tablefilter/test/libs/qunit/qunit.js

/*!
 * QUnit 1.15.0
 * http://qunitjs.com/
 *
 * Copyright 2014 jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2014-08-08T16:00Z
 */

(function( window ) {

var QUnit,
	config,
	onErrorFnPrev,
	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,
	now = Date.now || function() {
		return new Date().getTime();
	},
	setTimeout = window.setTimeout,
	clearTimeout = window.clearTimeout,
	defined = {
		document: typeof window.document !== "undefined",
		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;
			}
		}())
	},
	/**
	 * Provides a normalized error string, correcting an issue
	 * with IE 7 (and prior) where Error.prototype.toString is
	 * not properly implemented
	 *
	 * Based on http://es5.github.com/#x15.11.4.4
	 *
	 * @param {String|Error} error
	 * @return {String} error message
	 */
	errorString = function( error ) {
		var name, message,
			errorString = error.toString();
		if ( errorString.substring( 0, 7 ) === "[object" ) {
			name = error.name ? error.name.toString() : "Error";
			message = error.message ? error.message.toString() : "";
			if ( name && message ) {
				return name + ": " + message;
			} else if ( name ) {
				return name;
			} else if ( message ) {
				return message;
			} else {
				return "Error";
			}
		} else {
			return errorString;
		}
	},
	/**
	 * Makes a clone of an object using only Array or Object as base,
	 * and copies over the own enumerable properties.
	 *
	 * @param {Object} obj
	 * @return {Object} New object with only the own properties (recursively).
	 */
	objectValues = function( obj ) {
		var key, val,
			vals = QUnit.is( "array", obj ) ? [] : {};
		for ( key in obj ) {
			if ( hasOwn.call( obj, key ) ) {
				val = obj[ key ];
				vals[ key ] = val === Object( val ) ? objectValues( val ) : val;
			}
		}
		return vals;
	};

// 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;

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

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

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

		test.queue();
	},

	start: function( count ) {
		var message;

		// QUnit hasn't been initialized yet.
		// Note: RequireJS (et al) may delay onLoad
		if ( config.semaphore === undefined ) {
			QUnit.begin(function() {
				// This is triggered at the top of QUnit.load, push start() to the event loop, to allow QUnit.load to finish first
				setTimeout(function() {
					QUnit.start( count );
				});
			});
			return;
		}

		config.semaphore -= count || 1;
		// don't start until equal number of stop-calls
		if ( config.semaphore > 0 ) {
			return;
		}

		// Set the starting time when the first test is run
		QUnit.config.started = QUnit.config.started || now();
		// ignore if start is called more often then stop
		if ( config.semaphore < 0 ) {
			config.semaphore = 0;

			message = "Called start() while already started (QUnit.config.semaphore was 0 already)";

			if ( config.current ) {
				QUnit.pushFailure( message, sourceFromStacktrace( 2 ) );
			} else {
				throw new Error( message );
			}

			return;
		}
		// A slight delay, to avoid any current callbacks
		if ( defined.setTimeout ) {
			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 = setTimeout(function() {
				QUnit.ok( false, "Test timed out" );
				config.semaphore = 1;
				QUnit.start();
			}, config.testTimeout );
		}
	}
};

// We use the prototype to distinguish between properties that should
// be exposed as globals (and in exports) and those that shouldn't
(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,

	// by default, scroll to top of the page when suite is done
	scrolltop: 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: {},

	callbacks: {}
};

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

	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;
			if ( urlParams[ current[ 0 ] ] ) {
				urlParams[ current[ 0 ] ] = [].concat( urlParams[ current[ 0 ] ], current[ 1 ] );
			} else {
				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 = [];
	if ( urlParams.testNumber ) {

		// Ensure that urlParams.testNumber is an array
		urlParams.testNumber = [].concat( urlParams.testNumber );
		for ( i = 0; i < urlParams.testNumber.length; i++ ) {
			current = urlParams.testNumber[ i ];
			config.testNumber.push( parseInt( current, 10 ) );
		}
	}

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

extend( QUnit, {

	config: config,

	// 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 match = toString.call( obj ).match( /^\[object\s(.*)\]$/ ),
			type = match && match[ 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;
	},

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

		for ( key in params ) {
			if ( hasOwn.call( params, key ) ) {
				querystring += encodeURIComponent( key ) + "=" +
					encodeURIComponent( params[ key ] ) + "&";
			}
		}
		return window.location.protocol + "//" + window.location.host +
			window.location.pathname + querystring.slice( 0, -1 );
	},

	extend: extend
});

/**
 * @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, runtime }
	testDone: registerLoggingCallback( "testDone" ),

	// moduleStart: { name }
	moduleStart: registerLoggingCallback( "moduleStart" ),

	// moduleDone: { name, failed, passed, total }
	moduleDone: registerLoggingCallback( "moduleDone" )
});

QUnit.load = function() {
	runLoggingCallbacks( "begin", {
		totalTests: Test.count
	});

	// Initialize the configuration options
	extend( config, {
		stats: { all: 0, bad: 0 },
		moduleStats: { all: 0, bad: 0 },
		started: 0,
		updateRate: 1000,
		autostart: true,
		filter: "",
		semaphore: 1
	}, true );

	config.blocking = false;

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

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

// Cover uncaught exceptions
// Returning true will suppress 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 suppressed.
	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.previousModule ) {
		runLoggingCallbacks( "moduleDone", {
			name: config.previousModule,
			failed: config.moduleStats.bad,
			passed: config.moduleStats.all - config.moduleStats.bad,
			total: config.moduleStats.all
		});
	}
	delete config.previousModule;

	var runtime = now() - config.started,
		passed = config.stats.all - config.stats.bad;

	runLoggingCallbacks( "done", {
		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.length > 0 ) {
		if ( inArray( test.testNumber, config.testNumber ) < 0 ) {
			return false;
		}
	}

	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;
}

// Doesn't support IE6 to IE9
// See also https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
function extractStacktrace( e, offset ) {
	offset = offset === undefined ? 4 : offset;

	var stack, include, i;

	if ( e.stacktrace ) {

		// Opera 12.x
		return e.stacktrace.split( "\n" )[ offset + 3 ];
	} else if ( e.stack ) {

		// Firefox, Chrome, Safari 6+, IE10+, PhantomJS and Node
		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 < 6
		// 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 = now();
	config.depth = config.depth ? config.depth + 1 : 1;

	while ( config.queue.length && !config.blocking ) {
		if ( !defined.setTimeout || config.updateRate <= 0 || ( ( now() - start ) < config.updateRate ) ) {
			config.queue.shift()();
		} else {
			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 ) {
			if ( hasOwn.call( window, key ) ) {
				// in Opera sometimes DOM element ids show up here, ignore them
				if ( /^qunit-test-output/.test( key ) ) {
					continue;
				}
				config.pollution.push( key );
			}
		}
	}
}

function checkPollution() {
	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, undefOnly ) {
	for ( var prop in b ) {
		if ( hasOwn.call( b, prop ) ) {

			// Avoid "Member not found" error in IE8 caused by messing with window.constructor
			if ( !( prop === "constructor" && a === window ) ) {
				if ( b[ prop ] === undefined ) {
					delete a[ prop ];
				} else if ( !( undefOnly && typeof a[ prop ] !== "undefined" ) ) {
					a[ prop ] = b[ prop ];
				}
			}
		}
	}

	return a;
}

function registerLoggingCallback( key ) {

	// Initialize key collection of logging callback
	if ( QUnit.objectType( config.callbacks[ key ] ) === "undefined" ) {
		config.callbacks[ key ] = [];
	}

	return function( callback ) {
		config.callbacks[ key ].push( callback );
	};
}

function runLoggingCallbacks( key, args ) {
	var i, l, callbacks;

	callbacks = config.callbacks[ key ];
	for ( i = 0, l = callbacks.length; i < l; i++ ) {
		callbacks[ i ]( args );
	}
}

// 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;
}

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

Test.count = 0;

Test.prototype = {
	setup: function() {
		if (

			// Emit moduleStart when we're switching from one module to another
			this.module !== config.previousModule ||

				// They could be equal (both undefined) but if the previousModule property doesn't
				// yet exist it means this is the first test in a suite that isn't wrapped in a
				// module, in which case we'll just emit a moduleStart event for 'undefined'.
				// Without this, reporters can get testStart before moduleStart  which is a problem.
				!hasOwn.call( config, "previousModule" )
		) {
			if ( hasOwn.call( config, "previousModule" ) ) {
				runLoggingCallbacks( "moduleDone", {
					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", {
				name: this.module
			});
		}

		config.current = this;

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

		this.started = now();
		runLoggingCallbacks( "testStart", {
			name: this.testName,
			module: this.module,
			testNumber: this.testNumber
		});

		if ( !config.pollution ) {
			saveGlobal();
		}
		if ( config.notrycatch ) {
			this.testEnvironment.setup.call( this.testEnvironment, this.assert );
			return;
		}
		try {
			this.testEnvironment.setup.call( this.testEnvironment, this.assert );
		} catch ( e ) {
			this.pushFailure( "Setup failed on " + this.testName + ": " + ( e.message || e ), extractStacktrace( e, 0 ) );
		}
	},
	run: function() {
		config.current = this;

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

		this.callbackStarted = now();

		if ( config.notrycatch ) {
			this.callback.call( this.testEnvironment, this.assert );
			this.callbackRuntime = now() - this.callbackStarted;
			return;
		}

		try {
			this.callback.call( this.testEnvironment, this.assert );
			this.callbackRuntime = now() - this.callbackStarted;
		} catch ( e ) {
			this.callbackRuntime = now() - this.callbackStarted;

			this.pushFailure( "Died on test #" + ( this.assertions.length + 1 ) + " " + this.stack + ": " + ( e.message || e ), 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 ) {
			if ( typeof this.callbackRuntime === "undefined" ) {
				this.callbackRuntime = now() - this.callbackStarted;
			}
			this.testEnvironment.teardown.call( this.testEnvironment, this.assert );
			return;
		} else {
			try {
				this.testEnvironment.teardown.call( this.testEnvironment, this.assert );
			} catch ( e ) {
				this.pushFailure( "Teardown failed on " + this.testName + ": " + ( e.message || e ), extractStacktrace( e, 0 ) );
			}
		}
		checkPollution();
	},
	finish: function() {
		config.current = this;
		if ( config.requireExpects && this.expected === null ) {
			this.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 ) {
			this.pushFailure( "Expected " + this.expected + " assertions, but " + this.assertions.length + " were run", this.stack );
		} else if ( this.expected === null && !this.assertions.length ) {
			this.pushFailure( "Expected at least one assertion, but none were run - call expect(0) to accept zero assertions.", this.stack );
		}

		var i,
			bad = 0;

		this.runtime = now() - this.started;
		config.stats.all += this.assertions.length;
		config.moduleStats.all += this.assertions.length;

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

		runLoggingCallbacks( "testDone", {
			name: this.testName,
			module: this.module,
			failed: bad,
			passed: this.assertions.length - bad,
			total: this.assertions.length,
			runtime: this.runtime,

			// HTML Reporter use
			assertions: this.assertions,
			testNumber: this.testNumber,

			// DEPRECATED: this property will be removed in 2.0.0, use runtime instead
			duration: this.runtime
		});

		config.current = undefined;
	},

	queue: function() {
		var bad,
			test = this;

		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 );
		}
	},

	push: function( result, actual, expected, message ) {
		var source,
			details = {
				module: this.module,
				name: this.testName,
				result: result,
				message: message,
				actual: actual,
				expected: expected,
				testNumber: this.testNumber
			};

		if ( !result ) {
			source = sourceFromStacktrace();

			if ( source ) {
				details.source = source;
			}
		}

		runLoggingCallbacks( "log", details );

		this.assertions.push({
			result: !!result,
			message: message
		});
	},

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

		var details = {
				module: this.module,
				name: this.testName,
				result: false,
				message: message || "error",
				actual: actual || null,
				testNumber: this.testNumber
			};

		if ( source ) {
			details.source = source;
		}

		runLoggingCallbacks( "log", details );

		this.assertions.push({
			result: false,
			message: message
		});
	}
};

QUnit.pushFailure = function() {
	if ( !QUnit.config.current ) {
		throw new Error( "pushFailure() assertion outside test context, in " + sourceFromStacktrace( 2 ) );
	}

	// Gets current test obj
	var currentTest = QUnit.config.current.assert.test;

	return currentTest.pushFailure.apply( currentTest, arguments );
};

function Assert( testContext ) {
	this.test = testContext;
}

// Assert helpers
QUnit.assert = Assert.prototype = {

	// Specify the number of expected assertions to guarantee that failed test (no assertions are run at all) don't slip through.
	expect: function( asserts ) {
		if ( arguments.length === 1 ) {
			this.test.expected = asserts;
		} else {
			return this.test.expected;
		}
	},

	// Exports test.push() to the user API
	push: function() {
		var assert = this;

		// Backwards compatibility fix.
		// Allows the direct use of global exported assertions and QUnit.assert.*
		// Although, it's use is not recommended as it can leak assertions
		// to other tests from async tests, because we only get a reference to the current test,
		// not exactly the test where assertion were intended to be called.
		if ( !QUnit.config.current ) {
			throw new Error( "assertion outside test context, in " + sourceFromStacktrace( 2 ) );
		}
		if ( !( assert instanceof Assert ) ) {
			assert = QUnit.config.current.assert;
		}
		return assert.test.push.apply( assert.test, arguments );
	},

	/**
	 * Asserts rough true-ish result.
	 * @name ok
	 * @function
	 * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
	 */
	ok: function( result, message ) {
		message = message || ( result ? "okay" : "failed, expected argument to be truthy, was: " +
			QUnit.dump.parse( result ) );
		if ( !!result ) {
			this.push( true, result, true, message );
		} else {
			this.test.pushFailure( message, null, result );
		}
	},

	/**
	 * 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 ) {
		/*jshint eqeqeq:false */
		this.push( expected == actual, actual, expected, message );
	},

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

	/**
	 * @name propEqual
	 * @function
	 */
	propEqual: function( actual, expected, message ) {
		actual = objectValues( actual );
		expected = objectValues( expected );
		this.push( QUnit.equiv( actual, expected ), actual, expected, message );
	},

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

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

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

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

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

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

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

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

		if ( actual ) {
			expectedType = QUnit.objectType( expected );

			// we don't want to validate thrown error
			if ( !expected ) {
				ok = true;
				expectedOutput = null;

			// expected is a regexp
			} else if ( expectedType === "regexp" ) {
				ok = expected.test( errorString( actual ) );

			// expected is a string
			} else if ( expectedType === "string" ) {
				ok = expected === errorString( actual );

			// expected is a constructor, maybe an Error constructor
			} else if ( expectedType === "function" && actual instanceof expected ) {
				ok = true;

			// expected is an Error object
			} else if ( expectedType === "object" ) {
				ok = actual instanceof expected.constructor &&
					actual.name === expected.name &&
					actual.message === expected.message;

			// expected is a validation function which returns true if validation passed
			} else if ( expectedType === "function" && expected.call( {}, actual ) === true ) {
				expectedOutput = null;
				ok = true;
			}

			this.push( ok, actual, expectedOutput, message );
		} else {
			this.test.pushFailure( message, null, "No exception was thrown." );
		}
	}
};

// 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 = [],
		parentsB = [],

		getProto = Object.getPrototypeOf || function( obj ) {
			/* jshint camelcase: false, proto: true */
			return obj.__proto__;
		},
		callbacks = (function() {

			// for string, boolean, number and null
			function useStrictEquality( b, a ) {

				/*jshint eqeqeq:false */
				if ( b instanceof a.constructor || a instanceof b.constructor ) {

					// to catch short annotation 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 modifiers
						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, aCircular, bCircular;

					// 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 );
					parentsB.push( b );
					for ( i = 0; i < len; i++ ) {
						loop = false;
						for ( j = 0; j < parents.length; j++ ) {
							aCircular = parents[ j ] === a[ i ];
							bCircular = parentsB[ j ] === b[ i ];
							if ( aCircular || bCircular ) {
								if ( a[ i ] === b[ i ] || aCircular && bCircular ) {
									loop = true;
								} else {
									parents.pop();
									parentsB.pop();
									return false;
								}
							}
						}
						if ( !loop && !innerEquiv( a[ i ], b[ i ] ) ) {
							parents.pop();
							parentsB.pop();
							return false;
						}
					}
					parents.pop();
					parentsB.pop();
					return true;
				},

				"object": function( b, a ) {

					/*jshint forin:false */
					var i, j, loop, aCircular, bCircular,
						// 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 );
					parentsB.push( b );

					// be strict: don't ensure hasOwnProperty and go deep
					for ( i in a ) {
						loop = false;
						for ( j = 0; j < parents.length; j++ ) {
							aCircular = parents[ j ] === a[ i ];
							bCircular = parentsB[ j ] === b[ i ];
							if ( aCircular || bCircular ) {
								if ( a[ i ] === b[ i ] || aCircular && bCircular ) {
									loop = true;
								} else {
									eq = false;
									break;
								}
							}
						}
						aProperties.push( i );
						if ( !loop && !innerEquiv( a[ i ], b[ i ] ) ) {
							eq = false;
							break;
						}
					}

					parents.pop();
					parentsB.pop();
					callers.pop(); // unstack, we are done

					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 ) ) {

				// don't lose time with error prone cases
				return false;
			} else {
				return bindCallbacks( a, callbacks, [ b, a ] );
			}

			// apply transition with (1..n) arguments
		}( args[ 0 ], args[ 1 ] ) ) && innerEquiv.apply( this, args.splice( 1, args.length - 1 ) ) );
	};

	return innerEquiv;
}());

// Based on jsDump by Ariel Flesler
// http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html
QUnit.dump = (function() {
	function quote( str ) {
		return "\"" + str.toString().replace( /"/g, "\\\"" ) + "\"";
	}
	function literal( o ) {
		return o + "";
	}
	function join( pre, arr, post ) {
		var s = dump.separator(),
			base = dump.indent(),
			inner = dump.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+)/,
		dump = {
			// type is used mostly internally, you can fix a (custom)type in advance
			parse: function( obj, type, stack ) {
				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 ) + ")";
				}
				if ( type === "function" ) {
					stack.push( obj );
					res = parser.call( this, obj, stack );
					stack.pop();
					return res;
				}
				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 if ( obj.constructor === Error.prototype.constructor ) {
					type = "error";
				} else {
					type = typeof obj;
				}
				return type;
			},
			separator: function() {
				return this.multiline ? this.HTML ? "<br />" : "\n" : this.HTML ? "&nbsp;" : " ";
			},
			// extra can be a number, shortcut for increasing-calling-decreasing
			indent: function( extra ) {
				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 dump.setParser
			parsers: {
				window: "[Window]",
				document: "[Document]",
				error: function( error ) {
					return "Error(\"" + error.message + "\")";
				},
				unknown: "[Unknown]",
				"null": "null",
				"undefined": "undefined",
				"function": function( fn ) {
					var ret = "function",
						// functions never have name in IE
						name = "name" in fn ? fn.name : ( reName.exec( fn ) || [] )[ 1 ];

					if ( name ) {
						ret += " " + name;
					}
					ret += "( ";

					ret = [ ret, dump.parse( fn, "functionArgs" ), "){" ].join( "" );
					return join( ret, dump.parse( fn, "functionCode" ), "}" );
				},
				array: array,
				nodelist: array,
				"arguments": array,
				object: function( map, stack ) {
					/*jshint forin:false */
					var ret = [], keys, key, val, i, nonEnumerableProperties;
					dump.up();
					keys = [];
					for ( key in map ) {
						keys.push( key );
					}

					// Some properties are not always enumerable on Error objects.
					nonEnumerableProperties = [ "message", "name" ];
					for ( i in nonEnumerableProperties ) {
						key = nonEnumerableProperties[ i ];
						if ( key in map && !( key in keys ) ) {
							keys.push( key );
						}
					}
					keys.sort();
					for ( i = 0; i < keys.length; i++ ) {
						key = keys[ i ];
						val = map[ key ];
						ret.push( dump.parse( key, "key" ) + ": " + dump.parse( val, undefined, stack ) );
					}
					dump.down();
					return join( "{", ret, "}" );
				},
				node: function( node ) {
					var len, i, val,
						open = dump.HTML ? "&lt;" : "<",
						close = dump.HTML ? "&gt;" : ">",
						tag = node.nodeName.toLowerCase(),
						ret = open + tag,
						attrs = node.attributes;

					if ( attrs ) {
						for ( i = 0, len = attrs.length; i < len; i++ ) {
							val = attrs[ i ].nodeValue;

							// IE6 includes all attributes in .attributes, even ones not explicitly set.
							// Those have values like undefined, null, 0, false, "" or "inherit".
							if ( val && val !== "inherit" ) {
								ret += " " + attrs[ i ].nodeName + "=" + dump.parse( val, "attribute" );
							}
						}
					}
					ret += close;

					// Show content of TextNode or CDATASection
					if ( node.nodeType === 3 || node.nodeType === 4 ) {
						ret += node.nodeValue;
					}

					return ret + open + "/" + tag + close;
				},

				// function calls it internally, it's the arguments part of the function
				functionArgs: function( fn ) {
					var args,
						l = fn.length;

					if ( !l ) {
						return "";
					}

					args = new Array( l );
					while ( l-- ) {

						// 97 is 'a'
						args[ l ] = String.fromCharCode( 97 + l );
					}
					return " " + args.join( ", " ) + " ";
				},
				// object calls it internally, the key part of an item in a map
				key: quote,
				// function calls it internally, it's the content of the function
				functionCode: "[code]",
				// node calls it internally, it's an html attribute value
				attribute: quote,
				string: quote,
				date: quote,
				regexp: literal,
				number: literal,
				"boolean": literal
			},
			// if true, entities are escaped ( <, >, \t, space and \n )
			HTML: false,
			// indentation unit
			indentChar: "  ",
			// if true, items in a collection, are separated by a \n, else just a space.
			multiline: true
		};

	return dump;
}());

// back compat
QUnit.jsDump = QUnit.dump;

// For browser, export only select globals
if ( typeof window !== "undefined" ) {

	// Deprecated
	// Extend assert methods to QUnit and Global scope through Backwards compatibility
	(function() {
		var i,
			assertions = Assert.prototype;

		function applyCurrent( current ) {
			return function() {
				var assert = new Assert( QUnit.config.current );
				current.apply( assert, arguments );
			};
		}

		for ( i in assertions ) {
			QUnit[ i ] = applyCurrent( assertions[ i ] );
		}
	})();

	(function() {
		var i, l,
			keys = [
				"test",
				"module",
				"expect",
				"asyncTest",
				"start",
				"stop",
				"ok",
				"equal",
				"notEqual",
				"propEqual",
				"notPropEqual",
				"deepEqual",
				"notDeepEqual",
				"strictEqual",
				"notStrictEqual",
				"throws"
			];

		for ( i = 0, l = keys.length; i < l; i++ ) {
			window[ keys[ i ] ] = QUnit[ keys[ i ] ];
		}
	})();

	window.QUnit = QUnit;
}

// For CommonJS environments, export everything
if ( typeof module !== "undefined" && module.exports ) {
	module.exports = QUnit;
}

// Get a reference to the global object, like window in browsers
}( (function() {
	return this;
})() ));

/*istanbul ignore next */
/*
 * 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() {
	var hasOwn = Object.prototype.hasOwnProperty;

	/*jshint eqeqeq:false, eqnull:true */
	function diff( o, n ) {
		var i,
			ns = {},
			os = {};

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

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

		for ( i in ns ) {
			if ( hasOwn.call( ns, i ) ) {
				if ( ns[ i ].rows.length === 1 && hasOwn.call( os, i ) && 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;
	};
}());

(function() {

// Deprecated QUnit.init - Ref #530
// Re-initialize the configuration options
QUnit.init = function() {
	var tests, banner, result, qunit,
		config = QUnit.config;

	config.stats = { all: 0, bad: 0 };
	config.moduleStats = { all: 0, bad: 0 };
	config.started = 0;
	config.updateRate = 1000;
	config.blocking = false;
	config.autostart = true;
	config.autorun = false;
	config.filter = "";
	config.queue = [];
	config.semaphore = 1;

	// Return on non-browser environments
	// This is necessary to not break on node tests
	if ( typeof window === "undefined" ) {
		return;
	}

	qunit = id( "qunit" );
	if ( qunit ) {
		qunit.innerHTML =
			"<h1 id='qunit-header'>" + escapeText( 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.
/*
DEPRECATED: Use multiple tests instead of resetting inside a test.
Use testStart or testDone for custom cleanup.
This method will throw an error in 2.0, and will be removed in 2.1
*/
QUnit.reset = function() {

	// Return on non-browser environments
	// This is necessary to not break on node tests
	if ( typeof window === "undefined" ) {
		return;
	}

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

// Don't load the HTML Reporter on non-Browser environments
if ( typeof window === "undefined" ) {
	return;
}

var config = QUnit.config,
	hasOwn = Object.prototype.hasOwnProperty,
	defined = {
		document: typeof window.document !== "undefined",
		sessionStorage: (function() {
			var x = "qunit-test-string";
			try {
				sessionStorage.setItem( x, x );
				sessionStorage.removeItem( x );
				return true;
			} catch ( e ) {
				return false;
			}
		}())
	};

/**
* Escape text for attribute or text content.
*/
function escapeText( s ) {
	if ( !s ) {
		return "";
	}
	s = s + "";

	// Both single quotes and double quotes (for attributes)
	return s.replace( /['"<>&]/g, function( s ) {
		switch ( s ) {
		case "'":
			return "&#039;";
		case "\"":
			return "&quot;";
		case "<":
			return "&lt;";
		case ">":
			return "&gt;";
		case "&":
			return "&amp;";
		}
	});
}

/**
 * @param {HTMLElement} elem
 * @param {string} type
 * @param {Function} fn
 */
function addEvent( elem, type, fn ) {
	if ( elem.addEventListener ) {

		// Standards-based browsers
		elem.addEventListener( type, fn, false );
	} else if ( elem.attachEvent ) {

		// support: IE <9
		elem.attachEvent( "on" + type, fn );
	}
}

/**
 * @param {Array|NodeList} elems
 * @param {string} type
 * @param {Function} fn
 */
function addEvents( elems, type, fn ) {
	var i = elems.length;
	while ( i-- ) {
		addEvent( elems[ i ], type, fn );
	}
}

function hasClass( elem, name ) {
	return ( " " + elem.className + " " ).indexOf( " " + name + " " ) >= 0;
}

function addClass( elem, name ) {
	if ( !hasClass( elem, name ) ) {
		elem.className += ( elem.className ? " " : "" ) + name;
	}
}

function toggleClass( elem, name ) {
	if ( hasClass( elem, name ) ) {
		removeClass( elem, name );
	} else {
		addClass( elem, name );
	}
}

function removeClass( elem, name ) {
	var set = " " + elem.className + " ";

	// Class name may appear multiple times
	while ( set.indexOf( " " + name + " " ) >= 0 ) {
		set = set.replace( " " + name + " ", " " );
	}

	// trim for prettiness
	elem.className = typeof set.trim === "function" ? set.trim() : set.replace( /^\s+|\s+$/g, "" );
}

function id( name ) {
	return defined.document && document.getElementById && document.getElementById( name );
}

function getUrlConfigHtml() {
	var i, j, val,
		escaped, escapedTooltip,
		selection = false,
		len = config.urlConfig.length,
		urlConfigHtml = "";

	for ( i = 0; i < len; i++ ) {
		val = config.urlConfig[ i ];
		if ( typeof val === "string" ) {
			val = {
				id: val,
				label: val
			};
		}

		escaped = escapeText( val.id );
		escapedTooltip = escapeText( val.tooltip );

		config[ val.id ] = QUnit.urlParams[ val.id ];
		if ( !val.value || typeof val.value === "string" ) {
			urlConfigHtml += "<input id='qunit-urlconfig-" + escaped +
				"' name='" + escaped + "' type='checkbox'" +
				( val.value ? " value='" + escapeText( val.value ) + "'" : "" ) +
				( config[ val.id ] ? " checked='checked'" : "" ) +
				" title='" + escapedTooltip + "'><label for='qunit-urlconfig-" + escaped +
				"' title='" + escapedTooltip + "'>" + val.label + "</label>";
		} else {
			urlConfigHtml += "<label for='qunit-urlconfig-" + escaped +
				"' title='" + escapedTooltip + "'>" + val.label +
				": </label><select id='qunit-urlconfig-" + escaped +
				"' name='" + escaped + "' title='" + escapedTooltip + "'><option></option>";

			if ( QUnit.is( "array", val.value ) ) {
				for ( j = 0; j < val.value.length; j++ ) {
					escaped = escapeText( val.value[ j ] );
					urlConfigHtml += "<option value='" + escaped + "'" +
						( config[ val.id ] === val.value[ j ] ?
							( selection = true ) && " selected='selected'" : "" ) +
						">" + escaped + "</option>";
				}
			} else {
				for ( j in val.value ) {
					if ( hasOwn.call( val.value, j ) ) {
						urlConfigHtml += "<option value='" + escapeText( j ) + "'" +
							( config[ val.id ] === j ?
								( selection = true ) && " selected='selected'" : "" ) +
							">" + escapeText( val.value[ j ] ) + "</option>";
					}
				}
			}
			if ( config[ val.id ] && !selection ) {
				escaped = escapeText( config[ val.id ] );
				urlConfigHtml += "<option value='" + escaped +
					"' selected='selected' disabled='disabled'>" + escaped + "</option>";
			}
			urlConfigHtml += "</select>";
		}
	}

	return urlConfigHtml;
}

function toolbarUrlConfigContainer() {
	var urlConfigContainer = document.createElement( "span" );

	urlConfigContainer.innerHTML = getUrlConfigHtml();

	// For oldIE support:
	// * Add handlers to the individual elements instead of the container
	// * Use "click" instead of "change" for checkboxes
	// * Fallback from event.target to event.srcElement
	addEvents( urlConfigContainer.getElementsByTagName( "input" ), "click", function( event ) {
		var params = {},
			target = event.target || event.srcElement;
		params[ target.name ] = target.checked ?
			target.defaultValue || true :
			undefined;
		window.location = QUnit.url( params );
	});
	addEvents( urlConfigContainer.getElementsByTagName( "select" ), "change", function( event ) {
		var params = {},
			target = event.target || event.srcElement;
		params[ target.name ] = target.options[ target.selectedIndex ].value || undefined;
		window.location = QUnit.url( params );
	});

	return urlConfigContainer;
}

function getModuleNames() {
	var i,
		moduleNames = [];

	for ( i in config.modules ) {
		if ( config.modules.hasOwnProperty( i ) ) {
			moduleNames.push( i );
		}
	}

	moduleNames.sort(function( a, b ) {
		return a.localeCompare( b );
	});

	return moduleNames;
}

function toolbarModuleFilterHtml() {
	var i,
		moduleFilterHtml = "",
		moduleNames = getModuleNames();

	if ( moduleNames.length <= 1 ) {
		return false;
	}

	moduleFilterHtml += "<label for='qunit-modulefilter'>Module: </label>" +
		"<select id='qunit-modulefilter' name='modulefilter'><option value='' " +
		( config.module === undefined ? "selected='selected'" : "" ) +
		">< All Modules ></option>";

	for ( i = 0; i < moduleNames.length; i++ ) {
		moduleFilterHtml += "<option value='" +
			escapeText( encodeURIComponent( moduleNames[ i ] ) ) + "' " +
			( config.module === moduleNames[ i ] ? "selected='selected'" : "" ) +
			">" + escapeText( moduleNames[ i ] ) + "</option>";
	}
	moduleFilterHtml += "</select>";

	return moduleFilterHtml;
}

function toolbarModuleFilter() {
	var moduleFilter = document.createElement( "span" ),
		moduleFilterHtml = toolbarModuleFilterHtml();

	if ( !moduleFilterHtml ) {
		return false;
	}

	moduleFilter.setAttribute( "id", "qunit-modulefilter-container" );
	moduleFilter.innerHTML = moduleFilterHtml;

	addEvent( moduleFilter.lastChild, "change", function() {
		var selectBox = moduleFilter.getElementsByTagName( "select" )[ 0 ],
			selectedModule = decodeURIComponent( selectBox.options[ selectBox.selectedIndex ].value );

		window.location = QUnit.url({
			module: ( selectedModule === "" ) ? undefined : selectedModule,

			// Remove any existing filters
			filter: undefined,
			testNumber: undefined
		});
	});

	return moduleFilter;
}

function toolbarFilter() {
	var testList = id( "qunit-tests" ),
		filter = document.createElement( "input" );

	filter.type = "checkbox";
	filter.id = "qunit-filter-pass";

	addEvent( filter, "click", function() {
		if ( filter.checked ) {
			addClass( testList, "hidepass" );
			if ( defined.sessionStorage ) {
				sessionStorage.setItem( "qunit-filter-passed-tests", "true" );
			}
		} else {
			removeClass( testList, "hidepass" );
			if ( defined.sessionStorage ) {
				sessionStorage.removeItem( "qunit-filter-passed-tests" );
			}
		}
	});

	if ( config.hidepassed || defined.sessionStorage &&
			sessionStorage.getItem( "qunit-filter-passed-tests" ) ) {
		filter.checked = true;

		addClass( testList, "hidepass" );
	}

	return filter;
}

function toolbarLabel() {
	var label = document.createElement( "label" );
	label.setAttribute( "for", "qunit-filter-pass" );
	label.setAttribute( "title", "Only show tests and assertions that fail. Stored in sessionStorage." );
	label.innerHTML = "Hide passed tests";

	return label;
}

function appendToolbar() {
	var moduleFilter,
		toolbar = id( "qunit-testrunner-toolbar" );

	if ( toolbar ) {
		toolbar.appendChild( toolbarFilter() );
		toolbar.appendChild( toolbarLabel() );
		toolbar.appendChild( toolbarUrlConfigContainer() );

		moduleFilter = toolbarModuleFilter();
		if ( moduleFilter ) {
			toolbar.appendChild( moduleFilter );
		}
	}
}

function appendBanner() {
	var banner = id( "qunit-banner" );

	if ( banner ) {
		banner.className = "";
		banner.innerHTML = "<a href='" +
			QUnit.url({ filter: undefined, module: undefined, testNumber: undefined }) +
			"'>" + banner.innerHTML + "</a> ";
	}
}

function appendTestResults() {
	var tests = id( "qunit-tests" ),
		result = id( "qunit-testresult" );

	if ( result ) {
		result.parentNode.removeChild( result );
	}

	if ( tests ) {
		tests.innerHTML = "";
		result = document.createElement( "p" );
		result.id = "qunit-testresult";
		result.className = "result";
		tests.parentNode.insertBefore( result, tests );
		result.innerHTML = "Running...<br>&nbsp;";
	}
}

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

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

// HTML Reporter initialization and load
QUnit.begin(function() {
	var qunit = id( "qunit" );

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

	appendBanner();
	appendTestResults();
	appendUserAgent();
	appendToolbar();
	storeFixture();
});

QUnit.done(function( details ) {
	var i, key,
		banner = id( "qunit-banner" ),
		tests = id( "qunit-tests" ),
		html = [
			"Tests completed in ",
			details.runtime,
			" milliseconds.<br>",
			"<span class='passed'>",
			details.passed,
			"</span> assertions of <span class='total'>",
			details.total,
			"</span> passed, <span class='failed'>",
			details.failed,
			"</span> failed."
		].join( "" );

	if ( banner ) {
		banner.className = details.failed ? "qunit-fail" : "qunit-pass";
	}

	if ( tests ) {
		id( "qunit-testresult" ).innerHTML = html;
	}

	if ( config.altertitle && defined.document && 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 = [
			( details.failed ? "\u2716" : "\u2714" ),
			document.title.replace( /^[\u2714\u2716] /i, "" )
		].join( " " );
	}

	// clear own sessionStorage items if all tests passed
	if ( config.reorder && defined.sessionStorage && details.failed === 0 ) {
		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 ( config.scrolltop && window.scrollTo ) {
		window.scrollTo( 0, 0 );
	}
});

function getNameHtml( name, module ) {
	var nameHtml = "";

	if ( module ) {
		nameHtml = "<span class='module-name'>" + escapeText( module ) + "</span>: ";
	}

	nameHtml += "<span class='test-name'>" + escapeText( name ) + "</span>";

	return nameHtml;
}

QUnit.testStart(function( details ) {
	var a, b, li, running, assertList,
		name = getNameHtml( details.name, details.module ),
		tests = id( "qunit-tests" );

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

		a = document.createElement( "a" );
		a.innerHTML = "Rerun";
		a.href = QUnit.url({ testNumber: details.testNumber });

		li = document.createElement( "li" );
		li.appendChild( b );
		li.appendChild( a );
		li.className = "running";
		li.id = "qunit-test-output" + details.testNumber;

		assertList = document.createElement( "ol" );
		assertList.className = "qunit-assert-list";

		li.appendChild( assertList );

		tests.appendChild( li );
	}

	running = id( "qunit-testresult" );
	if ( running ) {
		running.innerHTML = "Running: <br>" + name;
	}

});

QUnit.log(function( details ) {
	var assertList, assertLi,
		message, expected, actual,
		testItem = id( "qunit-test-output" + details.testNumber );

	if ( !testItem ) {
		return;
	}

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

	// pushFailure doesn't provide details.expected
	// when it calls, it's implicit to also not show expected and diff stuff
	// Also, we need to check details.expected existence, as it can exist and be undefined
	if ( !details.result && hasOwn.call( details, "expected" ) ) {
		expected = escapeText( QUnit.dump.parse( details.expected ) );
		actual = escapeText( QUnit.dump.parse( details.actual ) );
		message += "<table><tr class='test-expected'><th>Expected: </th><td><pre>" +
			expected +
			"</pre></td></tr>";

		if ( actual !== expected ) {
			message += "<tr class='test-actual'><th>Result: </th><td><pre>" +
				actual + "</pre></td></tr>" +
				"<tr class='test-diff'><th>Diff: </th><td><pre>" +
				QUnit.diff( expected, actual ) + "</pre></td></tr>";
		}

		if ( details.source ) {
			message += "<tr class='test-source'><th>Source: </th><td><pre>" +
				escapeText( details.source ) + "</pre></td></tr>";
		}

		message += "</table>";

	// this occours when pushFailure is set and we have an extracted stack trace
	} else if ( !details.result && details.source ) {
		message += "<table>" +
			"<tr class='test-source'><th>Source: </th><td><pre>" +
			escapeText( details.source ) + "</pre></td></tr>" +
			"</table>";
	}

	assertList = testItem.getElementsByTagName( "ol" )[ 0 ];

	assertLi = document.createElement( "li" );
	assertLi.className = details.result ? "pass" : "fail";
	assertLi.innerHTML = message;
	assertList.appendChild( assertLi );
});

QUnit.testDone(function( details ) {
	var testTitle, time, testItem, assertList,
		good, bad, testCounts,
		tests = id( "qunit-tests" );

	// QUnit.reset() is deprecated and will be replaced for a new
	// fixture reset function on QUnit 2.0/2.1.
	// It's still called here for backwards compatibility handling
	QUnit.reset();

	if ( !tests ) {
		return;
	}

	testItem = id( "qunit-test-output" + details.testNumber );
	assertList = testItem.getElementsByTagName( "ol" )[ 0 ];

	good = details.passed;
	bad = details.failed;

	// store result when possible
	if ( config.reorder && defined.sessionStorage ) {
		if ( bad ) {
			sessionStorage.setItem( "qunit-test-" + details.module + "-" + details.name, bad );
		} else {
			sessionStorage.removeItem( "qunit-test-" + details.module + "-" + details.name );
		}
	}

	if ( bad === 0 ) {
		addClass( assertList, "qunit-collapsed" );
	}

	// testItem.firstChild is the test name
	testTitle = testItem.firstChild;

	testCounts = bad ?
		"<b class='failed'>" + bad + "</b>, " + "<b class='passed'>" + good + "</b>, " :
		"";

	testTitle.innerHTML += " <b class='counts'>(" + testCounts +
		details.assertions.length + ")</b>";

	addEvent( testTitle, "click", function() {
		toggleClass( assertList, "qunit-collapsed" );
	});

	time = document.createElement( "span" );
	time.className = "runtime";
	time.innerHTML = details.runtime + " ms";

	testItem.className = bad ? "fail" : "pass";

	testItem.insertBefore( time, assertList );
});

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

if ( defined.document ) {
	addEvent( window, "load", QUnit.load );
}

})();