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Code Editor : qunit.js

/**
 * QUnit v1.10.0 - A JavaScript Unit Testing Framework
 *
 * http://qunitjs.com
 *
 * Copyright 2012 jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

(function( window ) {

var QUnit,
	config,
	onErrorFnPrev,
	testId = 0,
	fileName = (sourceFromStacktrace( 0 ) || "" ).replace(/(:\d+)+\)?/, "").replace(/.+\//, ""),
	toString = Object.prototype.toString,
	hasOwn = Object.prototype.hasOwnProperty,
	// Keep a local reference to Date (GH-283)
	Date = window.Date,
	defined = {
	setTimeout: typeof window.setTimeout !== "undefined",
	sessionStorage: (function() {
		var x = "qunit-test-string";
		try {
			sessionStorage.setItem( x, x );
			sessionStorage.removeItem( x );
			return true;
		} catch( e ) {
			return false;
		}
	}())
};

function Test( settings ) {
	extend( this, settings );
	this.assertions = [];
	this.testNumber = ++Test.count;
}

Test.count = 0;

Test.prototype = {
	init: function() {
		var a, b, li,
        tests = id( "qunit-tests" );

if ( tests ) {
			b = document.createElement( "strong" );
			b.innerHTML = this.name;

// `a` initialized at top of scope
			a = document.createElement( "a" );
			a.innerHTML = "Rerun";
			a.href = QUnit.url({ testNumber: this.testNumber });

li = document.createElement( "li" );
			li.appendChild( b );
			li.appendChild( a );
			li.className = "running";
			li.id = this.id = "qunit-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
			});
		} else if ( config.autorun ) {
			runLoggingCallbacks( "moduleStart", QUnit, {
				name: this.module
			});
		}

config.current = this;

this.testEnvironment = extend({
			setup: function() {},
			teardown: function() {}
		}, this.moduleTestEnvironment );

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;

if ( !config.pollution ) {
			saveGlobal();
		}
		if ( config.notrycatch ) {
			this.testEnvironment.setup.call( this.testEnvironment );
			return;
		}
		try {
			this.testEnvironment.setup.call( this.testEnvironment );
		} catch( e ) {
			QUnit.pushFailure( "Setup failed on " + this.testName + ": " + e.message, extractStacktrace( e, 1 ) );
		}
	},
	run: function() {
		config.current = this;

var running = id( "qunit-testresult" );

if ( running ) {
			running.innerHTML = "Running: <br/>" + this.name;
		}

if ( this.async ) {
			QUnit.stop();
		}

if ( config.notrycatch ) {
			this.callback.call( this.testEnvironment, QUnit.assert );
			return;
		}

try {
			this.callback.call( this.testEnvironment, QUnit.assert );
		} catch( e ) {
			QUnit.pushFailure( "Died on test #" + (this.assertions.length + 1) + " " + this.stack + ": " + e.message, extractStacktrace( e, 0 ) );
			// 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;
		if ( config.notrycatch ) {
			this.testEnvironment.teardown.call( this.testEnvironment );
			return;
		} else {
			try {
				this.testEnvironment.teardown.call( this.testEnvironment );
			} catch( e ) {
				QUnit.pushFailure( "Teardown failed on " + this.testName + ": " + e.message, extractStacktrace( e, 1 ) );
			}
		}
		checkPollution();
	},
	finish: function() {
		config.current = this;
		if ( config.requireExpects && this.expected == null ) {
			QUnit.pushFailure( "Expected number of assertions to be defined, but expect() was not called.", this.stack );
		} else if ( this.expected != null && this.expected != this.assertions.length ) {
			QUnit.pushFailure( "Expected " + this.expected + " assertions, but " + this.assertions.length + " were run", this.stack );
		} else if ( this.expected == null && !this.assertions.length ) {
			QUnit.pushFailure( "Expected at least one assertion, but none were run - call expect(0) to accept zero assertions.", this.stack );
		}

var assertion, a, b, i, li, ol,
			test = this,
			good = 0,
			bad = 0,
			tests = id( "qunit-tests" );

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

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

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

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-test-" + this.module + "-" + this.testName, bad );
				} else {
					sessionStorage.removeItem( "qunit-test-" + this.module + "-" + this.testName );
				}
			}

if ( bad === 0 ) {
				ol.style.display = "none";
			}

// `b` initialized at top of scope
			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>";

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({ testNumber: test.testNumber });
				}
			});

// `li` initialized at top of scope
			li = id( this.id );
			li.className = bad ? "fail" : "pass";
			li.removeChild( li.firstChild );
			a = li.firstChild;
			li.appendChild( b );
			li.appendChild ( a );
			li.appendChild( ol );

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

runLoggingCallbacks( "testDone", QUnit, {
			name: this.testName,
			module: this.module,
			failed: bad,
			passed: this.assertions.length - bad,
			total: this.assertions.length
		});

QUnit.reset();

config.current = undefined;
	},

queue: function() {
		var bad,
			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();
			});
		}

// `bad` initialized at top of scope
		// defer when previous test run passed, if storage is available
		bad = QUnit.config.reorder && defined.sessionStorage &&
						+sessionStorage.getItem( "qunit-test-" + this.module + "-" + this.testName );

if ( bad ) {
			run();
		} else {
			synchronize( run, true );
		}
	}
};

// Root QUnit object.
// `QUnit` initialized at top of scope
QUnit = {

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

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 test,
			name = "<span class='test-name'>" + escapeInnerText( testName ) + "</span>";

if ( arguments.length === 2 ) {
			callback = expected;
			expected = null;
		}

if ( config.currentModule ) {
			name = "<span class='module-name'>" + config.currentModule + "</span>: " + name;
		}

test = new Test({
			name: name,
			testName: testName,
			expected: expected,
			async: async,
			callback: callback,
			module: config.currentModule,
			moduleTestEnvironment: config.currentModuleTestEnvironment,
			stack: sourceFromStacktrace( 2 )
		});

if ( !validTest( test ) ) {
			return;
		}

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 ) {
		if (arguments.length === 1) {
			config.current.expected = asserts;
		} else {
			return config.current.expected;
		}
	},

start: function( count ) {
		config.semaphore -= count || 1;
		// don't start until equal number of stop-calls
		if ( config.semaphore > 0 ) {
			return;
		}
		// ignore if start is called more often then stop
		if ( config.semaphore < 0 ) {
			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 );
		}
	}
};

// Asssert helpers
// All of these must call either QUnit.push() or manually do:
// - runLoggingCallbacks( "log", .. );
// - config.current.assertions.push({ .. });
QUnit.assert = {
	/**
	 * Asserts rough true-ish result.
	 * @name ok
	 * @function
	 * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
	 */
	ok: function( result, msg ) {
		if ( !config.current ) {
			throw new Error( "ok() assertion outside test context, was " + sourceFromStacktrace(2) );
		}
		result = !!result;

var source,
			details = {
				module: config.current.module,
				name: config.current.testName,
				result: result,
				message: msg
			};

msg = escapeInnerText( msg || (result ? "okay" : "failed" ) );
		msg = "<span class='test-message'>" + msg + "</span>";

if ( !result ) {
			source = sourceFromStacktrace( 2 );
			if ( source ) {
				details.source = source;
				msg += "<table><tr class='test-source'><th>Source: </th><td><pre>" + escapeInnerText( source ) + "</pre></td></tr></table>";
			}
		}
		runLoggingCallbacks( "log", QUnit, details );
		config.current.assertions.push({
			result: result,
			message: msg
		});
	},

/**
	 * Assert that the first two arguments are equal, with an optional message.
	 * Prints out both actual and expected values.
	 * @name equal
	 * @function
	 * @example equal( format( "Received {0} bytes.", 2), "Received 2 bytes.", "format() replaces {0} with next argument" );
	 */
	equal: function( actual, expected, message ) {
		QUnit.push( expected == actual, actual, expected, message );
	},

/**
	 * @name notEqual
	 * @function
	 */
	notEqual: function( actual, expected, message ) {
		QUnit.push( expected != actual, actual, expected, message );
	},

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

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

/**
	 * @name strictEqual
	 * @function
	 */
	strictEqual: function( actual, expected, message ) {
		QUnit.push( expected === actual, actual, expected, message );
	},

/**
	 * @name notStrictEqual
	 * @function
	 */
	notStrictEqual: function( actual, expected, message ) {
		QUnit.push( expected !== actual, actual, expected, message );
	},

throws: function( block, expected, message ) {
		var actual,
			ok = false;

// 'expected' is optional
		if ( typeof expected === "string" ) {
			message = expected;
			expected = null;
		}

config.current.ignoreGlobalErrors = true;
		try {
			block.call( config.current.testEnvironment );
		} catch (e) {
			actual = e;
		}
		config.current.ignoreGlobalErrors = false;

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.push( ok, actual, null, message );
		} else {
			QUnit.pushFailure( message, null, 'No exception was thrown.' );
		}
	}
};

/**
 * @deprecate since 1.8.0
 * Kept assertion helpers in root for backwards compatibility
 */
extend( QUnit, QUnit.assert );

/**
 * @deprecated since 1.9.0
 * Kept global "raises()" for backwards compatibility
 */
QUnit.raises = QUnit.assert.throws;

/**
 * @deprecated since 1.0.0, replaced with error pushes since 1.3.0
 * Kept to avoid TypeErrors for undefined methods.
 */
QUnit.equals = function() {
	QUnit.push( false, false, false, "QUnit.equals has been deprecated since 2009 (e88049a0), use QUnit.equal instead" );
};
QUnit.same = function() {
	QUnit.push( false, false, false, "QUnit.same has been deprecated since 2009 (e88049a0), use QUnit.deepEqual instead" );
};

// 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;
}());

/**
 * Config object: Maintain internal state
 * Later exposed as QUnit.config
 * `config` initialized at top of scope
 */
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,

// when enabled, all tests must call expect()
	requireExpects: false,

// add checkboxes that are persisted in the query-string
	// when enabled, the id is set to `true` as a `QUnit.config` property
	urlConfig: [
		{
			id: "noglobals",
			label: "Check for Globals",
			tooltip: "Enabling this will test if any test introduces new properties on the `window` object. Stored as query-strings."
		},
		{
			id: "notrycatch",
			label: "No try-catch",
			tooltip: "Enabling this will run tests outside of a try-catch block. Makes debugging exceptions in IE reasonable. Stored as query-strings."
		}
	],

// Set of all modules.
	modules: {},

// logging callback queues
	begin: [],
	done: [],
	log: [],
	testStart: [],
	testDone: [],
	moduleStart: [],
	moduleDone: []
};

// Initialize more QUnit.config and QUnit.urlParams
(function() {
	var i,
		location = window.location || { search: "", protocol: "file:" },
		params = location.search.slice( 1 ).split( "&" ),
		length = params.length,
		urlParams = {},
		current;

if ( params[ 0 ] ) {
		for ( 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;

// String search anywhere in moduleName+testName
	config.filter = urlParams.filter;

// Exact match of the module name
	config.module = urlParams.module;

config.testNumber = parseInt( urlParams.testNumber, 10 ) || null;

// Figure out if we're running the tests from a server or not
	QUnit.isLocal = location.protocol === "file:";
}());

// Export global variables, unless an 'exports' object exists,
// in that case we assume we're in CommonJS (dealt with on the bottom of the script)
if ( typeof exports === "undefined" ) {
	extend( window, QUnit );

// Expose QUnit object
	window.QUnit = QUnit;
}

// Extend QUnit object,
// these after set here because they should not be exposed as global functions
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, banner, result,
			qunit = id( "qunit" );

if ( qunit ) {
			qunit.innerHTML =
				"<h1 id='qunit-header'>" + escapeInnerText( document.title ) + "</h1>" +
				"<h2 id='qunit-banner'></h2>" +
				"<div id='qunit-testrunner-toolbar'></div>" +
				"<h2 id='qunit-userAgent'></h2>" +
				"<ol id='qunit-tests'></ol>";
		}

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.
	reset: function() {
		var fixture = id( "qunit-fixture" );
		if ( fixture ) {
			fixture.innerHTML = config.fixture;
		}
	},

// Trigger an event on an element.
	// @example triggerEvent( document.body, "click" );
	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";
				}
				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 ) {
		if ( !config.current ) {
			throw new Error( "assertion outside test context, was " + sourceFromStacktrace() );
		}

var output, source,
			details = {
				module: config.current.module,
				name: config.current.testName,
				result: result,
				message: message,
				actual: actual,
				expected: expected
			};

message = escapeInnerText( message ) || ( result ? "okay" : "failed" );
		message = "<span class='test-message'>" + message + "</span>";
		output = message;

if ( !result ) {
			expected = escapeInnerText( QUnit.jsDump.parse(expected) );
			actual = escapeInnerText( QUnit.jsDump.parse(actual) );
			output += "<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>";
			}

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
		});
	},

pushFailure: function( message, source, actual ) {
		if ( !config.current ) {
			throw new Error( "pushFailure() assertion outside test context, was " + sourceFromStacktrace(2) );
		}

var output,
			details = {
				module: config.current.module,
				name: config.current.testName,
				result: false,
				message: message
			};

message = escapeInnerText( message ) || "error";
		message = "<span class='test-message'>" + message + "</span>";
		output = message;

output += "<table>";

if ( actual ) {
			output += "<tr class='test-actual'><th>Result: </th><td><pre>" + escapeInnerText( actual ) + "</pre></td></tr>";
		}

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: false,
			message: output
		});
	},

url: function( params ) {
		params = extend( extend( {}, QUnit.urlParams ), params );
		var key,
			querystring = "?";

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
	// load, equiv, jsDump, diff: Attached later
});

/**
 * @deprecated: Created for backwards compatibility with test runner that set the hook function
 * into QUnit.{hook}, instead of invoking it and passing the hook function.
 * QUnit.constructor is set to the empty F() above so that we can add to it's prototype here.
 * Doing this allows us to tell if the following methods have been overwritten on the actual
 * QUnit object.
 */
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 banner, filter, i, label, len, main, ol, toolbar, userAgent, val, urlConfigCheckboxes, moduleFilter,
	    numModules = 0,
	    moduleFilterHtml = "",
		urlConfigHtml = "",
		oldconfig = extend( {}, config );

QUnit.init();
	extend(config, oldconfig);

config.blocking = false;

len = config.urlConfig.length;

for ( i = 0; i < len; i++ ) {
		val = config.urlConfig[i];
		if ( typeof val === "string" ) {
			val = {
				id: val,
				label: val,
				tooltip: "[no tooltip available]"
			};
		}
		config[ val.id ] = QUnit.urlParams[ val.id ];
		urlConfigHtml += "<input id='qunit-urlconfig-" + val.id + "' name='" + val.id + "' type='checkbox'" + ( config[ val.id ] ? " checked='checked'" : "" ) + " title='" + val.tooltip + "'><label for='qunit-urlconfig-" + val.id + "' title='" + val.tooltip + "'>" + val.label + "</label>";
	}

moduleFilterHtml += "<label for='qunit-modulefilter'>Module: </label><select id='qunit-modulefilter' name='modulefilter'><option value='' " + ( config.module === undefined  ? "selected" : "" ) + ">< All Modules ></option>";
	for ( i in config.modules ) {
		if ( config.modules.hasOwnProperty( i ) ) {
			numModules += 1;
			moduleFilterHtml += "<option value='" + encodeURIComponent(i) + "' " + ( config.module === i ? "selected" : "" ) + ">" + i + "</option>";
		}
	}
	moduleFilterHtml += "</select>";

// `userAgent` initialized at top of scope
	userAgent = id( "qunit-userAgent" );
	if ( userAgent ) {
		userAgent.innerHTML = navigator.userAgent;
	}

// `banner` initialized at top of scope
	banner = id( "qunit-header" );
	if ( banner ) {
		banner.innerHTML = "<a href='" + QUnit.url({ filter: undefined, module: undefined, testNumber: undefined }) + "'>" + banner.innerHTML + "</a> ";
	}

// `toolbar` initialized at top of scope
	toolbar = id( "qunit-testrunner-toolbar" );
	if ( toolbar ) {
		// `filter` initialized at top of scope
		filter = document.createElement( "input" );
		filter.type = "checkbox";
		filter.id = "qunit-filter-pass";

addEvent( filter, "click", function() {
			var tmp,
				ol = document.getElementById( "qunit-tests" );

if ( filter.checked ) {
				ol.className = ol.className + " hidepass";
			} else {
				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;
			// `ol` initialized at top of scope
			ol = document.getElementById( "qunit-tests" );
			ol.className = ol.className + " hidepass";
		}
		toolbar.appendChild( filter );

// `label` initialized at top of scope
		label = document.createElement( "label" );
		label.setAttribute( "for", "qunit-filter-pass" );
		label.setAttribute( "title", "Only show tests and assertons that fail. Stored in sessionStorage." );
		label.innerHTML = "Hide passed tests";
		toolbar.appendChild( label );

urlConfigCheckboxes = document.createElement( 'span' );
		urlConfigCheckboxes.innerHTML = urlConfigHtml;
		addEvent( urlConfigCheckboxes, "change", function( event ) {
			var params = {};
			params[ event.target.name ] = event.target.checked ? true : undefined;
			window.location = QUnit.url( params );
		});
		toolbar.appendChild( urlConfigCheckboxes );

if (numModules > 1) {
			moduleFilter = document.createElement( 'span' );
			moduleFilter.setAttribute( 'id', 'qunit-modulefilter-container' );
			moduleFilter.innerHTML = moduleFilterHtml;
			addEvent( moduleFilter, "change", function() {
				var selectBox = moduleFilter.getElementsByTagName("select")[0],
				    selectedModule = decodeURIComponent(selectBox.options[selectBox.selectedIndex].value);

window.location = QUnit.url( { module: ( selectedModule === "" ) ? undefined : selectedModule } );
			});
			toolbar.appendChild(moduleFilter);
		}
	}

// `main` initialized at top of scope
	main = id( "qunit-fixture" );
	if ( main ) {
		config.fixture = main.innerHTML;
	}

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

addEvent( window, "load", QUnit.load );

// `onErrorFnPrev` initialized at top of scope
// Preserve other handlers
onErrorFnPrev = window.onerror;

// Cover uncaught exceptions
// Returning true will surpress the default browser handler,
// returning false will let it run.
window.onerror = function ( error, filePath, linerNr ) {
	var ret = false;
	if ( onErrorFnPrev ) {
		ret = onErrorFnPrev( error, filePath, linerNr );
	}

// Treat return value as window.onerror itself does,
	// Only do our handling if not surpressed.
	if ( ret !== true ) {
		if ( QUnit.config.current ) {
			if ( QUnit.config.current.ignoreGlobalErrors ) {
				return true;
			}
			QUnit.pushFailure( error, filePath + ":" + linerNr );
		} else {
			QUnit.test( "global failure", extend( function() {
				QUnit.pushFailure( error, filePath + ":" + linerNr );
			}, { validTest: validTest } ) );
		}
		return false;
	}

return ret;
};

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 i, key,
		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( " " );
	}

// clear own sessionStorage items if all tests passed
	if ( config.reorder && defined.sessionStorage && config.stats.bad === 0 ) {
		// `key` & `i` initialized at top of scope
		for ( i = 0; i < sessionStorage.length; i++ ) {
			key = sessionStorage.key( i++ );
			if ( key.indexOf( "qunit-test-" ) === 0 ) {
				sessionStorage.removeItem( key );
			}
		}
	}

// scroll back to top to show results
	if ( window.scrollTo ) {
		window.scrollTo(0, 0);
	}

runLoggingCallbacks( "done", QUnit, {
		failed: config.stats.bad,
		passed: passed,
		total: config.stats.all,
		runtime: runtime
	});
}

/** @return Boolean: true if this test should be ran */
function validTest( test ) {
	var include,
		filter = config.filter && config.filter.toLowerCase(),
		module = config.module && config.module.toLowerCase(),
		fullName = (test.module + ": " + test.testName).toLowerCase();

// Internally-generated tests are always valid
	if ( test.callback && test.callback.validTest === validTest ) {
		delete test.callback.validTest;
		return true;
	}

if ( config.testNumber ) {
		return test.testNumber === config.testNumber;
	}

if ( module && ( !test.module || test.module.toLowerCase() !== module ) ) {
		return false;
	}

if ( !filter ) {
		return true;
	}

include = filter.charAt( 0 ) !== "!";
	if ( !include ) {
		filter = filter.slice( 1 );
	}

// If the filter matches, we need to honour include
	if ( fullName.indexOf( filter ) !== -1 ) {
		return include;
	}

// Otherwise, do the opposite
	return !include;
}

// so far supports only Firefox, Chrome and Opera (buggy), Safari (for real exceptions)
// Later Safari and IE10 are supposed to support error.stack as well
// See also https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
function extractStacktrace( e, offset ) {
	offset = offset === undefined ? 3 : offset;

var stack, include, i, regex;

if ( e.stacktrace ) {
		// Opera
		return e.stacktrace.split( "\n" )[ offset + 3 ];
	} else if ( e.stack ) {
		// Firefox, Chrome
		stack = e.stack.split( "\n" );
		if (/^error$/i.test( stack[0] ) ) {
			stack.shift();
		}
		if ( fileName ) {
			include = [];
			for ( i = offset; i < stack.length; i++ ) {
				if ( stack[ i ].indexOf( fileName ) != -1 ) {
					break;
				}
				include.push( stack[ i ] );
			}
			if ( include.length ) {
				return include.join( "\n" );
			}
		}
		return stack[ offset ];
	} else if ( e.sourceURL ) {
		// Safari, PhantomJS
		// hopefully one day Safari provides actual stacktraces
		// exclude useless self-reference for generated Error objects
		if ( /qunit.js$/.test( e.sourceURL ) ) {
			return;
		}
		// for actual exceptions, this is useful
		return e.sourceURL + ":" + e.line;
	}
}
function sourceFromStacktrace( offset ) {
	try {
		throw new Error();
	} catch ( e ) {
		return extractStacktrace( e, offset );
	}
}

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

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

function process( last ) {
	function next() {
		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( next, 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 ) {
			// in Opera sometimes DOM element ids show up here, ignore them
			if ( !hasOwn.call( window, key ) || /^qunit-test-output/.test( key ) ) {
				continue;
			}
			config.pollution.push( key );
		}
	}
}

function checkPollution( name ) {
	var newGlobals,
		deletedGlobals,
		old = config.pollution;

saveGlobal();

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

deletedGlobals = diff( old, config.pollution );
	if ( deletedGlobals.length > 0 ) {
		QUnit.pushFailure( "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 i, j,
		result = a.slice();

for ( i = 0; i < result.length; i++ ) {
		for ( j = 0; j < b.length; j++ ) {
			if ( result[i] === b[j] ) {
				result.splice( i, 1 );
				i--;
				break;
			}
		}
	}
	return result;
}

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 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 i, callbacks;
	if ( QUnit.hasOwnProperty( key ) ) {
		QUnit[ key ].call(scope, args );
	} else {
		callbacks = config[ key ];
		for ( 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() {

// 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
			}
		}
	}

// the real equiv function
	var innerEquiv,
		// stack to decide between skip/abort functions
		callers = [],
		// stack to avoiding loops from circular referencing
		parents = [],

getProto = Object.getPrototypeOf || function ( obj ) {
			return obj.__proto__;
		},
		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" &&
						// the regex itself
						a.source === b.source &&
						// and its modifers
						a.global === b.global &&
						// (gmi) ...
						a.ignoreCase === b.ignoreCase &&
						a.multiline === b.multiline &&
						a.sticky === b.sticky;
				},

// - 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, len, loop;

// 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,
						// Default to true
						eq = true,
						aProperties = [],
						bProperties = [];

// 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] ) {
								// don't go down the same path twice
								loop = true;
							}
						}
						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 = [].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 = new Array(i);
		this.up();
		while ( i-- ) {
			ret[i] = this.parse( arr[i] , undefined , stack);
		}
		this.down();
		return join( "[", ret, "]" );
	}

var reName = /^function (\w+)/,
		jsDump = {
			parse: function( obj, type, stack ) { //type is used mostly internally, you can fix a (custom)type in advance
				stack = stack || [ ];
				var inStack, res,
					parser = this.parsers[ type || this.typeOf(obj) ];

type = typeof parser;
				inStack = inArray( obj, stack );

if ( inStack != -1 ) {
					return "recursion(" + (inStack - stack.length) + ")";
				}
				//else
				if ( type == "function" )  {
					stack.push( obj );
					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 new 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 = [ ], keys, key, val, i;
					QUnit.jsDump.up();
					if ( Object.keys ) {
						keys = Object.keys( map );
					} else {
						keys = [];
						for ( key in map ) {
							keys.push( key );
						}
					}
					keys.sort();
					for ( i = 0; i < keys.length; i++ ) {
						key = keys[ i ];
						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 a, val,
						open = QUnit.jsDump.HTML ? "&lt;" : "<",
						close = QUnit.jsDump.HTML ? "&gt;" : ">",
						tag = node.nodeName.toLowerCase(),
						ret = open + tag;

for ( a in QUnit.jsDump.DOMAttrs ) {
						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 args,
						l = fn.length;

if ( !l ) {
						return "";
					}

args = new 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 i, elem,
		ret = "";

for ( 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 i,
			ns = {},
			os = {};

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

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

for ( 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 ( 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 ( 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 i, pre,
			str = "",
			out = diff( o === "" ? [] : o.split(/\s+/), n === "" ? [] : n.split(/\s+/) ),
			oSpace = o.match(/\s+/g),
			nSpace = n.match(/\s+/g);

if ( oSpace == null ) {
			oSpace = [ " " ];
		}
		else {
			oSpace.push( " " );
		}

if ( nSpace == null ) {
			nSpace = [ " " ];
		}
		else {
			nSpace.push( " " );
		}

if ( out.n.length === 0 ) {
			for ( 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 ( i = 0; i < out.n.length; i++ ) {
				if (out.n[i].text == null) {
					str += "<ins>" + out.n[i] + nSpace[i] + "</ins>";
				}
				else {
					// `pre` initialized at top of scope
					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;
	};
}());

// for CommonJS enviroments, export everything
if ( typeof exports !== "undefined" ) {
	extend(exports, QUnit);
}

// get at whatever the global object is, like window in browsers
}( (function() {return this;}.call()) ));

${this.title}

Code Editor : qunit.js