bootstrap/js/tests/vendor/qunit.js

The most popular front-end framework for developing responsive, mobile first projects on the web.

/*!
 * QUnit 2.0.1
 * https://qunitjs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * https://jquery.org/license
 *
 * Date: 2016-07-23T19:39Z
 */

( function( global ) {

var QUnit = {};

var Date = global.Date;
var now = Date.now || function() {
	return new Date().getTime();
};

var setTimeout = global.setTimeout;
var clearTimeout = global.clearTimeout;

// Store a local window from the global to allow direct references.
var window = global.window;

var defined = {
	document: window && window.document !== undefined,
	setTimeout: setTimeout !== undefined,
	sessionStorage: ( function() {
		var x = "qunit-test-string";
		try {
			sessionStorage.setItem( x, x );
			sessionStorage.removeItem( x );
			return true;
		} catch ( e ) {
			return false;
		}
	}() )
};

var fileName = ( sourceFromStacktrace( 0 ) || "" ).replace( /(:\d+)+\)?/, "" ).replace( /.+\//, "" );
var globalStartCalled = false;
var runStarted = false;

var autorun = false;

var toString = Object.prototype.toString,
	hasOwn = Object.prototype.hasOwnProperty;

// 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;
}

// 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;
}

/**
 * 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).
 */
function objectValues ( 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;
}

function extend( a, b, undefOnly ) {
	for ( var prop in b ) {
		if ( hasOwn.call( b, prop ) ) {
			if ( b[ prop ] === undefined ) {
				delete a[ prop ];
			} else if ( !( undefOnly && typeof a[ prop ] !== "undefined" ) ) {
				a[ prop ] = b[ prop ];
			}
		}
	}

	return a;
}

function objectType( 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 "Set":
		case "Map":
		case "Date":
		case "RegExp":
		case "Function":
		case "Symbol":
			return type.toLowerCase();
	}
	if ( typeof obj === "object" ) {
		return "object";
	}
}

// Safe object type checking
function is( type, obj ) {
	return QUnit.objectType( obj ) === type;
}

// Doesn't support IE9, it will return undefined on these browsers
// 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.stack ) {
		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 ];
	}
}

function sourceFromStacktrace( offset ) {
	var error = new Error();

	// Support: Safari <=7 only, IE <=10 - 11 only
	// Not all browsers generate the `stack` property for `new Error()`, see also #636
	if ( !error.stack ) {
		try {
			throw error;
		} catch ( err ) {
			error = err;
		}
	}

	return extractStacktrace( error, offset );
}

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

	// The queue of tests to run
	queue: [],

	// Block until document ready
	blocking: true,

	// 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,

	// HTML Reporter: collapse every test except the first failing test
	// If false, all failing tests will be expanded
	collapse: true,

	// By default, scroll to top of the page when suite is done
	scrolltop: true,

	// Depth up-to which object will be dumped
	maxDepth: 5,

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

	// Placeholder for user-configurable form-exposed URL parameters
	urlConfig: [],

	// Set of all modules.
	modules: [],

	// Stack of nested modules
	moduleStack: [],

	// The first unnamed module
	currentModule: {
		name: "",
		tests: []
	},

	callbacks: {}
};

// Push a loose unnamed module to the modules collection
config.modules.push( config.currentModule );

// Register logging callbacks
function registerLoggingCallbacks( obj ) {
	var i, l, key,
		callbackNames = [ "begin", "done", "log", "testStart", "testDone",
			"moduleStart", "moduleDone" ];

	function registerLoggingCallback( key ) {
		var loggingCallback = function( callback ) {
			if ( objectType( callback ) !== "function" ) {
				throw new Error(
					"QUnit logging methods require a callback function as their first parameters."
				);
			}

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

		return loggingCallback;
	}

	for ( i = 0, l = callbackNames.length; i < l; i++ ) {
		key = callbackNames[ i ];

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

		obj[ key ] = registerLoggingCallback( key );
	}
}

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

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

( function() {
	if ( !defined.document ) {
		return;
	}

	// `onErrorFnPrev` initialized at top of scope
	// Preserve other handlers
	var 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: true } ) );
			}
			return false;
		}

		return ret;
	};
}() );

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

// Expose the current QUnit version
QUnit.version = "2.0.1";

extend( QUnit, {

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

		if ( arguments.length === 2 ) {
			if ( objectType( testEnvironment ) === "function" ) {
				executeNow = testEnvironment;
				testEnvironment = undefined;
			}
		}

		module = createModule();

		if ( testEnvironment && ( testEnvironment.setup || testEnvironment.teardown ) ) {
			console.warn(
				"Module's `setup` and `teardown` are not hooks anymore on QUnit 2.0, use " +
				"`beforeEach` and `afterEach` instead\n" +
				"Details in our upgrade guide at https://qunitjs.com/upgrade-guide-2.x/"
			);
		}

		moduleFns = {
			before: setHook( module, "before" ),
			beforeEach: setHook( module, "beforeEach" ),
			afterEach: setHook( module, "afterEach" ),
			after: setHook( module, "after" )
		};

		if ( objectType( executeNow ) === "function" ) {
			config.moduleStack.push( module );
			setCurrentModule( module );
			executeNow.call( module.testEnvironment, moduleFns );
			config.moduleStack.pop();
			module = module.parentModule || currentModule;
		}

		setCurrentModule( module );

		function createModule() {
			var parentModule = config.moduleStack.length ?
				config.moduleStack.slice( -1 )[ 0 ] : null;
			var moduleName = parentModule !== null ?
				[ parentModule.name, name ].join( " > " ) : name;
			var module = {
				name: moduleName,
				parentModule: parentModule,
				tests: [],
				moduleId: generateHash( moduleName ),
				testsRun: 0
			};

			var env = {};
			if ( parentModule ) {
				parentModule.childModule = module;
				extend( env, parentModule.testEnvironment );
				delete env.beforeEach;
				delete env.afterEach;
			}
			extend( env, testEnvironment );
			module.testEnvironment = env;

			config.modules.push( module );
			return module;
		}

		function setCurrentModule( module ) {
			config.currentModule = module;
		}

	},

	test: test,

	skip: skip,

	only: only,

	start: function( count ) {
		var globalStartAlreadyCalled = globalStartCalled;

		if ( !config.current ) {
			globalStartCalled = true;

			if ( runStarted ) {
				throw new Error( "Called start() while test already started running" );
			} else if ( globalStartAlreadyCalled || count > 1 ) {
				throw new Error( "Called start() outside of a test context too many times" );
			} else if ( config.autostart ) {
				throw new Error( "Called start() outside of a test context when " +
					"QUnit.config.autostart was true" );
			} else if ( !config.pageLoaded ) {

				// The page isn't completely loaded yet, so bail out and let `QUnit.load` handle it
				config.autostart = true;
				return;
			}
		} else {
			throw new Error(
				"QUnit.start cannot be called inside a test context. This feature is removed in " +
				"QUnit 2.0. For async tests, use QUnit.test() with assert.async() instead.\n" +
				"Details in our upgrade guide at https://qunitjs.com/upgrade-guide-2.x/"
			);
		}

		scheduleBegin();
	},

	config: config,

	is: is,

	objectType: objectType,

	extend: extend,

	load: function() {
		config.pageLoaded = true;

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

		if ( !runStarted ) {
			config.blocking = false;

			if ( config.autostart ) {
				scheduleBegin();
			}
		}
	},

	stack: function( offset ) {
		offset = ( offset || 0 ) + 2;
		return sourceFromStacktrace( offset );
	}
} );

registerLoggingCallbacks( QUnit );

function scheduleBegin() {

	runStarted = true;

	// Add a slight delay to allow definition of more modules and tests.
	if ( defined.setTimeout ) {
		setTimeout( function() {
			begin();
		}, 13 );
	} else {
		begin();
	}
}

function begin() {
	var i, l,
		modulesLog = [];

	// If the test run hasn't officially begun yet
	if ( !config.started ) {

		// Record the time of the test run's beginning
		config.started = now();

		// Delete the loose unnamed module if unused.
		if ( config.modules[ 0 ].name === "" && config.modules[ 0 ].tests.length === 0 ) {
			config.modules.shift();
		}

		// Avoid unnecessary information by not logging modules' test environments
		for ( i = 0, l = config.modules.length; i < l; i++ ) {
			modulesLog.push( {
				name: config.modules[ i ].name,
				tests: config.modules[ i ].tests
			} );
		}

		// The test run is officially beginning now
		runLoggingCallbacks( "begin", {
			totalTests: Test.count,
			modules: modulesLog
		} );
	}

	config.blocking = false;
	process( true );
}

function process( last ) {
	function next() {
		process( last );
	}
	var start = now();
	config.depth = ( config.depth || 0 ) + 1;

	while ( config.queue.length && !config.blocking ) {
		if ( !defined.setTimeout || config.updateRate <= 0 ||
				( ( now() - start ) < config.updateRate ) ) {
			if ( config.current ) {

				// Reset async tracking for each phase of the Test lifecycle
				config.current.usedAsync = false;
			}
			config.queue.shift()();
		} else {
			setTimeout( next, 13 );
			break;
		}
	}
	config.depth--;
	if ( last && !config.blocking && !config.queue.length && config.depth === 0 ) {
		done();
	}
}

function done() {
	var runtime, passed;

	autorun = true;

	// Log the last module results
	if ( config.previousModule ) {
		runLoggingCallbacks( "moduleDone", {
			name: config.previousModule.name,
			tests: config.previousModule.tests,
			failed: config.moduleStats.bad,
			passed: config.moduleStats.all - config.moduleStats.bad,
			total: config.moduleStats.all,
			runtime: now() - config.moduleStats.started
		} );
	}
	delete config.previousModule;

	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
	} );
}

function setHook( module, hookName ) {
	if ( module.testEnvironment === undefined ) {
		module.testEnvironment = {};
	}

	return function( callback ) {
		module.testEnvironment[ hookName ] = callback;
	};
}

var unitSampler,
	focused = false,
	priorityCount = 0;

function Test( settings ) {
	var i, l;

	++Test.count;

	this.expected = null;
	extend( this, settings );
	this.assertions = [];
	this.semaphore = 0;
	this.usedAsync = false;
	this.module = config.currentModule;
	this.stack = sourceFromStacktrace( 3 );

	// Register unique strings
	for ( i = 0, l = this.module.tests; i < l.length; i++ ) {
		if ( this.module.tests[ i ].name === this.testName ) {
			this.testName += " ";
		}
	}

	this.testId = generateHash( this.module.name, this.testName );

	this.module.tests.push( {
		name: this.testName,
		testId: this.testId
	} );

	if ( settings.skip ) {

		// Skipped tests will fully ignore any sent callback
		this.callback = function() {};
		this.async = false;
		this.expected = 0;
	} else {
		this.assert = new Assert( this );
	}
}

Test.count = 0;

Test.prototype = {
	before: 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.name,
					tests: config.previousModule.tests,
					failed: config.moduleStats.bad,
					passed: config.moduleStats.all - config.moduleStats.bad,
					total: config.moduleStats.all,
					runtime: now() - config.moduleStats.started
				} );
			}
			config.previousModule = this.module;
			config.moduleStats = { all: 0, bad: 0, started: now() };
			runLoggingCallbacks( "moduleStart", {
				name: this.module.name,
				tests: this.module.tests
			} );
		}

		config.current = this;

		if ( this.module.testEnvironment ) {
			delete this.module.testEnvironment.before;
			delete this.module.testEnvironment.beforeEach;
			delete this.module.testEnvironment.afterEach;
			delete this.module.testEnvironment.after;
		}
		this.testEnvironment = extend( {}, this.module.testEnvironment );

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

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

	run: function() {
		var promise;

		config.current = this;

		this.callbackStarted = now();

		if ( config.notrycatch ) {
			runTest( this );
			return;
		}

		try {
			runTest( this );
		} catch ( e ) {
			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 ) {
				internalRecover( this );
			}
		}

		function runTest( test ) {
			promise = test.callback.call( test.testEnvironment, test.assert );
			test.resolvePromise( promise );
		}
	},

	after: function() {
		checkPollution();
	},

	queueHook: function( hook, hookName, hookOwner ) {
		var promise,
			test = this;
		return function runHook() {
			if ( hookName === "before" ) {
				if ( hookOwner.testsRun !== 0 ) {
					return;
				}

				test.preserveEnvironment = true;
			}

			if ( hookName === "after" && hookOwner.testsRun !== numberOfTests( hookOwner ) - 1 ) {
				return;
			}

			config.current = test;
			if ( config.notrycatch ) {
				callHook();
				return;
			}
			try {
				callHook();
			} catch ( error ) {
				test.pushFailure( hookName + " failed on " + test.testName + ": " +
				( error.message || error ), extractStacktrace( error, 0 ) );
			}

			function callHook() {
				promise = hook.call( test.testEnvironment, test.assert );
				test.resolvePromise( promise, hookName );
			}
		};
	},

	// Currently only used for module level hooks, can be used to add global level ones
	hooks: function( handler ) {
		var hooks = [];

		function processHooks( test, module ) {
			if ( module.parentModule ) {
				processHooks( test, module.parentModule );
			}
			if ( module.testEnvironment &&
				QUnit.objectType( module.testEnvironment[ handler ] ) === "function" ) {
				hooks.push( test.queueHook( module.testEnvironment[ handler ], handler, module ) );
			}
		}

		// Hooks are ignored on skipped tests
		if ( !this.skip ) {
			processHooks( this, this.module );
		}
		return hooks;
	},

	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,
			skipped = !!this.skip,
			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++;
			}
		}

		notifyTestsRan( this.module );
		runLoggingCallbacks( "testDone", {
			name: this.testName,
			module: this.module.name,
			skipped: skipped,
			failed: bad,
			passed: this.assertions.length - bad,
			total: this.assertions.length,
			runtime: skipped ? 0 : this.runtime,

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

			// Source of Test
			source: this.stack
		} );

		config.current = undefined;
	},

	preserveTestEnvironment: function() {
		if ( this.preserveEnvironment ) {
			this.module.testEnvironment = this.testEnvironment;
			this.testEnvironment = extend( {}, this.module.testEnvironment );
		}
	},

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

		if ( !this.valid() ) {
			return;
		}

		function run() {

			// Each of these can by async
			synchronize( [
				function() {
					test.before();
				},

				test.hooks( "before" ),

				function() {
					test.preserveTestEnvironment();
				},

				test.hooks( "beforeEach" ),

				function() {
					test.run();
				},

				test.hooks( "afterEach" ).reverse(),
				test.hooks( "after" ).reverse(),

				function() {
					test.after();
				},

				function() {
					test.finish();
				}
			] );
		}

		// Prioritize previously failed tests, detected from sessionStorage
		priority = QUnit.config.reorder && defined.sessionStorage &&
				+sessionStorage.getItem( "qunit-test-" + this.module.name + "-" + this.testName );

		return synchronize( run, priority, config.seed );
	},

	pushResult: function( resultInfo ) {

		// Destructure of resultInfo = { result, actual, expected, message, negative }
		var source,
			details = {
				module: this.module.name,
				name: this.testName,
				result: resultInfo.result,
				message: resultInfo.message,
				actual: resultInfo.actual,
				expected: resultInfo.expected,
				testId: this.testId,
				negative: resultInfo.negative || false,
				runtime: now() - this.started
			};

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

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

		runLoggingCallbacks( "log", details );

		this.assertions.push( {
			result: !!resultInfo.result,
			message: resultInfo.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,
				name: this.testName,
				result: false,
				message: message || "error",
				actual: actual || null,
				testId: this.testId,
				runtime: now() - this.started
			};

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

		runLoggingCallbacks( "log", details );

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

	resolvePromise: function( promise, phase ) {
		var then, resume, message,
			test = this;
		if ( promise != null ) {
			then = promise.then;
			if ( QUnit.objectType( then ) === "function" ) {
				resume = internalStop( test );
				then.call(
					promise,
					function() { resume(); },
					function( error ) {
						message = "Promise rejected " +
							( !phase ? "during" : phase.replace( /Each$/, "" ) ) +
							" " + test.testName + ": " + ( error.message || error );
						test.pushFailure( message, extractStacktrace( error, 0 ) );

						// Else next test will carry the responsibility
						saveGlobal();

						// Unblock
						resume();
					}
				);
			}
		}
	},

	valid: function() {
		var filter = config.filter,
			regexFilter = /^(!?)\/([\w\W]*)\/(i?$)/.exec( filter ),
			module = config.module && config.module.toLowerCase(),
			fullName = ( this.module.name + ": " + this.testName );

		function moduleChainNameMatch( testModule ) {
			var testModuleName = testModule.name ? testModule.name.toLowerCase() : null;
			if ( testModuleName === module ) {
				return true;
			} else if ( testModule.parentModule ) {
				return moduleChainNameMatch( testModule.parentModule );
			} else {
				return false;
			}
		}

		function moduleChainIdMatch( testModule ) {
			return inArray( testModule.moduleId, config.moduleId ) > -1 ||
				testModule.parentModule && moduleChainIdMatch( testModule.parentModule );
		}

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

		if ( config.moduleId && config.moduleId.length > 0 &&
			!moduleChainIdMatch( this.module ) ) {

			return false;
		}

		if ( config.testId && config.testId.length > 0 &&
			inArray( this.testId, config.testId ) < 0 ) {

			return false;
		}

		if ( module && !moduleChainNameMatch( this.module ) ) {
			return false;
		}

		if ( !filter ) {
			return true;
		}

		return regexFilter ?
			this.regexFilter( !!regexFilter[ 1 ], regexFilter[ 2 ], regexFilter[ 3 ], fullName ) :
			this.stringFilter( filter, fullName );
	},

	regexFilter: function( exclude, pattern, flags, fullName ) {
		var regex = new RegExp( pattern, flags );
		var match = regex.test( fullName );

		return match !== exclude;
	},

	stringFilter: function( filter, fullName ) {
		filter = filter.toLowerCase();
		fullName = fullName.toLowerCase();

		var 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;
	}
};

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;

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

// Based on Java's String.hashCode, a simple but not
// rigorously collision resistant hashing function
function generateHash( module, testName ) {
	var hex,
		i = 0,
		hash = 0,
		str = module + "\x1C" + testName,
		len = str.length;

	for ( ; i < len; i++ ) {
		hash  = ( ( hash << 5 ) - hash ) + str.charCodeAt( i );
		hash |= 0;
	}

	// Convert the possibly negative integer hash code into an 8 character hex string, which isn't
	// strictly necessary but increases user understanding that the id is a SHA-like hash
	hex = ( 0x100000000 + hash ).toString( 16 );
	if ( hex.length < 8 ) {
		hex = "0000000" + hex;
	}

	return hex.slice( -8 );
}

function synchronize( callback, priority, seed ) {
	var last = !priority,
		index;

	if ( QUnit.objectType( callback ) === "array" ) {
		while ( callback.length ) {
			synchronize( callback.shift() );
		}
		return;
	}

	if ( priority ) {
		config.queue.splice( priorityCount++, 0, callback );
	} else if ( seed ) {
		if ( !unitSampler ) {
			unitSampler = unitSamplerGenerator( seed );
		}

		// Insert into a random position after all priority items
		index = Math.floor( unitSampler() * ( config.queue.length - priorityCount + 1 ) );
		config.queue.splice( priorityCount + index, 0, callback );
	} else {
		config.queue.push( callback );
	}

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

function unitSamplerGenerator( seed ) {

	// 32-bit xorshift, requires only a nonzero seed
	// http://excamera.com/sphinx/article-xorshift.html
	var sample = parseInt( generateHash( seed ), 16 ) || -1;
	return function() {
		sample ^= sample << 13;
		sample ^= sample >>> 17;
		sample ^= sample << 5;

		// ECMAScript has no unsigned number type
		if ( sample < 0 ) {
			sample += 0x100000000;
		}

		return sample / 0x100000000;
	};
}

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

	if ( config.noglobals ) {
		for ( var key in global ) {
			if ( hasOwn.call( global, 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( ", " ) );
	}
}

// Will be exposed as QUnit.test
function test( testName, callback ) {
	if ( focused )  { return; }

	var newTest;

	newTest = new Test( {
		testName: testName,
		callback: callback
	} );

	newTest.queue();
}

// Will be exposed as QUnit.skip
function skip( testName ) {
	if ( focused )  { return; }

	var test = new Test( {
		testName: testName,
		skip: true
	} );

	test.queue();
}

// Will be exposed as QUnit.only
function only( testName, callback ) {
	var newTest;

	if ( focused )  { return; }

	QUnit.config.queue.length = 0;
	focused = true;

	newTest = new Test( {
		testName: testName,
		callback: callback
	} );

	newTest.queue();
}

// Put a hold on processing and return a function that will release it.
function internalStop( test ) {
	var released = false;

	test.semaphore += 1;
	config.blocking = true;

	// Set a recovery timeout, if so configured.
	if ( config.testTimeout && defined.setTimeout ) {
		clearTimeout( config.timeout );
		config.timeout = setTimeout( function() {
			QUnit.pushFailure( "Test timed out", sourceFromStacktrace( 2 ) );
			internalRecover( test );
		}, config.testTimeout );
	}

	return function resume() {
		if ( released ) {
			return;
		}

		released = true;
		test.semaphore -= 1;
		internalStart( test );
	};
}

// Forcefully release all processing holds.
function internalRecover( test ) {
	test.semaphore = 0;
	internalStart( test );
}

// Release a processing hold, scheduling a resumption attempt if no holds remain.
function internalStart( test ) {

	// If semaphore is non-numeric, throw error
	if ( isNaN( test.semaphore ) ) {
		test.semaphore = 0;

		QUnit.pushFailure(
			"Invalid value on test.semaphore",
			sourceFromStacktrace( 2 )
		);
		return;
	}

	// Don't start until equal number of stop-calls
	if ( test.semaphore > 0 ) {
		return;
	}

	// Throw an Error if start is called more often than stop
	if ( test.semaphore < 0 ) {
		test.semaphore = 0;

		QUnit.pushFailure(
			"Tried to restart test while already started (test's semaphore was 0 already)",
			sourceFromStacktrace( 2 )
		);
		return;
	}

	// Add a slight delay to allow more assertions etc.
	if ( defined.setTimeout ) {
		if ( config.timeout ) {
			clearTimeout( config.timeout );
		}
		config.timeout = setTimeout( function() {
			if ( test.semaphore > 0 ) {
				return;
			}

			if ( config.timeout ) {
				clearTimeout( config.timeout );
			}

			begin();
		}, 13 );
	} else {
		begin();
	}
}

function numberOfTests( module ) {
	var count = module.tests.length;
	while ( module = module.childModule ) {
		count += module.tests.length;
	}
	return count;
}

function notifyTestsRan( module ) {
	module.testsRun++;
	while ( module = module.parentModule ) {
		module.testsRun++;
	}
}

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;
		}
	},

	// Put a hold on processing and return a function that will release it a maximum of once.
	async: function( count ) {
		var resume,
			test = this.test,
			popped = false,
			acceptCallCount = count;

		if ( typeof acceptCallCount === "undefined" ) {
			acceptCallCount = 1;
		}

		test.usedAsync = true;
		resume = internalStop( test );

		return function done() {

			if ( popped ) {
				test.pushFailure( "Too many calls to the `assert.async` callback",
					sourceFromStacktrace( 2 ) );
				return;
			}
			acceptCallCount -= 1;
			if ( acceptCallCount > 0 ) {
				return;
			}

			popped = true;
			resume();
		};
	},

	// Exports test.push() to the user API
	// Alias of pushResult.
	push: function( result, actual, expected, message, negative ) {
		var currentAssert = this instanceof Assert ? this : QUnit.config.current.assert;
		return currentAssert.pushResult( {
			result: result,
			actual: actual,
			expected: expected,
			message: message,
			negative: negative
		} );
	},

	pushResult: function( resultInfo ) {

		// Destructure of resultInfo = { result, actual, expected, message, negative }
		var assert = this,
			currentTest = ( assert instanceof Assert && assert.test ) || QUnit.config.current;

		// 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 ( !currentTest ) {
			throw new Error( "assertion outside test context, in " + sourceFromStacktrace( 2 ) );
		}

		if ( currentTest.usedAsync === true && currentTest.semaphore === 0 ) {
			currentTest.pushFailure( "Assertion after the final `assert.async` was resolved",
				sourceFromStacktrace( 2 ) );

			// Allow this assertion to continue running anyway...
		}

		if ( !( assert instanceof Assert ) ) {
			assert = currentTest.assert;
		}

		return assert.test.pushResult( resultInfo );
	},

	ok: function( result, message ) {
		message = message || ( result ? "okay" : "failed, expected argument to be truthy, was: " +
			QUnit.dump.parse( result ) );
		this.pushResult( {
			result: !!result,
			actual: result,
			expected: true,
			message: message
		} );
	},

	notOk: function( result, message ) {
		message = message || ( !result ? "okay" : "failed, expected argument to be falsy, was: " +
			QUnit.dump.parse( result ) );
		this.pushResult( {
			result: !result,
			actual: result,
			expected: false,
			message: message
		} );
	},

	equal: function( actual, expected, message ) {
		/*jshint eqeqeq:false */
		this.pushResult( {
			result: expected == actual,
			actual: actual,
			expected: expected,
			message: message
		} );
	},

	notEqual: function( actual, expected, message ) {
		/*jshint eqeqeq:false */
		this.pushResult( {
			result: expected != actual,
			actual: actual,
			expected: expected,
			message: message,
			negative: true
		} );
	},

	propEqual: function( actual, expected, message ) {
		actual = objectValues( actual );
		expected = objectValues( expected );
		this.pushResult( {
			result: QUnit.equiv( actual, expected ),
			actual: actual,
			expected: expected,
			message: message
		} );
	},

	notPropEqual: function( actual, expected, message ) {
		actual = objectValues( actual );
		expected = objectValues( expected );
		this.pushResult( {
			result: !QUnit.equiv( actual, expected ),
			actual: actual,
			expected: expected,
			message: message,
			negative: true
		} );
	},

	deepEqual: function( actual, expected, message ) {
		this.pushResult( {
			result: QUnit.equiv( actual, expected ),
			actual: actual,
			expected: expected,
			message: message
		} );
	},

	notDeepEqual: function( actual, expected, message ) {
		this.pushResult( {
			result: !QUnit.equiv( actual, expected ),
			actual: actual,
			expected: expected,
			message: message,
			negative: true
		} );
	},

	strictEqual: function( actual, expected, message ) {
		this.pushResult( {
			result: expected === actual,
			actual: actual,
			expected: expected,
			message: message
		} );
	},

	notStrictEqual: function( actual, expected, message ) {
		this.pushResult( {
			result: expected !== actual,
			actual: actual,
			expected: expected,
			message: message,
			negative: true
		} );
	},

	"throws": function( block, expected, message ) {
		var actual, expectedType,
			expectedOutput = expected,
			ok = false,
			currentTest = ( this instanceof Assert && this.test ) || QUnit.config.current;

		// 'expected' is optional unless doing string comparison
		if ( QUnit.objectType( expected ) === "string" ) {
			if ( message == null ) {
				message = expected;
				expected = null;
			} else {
				throw new Error(
					"throws/raises does not accept a string value for the expected argument.\n" +
					"Use a non-string object value (e.g. regExp) instead if it's necessary." +
					"Details in our upgrade guide at https://qunitjs.com/upgrade-guide-2.x/"
				);
			}
		}

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

		currentTest.assert.pushResult( {
			result: ok,
			actual: actual,
			expected: expectedOutput,
			message: message
		} );
	}
};

// Provide an alternative to assert.throws(), for environments that consider throws a reserved word
// Known to us are: Closure Compiler, Narwhal
( function() {
	/*jshint sub:true */
	Assert.prototype.raises = Assert.prototype [ "throws" ]; //jscs:ignore requireDotNotation
}() );

function errorString( error ) {
	var name, message,
		resultErrorString = error.toString();
	if ( resultErrorString.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 resultErrorString;
	}
}

// Test for equality any JavaScript type.
// Author: Philippe Rathé <prathe@gmail.com>
QUnit.equiv = ( function() {

	// Stack to decide between skip/abort functions
	var callers = [];

	// Stack to avoiding loops from circular referencing
	var parents = [];
	var parentsB = [];

	var getProto = Object.getPrototypeOf || function( obj ) {

		/*jshint proto: true */
		return obj.__proto__;
	};

	function useStrictEquality( b, a ) {

		// To catch short annotation VS 'new' annotation of a declaration. e.g.:
		// `var i = 1;`
		// `var j = new Number(1);`
		if ( typeof a === "object" ) {
			a = a.valueOf();
		}
		if ( typeof b === "object" ) {
			b = b.valueOf();
		}

		return a === b;
	}

	function compareConstructors( a, b ) {
		var protoA = getProto( a );
		var protoB = getProto( b );

		// Comparing constructors is more strict than using `instanceof`
		if ( a.constructor === b.constructor ) {
			return true;
		}

		// Ref #851
		// If the obj prototype descends from a null constructor, treat it
		// as a null prototype.
		if ( protoA && protoA.constructor === null ) {
			protoA = null;
		}
		if ( protoB && protoB.constructor === null ) {
			protoB = null;
		}

		// Allow objects with no prototype to be equivalent to
		// objects with Object as their constructor.
		if ( ( protoA === null && protoB === Object.prototype ) ||
				( protoB === null && protoA === Object.prototype ) ) {
			return true;
		}

		return false;
	}

	function getRegExpFlags( regexp ) {
		return "flags" in regexp ? regexp.flags : regexp.toString().match( /[gimuy]*$/ )[ 0 ];
	}

	var callbacks = {
		"string": useStrictEquality,
		"boolean": useStrictEquality,
		"number": useStrictEquality,
		"null": useStrictEquality,
		"undefined": useStrictEquality,
		"symbol": useStrictEquality,
		"date": useStrictEquality,

		"nan": function() {
			return true;
		},

		"regexp": function( b, a ) {
			return a.source === b.source &&

				// Include flags in the comparison
				getRegExpFlags( a ) === getRegExpFlags( b );
		},

		// - 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;

			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;
		},

		"set": function( b, a ) {
			var innerEq,
				outerEq = true;

			if ( a.size !== b.size ) {
				return false;
			}

			a.forEach( function( aVal ) {
				innerEq = false;

				b.forEach( function( bVal ) {
					if ( innerEquiv( bVal, aVal ) ) {
						innerEq = true;
					}
				} );

				if ( !innerEq ) {
					outerEq = false;
				}
			} );

			return outerEq;
		},

		"map": function( b, a ) {
			var innerEq,
				outerEq = true;

			if ( a.size !== b.size ) {
				return false;
			}

			a.forEach( function( aVal, aKey ) {
				innerEq = false;

				b.forEach( function( bVal, bKey ) {
					if ( innerEquiv( [ bVal, bKey ], [ aVal, aKey ] ) ) {
						innerEq = true;
					}
				} );

				if ( !innerEq ) {
					outerEq = false;
				}
			} );

			return outerEq;
		},

		"object": function( b, a ) {
			var i, j, loop, aCircular, bCircular;

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

			if ( compareConstructors( a, b ) === false ) {
				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();

			// Unstack, we are done
			callers.pop();

			for ( i in b ) {

				// Collect b's properties
				bProperties.push( i );
			}

			// Ensures identical properties name
			return eq && innerEquiv( aProperties.sort(), bProperties.sort() );
		}
	};

	function typeEquiv( a, b ) {
		var type = QUnit.objectType( a );
		return QUnit.objectType( b ) === type && callbacks[ type ]( b, a );
	}

	// The real equiv function
	function innerEquiv( a, b ) {

		// We're done when there's nothing more to compare
		if ( arguments.length < 2 ) {
			return true;
		}

		// Require type-specific equality
		return ( a === b || typeEquiv( a, b ) ) &&

			// ...across all consecutive argument pairs
			( arguments.length === 2 || innerEquiv.apply( this, [].slice.call( arguments, 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, "\\\\" ).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 );

		if ( dump.maxDepth && dump.depth > dump.maxDepth ) {
			return "[object Array]";
		}

		this.up();
		while ( i-- ) {
			ret[ i ] = this.parse( arr[ i ], undefined, stack );
		}
		this.down();
		return join( "[", ret, "]" );
	}

	function isArray( obj ) {
		return (

			//Native Arrays
			toString.call( obj ) === "[object Array]" ||

			// NodeList objects
			( typeof obj.length === "number" && obj.item !== undefined ) &&
			( obj.length ?
				obj.item( 0 ) === obj[ 0 ] :
				( obj.item( 0 ) === null && obj[ 0 ] === undefined )
			)
		);
	}

	var reName = /^function (\w+)/,
		dump = {

			// The objType is used mostly internally, you can fix a (custom) type in advance
			parse: function( obj, objType, stack ) {
				stack = stack || [];
				var res, parser, parserType,
					inStack = inArray( obj, stack );

				if ( inStack !== -1 ) {
					return "recursion(" + ( inStack - stack.length ) + ")";
				}

				objType = objType || this.typeOf( obj  );
				parser = this.parsers[ objType ];
				parserType = typeof parser;

				if ( parserType === "function" ) {
					stack.push( obj );
					res = parser.call( this, obj, stack );
					stack.pop();
					return res;
				}
				return ( parserType === "string" ) ? parser : this.parsers.error;
			},
			typeOf: function( obj ) {
				var type;

				if ( obj === null ) {
					type = "null";
				} else if ( typeof obj === "undefined" ) {
					type = "undefined";
				} else if ( QUnit.is( "regexp", obj ) ) {
					type = "regexp";
				} else if ( QUnit.is( "date", obj ) ) {
					type = "date";
				} else if ( QUnit.is( "function", obj ) ) {
					type = "function";
				} else if ( obj.setInterval !== undefined &&
						obj.document !== undefined &&
						obj.nodeType === undefined ) {
					type = "window";
				} else if ( obj.nodeType === 9 ) {
					type = "document";
				} else if ( obj.nodeType ) {
					type = "node";
				} else if ( isArray( obj ) ) {
					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 ? "&#160;" : " ";
			},

			// 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, "&#160;" );
				}
				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,
			maxDepth: QUnit.config.maxDepth,

			// 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 ) {
					var keys, key, val, i, nonEnumerableProperties,
						ret = [];

					if ( dump.maxDepth && dump.depth > dump.maxDepth ) {
						return "[object Object]";
					}

					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 && inArray( key, keys ) < 0 ) {
							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'