/*
* QUnit - A JavaScript Unit Testing Framework
*
* http://docs.jquery.com/QUnit
*
* Copyright (c) 2009 John Resig, J?rn Zaefferer
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*/

(function(window) {

var QUnit = {

// call on start of module test to prepend name to all tests
module: function(name, testEnvironment) {
config.currentModule = name;

synchronize(function() {
if ( config.currentModule ) {
QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
}

config.currentModule = name;
config.moduleTestEnvironment = testEnvironment;
config.moduleStats = { all: 0, bad: 0 };

QUnit.moduleStart( name, testEnvironment );
});
},

asyncTest: function(testName, expected, callback) {
if ( arguments.length === 2 ) {
callback = expected;
expected = 0;
}

QUnit.test(testName, expected, callback, true);
},

test: function(testName, expected, callback, async) {
var name = '<span class="test-name">' + testName + '</span>', testEnvironment, 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;
}

synchronize(function() {

testEnvironment = extend({
setup: function() {},
teardown: function() {}
}, config.moduleTestEnvironment);
if (testEnvironmentArg) {
extend(testEnvironment,testEnvironmentArg);
}

QUnit.testStart( testName, testEnvironment );

// allow utility functions to access the current test environment
QUnit.current_testEnvironment = testEnvironment;

config.assertions = [];
config.expected = expected;

var tests = id("qunit-tests");
if (tests) {
var b = document.createElement("strong");
b.innerHTML = "Running " + name;
var li = document.createElement("li");
li.appendChild( b );
li.id = "current-test-output";
tests.appendChild( li )
}

try {
if ( !config.pollution ) {
saveGlobal();
}

testEnvironment.setup.call(testEnvironment);
} catch(e) {
QUnit.ok( false, "Setup failed on " + name + ": " + e.message );
}
});

synchronize(function() {
if ( async ) {
QUnit.stop();
}

try {
callback.call(testEnvironment);
} catch(e) {
fail("Test " + name + " died, exception and test follows", e, callback);
QUnit.ok( false, "Died on test #" + (config.assertions.length + 1) + ": " + e.message );
// else next test will carry the responsibility
saveGlobal();

// Restart the tests if they're blocking
if ( config.blocking ) {
start();
}
}
});

synchronize(function() {
try {
checkPollution();
testEnvironment.teardown.call(testEnvironment);
} catch(e) {
QUnit.ok( false, "Teardown failed on " + name + ": " + e.message );
}
});

synchronize(function() {
try {
QUnit.reset();
} catch(e) {
fail("reset() failed, following Test " + name + ", exception and reset fn follows", e, reset);
}

if ( config.expected && config.expected != config.assertions.length ) {
QUnit.ok( false, "Expected " + config.expected + " assertions, but " + config.assertions.length + " were run" );
}

var good = 0, bad = 0,
tests = id("qunit-tests");

config.stats.all += config.assertions.length;
config.moduleStats.all += config.assertions.length;

if ( tests ) {
var ol = document.createElement("ol");

for ( var i = 0; i < config.assertions.length; i++ ) {
var assertion = config.assertions[i];

var li = document.createElement("li");
li.className = assertion.result ? "pass" : "fail";
li.innerHTML = assertion.message || "(no message)";
ol.appendChild( li );

if ( assertion.result ) {
good++;
} else {
bad++;
config.stats.bad++;
config.moduleStats.bad++;
}
}
if (bad == 0) {
ol.style.display = "none";
}

var b = document.createElement("strong");
b.innerHTML = name + " <b style='color:black;'>(<b class='fail'>" + bad + "</b>, <b class='pass'>" + good + "</b>, " + config.assertions.length + ")</b>";

addEvent(b, "click", function() {
var next = b.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.search = "?" + encodeURIComponent(getText([target]).replace(/\(.+\)$/, "").replace(/(^\s*|\s*$)/g, ""));
}
});

var li = id("current-test-output");
li.id = "";
li.className = bad ? "fail" : "pass";
li.removeChild( li.firstChild );
li.appendChild( b );
li.appendChild( ol );

if ( bad ) {
var toolbar = id("qunit-testrunner-toolbar");
if ( toolbar ) {
toolbar.style.display = "block";
id("qunit-filter-pass").disabled = null;
id("qunit-filter-missing").disabled = null;
}
}

} else {
for ( var i = 0; i < config.assertions.length; i++ ) {
if ( !config.assertions[i].result ) {
bad++;
config.stats.bad++;
config.moduleStats.bad++;
}
}
}

QUnit.testDone( testName, bad, config.assertions.length );

if ( !window.setTimeout && !config.queue.length ) {
done();
}
});

if ( window.setTimeout && !config.doneTimer ) {
config.doneTimer = window.setTimeout(function(){
if ( !config.queue.length ) {
done();
} else {
synchronize( done );
}
}, 13);
}
},

/**
 * 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.expected = asserts;
},

/**
 * Asserts true.
 * 
 * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
 */
ok: function(a, msg) {
msg = escapeHtml(msg);
QUnit.log(a, msg);

config.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) {
push(expected == actual, actual, expected, message);
},

notEqual: function(actual, expected, message) {
push(expected != actual, actual, expected, message);
},

deepEqual: function(actual, expected, message) {
push(QUnit.equiv(actual, expected), actual, expected, message);
},

notDeepEqual: function(actual, expected, message) {
push(!QUnit.equiv(actual, expected), actual, expected, message);
},

strictEqual: function(actual, expected, message) {
push(expected === actual, actual, expected, message);
},

notStrictEqual: function(actual, expected, message) {
push(expected !== actual, actual, expected, message);
},

raises: function(fn, message) {
try {
fn();
ok( false, message );
}
catch (e) {
ok( true, message );
}
},

start: function() {
// A slight delay, to avoid any current callbacks
if ( window.setTimeout ) {
window.setTimeout(function() {
if ( config.timeout ) {
clearTimeout(config.timeout);
}

config.blocking = false;
process();
}, 13);
} else {
config.blocking = false;
process();
}
},

stop: function(timeout) {
config.blocking = true;

if ( timeout && window.setTimeout ) {
config.timeout = window.setTimeout(function() {
QUnit.ok( false, "Test timed out" );
QUnit.start();
}, timeout);
}
}

};

// 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
};

// Load paramaters
(function() {
var location = window.location || { search: "", protocol: "file:" },
GETParams = location.search.slice(1).split('&');

for ( var i = 0; i < GETParams.length; i++ ) {
GETParams[i] = decodeURIComponent( GETParams[i] );
if ( GETParams[i] === "noglobals" ) {
GETParams.splice( i, 1 );
i--;
config.noglobals = true;
} else if ( GETParams[i].search('=') > -1 ) {
GETParams.splice( i, 1 );
i--;
}
}

// restrict modules/tests by get parameters
config.filters = GETParams;

// 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,
assertions: [],
filters: [],
queue: []
});

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 );
}
},

/**
 * Resets the test setup. Useful for tests that modify the DOM.
 */
reset: function() {
if ( window.jQuery ) {
jQuery("#main, #qunit-fixture").html( 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 = Object.prototype.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;
},

// Logging callbacks
begin: function() {},
done: function(failures, total) {},
log: function(result, message) {},
testStart: function(name, testEnvironment) {},
testDone: function(name, failures, total) {},
moduleStart: function(name, testEnvironment) {},
moduleDone: function(name, failures, total) {}
});

if ( typeof document === "undefined" || document.readyState === "complete" ) {
config.autorun = true;
}

addEvent(window, "load", function() {
QUnit.begin();

// Initialize the config, saving the execution queue
var oldconfig = extend({}, config);
QUnit.init();
extend(config, oldconfig);

config.blocking = false;

var userAgent = id("qunit-userAgent");
if ( userAgent ) {
userAgent.innerHTML = navigator.userAgent;
}

var toolbar = id("qunit-testrunner-toolbar");
if ( toolbar ) {
toolbar.style.display = "none";

var filter = document.createElement("input");
filter.type = "checkbox";
filter.id = "qunit-filter-pass";
filter.disabled = true;
addEvent( filter, "click", function() {
var li = document.getElementsByTagName("li");
for ( var i = 0; i < li.length; i++ ) {
if ( li[i].className.indexOf("pass") > -1 ) {
li[i].style.display = filter.checked ? "none" : "";
}
}
});
toolbar.appendChild( filter );

var label = document.createElement("label");
label.setAttribute("for", "qunit-filter-pass");
label.innerHTML = "Hide passed tests";
toolbar.appendChild( label );

var missing = document.createElement("input");
missing.type = "checkbox";
missing.id = "qunit-filter-missing";
missing.disabled = true;
addEvent( missing, "click", function() {
var li = document.getElementsByTagName("li");
for ( var i = 0; i < li.length; i++ ) {
if ( li[i].className.indexOf("fail") > -1 && li[i].innerHTML.indexOf('missing test - untested code is broken code') > - 1 ) {
li[i].parentNode.parentNode.style.display = missing.checked ? "none" : "block";
}
}
});
toolbar.appendChild( missing );

label = document.createElement("label");
label.setAttribute("for", "qunit-filter-missing");
label.innerHTML = "Hide missing tests (untested code is broken code)";
toolbar.appendChild( label );
}

var main = id('main') || id('qunit-fixture');
if ( main ) {
config.fixture = main.innerHTML;
}

if (config.autostart) {
QUnit.start();
}
});

function done() {
if ( config.doneTimer && window.clearTimeout ) {
window.clearTimeout( config.doneTimer );
config.doneTimer = null;
}

if ( config.queue.length ) {
config.doneTimer = window.setTimeout(function(){
if ( !config.queue.length ) {
done();
} else {
synchronize( done );
}
}, 13);

return;
}

config.autorun = true;

// Log the last module results
if ( config.currentModule ) {
QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
}

var banner = id("qunit-banner"),
tests = id("qunit-tests"),
html = ['Tests completed in ',
+new Date - config.started, ' milliseconds.<br/>',
'<span class="passed">', config.stats.all - config.stats.bad, '</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 ) {
var result = id("qunit-testresult");

if ( !result ) {
result = document.createElement("p");
result.id = "qunit-testresult";
result.className = "result";
tests.parentNode.insertBefore( result, tests.nextSibling );
}

result.innerHTML = html;
}

QUnit.done( config.stats.bad, config.stats.all );
}

function validTest( name ) {
var i = config.filters.length,
run = false;

if ( !i ) {
return true;
}

while ( i-- ) {
var filter = config.filters[i],
not = filter.charAt(0) == '!';

if ( not ) {
filter = filter.slice(1);
}

if ( name.indexOf(filter) !== -1 ) {
return !not;
}

if ( not ) {
run = true;
}
}

return run;
}

function escapeHtml(s) {
s = s === null ? "" : s + "";
return s.replace(/[\&"<>\\]/g, function(s) {
switch(s) {
case "&": return "&amp;";
case "\\": return "\\\\";
case '"': return '\"';
case "<": return "&lt;";
case ">": return "&gt;";
default: return s;
}
});
}

function push(result, actual, expected, message) {
message = escapeHtml(message) || (result ? "okay" : "failed");
message = '<span class="test-message">' + message + "</span>";
expected = escapeHtml(QUnit.jsDump.parse(expected));
actual = escapeHtml(QUnit.jsDump.parse(actual));
var output = message + ', expected: <span class="test-expected">' + expected + '</span>';
if (actual != expected) {
output += ' result: <span class="test-actual">' + actual + '</span>, diff: ' + QUnit.diff(expected, actual);
}

// can't use ok, as that would double-escape messages
QUnit.log(result, output);
config.assertions.push({
result: !!result,
message: output
});
}

function synchronize( callback ) {
config.queue.push( callback );

if ( config.autorun && !config.blocking ) {
process();
}
}

function process() {
var start = (new Date()).getTime();

while ( config.queue.length && !config.blocking ) {
if ( config.updateRate <= 0 || (((new Date()).getTime() - start) < config.updateRate) ) {
config.queue.shift()();

} else {
setTimeout( process, 13 );
break;
}
}
}

function saveGlobal() {
config.pollution = [];

if ( config.noglobals ) {
for ( var key in window ) {
config.pollution.push( key );
}
}
}

function checkPollution( name ) {
var old = config.pollution;
saveGlobal();

var newGlobals = diff( old, config.pollution );
if ( newGlobals.length > 0 ) {
ok( false, "Introduced global variable(s): " + newGlobals.join(", ") );
config.expected++;
}

var deletedGlobals = diff( config.pollution, old );
if ( deletedGlobals.length > 0 ) {
ok( false, "Deleted global variable(s): " + deletedGlobals.join(", ") );
config.expected++;
}
}

// 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 ) {
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 );
}

// Test for equality any JavaScript type.
// Discussions and reference: http://philrathe.com/articles/equiv
// Test suites: http://philrathe.com/tests/equiv
// Author: Philippe Rath? <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 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) {
                    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 ) {
var i = arr.length, ret = Array(i);
this.up();
while ( i-- )
ret[i] = this.parse( arr[i] );
this.down();
return join( '[', ret, ']' );
};

var reName = /^function (\w+)/;

var jsDump = {
parse:function( obj, type ) { // type is used mostly internally, you can fix a
								// (custom)type in advance
var parser = this.parsers[ type || this.typeOf(obj) ];
type = typeof parser;

return type == 'function' ? parser.call( this, obj ) :
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 (obj.setInterval && obj.document && !obj.nodeType) {
type = "window";
} else if (obj.nodeType === 9) {
type = "document";
} else if (obj.nodeType) {
type = "node";
} else if (typeof obj === "object" && typeof obj.length === "number" && obj.length >= 0) {
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, this.parse( fn, 'functionArgs' ), '){'].join('');
return join( ret, this.parse(fn,'functionCode'), '}' );
},
array: array,
nodelist: array,
arguments: array,
object:function( map ) {
var ret = [ ];
this.up();
for ( var key in map )
ret.push( this.parse(key,'key') + ': ' + this.parse(map[key]) );
this.down();
return join( '{', ret, '}' );
},
node:function( node ) {
var open = this.HTML ? '&lt;' : '<',
close = this.HTML ? '&gt;' : '>';

var tag = node.nodeName.toLowerCase(),
ret = open + tag;

for ( var a in this.DOMAttrs ) {
var val = node[this.DOMAttrs[a]];
if ( val )
ret += ' ' + a + '=' + this.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:false // 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;
};

/*
 * 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 = new Object();
var os = new Object();

for (var i = 0; i < n.length; i++) {
if (ns[n[i]] == null)
ns[n[i]] = {
rows: new Array(),
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: new Array(),
n: null
};
os[o[i]].rows.push(i);
}

for (var i in ns) {
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);