighstring.stanza.disco = {
 			var iq = "<iq type='get'>";
 		
 		if(aNode)
-			var query = "<query xmlns='"+Mango.NS['disco#items']+"' node='"+aNode+"'/>";
+			var query = "<query xmlns='"+Lightstring.NS['disco#items']+"' node='"+aNode+"'/>";
 		else
-			var query = "<query xmlns='"+Mango.NS['disco#items']+"'/>";
+			var query = "<query xmlns='"+Lightstring.NS['disco#items']+"'/>";
 			
 		return iq+query+"</iq>";
 	},
@@ -97,15 +113,15 @@ Lighstring.stanza.disco = {
 		else
 			var iq = "<iq type='get'>";
 		if(aNode)
-			var query = "<query xmlns='"+Mango.NS['disco#info']+"' node='"+aNode+"'/>";
+			var query = "<query xmlns='"+Lightstring.NS['disco#info']+"' node='"+aNode+"'/>";
 		else
-			var query = "<query xmlns='"+Mango.NS['disco#info']+"'/>";
+			var query = "<query xmlns='"+Lightstring.NS['disco#info']+"'/>";
 			
 		return iq+query+"</iq>";
 	}
 };
 Lighstring.discoItems = function(aConnection, aTo, aCallback) {
-	aConnection.send(Mango.stanza.disco.items(aTo), function(answer){
+	aConnection.send(Lightstring.stanza.disco.items(aTo), function(answer){
 		var items = [];
 		answer.querySelectorAll('item').forEach(function(node) {
 			var item = {
@@ -120,7 +136,7 @@ Lighstring.discoItems = function(aConnec
 	});
 };
 Lighstring.discoInfo = function(aConnection, aTo, aNode, aCallback) {
-	aConnection.send(Mango.stanza.disco.info(aTo, aNode), function(answer){
+	aConnection.send(Lightstring.stanza.disco.info(aTo, aNode), function(answer){
 		var field = answer.querySelector('field[var="pubsub#creator"] > value');
 		var creator = field ? field.textContent : '';
 		//FIXME callback the entire data
@@ -135,27 +151,27 @@ Lighstring.NS.pubsub = "http://jabber.or
 Lighstring.NS.pubsub_owner = "http://jabber.org/protocol/pubsub#owner";
 Lighstring.stanza.pubsub = {
 	getConfig: function(aTo, aNode) {
-		return  "<iq type='get' to='"+aTo+"'><pubsub xmlns='"+Mango.NS.pubsub_owner+"'><configure node='"+aNode+"'/></pubsub></iq>";
+		return  "<iq type='get' to='"+aTo+"'><pubsub xmlns='"+Lightstring.NS.pubsub_owner+"'><configure node='"+aNode+"'/></pubsub></iq>";
 	},
 	items: function(aTo, aNode) {
-		return  "<iq type='get' to='"+aTo+"'><pubsub xmlns='"+Mango.NS.pubsub+"'><items node='"+aNode+"'/></pubsub></iq>";
+		return  "<iq type='get' to='"+aTo+"'><pubsub xmlns='"+Lightstring.NS.pubsub+"'><items node='"+aNode+"'/></pubsub></iq>";
 	},
 	affiliations: function(aTo, aNode) {
-		return "<iq type='get' to='"+aTo+"'><pubsub xmlns='"+Mango.NS.pubsub_owner+"'><affiliations node='"+aNode+"'/></pubsub></iq>";
+		return "<iq type='get' to='"+aTo+"'><pubsub xmlns='"+Lightstring.NS.pubsub_owner+"'><affiliations node='"+aNode+"'/></pubsub></iq>";
 	},
 	publish: function(aTo, aNode, aItem, aId) {
-		return  "<iq type='set' to='"+aTo+"'><pubsub xmlns='"+Mango.NS.pubsub+"'><publish node='"+aNode+"'><item id='"+aId+"'>"+aItem+"</item></publish></pubsub></iq>";
+		return  "<iq type='set' to='"+aTo+"'><pubsub xmlns='"+Lightstring.NS.pubsub+"'><publish node='"+aNode+"'><item id='"+aId+"'>"+aItem+"</item></publish></pubsub></iq>";
 	},
 	retract: function(aTo, aNode, aItem) {
-		return  "<iq type='set' to='"+aTo+"'><pubsub xmlns='"+Mango.NS.pubsub+"'><retract node='"+aNode+"'><item id='"+aItem+"'/></retract></pubsub></iq>";
+		return  "<iq type='set' to='"+aTo+"'><pubsub xmlns='"+Lightstring.NS.pubsub+"'><retract node='"+aNode+"'><item id='"+aItem+"'/></retract></pubsub></iq>";
 	},
 	'delete': function(aTo, aNode, aURI) {
-		return  "<iq type='set' to='"+aTo+"'><pubsub xmlns='"+Mango.NS.pubsub_owner+"'><delete node='"+aNode+"'/></pubsub></iq>";
+		return  "<iq type='set' to='"+aTo+"'><pubsub xmlns='"+Lightstring.NS.pubsub_owner+"'><delete node='"+aNode+"'/></pubsub></iq>";
 	},
 	create: function(aTo, aNode, aFields) {
-		var iq = "<iq type='set' to='"+aTo+"'><pubsub xmlns='"+Mango.NS.pubsub+"'><create node='"+aNode+"'/>";
+		var iq = "<iq type='set' to='"+aTo+"'><pubsub xmlns='"+Lightstring.NS.pubsub+"'><create node='"+aNode+"'/>";
 		if(aFields) {
-			iq += "<configure><x xmlns='"+Mango.NS.x+"' type='submit'>"
+			iq += "<configure><x xmlns='"+Lightstring.NS.x+"' type='submit'>"
 			aFields.forEach(function(field) {
 				iq += field;
 			});
@@ -165,7 +181,7 @@ Lighstring.stanza.pubsub = {
 		return iq;
 	},
 	setAffiliations: function(aTo, aNode, aAffiliations) {
-		var iq = "<iq type='set' to='"+aTo+"'><pubsub xmlns='"+Mango.NS.pubsub_owner+"'><affiliations node='"+aNode+"'>";
+		var iq = "<iq type='set' to='"+aTo+"'><pubsub xmlns='"+Lightstring.NS.pubsub_owner+"'><affiliations node='"+aNode+"'>";
 		for(var i = 0; i < aAffiliations.length; i++) {
 			iq += "<affiliation jid='"+aAffiliations[i][0]+"' affiliation='"+aAffiliations[i][1]+"'/>"
 		}
@@ -174,7 +190,7 @@ Lighstring.stanza.pubsub = {
 	},
 };
 Lighstring.pubsubItems = function(aConnection, aTo, aNode, aCallback) {
-	aConnection.send(Mango.stanza.pubsub.items(aTo, aNode), function(answer){
+	aConnection.send(Lightstring.stanza.pubsub.items(aTo, aNode), function(answer){
 		var items = [];
 		answer.querySelectorAll('item').forEach(function(node) {
 			var item = {
@@ -193,7 +209,7 @@ Lighstring.pubsubItems = function(aConne
 	});
 }
 Lighstring.pubsubCreate = function(aConnection, aTo, aNode, aFields, aCallback) {
-	aConnection.send(Mango.stanza.pubsub.create(aTo, aNode, aFields), function(answer) {
+	aConnection.send(Lightstring.stanza.pubsub.create(aTo, aNode, aFields), function(answer) {
 		if(answer.getAttribute('type') === 'result')
 			aCallback(null, answer);
 		else
@@ -201,7 +217,7 @@ Lighstring.pubsubCreate = function(aConn
 	});
 };
 Lighstring.pubsubConfig = function(aConnection, aTo, aNode, aCallback) {
-	aConnection.send(Mango.stanza.pubsub.getConfig(aTo, aNode), function(answer){
+	aConnection.send(Lightstring.stanza.pubsub.getConfig(aTo, aNode), function(answer){
 		var accessmodel = answer.querySelector('field[var="pubsub#access_model"]').lastChild.textContent;
 		if(accessmodel)
 			aCallback(accessmodel);
@@ -210,13 +226,13 @@ Lighstring.pubsubConfig = function(aConn
 	});
 }
 Lighstring.pubsubRetract = function(aConnection, aTo, aNode, aItem, aCallback) {
-	aConnection.send(Mango.stanza.pubsub.retract(aTo, aNode, aItem), function(answer){
+	aConnection.send(Lightstring.stanza.pubsub.retract(aTo, aNode, aItem), function(answer){
 		if(aCallback)
 			aCallback(answer);
 	});
 }
 Lighstring.pubsubPublish = function(aConnection, aTo, aNode, aItem, aId, aCallback) {
-	aConnection.send(Mango.stanza.pubsub.publish(aTo, aNode, aItem, aId), function(answer){
+	aConnection.send(Lightstring.stanza.pubsub.publish(aTo, aNode, aItem, aId), function(answer){
 		if(answer.getAttribute('type') === 'result')
 			aCallback(null, answer);
 		else
@@ -224,13 +240,13 @@ Lighstring.pubsubPublish = function(aCon
 	});
 }
 Lighstring.pubsubDelete = function(aConnection, aTo, aNode, aCallback) {
-	aConnection.send(Mango.stanza.pubsub.delete(aTo, aNode), function(answer){
+	aConnection.send(Lightstring.stanza.pubsub.delete(aTo, aNode), function(answer){
 		if(aCallback)
 			aCallback(answer);
 	});
 }
 Lighstring.pubsubGetAffiliations = function(aConnection, aTo, aNode, aCallback) {
-	aConnection.send(Mango.stanza.pubsub.affiliations(aTo, aNode), function(answer) {
+	aConnection.send(Lightstring.stanza.pubsub.affiliations(aTo, aNode), function(answer) {
 		if((answer.getAttribute('type') === 'result') && aCallback) {
 			var affiliations = {};
 			answer.querySelectorAll('affiliation').forEach(function(affiliation) {
@@ -241,7 +257,7 @@ Lighstring.pubsubGetAffiliations = funct
 	});
 };
 Lighstring.pubsubSetAffiliations = function(aConnection, aTo, aNode, aAffiliations, aCallback) {
-	aConnection.send(Mango.stanza.pubsub.setAffiliations(aTo, aNode, aAffiliations));
+	aConnection.send(Lightstring.stanza.pubsub.setAffiliations(aTo, aNode, aAffiliations));
 };
 //
 //IM
diff --git a/test/qunit.css b/test/qunit.css
new file mode 100644
--- /dev/null
+++ b/test/qunit.css
@@ -0,0 +1,226 @@
+/**
+ * QUnit v1.2.0 - A JavaScript Unit Testing Framework
+ *
+ * http://docs.jquery.com/QUnit
+ *
+ * Copyright (c) 2011 John Resig, Jörn Zaefferer
+ * Dual licensed under the MIT (MIT-LICENSE.txt)
+ * or GPL (GPL-LICENSE.txt) licenses.
+ */
+
+/** Font Family and Sizes */
+
+#qunit-tests, #qunit-header, #qunit-banner, #qunit-testrunner-toolbar, #qunit-userAgent, #qunit-testresult {
+	font-family: "Helvetica Neue Light", "HelveticaNeue-Light", "Helvetica Neue", Calibri, Helvetica, Arial, sans-serif;
+}
+
+#qunit-testrunner-toolbar, #qunit-userAgent, #qunit-testresult, #qunit-tests li { font-size: small; }
+#qunit-tests { font-size: smaller; }
+
+
+/** Resets */
+
+#qunit-tests, #qunit-tests ol, #qunit-header, #qunit-banner, #qunit-userAgent, #qunit-testresult {
+	margin: 0;
+	padding: 0;
+}
+
+
+/** Header */
+
+#qunit-header {
+	padding: 0.5em 0 0.5em 1em;
+
+	color: #8699a4;
+	background-color: #0d3349;
+
+	font-size: 1.5em;
+	line-height: 1em;
+	font-weight: normal;
+
+	border-radius: 15px 15px 0 0;
+	-moz-border-radius: 15px 15px 0 0;
+	-webkit-border-top-right-radius: 15px;
+	-webkit-border-top-left-radius: 15px;
+}
+
+#qunit-header a {
+	text-decoration: none;
+	color: #c2ccd1;
+}
+
+#qunit-header a:hover,
+#qunit-header a:focus {
+	color: #fff;
+}
+
+#qunit-banner {
+	height: 5px;
+}
+
+#qunit-testrunner-toolbar {
+	padding: 0.5em 0 0.5em 2em;
+	color: #5E740B;
+	background-color: #eee;
+}
+
+#qunit-userAgent {
+	padding: 0.5em 0 0.5em 2.5em;
+	background-color: #2b81af;
+	color: #fff;
+	text-shadow: rgba(0, 0, 0, 0.5) 2px 2px 1px;
+}
+
+
+/** Tests: Pass/Fail */
+
+#qunit-tests {
+	list-style-position: inside;
+}
+
+#qunit-tests li {
+	padding: 0.4em 0.5em 0.4em 2.5em;
+	border-bottom: 1px solid #fff;
+	list-style-position: inside;
+}
+
+#qunit-tests.hidepass li.pass, #qunit-tests.hidepass li.running  {
+	display: none;
+}
+
+#qunit-tests li strong {
+	cursor: pointer;
+}
+
+#qunit-tests li a {
+	padding: 0.5em;
+	color: #c2ccd1;
+	text-decoration: none;
+}
+#qunit-tests li a:hover,
+#qunit-tests li a:focus {
+	color: #000;
+}
+
+#qunit-tests ol {
+	margin-top: 0.5em;
+	padding: 0.5em;
+
+	background-color: #fff;
+
+	border-radius: 15px;
+	-moz-border-radius: 15px;
+	-webkit-border-radius: 15px;
+
+	box-shadow: inset 0px 2px 13px #999;
+	-moz-box-shadow: inset 0px 2px 13px #999;
+	-webkit-box-shadow: inset 0px 2px 13px #999;
+}
+
+#qunit-tests table {
+	border-collapse: collapse;
+	margin-top: .2em;
+}
+
+#qunit-tests th {
+	text-align: right;
+	vertical-align: top;
+	padding: 0 .5em 0 0;
+}
+
+#qunit-tests td {
+	vertical-align: top;
+}
+
+#qunit-tests pre {
+	margin: 0;
+	white-space: pre-wrap;
+	word-wrap: break-word;
+}
+
+#qunit-tests del {
+	background-color: #e0f2be;
+	color: #374e0c;
+	text-decoration: none;
+}
+
+#qunit-tests ins {
+	background-color: #ffcaca;
+	color: #500;
+	text-decoration: none;
+}
+
+/*** Test Counts */
+
+#qunit-tests b.counts                       { color: black; }
+#qunit-tests b.passed                       { color: #5E740B; }
+#qunit-tests b.failed                       { color: #710909; }
+
+#qunit-tests li li {
+	margin: 0.5em;
+	padding: 0.4em 0.5em 0.4em 0.5em;
+	background-color: #fff;
+	border-bottom: none;
+	list-style-position: inside;
+}
+
+/*** Passing Styles */
+
+#qunit-tests li li.pass {
+	color: #5E740B;
+	background-color: #fff;
+	border-left: 26px solid #C6E746;
+}
+
+#qunit-tests .pass                          { color: #528CE0; background-color: #D2E0E6; }
+#qunit-tests .pass .test-name               { color: #366097; }
+
+#qunit-tests .pass .test-actual,
+#qunit-tests .pass .test-expected           { color: #999999; }
+
+#qunit-banner.qunit-pass                    { background-color: #C6E746; }
+
+/*** Failing Styles */
+
+#qunit-tests li li.fail {
+	color: #710909;
+	background-color: #fff;
+	border-left: 26px solid #EE5757;
+	white-space: pre;
+}
+
+#qunit-tests > li:last-child {
+	border-radius: 0 0 15px 15px;
+	-moz-border-radius: 0 0 15px 15px;
+	-webkit-border-bottom-right-radius: 15px;
+	-webkit-border-bottom-left-radius: 15px;
+}
+
+#qunit-tests .fail                          { color: #000000; background-color: #EE5757; }
+#qunit-tests .fail .test-name,
+#qunit-tests .fail .module-name             { color: #000000; }
+
+#qunit-tests .fail .test-actual             { color: #EE5757; }
+#qunit-tests .fail .test-expected           { color: green;   }
+
+#qunit-banner.qunit-fail                    { background-color: #EE5757; }
+
+
+/** Result */
+
+#qunit-testresult {
+	padding: 0.5em 0.5em 0.5em 2.5em;
+
+	color: #2b81af;
+	background-color: #D2E0E6;
+
+	border-bottom: 1px solid white;
+}
+
+/** Fixture */
+
+#qunit-fixture {
+	position: absolute;
+	top: -10000px;
+	left: -10000px;
+}
diff --git a/test/qunit.js b/test/qunit.js
new file mode 100644
--- /dev/null
+++ b/test/qunit.js
@@ -0,0 +1,1597 @@
+/**
+ * QUnit v1.2.0 - A JavaScript Unit Testing Framework
+ *
+ * http://docs.jquery.com/QUnit
+ *
+ * Copyright (c) 2011 John Resig, Jörn Zaefferer
+ * Dual licensed under the MIT (MIT-LICENSE.txt)
+ * or GPL (GPL-LICENSE.txt) licenses.
+ */
+
+(function(window) {
+
+var defined = {
+	setTimeout: typeof window.setTimeout !== "undefined",
+	sessionStorage: (function() {
+		try {
+			return !!sessionStorage.getItem;
+		} catch(e) {
+			return false;
+		}
+	})()
+};
+
+var	testId = 0,
+	toString = Object.prototype.toString,
+	hasOwn = Object.prototype.hasOwnProperty;
+
+var Test = function(name, testName, expected, testEnvironmentArg, async, callback) {
+	this.name = name;
+	this.testName = testName;
+	this.expected = expected;
+	this.testEnvironmentArg = testEnvironmentArg;
+	this.async = async;
+	this.callback = callback;
+	this.assertions = [];
+};
+Test.prototype = {
+	init: function() {
+		var tests = id("qunit-tests");
+		if (tests) {
+			var b = document.createElement("strong");
+				b.innerHTML = "Running " + this.name;
+			var li = document.createElement("li");
+				li.appendChild( b );
+				li.className = "running";
+				li.id = this.id = "test-output" + testId++;
+			tests.appendChild( li );
+		}
+	},
+	setup: function() {
+		if (this.module != config.previousModule) {
+			if ( config.previousModule ) {
+				runLoggingCallbacks('moduleDone', QUnit, {
+					name: config.previousModule,
+					failed: config.moduleStats.bad,
+					passed: config.moduleStats.all - config.moduleStats.bad,
+					total: config.moduleStats.all
+				} );
+			}
+			config.previousModule = this.module;
+			config.moduleStats = { all: 0, bad: 0 };
+			runLoggingCallbacks( 'moduleStart', QUnit, {
+				name: this.module
+			} );
+		}
+
+		config.current = this;
+		this.testEnvironment = extend({
+			setup: function() {},
+			teardown: function() {}
+		}, this.moduleTestEnvironment);
+		if (this.testEnvironmentArg) {
+			extend(this.testEnvironment, this.testEnvironmentArg);
+		}
+
+		runLoggingCallbacks( 'testStart', QUnit, {
+			name: this.testName,
+			module: this.module
+		});
+
+		// allow utility functions to access the current test environment
+		// TODO why??
+		QUnit.current_testEnvironment = this.testEnvironment;
+
+		try {
+			if ( !config.pollution ) {
+				saveGlobal();
+			}
+
+			this.testEnvironment.setup.call(this.testEnvironment);
+		} catch(e) {
+			QUnit.ok( false, "Setup failed on " + this.testName + ": " + e.message );
+		}
+	},
+	run: function() {
+		config.current = this;
+		if ( this.async ) {
+			QUnit.stop();
+		}
+
+		if ( config.notrycatch ) {
+			this.callback.call(this.testEnvironment);
+			return;
+		}
+		try {
+			this.callback.call(this.testEnvironment);
+		} catch(e) {
+			fail("Test " + this.testName + " died, exception and test follows", e, this.callback);
+			QUnit.ok( false, "Died on test #" + (this.assertions.length + 1) + ": " + e.message + " - " + QUnit.jsDump.parse(e) );
+			// else next test will carry the responsibility
+			saveGlobal();
+
+			// Restart the tests if they're blocking
+			if ( config.blocking ) {
+				QUnit.start();
+			}
+		}
+	},
+	teardown: function() {
+		config.current = this;
+		try {
+			this.testEnvironment.teardown.call(this.testEnvironment);
+			checkPollution();
+		} catch(e) {
+			QUnit.ok( false, "Teardown failed on " + this.testName + ": " + e.message );
+		}
+	},
+	finish: function() {
+		config.current = this;
+		if ( this.expected != null && this.expected != this.assertions.length ) {
+			QUnit.ok( false, "Expected " + this.expected + " assertions, but " + this.assertions.length + " were run" );
+		}
+
+		var good = 0, bad = 0,
+			tests = id("qunit-tests");
+
+		config.stats.all += this.assertions.length;
+		config.moduleStats.all += this.assertions.length;
+
+		if ( tests ) {
+			var ol = document.createElement("ol");
+
+			for ( var i = 0; i < this.assertions.length; i++ ) {
+				var assertion = this.assertions[i];
+
+				var li = document.createElement("li");
+				li.className = assertion.result ? "pass" : "fail";
+				li.innerHTML = assertion.message || (assertion.result ? "okay" : "failed");
+				ol.appendChild( li );
+
+				if ( assertion.result ) {
+					good++;
+				} else {
+					bad++;
+					config.stats.bad++;
+					config.moduleStats.bad++;
+				}
+			}
+
+			// store result when possible
+			if ( QUnit.config.reorder && defined.sessionStorage ) {
+				if (bad) {
+					sessionStorage.setItem("qunit-" + this.module + "-" + this.testName, bad);
+				} else {
+					sessionStorage.removeItem("qunit-" + this.module + "-" + this.testName);
+				}
+			}
+
+			if (bad == 0) {
+				ol.style.display = "none";
+			}
+
+			var b = document.createElement("strong");
+			b.innerHTML = this.name + " <b class='counts'>(<b class='failed'>" + bad + "</b>, <b class='passed'>" + good + "</b>, " + this.assertions.length + ")</b>";
+
+			var a = document.createElement("a");
+			a.innerHTML = "Rerun";
+			a.href = QUnit.url({ filter: getText([b]).replace(/\([^)]+\)$/, "").replace(/(^\s*|\s*$)/g, "") });
+
+			addEvent(b, "click", function() {
+				var next = b.nextSibling.nextSibling,
+					display = next.style.display;
+				next.style.display = display === "none" ? "block" : "none";
+			});
+
+			addEvent(b, "dblclick", function(e) {
+				var target = e && e.target ? e.target : window.event.srcElement;
+				if ( target.nodeName.toLowerCase() == "span" || target.nodeName.toLowerCase() == "b" ) {
+					target = target.parentNode;
+				}
+				if ( window.location && target.nodeName.toLowerCase() === "strong" ) {
+					window.location = QUnit.url({ filter: getText([target]).replace(/\([^)]+\)$/, "").replace(/(^\s*|\s*$)/g, "") });
+				}
+			});
+
+			var li = id(this.id);
+			li.className = bad ? "fail" : "pass";
+			li.removeChild( li.firstChild );
+			li.appendChild( b );
+			li.appendChild( a );
+			li.appendChild( ol );
+
+		} else {
+			for ( var i = 0; i < this.assertions.length; i++ ) {
+				if ( !this.assertions[i].result ) {
+					bad++;
+					config.stats.bad++;
+					config.moduleStats.bad++;
+				}
+			}
+		}
+
+		try {
+			QUnit.reset();
+		} catch(e) {
+			fail("reset() failed, following Test " + this.testName + ", exception and reset fn follows", e, QUnit.reset);
+		}
+
+		runLoggingCallbacks( 'testDone', QUnit, {
+			name: this.testName,
+			module: this.module,
+			failed: bad,
+			passed: this.assertions.length - bad,
+			total: this.assertions.length
+		} );
+	},
+
+	queue: function() {
+		var test = this;
+		synchronize(function() {
+			test.init();
+		});
+		function run() {
+			// each of these can by async
+			synchronize(function() {
+				test.setup();
+			});
+			synchronize(function() {
+				test.run();
+			});
+			synchronize(function() {
+				test.teardown();
+			});
+			synchronize(function() {
+				test.finish();
+			});
+		}
+		// defer when previous test run passed, if storage is available
+		var bad = QUnit.config.reorder && defined.sessionStorage && +sessionStorage.getItem("qunit-" + this.module + "-" + this.testName);
+		if (bad) {
+			run();
+		} else {
+			synchronize(run, true);
+		};
+	}
+
+};
+
+var QUnit = {
+
+	// call on start of module test to prepend name to all tests
+	module: function(name, testEnvironment) {
+		config.currentModule = name;
+		config.currentModuleTestEnviroment = testEnvironment;
+	},
+
+	asyncTest: function(testName, expected, callback) {
+		if ( arguments.length === 2 ) {
+			callback = expected;
+			expected = null;
+		}
+
+		QUnit.test(testName, expected, callback, true);
+	},
+
+	test: function(testName, expected, callback, async) {
+		var name = '<span class="test-name">' + testName + '</span>', testEnvironmentArg;
+
+		if ( arguments.length === 2 ) {
+			callback = expected;
+			expected = null;
+		}
+		// is 2nd argument a testEnvironment?
+		if ( expected && typeof expected === 'object') {
+			testEnvironmentArg = expected;
+			expected = null;
+		}
+
+		if ( config.currentModule ) {
+			name = '<span class="module-name">' + config.currentModule + "</span>: " + name;
+		}
+
+		if ( !validTest(config.currentModule + ": " + testName) ) {
+			return;
+		}
+
+		var test = new Test(name, testName, expected, testEnvironmentArg, async, callback);
+		test.module = config.currentModule;
+		test.moduleTestEnvironment = config.currentModuleTestEnviroment;
+		test.queue();
+	},
+
+	/**
+	 * Specify the number of expected assertions to gurantee that failed test (no assertions are run at all) don't slip through.
+	 */
+	expect: function(asserts) {
+		config.current.expected = asserts;
+	},
+
+	/**
+	 * Asserts true.
+	 * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
+	 */
+	ok: function(a, msg) {
+		a = !!a;
+		var details = {
+			result: a,
+			message: msg
+		};
+		msg = escapeInnerText(msg);
+		runLoggingCallbacks( 'log', QUnit, details );
+		config.current.assertions.push({
+			result: a,
+			message: msg
+		});
+	},
+
+	/**
+	 * Checks that the first two arguments are equal, with an optional message.
+	 * Prints out both actual and expected values.
+	 *
+	 * Prefered to ok( actual == expected, message )
+	 *
+	 * @example equal( format("Received {0} bytes.", 2), "Received 2 bytes." );
+	 *
+	 * @param Object actual
+	 * @param Object expected
+	 * @param String message (optional)
+	 */
+	equal: function(actual, expected, message) {
+		QUnit.push(expected == actual, actual, expected, message);
+	},
+
+	notEqual: function(actual, expected, message) {
+		QUnit.push(expected != actual, actual, expected, message);
+	},
+
+	deepEqual: function(actual, expected, message) {
+		QUnit.push(QUnit.equiv(actual, expected), actual, expected, message);
+	},
+
+	notDeepEqual: function(actual, expected, message) {
+		QUnit.push(!QUnit.equiv(actual, expected), actual, expected, message);
+	},
+
+	strictEqual: function(actual, expected, message) {
+		QUnit.push(expected === actual, actual, expected, message);
+	},
+
+	notStrictEqual: function(actual, expected, message) {
+		QUnit.push(expected !== actual, actual, expected, message);
+	},
+
+	raises: function(block, expected, message) {
+		var actual, ok = false;
+
+		if (typeof expected === 'string') {
+			message = expected;
+			expected = null;
+		}
+
+		try {
+			block();
+		} catch (e) {
+			actual = e;
+		}
+
+		if (actual) {
+			// we don't want to validate thrown error
+			if (!expected) {
+				ok = true;
+			// expected is a regexp
+			} else if (QUnit.objectType(expected) === "regexp") {
+				ok = expected.test(actual);
+			// expected is a constructor
+			} else if (actual instanceof expected) {
+				ok = true;
+			// expected is a validation function which returns true is validation passed
+			} else if (expected.call({}, actual) === true) {
+				ok = true;
+			}
+		}
+
+		QUnit.ok(ok, message);
+	},
+
+	start: function(count) {
+		config.semaphore -= count || 1;
+		if (config.semaphore > 0) {
+			// don't start until equal number of stop-calls
+			return;
+		}
+		if (config.semaphore < 0) {
+			// ignore if start is called more often then stop
+			config.semaphore = 0;
+		}
+		// A slight delay, to avoid any current callbacks
+		if ( defined.setTimeout ) {
+			window.setTimeout(function() {
+				if (config.semaphore > 0) {
+					return;
+				}
+				if ( config.timeout ) {
+					clearTimeout(config.timeout);
+				}
+
+				config.blocking = false;
+				process(true);
+			}, 13);
+		} else {
+			config.blocking = false;
+			process(true);
+		}
+	},
+
+	stop: function(count) {
+		config.semaphore += count || 1;
+		config.blocking = true;
+
+		if ( config.testTimeout && defined.setTimeout ) {
+			clearTimeout(config.timeout);
+			config.timeout = window.setTimeout(function() {
+				QUnit.ok( false, "Test timed out" );
+				config.semaphore = 1;
+				QUnit.start();
+			}, config.testTimeout);
+		}
+	}
+};
+
+//We want access to the constructor's prototype
+(function() {
+	function F(){};
+	F.prototype = QUnit;
+	QUnit = new F();
+	//Make F QUnit's constructor so that we can add to the prototype later
+	QUnit.constructor = F;
+})();
+
+// Backwards compatibility, deprecated
+QUnit.equals = QUnit.equal;
+QUnit.same = QUnit.deepEqual;
+
+// Maintain internal state
+var config = {
+	// The queue of tests to run
+	queue: [],
+
+	// block until document ready
+	blocking: true,
+
+	// when enabled, show only failing tests
+	// gets persisted through sessionStorage and can be changed in UI via checkbox
+	hidepassed: false,
+
+	// by default, run previously failed tests first
+	// very useful in combination with "Hide passed tests" checked
+	reorder: true,
+
+	// by default, modify document.title when suite is done
+	altertitle: true,
+
+	urlConfig: ['noglobals', 'notrycatch'],
+
+	//logging callback queues
+	begin: [],
+	done: [],
+	log: [],
+	testStart: [],
+	testDone: [],
+	moduleStart: [],
+	moduleDone: []
+};
+
+// Load paramaters
+(function() {
+	var location = window.location || { search: "", protocol: "file:" },
+		params = location.search.slice( 1 ).split( "&" ),
+		length = params.length,
+		urlParams = {},
+		current;
+
+	if ( params[ 0 ] ) {
+		for ( var i = 0; i < length; i++ ) {
+			current = params[ i ].split( "=" );
+			current[ 0 ] = decodeURIComponent( current[ 0 ] );
+			// allow just a key to turn on a flag, e.g., test.html?noglobals
+			current[ 1 ] = current[ 1 ] ? decodeURIComponent( current[ 1 ] ) : true;
+			urlParams[ current[ 0 ] ] = current[ 1 ];
+		}
+	}
+
+	QUnit.urlParams = urlParams;
+	config.filter = urlParams.filter;
+
+	// Figure out if we're running the tests from a server or not
+	QUnit.isLocal = !!(location.protocol === 'file:');
+})();
+
+// Expose the API as global variables, unless an 'exports'
+// object exists, in that case we assume we're in CommonJS
+if ( typeof exports === "undefined" || typeof require === "undefined" ) {
+	extend(window, QUnit);
+	window.QUnit = QUnit;
+} else {
+	extend(exports, QUnit);
+	exports.QUnit = QUnit;
+}
+
+// define these after exposing globals to keep them in these QUnit namespace only
+extend(QUnit, {
+	config: config,
+
+	// Initialize the configuration options
+	init: function() {
+		extend(config, {
+			stats: { all: 0, bad: 0 },
+			moduleStats: { all: 0, bad: 0 },
+			started: +new Date,
+			updateRate: 1000,
+			blocking: false,
+			autostart: true,
+			autorun: false,
+			filter: "",
+			queue: [],
+			semaphore: 0
+		});
+
+		var tests = id( "qunit-tests" ),
+			banner = id( "qunit-banner" ),
+			result = id( "qunit-testresult" );
+
+		if ( tests ) {
+			tests.innerHTML = "";
+		}
+
+		if ( banner ) {
+			banner.className = "";
+		}
+
+		if ( result ) {
+			result.parentNode.removeChild( result );
+		}
+
+		if ( tests ) {
+			result = document.createElement( "p" );
+			result.id = "qunit-testresult";
+			result.className = "result";
+			tests.parentNode.insertBefore( result, tests );
+			result.innerHTML = 'Running...<br/>&nbsp;';
+		}
+	},
+
+	/**
+	 * Resets the test setup. Useful for tests that modify the DOM.
+	 *
+	 * If jQuery is available, uses jQuery's html(), otherwise just innerHTML.
+	 */
+	reset: function() {
+		if ( window.jQuery ) {
+			jQuery( "#qunit-fixture" ).html( config.fixture );
+		} else {
+			var main = id( 'qunit-fixture' );
+			if ( main ) {
+				main.innerHTML = config.fixture;
+			}
+		}
+	},
+
+	/**
+	 * Trigger an event on an element.
+	 *
+	 * @example triggerEvent( document.body, "click" );
+	 *
+	 * @param DOMElement elem
+	 * @param String type
+	 */
+	triggerEvent: function( elem, type, event ) {
+		if ( document.createEvent ) {
+			event = document.createEvent("MouseEvents");
+			event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
+				0, 0, 0, 0, 0, false, false, false, false, 0, null);
+			elem.dispatchEvent( event );
+
+		} else if ( elem.fireEvent ) {
+			elem.fireEvent("on"+type);
+		}
+	},
+
+	// Safe object type checking
+	is: function( type, obj ) {
+		return QUnit.objectType( obj ) == type;
+	},
+
+	objectType: function( obj ) {
+		if (typeof obj === "undefined") {
+				return "undefined";
+
+		// consider: typeof null === object
+		}
+		if (obj === null) {
+				return "null";
+		}
+
+		var type = toString.call( obj ).match(/^\[object\s(.*)\]$/)[1] || '';
+
+		switch (type) {
+				case 'Number':
+						if (isNaN(obj)) {
+								return "nan";
+						} else {
+								return "number";
+						}
+				case 'String':
+				case 'Boolean':
+				case 'Array':
+				case 'Date':
+				case 'RegExp':
+				case 'Function':
+						return type.toLowerCase();
+		}
+		if (typeof obj === "object") {
+				return "object";
+		}
+		return undefined;
+	},
+
+	push: function(result, actual, expected, message) {
+		var details = {
+			result: result,
+			message: message,
+			actual: actual,
+			expected: expected
+		};
+
+		message = escapeInnerText(message) || (result ? "okay" : "failed");
+		message = '<span class="test-message">' + message + "</span>";
+		expected = escapeInnerText(QUnit.jsDump.parse(expected));
+		actual = escapeInnerText(QUnit.jsDump.parse(actual));
+		var output = message + '<table><tr class="test-expected"><th>Expected: </th><td><pre>' + expected + '</pre></td></tr>';
+		if (actual != expected) {
+			output += '<tr class="test-actual"><th>Result: </th><td><pre>' + actual + '</pre></td></tr>';
+			output += '<tr class="test-diff"><th>Diff: </th><td><pre>' + QUnit.diff(expected, actual) +'</pre></td></tr>';
+		}
+		if (!result) {
+			var source = sourceFromStacktrace();
+			if (source) {
+				details.source = source;
+				output += '<tr class="test-source"><th>Source: </th><td><pre>' + escapeInnerText(source) + '</pre></td></tr>';
+			}
+		}
+		output += "</table>";
+
+		runLoggingCallbacks( 'log', QUnit, details );
+
+		config.current.assertions.push({
+			result: !!result,
+			message: output
+		});
+	},
+
+	url: function( params ) {
+		params = extend( extend( {}, QUnit.urlParams ), params );
+		var querystring = "?",
+			key;
+		for ( key in params ) {
+			if ( !hasOwn.call( params, key ) ) {
+				continue;
+			}
+			querystring += encodeURIComponent( key ) + "=" +
+				encodeURIComponent( params[ key ] ) + "&";
+		}
+		return window.location.pathname + querystring.slice( 0, -1 );
+	},
+
+	extend: extend,
+	id: id,
+	addEvent: addEvent
+});
+
+//QUnit.constructor is set to the empty F() above so that we can add to it's prototype later
+//Doing this allows us to tell if the following methods have been overwritten on the actual
+//QUnit object, which is a deprecated way of using the callbacks.
+extend(QUnit.constructor.prototype, {
+	// Logging callbacks; all receive a single argument with the listed properties
+	// run test/logs.html for any related changes
+	begin: registerLoggingCallback('begin'),
+	// done: { failed, passed, total, runtime }
+	done: registerLoggingCallback('done'),
+	// log: { result, actual, expected, message }
+	log: registerLoggingCallback('log'),
+	// testStart: { name }
+	testStart: registerLoggingCallback('testStart'),
+	// testDone: { name, failed, passed, total }
+	testDone: registerLoggingCallback('testDone'),
+	// moduleStart: { name }
+	moduleStart: registerLoggingCallback('moduleStart'),
+	// moduleDone: { name, failed, passed, total }
+	moduleDone: registerLoggingCallback('moduleDone')
+});
+
+if ( typeof document === "undefined" || document.readyState === "complete" ) {
+	config.autorun = true;
+}
+
+QUnit.load = function() {
+	runLoggingCallbacks( 'begin', QUnit, {} );
+
+	// Initialize the config, saving the execution queue
+	var oldconfig = extend({}, config);
+	QUnit.init();
+	extend(config, oldconfig);
+
+	config.blocking = false;
+
+	var urlConfigHtml = '', len = config.urlConfig.length;
+	for ( var i = 0, val; i < len, val = config.urlConfig[i]; i++ ) {
+		config[val] = QUnit.urlParams[val];
+		urlConfigHtml += '<label><input name="' + val + '" type="checkbox"' + ( config[val] ? ' checked="checked"' : '' ) + '>' + val + '</label>';
+	}
+
+	var userAgent = id("qunit-userAgent");
+	if ( userAgent ) {
+		userAgent.innerHTML = navigator.userAgent;
+	}
+	var banner = id("qunit-header");
+	if ( banner ) {
+		banner.innerHTML = '<a href="' + QUnit.url({ filter: undefined }) + '"> ' + banner.innerHTML + '</a> ' + urlConfigHtml;
+		addEvent( banner, "change", function( event ) {
+			var params = {};
+			params[ event.target.name ] = event.target.checked ? true : undefined;
+			window.location = QUnit.url( params );
+		});
+	}
+
+	var toolbar = id("qunit-testrunner-toolbar");
+	if ( toolbar ) {
+		var filter = document.createElement("input");
+		filter.type = "checkbox";
+		filter.id = "qunit-filter-pass";
+		addEvent( filter, "click", function() {
+			var ol = document.getElementById("qunit-tests");
+			if ( filter.checked ) {
+				ol.className = ol.className + " hidepass";
+			} else {
+				var tmp = " " + ol.className.replace( /[\n\t\r]/g, " " ) + " ";
+				ol.className = tmp.replace(/ hidepass /, " ");
+			}
+			if ( defined.sessionStorage ) {
+				if (filter.checked) {
+					sessionStorage.setItem("qunit-filter-passed-tests", "true");
+				} else {
+					sessionStorage.removeItem("qunit-filter-passed-tests");
+				}
+			}
+		});
+		if ( config.hidepassed || defined.sessionStorage && sessionStorage.getItem("qunit-filter-passed-tests") ) {
+			filter.checked = true;
+			var ol = document.getElementById("qunit-tests");
+			ol.className = ol.className + " hidepass";
+		}
+		toolbar.appendChild( filter );
+
+		var label = document.createElement("label");
+		label.setAttribute("for", "qunit-filter-pass");
+		label.innerHTML = "Hide passed tests";
+		toolbar.appendChild( label );
+	}
+
+	var main = id('qunit-fixture');
+	if ( main ) {
+		config.fixture = main.innerHTML;
+	}
+
+	if (config.autostart) {
+		QUnit.start();
+	}
+};
+
+addEvent(window, "load", QUnit.load);
+
+// addEvent(window, "error") gives us a useless event object
+window.onerror = function( message, file, line ) {
+	if ( QUnit.config.current ) {
+		ok( false, message + ", " + file + ":" + line );
+	} else {
+		test( "global failure", function() {
+			ok( false, message + ", " + file + ":" + line );
+		});
+	}
+};
+
+function done() {
+	config.autorun = true;
+
+	// Log the last module results
+	if ( config.currentModule ) {
+		runLoggingCallbacks( 'moduleDone', QUnit, {
+			name: config.currentModule,
+			failed: config.moduleStats.bad,
+			passed: config.moduleStats.all - config.moduleStats.bad,
+			total: config.moduleStats.all
+		} );
+	}
+
+	var banner = id("qunit-banner"),
+		tests = id("qunit-tests"),
+		runtime = +new Date - config.started,
+		passed = config.stats.all - config.stats.bad,
+		html = [
+			'Tests completed in ',
+			runtime,
+			' milliseconds.<br/>',
+			'<span class="passed">',
+			passed,
+			'</span> tests of <span class="total">',
+			config.stats.all,
+			'</span> passed, <span class="failed">',
+			config.stats.bad,
+			'</span> failed.'
+		].join('');
+
+	if ( banner ) {
+		banner.className = (config.stats.bad ? "qunit-fail" : "qunit-pass");
+	}
+
+	if ( tests ) {
+		id( "qunit-testresult" ).innerHTML = html;
+	}
+
+	if ( config.altertitle && typeof document !== "undefined" && document.title ) {
+		// show ✖ for good, ✔ for bad suite result in title
+		// use escape sequences in case file gets loaded with non-utf-8-charset
+		document.title = [
+			(config.stats.bad ? "\u2716" : "\u2714"),
+			document.title.replace(/^[\u2714\u2716] /i, "")
+		].join(" ");
+	}
+
+	runLoggingCallbacks( 'done', QUnit, {
+		failed: config.stats.bad,
+		passed: passed,
+		total: config.stats.all,
+		runtime: runtime
+	} );
+}
+
+function validTest( name ) {
+	var filter = config.filter,
+		run = false;
+
+	if ( !filter ) {
+		return true;
+	}
+
+	var not = filter.charAt( 0 ) === "!";
+	if ( not ) {
+		filter = filter.slice( 1 );
+	}
+
+	if ( name.indexOf( filter ) !== -1 ) {
+		return !not;
+	}
+
+	if ( not ) {
+		run = true;
+	}
+
+	return run;
+}
+
+// so far supports only Firefox, Chrome and Opera (buggy)
+// could be extended in the future to use something like https://github.com/csnover/TraceKit
+function sourceFromStacktrace() {
+	try {
+		throw new Error();
+	} catch ( e ) {
+		if (e.stacktrace) {
+			// Opera
+			return e.stacktrace.split("\n")[6];
+		} else if (e.stack) {
+			// Firefox, Chrome
+			return e.stack.split("\n")[4];
+		} else if (e.sourceURL) {
+			// Safari, PhantomJS
+			// TODO sourceURL points at the 'throw new Error' line above, useless
+			//return e.sourceURL + ":" + e.line;
+		}
+	}
+}
+
+function escapeInnerText(s) {
+	if (!s) {
+		return "";
+	}
+	s = s + "";
+	return s.replace(/[\&<>]/g, function(s) {
+		switch(s) {
+			case "&": return "&amp;";
+			case "<": return "&lt;";
+			case ">": return "&gt;";
+			default: return s;
+		}
+	});
+}
+
+function synchronize( callback, last ) {
+	config.queue.push( callback );
+
+	if ( config.autorun && !config.blocking ) {
+		process(last);
+	}
+}
+
+function process( last ) {
+	var start = new Date().getTime();
+	config.depth = config.depth ? config.depth + 1 : 1;
+
+	while ( config.queue.length && !config.blocking ) {
+		if ( !defined.setTimeout || config.updateRate <= 0 || ( ( new Date().getTime() - start ) < config.updateRate ) ) {
+			config.queue.shift()();
+		} else {
+			window.setTimeout( function(){
+				process( last );
+			}, 13 );
+			break;
+		}
+	}
+	config.depth--;
+	if ( last && !config.blocking && !config.queue.length && config.depth === 0 ) {
+		done();
+	}
+}
+
+function saveGlobal() {
+	config.pollution = [];
+
+	if ( config.noglobals ) {
+		for ( var key in window ) {
+			if ( !hasOwn.call( window, key ) ) {
+				continue;
+			}
+			config.pollution.push( key );
+		}
+	}
+}
+
+function checkPollution( name ) {
+	var old = config.pollution;
+	saveGlobal();
+
+	var newGlobals = diff( config.pollution, old );
+	if ( newGlobals.length > 0 ) {
+		ok( false, "Introduced global variable(s): " + newGlobals.join(", ") );
+	}
+
+	var deletedGlobals = diff( old, config.pollution );
+	if ( deletedGlobals.length > 0 ) {
+		ok( false, "Deleted global variable(s): " + deletedGlobals.join(", ") );
+	}
+}
+
+// returns a new Array with the elements that are in a but not in b
+function diff( a, b ) {
+	var result = a.slice();
+	for ( var i = 0; i < result.length; i++ ) {
+		for ( var j = 0; j < b.length; j++ ) {
+			if ( result[i] === b[j] ) {
+				result.splice(i, 1);
+				i--;
+				break;
+			}
+		}
+	}
+	return result;
+}
+
+function fail(message, exception, callback) {
+	if ( typeof console !== "undefined" && console.error && console.warn ) {
+		console.error(message);
+		console.error(exception);
+		console.warn(callback.toString());
+
+	} else if ( window.opera && opera.postError ) {
+		opera.postError(message, exception, callback.toString);
+	}
+}
+
+function extend(a, b) {
+	for ( var prop in b ) {
+		if ( b[prop] === undefined ) {
+			delete a[prop];
+
+		// Avoid "Member not found" error in IE8 caused by setting window.constructor
+		} else if ( prop !== "constructor" || a !== window ) {
+			a[prop] = b[prop];
+		}
+	}
+
+	return a;
+}
+
+function addEvent(elem, type, fn) {
+	if ( elem.addEventListener ) {
+		elem.addEventListener( type, fn, false );
+	} else if ( elem.attachEvent ) {
+		elem.attachEvent( "on" + type, fn );
+	} else {
+		fn();
+	}
+}
+
+function id(name) {
+	return !!(typeof document !== "undefined" && document && document.getElementById) &&
+		document.getElementById( name );
+}
+
+function registerLoggingCallback(key){
+	return function(callback){
+		config[key].push( callback );
+	};
+}
+
+// Supports deprecated method of completely overwriting logging callbacks
+function runLoggingCallbacks(key, scope, args) {
+	//debugger;
+	var callbacks;
+	if ( QUnit.hasOwnProperty(key) ) {
+		QUnit[key].call(scope, args);
+	} else {
+		callbacks = config[key];
+		for( var i = 0; i < callbacks.length; i++ ) {
+			callbacks[i].call( scope, args );
+		}
+	}
+}
+
+// Test for equality any JavaScript type.
+// Author: Philippe Rathé <prathe@gmail.com>
+QUnit.equiv = function () {
+
+	var innerEquiv; // the real equiv function
+	var callers = []; // stack to decide between skip/abort functions
+	var parents = []; // stack to avoiding loops from circular referencing
+
+	// Call the o related callback with the given arguments.
+	function bindCallbacks(o, callbacks, args) {
+		var prop = QUnit.objectType(o);
+		if (prop) {
+			if (QUnit.objectType(callbacks[prop]) === "function") {
+				return callbacks[prop].apply(callbacks, args);
+			} else {
+				return callbacks[prop]; // or undefined
+			}
+		}
+	}
+
+	var getProto = Object.getPrototypeOf || function (obj) {
+		return obj.__proto__;
+	};
+
+	var callbacks = function () {
+
+		// for string, boolean, number and null
+		function useStrictEquality(b, a) {
+			if (b instanceof a.constructor || a instanceof b.constructor) {
+				// to catch short annotaion VS 'new' annotation of a
+				// declaration
+				// e.g. var i = 1;
+				// var j = new Number(1);
+				return a == b;
+			} else {
+				return a === b;
+			}
+		}
+
+		return {
+			"string" : useStrictEquality,
+			"boolean" : useStrictEquality,
+			"number" : useStrictEquality,
+			"null" : useStrictEquality,
+			"undefined" : useStrictEquality,
+
+			"nan" : function(b) {
+				return isNaN(b);
+			},
+
+			"date" : function(b, a) {
+				return QUnit.objectType(b) === "date"
+						&& a.valueOf() === b.valueOf();
+			},
+
+			"regexp" : function(b, a) {
+				return QUnit.objectType(b) === "regexp"
+						&& a.source === b.source && // the regex itself
+						a.global === b.global && // and its modifers
+													// (gmi) ...
+						a.ignoreCase === b.ignoreCase
+						&& a.multiline === b.multiline;
+			},
+
+			// - skip when the property is a method of an instance (OOP)
+			// - abort otherwise,
+			// initial === would have catch identical references anyway
+			"function" : function() {
+				var caller = callers[callers.length - 1];
+				return caller !== Object && typeof caller !== "undefined";
+			},
+
+			"array" : function(b, a) {
+				var i, j, loop;
+				var len;
+
+				// b could be an object literal here
+				if (!(QUnit.objectType(b) === "array")) {
+					return false;
+				}
+
+				len = a.length;
+				if (len !== b.length) { // safe and faster
+					return false;
+				}
+
+				// track reference to avoid circular references
+				parents.push(a);
+				for (i = 0; i < len; i++) {
+					loop = false;
+					for (j = 0; j < parents.length; j++) {
+						if (parents[j] === a[i]) {
+							loop = true;// dont rewalk array
+						}
+					}
+					if (!loop && !innerEquiv(a[i], b[i])) {
+						parents.pop();
+						return false;
+					}
+				}
+				parents.pop();
+				return true;
+			},
+
+			"object" : function(b, a) {
+				var i, j, loop;
+				var eq = true; // unless we can proove it
+				var aProperties = [], bProperties = []; // collection of
+														// strings
+
+				// comparing constructors is more strict than using
+				// instanceof
+				if (a.constructor !== b.constructor) {
+					// Allow objects with no prototype to be equivalent to
+					// objects with Object as their constructor.
+					if (!((getProto(a) === null && getProto(b) === Object.prototype) ||
+						  (getProto(b) === null && getProto(a) === Object.prototype)))
+					{
+						return false;
+					}
+				}
+
+				// stack constructor before traversing properties
+				callers.push(a.constructor);
+				// track reference to avoid circular references
+				parents.push(a);
+
+				for (i in a) { // be strict: don't ensures hasOwnProperty
+								// and go deep
+					loop = false;
+					for (j = 0; j < parents.length; j++) {
+						if (parents[j] === a[i])
+							loop = true; // don't go down the same path
+											// twice
+					}
+					aProperties.push(i); // collect a's properties
+
+					if (!loop && !innerEquiv(a[i], b[i])) {
+						eq = false;
+						break;
+					}
+				}
+
+				callers.pop(); // unstack, we are done
+				parents.pop();
+
+				for (i in b) {
+					bProperties.push(i); // collect b's properties
+				}
+
+				// Ensures identical properties name
+				return eq
+						&& innerEquiv(aProperties.sort(), bProperties
+								.sort());
+			}
+		};
+	}();
+
+	innerEquiv = function() { // can take multiple arguments
+		var args = Array.prototype.slice.apply(arguments);
+		if (args.length < 2) {
+			return true; // end transition
+		}
+
+		return (function(a, b) {
+			if (a === b) {
+				return true; // catch the most you can
+			} else if (a === null || b === null || typeof a === "undefined"
+					|| typeof b === "undefined"
+					|| QUnit.objectType(a) !== QUnit.objectType(b)) {
+				return false; // don't lose time with error prone cases
+			} else {
+				return bindCallbacks(a, callbacks, [ b, a ]);
+			}
+
+			// apply transition with (1..n) arguments
+		})(args[0], args[1])
+				&& arguments.callee.apply(this, args.splice(1,
+						args.length - 1));
+	};
+
+	return innerEquiv;
+
+}();
+
+/**
+ * jsDump Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com |
+ * http://flesler.blogspot.com Licensed under BSD
+ * (http://www.opensource.org/licenses/bsd-license.php) Date: 5/15/2008
+ *
+ * @projectDescription Advanced and extensible data dumping for Javascript.
+ * @version 1.0.0
+ * @author Ariel Flesler
+ * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
+ */
+QUnit.jsDump = (function() {
+	function quote( str ) {
+		return '"' + str.toString().replace(/"/g, '\\"') + '"';
+	};
+	function literal( o ) {
+		return o + '';
+	};
+	function join( pre, arr, post ) {
+		var s = jsDump.separator(),
+			base = jsDump.indent(),
+			inner = jsDump.indent(1);
+		if ( arr.join )
+			arr = arr.join( ',' + s + inner );
+		if ( !arr )
+			return pre + post;
+		return [ pre, inner + arr, base + post ].join(s);
+	};
+	function array( arr, stack ) {
+		var i = arr.length, ret = Array(i);
+		this.up();
+		while ( i-- )
+			ret[i] = this.parse( arr[i] , undefined , stack);
+		this.down();
+		return join( '[', ret, ']' );
+	};
+
+	var reName = /^function (\w+)/;
+
+	var jsDump = {
+		parse:function( obj, type, stack ) { //type is used mostly internally, you can fix a (custom)type in advance
+			stack = stack || [ ];
+			var parser = this.parsers[ type || this.typeOf(obj) ];
+			type = typeof parser;
+			var inStack = inArray(obj, stack);
+			if (inStack != -1) {
+				return 'recursion('+(inStack - stack.length)+')';
+			}
+			//else
+			if (type == 'function')  {
+					stack.push(obj);
+					var res = parser.call( this, obj, stack );
+					stack.pop();
+					return res;
+			}
+			// else
+			return (type == 'string') ? parser : this.parsers.error;
+		},
+		typeOf:function( obj ) {
+			var type;
+			if ( obj === null ) {
+				type = "null";
+			} else if (typeof obj === "undefined") {
+				type = "undefined";
+			} else if (QUnit.is("RegExp", obj)) {
+				type = "regexp";
+			} else if (QUnit.is("Date", obj)) {
+				type = "date";
+			} else if (QUnit.is("Function", obj)) {
+				type = "function";
+			} else if (typeof obj.setInterval !== undefined && typeof obj.document !== "undefined" && typeof obj.nodeType === "undefined") {
+				type = "window";
+			} else if (obj.nodeType === 9) {
+				type = "document";
+			} else if (obj.nodeType) {
+				type = "node";
+			} else if (
+				// native arrays
+				toString.call( obj ) === "[object Array]" ||
+				// NodeList objects
+				( typeof obj.length === "number" && typeof obj.item !== "undefined" && ( obj.length ? obj.item(0) === obj[0] : ( obj.item( 0 ) === null && typeof obj[0] === "undefined" ) ) )
+			) {
+				type = "array";
+			} else {
+				type = typeof obj;
+			}
+			return type;
+		},
+		separator:function() {
+			return this.multiline ?	this.HTML ? '<br />' : '\n' : this.HTML ? '&nbsp;' : ' ';
+		},
+		indent:function( extra ) {// extra can be a number, shortcut for increasing-calling-decreasing
+			if ( !this.multiline )
+				return '';
+			var chr = this.indentChar;
+			if ( this.HTML )
+				chr = chr.replace(/\t/g,'   ').replace(/ /g,'&nbsp;');
+			return Array( this._depth_ + (extra||0) ).join(chr);
+		},
+		up:function( a ) {
+			this._depth_ += a || 1;
+		},
+		down:function( a ) {
+			this._depth_ -= a || 1;
+		},
+		setParser:function( name, parser ) {
+			this.parsers[name] = parser;
+		},
+		// The next 3 are exposed so you can use them
+		quote:quote,
+		literal:literal,
+		join:join,
+		//
+		_depth_: 1,
+		// This is the list of parsers, to modify them, use jsDump.setParser
+		parsers:{
+			window: '[Window]',
+			document: '[Document]',
+			error:'[ERROR]', //when no parser is found, shouldn't happen
+			unknown: '[Unknown]',
+			'null':'null',
+			'undefined':'undefined',
+			'function':function( fn ) {
+				var ret = 'function',
+					name = 'name' in fn ? fn.name : (reName.exec(fn)||[])[1];//functions never have name in IE
+				if ( name )
+					ret += ' ' + name;
+				ret += '(';
+
+				ret = [ ret, QUnit.jsDump.parse( fn, 'functionArgs' ), '){'].join('');
+				return join( ret, QUnit.jsDump.parse(fn,'functionCode'), '}' );
+			},
+			array: array,
+			nodelist: array,
+			arguments: array,
+			object:function( map, stack ) {
+				var ret = [ ];
+				QUnit.jsDump.up();
+				for ( var key in map ) {
+				    var val = map[key];
+					ret.push( QUnit.jsDump.parse(key,'key') + ': ' + QUnit.jsDump.parse(val, undefined, stack));
+                }
+				QUnit.jsDump.down();
+				return join( '{', ret, '}' );
+			},
+			node:function( node ) {
+				var open = QUnit.jsDump.HTML ? '&lt;' : '<',
+					close = QUnit.jsDump.HTML ? '&gt;' : '>';
+
+				var tag = node.nodeName.toLowerCase(),
+					ret = open + tag;
+
+				for ( var a in QUnit.jsDump.DOMAttrs ) {
+					var val = node[QUnit.jsDump.DOMAttrs[a]];
+					if ( val )
+						ret += ' ' + a + '=' + QUnit.jsDump.parse( val, 'attribute' );
+				}
+				return ret + close + open + '/' + tag + close;
+			},
+			functionArgs:function( fn ) {//function calls it internally, it's the arguments part of the function
+				var l = fn.length;
+				if ( !l ) return '';
+
+				var args = Array(l);
+				while ( l-- )
+					args[l] = String.fromCharCode(97+l);//97 is 'a'
+				return ' ' + args.join(', ') + ' ';
+			},
+			key:quote, //object calls it internally, the key part of an item in a map
+			functionCode:'[code]', //function calls it internally, it's the content of the function
+			attribute:quote, //node calls it internally, it's an html attribute value
+			string:quote,
+			date:quote,
+			regexp:literal, //regex
+			number:literal,
+			'boolean':literal
+		},
+		DOMAttrs:{//attributes to dump from nodes, name=>realName
+			id:'id',
+			name:'name',
+			'class':'className'
+		},
+		HTML:false,//if true, entities are escaped ( <, >, \t, space and \n )
+		indentChar:'  ',//indentation unit
+		multiline:true //if true, items in a collection, are separated by a \n, else just a space.
+	};
+
+	return jsDump;
+})();
+
+// from Sizzle.js
+function getText( elems ) {
+	var ret = "", elem;
+
+	for ( var i = 0; elems[i]; i++ ) {
+		elem = elems[i];
+
+		// Get the text from text nodes and CDATA nodes
+		if ( elem.nodeType === 3 || elem.nodeType === 4 ) {
+			ret += elem.nodeValue;
+
+		// Traverse everything else, except comment nodes
+		} else if ( elem.nodeType !== 8 ) {
+			ret += getText( elem.childNodes );
+		}
+	}
+
+	return ret;
+};
+
+//from jquery.js
+function inArray( elem, array ) {
+	if ( array.indexOf ) {
+		return array.indexOf( elem );
+	}
+
+	for ( var i = 0, length = array.length; i < length; i++ ) {
+		if ( array[ i ] === elem ) {
+			return i;
+		}
+	}
+
+	return -1;
+}
+
+/*
+ * Javascript Diff Algorithm
+ *  By John Resig (http://ejohn.org/)
+ *  Modified by Chu Alan "sprite"
+ *
+ * Released under the MIT license.
+ *
+ * More Info:
+ *  http://ejohn.org/projects/javascript-diff-algorithm/
+ *
+ * Usage: QUnit.diff(expected, actual)
+ *
+ * QUnit.diff("the quick brown fox jumped over", "the quick fox jumps over") == "the  quick <del>brown </del> fox <del>jumped </del><ins>jumps </ins> over"
+ */
+QUnit.diff = (function() {
+	function diff(o, n) {
+		var ns = {};
+		var os = {};
+
+		for (var i = 0; i < n.length; i++) {
+			if (ns[n[i]] == null)
+				ns[n[i]] = {
+					rows: [],
+					o: null
+				};
+			ns[n[i]].rows.push(i);
+		}
+
+		for (var i = 0; i < o.length; i++) {
+			if (os[o[i]] == null)
+				os[o[i]] = {
+					rows: [],
+					n: null
+				};
+			os[o[i]].rows.push(i);
+		}
+
+		for (var i in ns) {
+			if ( !hasOwn.call( ns, i ) ) {
+				continue;
+			}
+			if (ns[i].rows.length == 1 && typeof(os[i]) != "undefined" && os[i].rows.length == 1) {
+				n[ns[i].rows[0]] = {
+					text: n[ns[i].rows[0]],
+					row: os[i].rows[0]
+				};
+				o[os[i].rows[0]] = {
+					text: o[os[i].rows[0]],
+					row: ns[i].rows[0]
+				};
+			}
+		}
+
+		for (var i = 0; i < n.length - 1; i++) {
+			if (n[i].text != null && n[i + 1].text == null && n[i].row + 1 < o.length && o[n[i].row + 1].text == null &&
+			n[i + 1] == o[n[i].row + 1]) {
+				n[i + 1] = {
+					text: n[i + 1],
+					row: n[i].row + 1
+				};
+				o[n[i].row + 1] = {
+					text: o[n[i].row + 1],
+					row: i + 1
+				};
+			}
+		}
+
+		for (var i = n.length - 1; i > 0; i--) {
+			if (n[i].text != null && n[i - 1].text == null && n[i].row > 0 && o[n[i].row - 1].text == null &&
+			n[i - 1] == o[n[i].row - 1]) {
+				n[i - 1] = {
+					text: n[i - 1],
+					row: n[i].row - 1
+				};
+				o[n[i].row - 1] = {
+					text: o[n[i].row - 1],
+					row: i - 1
+				};
+			}
+		}
+
+		return {
+			o: o,
+			n: n
+		};
+	}
+
+	return function(o, n) {
+		o = o.replace(/\s+$/, '');
+		n = n.replace(/\s+$/, '');
+		var out = diff(o == "" ? [] : o.split(/\s+/), n == "" ? [] : n.split(/\s+/));
+
+		var str = "";
+
+		var oSpace = o.match(/\s+/g);
+		if (oSpace == null) {
+			oSpace = [" "];
+		}
+		else {
+			oSpace.push(" ");
+		}
+		var nSpace = n.match(/\s+/g);
+		if (nSpace == null) {
+			nSpace = [" "];
+		}
+		else {
+			nSpace.push(" ");
+		}
+
+		if (out.n.length == 0) {
+			for (var i = 0; i < out.o.length; i++) {
+				str += '<del>' + out.o[i] + oSpace[i] + "</del>";
+			}
+		}
+		else {
+			if (out.n[0].text == null) {
+				for (n = 0; n < out.o.length && out.o[n].text == null; n++) {
+					str += '<del>' + out.o[n] + oSpace[n] + "</del>";
+				}
+			}
+
+			for (var i = 0; i < out.n.length; i++) {
+				if (out.n[i].text == null) {
+					str += '<ins>' + out.n[i] + nSpace[i] + "</ins>";
+				}
+				else {
+					var pre = "";
+
+					for (n = out.n[i].row + 1; n < out.o.length && out.o[n].text == null; n++) {
+						pre += '<del>' + out.o[n] + oSpace[n] + "</del>";
+					}
+					str += " " + out.n[i].text + nSpace[i] + pre;
+				}
+			}
+		}
+
+		return str;
+	};
+})();
+
+})(this);
diff --git a/test/test.html b/test/test.html
new file mode 100644
--- /dev/null
+++ b/test/test.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title> lightstring tests </title>
+  <meta charset="UTF-8"/>
+  <link type="text/css" href="qunit.css" rel="stylesheet"/>
+  <script type="text/javascript" src="qunit.js"></script>
+  <script type="text/javascript" src="../md5.js"></script>
+  <script type="text/javascript" src="../lightstring.js"></script>
+  <script type="text/javascript" src="test.js"></script>
+</head>
+<body>
+  <h1 id="qunit-header">QUnit example</h1>  
+  <h2 id="qunit-banner"></h2>  
+  <h2 id="qunit-userAgent"></h2>  
+  <ol id="qunit-tests">
+</body>
+</html>
+
diff --git a/test/test.js b/test/test.js
new file mode 100644
--- /dev/null
+++ b/test/test.js
@@ -0,0 +1,5 @@
+/**
+ * lightstring tests
+ */
+
+//FIXME TODO