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/lib/syntaxhighlighter_3.0.83/tests/js/qunit.js

#
JavaScript | 1069 lines | 811 code | 161 blank | 97 comment | 167 complexity | 5c8bd865900617a032e1a596fd146c96 MD5 | raw file
   1/*
   2 * QUnit - A JavaScript Unit Testing Framework
   3 * 
   4 * http://docs.jquery.com/QUnit
   5 *
   6 * Copyright (c) 2009 John Resig, JĂśrn Zaefferer
   7 * Dual licensed under the MIT (MIT-LICENSE.txt)
   8 * and GPL (GPL-LICENSE.txt) licenses.
   9 */
  10
  11(function(window) {
  12
  13var QUnit = {
  14
  15	// Initialize the configuration options
  16	init: function() {
  17		config = {
  18			stats: { all: 0, bad: 0 },
  19			moduleStats: { all: 0, bad: 0 },
  20			started: +new Date,
  21			updateRate: 1000,
  22			blocking: false,
  23			autorun: false,
  24			assertions: [],
  25			filters: [],
  26			queue: []
  27		};
  28
  29		var tests = id("qunit-tests"),
  30			banner = id("qunit-banner"),
  31			result = id("qunit-testresult");
  32
  33		if ( tests ) {
  34			tests.innerHTML = "";
  35		}
  36
  37		if ( banner ) {
  38			banner.className = "";
  39		}
  40
  41		if ( result ) {
  42			result.parentNode.removeChild( result );
  43		}
  44	},
  45	
  46	// call on start of module test to prepend name to all tests
  47	module: function(name, testEnvironment) {
  48		config.currentModule = name;
  49
  50		synchronize(function() {
  51			if ( config.currentModule ) {
  52				QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
  53			}
  54
  55			config.currentModule = name;
  56			config.moduleTestEnvironment = testEnvironment;
  57			config.moduleStats = { all: 0, bad: 0 };
  58
  59			QUnit.moduleStart( name, testEnvironment );
  60		});
  61	},
  62
  63	asyncTest: function(testName, expected, callback) {
  64		if ( arguments.length === 2 ) {
  65			callback = expected;
  66			expected = 0;
  67		}
  68
  69		QUnit.test(testName, expected, callback, true);
  70	},
  71	
  72	test: function(testName, expected, callback, async) {
  73		var name = testName, testEnvironment, testEnvironmentArg;
  74
  75		if ( arguments.length === 2 ) {
  76			callback = expected;
  77			expected = null;
  78		}
  79		// is 2nd argument a testEnvironment?
  80		if ( expected && typeof expected === 'object') {
  81			testEnvironmentArg =  expected;
  82			expected = null;
  83		}
  84
  85		if ( config.currentModule ) {
  86			name = config.currentModule + " module: " + name;
  87		}
  88
  89		if ( !validTest(name) ) {
  90			return;
  91		}
  92
  93		synchronize(function() {
  94			QUnit.testStart( testName );
  95
  96			testEnvironment = extend({
  97				setup: function() {},
  98				teardown: function() {}
  99			}, config.moduleTestEnvironment);
 100			if (testEnvironmentArg) {
 101				extend(testEnvironment,testEnvironmentArg);
 102			}
 103
 104			// allow utility functions to access the current test environment
 105			QUnit.current_testEnvironment = testEnvironment;
 106			
 107			config.assertions = [];
 108			config.expected = expected;
 109
 110			try {
 111				if ( !config.pollution ) {
 112					saveGlobal();
 113				}
 114
 115				testEnvironment.setup.call(testEnvironment);
 116			} catch(e) {
 117				QUnit.ok( false, "Setup failed on " + name + ": " + e.message );
 118			}
 119
 120			if ( async ) {
 121				QUnit.stop();
 122			}
 123
 124			try {
 125				callback.call(testEnvironment);
 126			} catch(e) {
 127				fail("Test " + name + " died, exception and test follows", e, callback);
 128				QUnit.ok( false, "Died on test #" + (config.assertions.length + 1) + ": " + e.message );
 129				// else next test will carry the responsibility
 130				saveGlobal();
 131
 132				// Restart the tests if they're blocking
 133				if ( config.blocking ) {
 134					start();
 135				}
 136			}
 137		});
 138
 139		synchronize(function() {
 140			try {
 141				checkPollution();
 142				testEnvironment.teardown.call(testEnvironment);
 143			} catch(e) {
 144				QUnit.ok( false, "Teardown failed on " + name + ": " + e.message );
 145			}
 146
 147			try {
 148				QUnit.reset();
 149			} catch(e) {
 150				fail("reset() failed, following Test " + name + ", exception and reset fn follows", e, reset);
 151			}
 152
 153			if ( config.expected && config.expected != config.assertions.length ) {
 154				QUnit.ok( false, "Expected " + config.expected + " assertions, but " + config.assertions.length + " were run" );
 155			}
 156
 157			var good = 0, bad = 0,
 158				tests = id("qunit-tests");
 159
 160			config.stats.all += config.assertions.length;
 161			config.moduleStats.all += config.assertions.length;
 162
 163			if ( tests ) {
 164				var ol  = document.createElement("ol");
 165				ol.style.display = "none";
 166
 167				for ( var i = 0; i < config.assertions.length; i++ ) {
 168					var assertion = config.assertions[i];
 169
 170					var li = document.createElement("li");
 171					li.className = assertion.result ? "pass" : "fail";
 172					li.appendChild(document.createTextNode(assertion.message || "(no message)"));
 173					ol.appendChild( li );
 174
 175					if ( assertion.result ) {
 176						good++;
 177					} else {
 178						bad++;
 179						config.stats.bad++;
 180						config.moduleStats.bad++;
 181					}
 182				}
 183
 184				var b = document.createElement("strong");
 185				b.innerHTML = name + " <b style='color:black;'>(<b class='fail'>" + bad + "</b>, <b class='pass'>" + good + "</b>, " + config.assertions.length + ")</b>";
 186				
 187				addEvent(b, "click", function() {
 188					var next = b.nextSibling, display = next.style.display;
 189					next.style.display = display === "none" ? "block" : "none";
 190				});
 191				
 192				addEvent(b, "dblclick", function(e) {
 193					var target = e && e.target ? e.target : window.event.srcElement;
 194					if ( target.nodeName.toLowerCase() === "strong" ) {
 195						var text = "", node = target.firstChild;
 196
 197						while ( node.nodeType === 3 ) {
 198							text += node.nodeValue;
 199							node = node.nextSibling;
 200						}
 201
 202						text = text.replace(/(^\s*|\s*$)/g, "");
 203
 204						if ( window.location ) {
 205							window.location.href = window.location.href.match(/^(.+?)(\?.*)?$/)[1] + "?" + encodeURIComponent(text);
 206						}
 207					}
 208				});
 209
 210				var li = document.createElement("li");
 211				li.className = bad ? "fail" : "pass";
 212				li.appendChild( b );
 213				li.appendChild( ol );
 214				tests.appendChild( li );
 215
 216				if ( bad ) {
 217					var toolbar = id("qunit-testrunner-toolbar");
 218					if ( toolbar ) {
 219						toolbar.style.display = "block";
 220						id("qunit-filter-pass").disabled = null;
 221						id("qunit-filter-missing").disabled = null;
 222					}
 223				}
 224
 225			} else {
 226				for ( var i = 0; i < config.assertions.length; i++ ) {
 227					if ( !config.assertions[i].result ) {
 228						bad++;
 229						config.stats.bad++;
 230						config.moduleStats.bad++;
 231					}
 232				}
 233			}
 234
 235			QUnit.testDone( testName, bad, config.assertions.length );
 236
 237			if ( !window.setTimeout && !config.queue.length ) {
 238				done();
 239			}
 240		});
 241
 242		if ( window.setTimeout && !config.doneTimer ) {
 243			config.doneTimer = window.setTimeout(function(){
 244				if ( !config.queue.length ) {
 245					done();
 246				} else {
 247					synchronize( done );
 248				}
 249			}, 13);
 250		}
 251	},
 252	
 253	/**
 254	 * Specify the number of expected assertions to gurantee that failed test (no assertions are run at all) don't slip through.
 255	 */
 256	expect: function(asserts) {
 257		config.expected = asserts;
 258	},
 259
 260	/**
 261	 * Asserts true.
 262	 * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
 263	 */
 264	ok: function(a, msg) {
 265		QUnit.log(a, msg);
 266
 267		config.assertions.push({
 268			result: !!a,
 269			message: msg
 270		});
 271	},
 272
 273	/**
 274	 * Checks that the first two arguments are equal, with an optional message.
 275	 * Prints out both actual and expected values.
 276	 *
 277	 * Prefered to ok( actual == expected, message )
 278	 *
 279	 * @example equal( format("Received {0} bytes.", 2), "Received 2 bytes." );
 280	 *
 281	 * @param Object actual
 282	 * @param Object expected
 283	 * @param String message (optional)
 284	 */
 285	equal: function(actual, expected, message) {
 286		push(expected == actual, actual, expected, message);
 287	},
 288
 289	notEqual: function(actual, expected, message) {
 290		push(expected != actual, actual, expected, message);
 291	},
 292	
 293	deepEqual: function(a, b, message) {
 294		push(QUnit.equiv(a, b), a, b, message);
 295	},
 296
 297	notDeepEqual: function(a, b, message) {
 298		push(!QUnit.equiv(a, b), a, b, message);
 299	},
 300
 301	strictEqual: function(actual, expected, message) {
 302		push(expected === actual, actual, expected, message);
 303	},
 304
 305	notStrictEqual: function(actual, expected, message) {
 306		push(expected !== actual, actual, expected, message);
 307	},
 308	
 309	start: function() {
 310		// A slight delay, to avoid any current callbacks
 311		if ( window.setTimeout ) {
 312			window.setTimeout(function() {
 313				if ( config.timeout ) {
 314					clearTimeout(config.timeout);
 315				}
 316
 317				config.blocking = false;
 318				process();
 319			}, 13);
 320		} else {
 321			config.blocking = false;
 322			process();
 323		}
 324	},
 325	
 326	stop: function(timeout) {
 327		config.blocking = true;
 328
 329		if ( timeout && window.setTimeout ) {
 330			config.timeout = window.setTimeout(function() {
 331				QUnit.ok( false, "Test timed out" );
 332				QUnit.start();
 333			}, timeout);
 334		}
 335	},
 336	
 337	/**
 338	 * Resets the test setup. Useful for tests that modify the DOM.
 339	 */
 340	reset: function() {
 341		if ( window.jQuery ) {
 342			jQuery("#main").html( config.fixture );
 343			jQuery.event.global = {};
 344			jQuery.ajaxSettings = extend({}, config.ajaxSettings);
 345		}
 346	},
 347	
 348	/**
 349	 * Trigger an event on an element.
 350	 *
 351	 * @example triggerEvent( document.body, "click" );
 352	 *
 353	 * @param DOMElement elem
 354	 * @param String type
 355	 */
 356	triggerEvent: function( elem, type, event ) {
 357		if ( document.createEvent ) {
 358			event = document.createEvent("MouseEvents");
 359			event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
 360				0, 0, 0, 0, 0, false, false, false, false, 0, null);
 361			elem.dispatchEvent( event );
 362
 363		} else if ( elem.fireEvent ) {
 364			elem.fireEvent("on"+type);
 365		}
 366	},
 367	
 368	// Safe object type checking
 369	is: function( type, obj ) {
 370		return Object.prototype.toString.call( obj ) === "[object "+ type +"]";
 371	},
 372	
 373	// Logging callbacks
 374	done: function(failures, total) {},
 375	log: function(result, message) {},
 376	testStart: function(name) {},
 377	testDone: function(name, failures, total) {},
 378	moduleStart: function(name, testEnvironment) {},
 379	moduleDone: function(name, failures, total) {}
 380};
 381
 382// Backwards compatibility, deprecated
 383QUnit.equals = QUnit.equal;
 384QUnit.same = QUnit.deepEqual;
 385
 386// Maintain internal state
 387var config = {
 388	// The queue of tests to run
 389	queue: [],
 390
 391	// block until document ready
 392	blocking: true
 393};
 394
 395// Load paramaters
 396(function() {
 397	var location = window.location || { search: "", protocol: "file:" },
 398		GETParams = location.search.slice(1).split('&');
 399
 400	for ( var i = 0; i < GETParams.length; i++ ) {
 401		GETParams[i] = decodeURIComponent( GETParams[i] );
 402		if ( GETParams[i] === "noglobals" ) {
 403			GETParams.splice( i, 1 );
 404			i--;
 405			config.noglobals = true;
 406		} else if ( GETParams[i].search('=') > -1 ) {
 407			GETParams.splice( i, 1 );
 408			i--;
 409		}
 410	}
 411	
 412	// restrict modules/tests by get parameters
 413	config.filters = GETParams;
 414	
 415	// Figure out if we're running the tests from a server or not
 416	QUnit.isLocal = !!(location.protocol === 'file:');
 417})();
 418
 419// Expose the API as global variables, unless an 'exports'
 420// object exists, in that case we assume we're in CommonJS
 421if ( typeof exports === "undefined" || typeof require === "undefined" ) {
 422	extend(window, QUnit);
 423	window.QUnit = QUnit;
 424} else {
 425	extend(exports, QUnit);
 426	exports.QUnit = QUnit;
 427}
 428
 429if ( typeof document === "undefined" || document.readyState === "complete" ) {
 430	config.autorun = true;
 431}
 432
 433addEvent(window, "load", function() {
 434	// Initialize the config, saving the execution queue
 435	var oldconfig = extend({}, config);
 436	QUnit.init();
 437	extend(config, oldconfig);
 438
 439	config.blocking = false;
 440
 441	var userAgent = id("qunit-userAgent");
 442	if ( userAgent ) {
 443		userAgent.innerHTML = navigator.userAgent;
 444	}
 445	
 446	var toolbar = id("qunit-testrunner-toolbar");
 447	if ( toolbar ) {
 448		toolbar.style.display = "none";
 449		
 450		var filter = document.createElement("input");
 451		filter.type = "checkbox";
 452		filter.id = "qunit-filter-pass";
 453		filter.disabled = true;
 454		addEvent( filter, "click", function() {
 455			var li = document.getElementsByTagName("li");
 456			for ( var i = 0; i < li.length; i++ ) {
 457				if ( li[i].className.indexOf("pass") > -1 ) {
 458					li[i].style.display = filter.checked ? "none" : "";
 459				}
 460			}
 461		});
 462		toolbar.appendChild( filter );
 463
 464		var label = document.createElement("label");
 465		label.setAttribute("for", "qunit-filter-pass");
 466		label.innerHTML = "Hide passed tests";
 467		toolbar.appendChild( label );
 468
 469		var missing = document.createElement("input");
 470		missing.type = "checkbox";
 471		missing.id = "qunit-filter-missing";
 472		missing.disabled = true;
 473		addEvent( missing, "click", function() {
 474			var li = document.getElementsByTagName("li");
 475			for ( var i = 0; i < li.length; i++ ) {
 476				if ( li[i].className.indexOf("fail") > -1 && li[i].innerHTML.indexOf('missing test - untested code is broken code') > - 1 ) {
 477					li[i].parentNode.parentNode.style.display = missing.checked ? "none" : "block";
 478				}
 479			}
 480		});
 481		toolbar.appendChild( missing );
 482
 483		label = document.createElement("label");
 484		label.setAttribute("for", "qunit-filter-missing");
 485		label.innerHTML = "Hide missing tests (untested code is broken code)";
 486		toolbar.appendChild( label );
 487	}
 488
 489	var main = id('main');
 490	if ( main ) {
 491		config.fixture = main.innerHTML;
 492	}
 493
 494	if ( window.jQuery ) {
 495		config.ajaxSettings = window.jQuery.ajaxSettings;
 496	}
 497
 498	QUnit.start();
 499});
 500
 501function done() {
 502	if ( config.doneTimer && window.clearTimeout ) {
 503		window.clearTimeout( config.doneTimer );
 504		config.doneTimer = null;
 505	}
 506
 507	if ( config.queue.length ) {
 508		config.doneTimer = window.setTimeout(function(){
 509			if ( !config.queue.length ) {
 510				done();
 511			} else {
 512				synchronize( done );
 513			}
 514		}, 13);
 515
 516		return;
 517	}
 518
 519	config.autorun = true;
 520
 521	// Log the last module results
 522	if ( config.currentModule ) {
 523		QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
 524	}
 525
 526	var banner = id("qunit-banner"),
 527		tests = id("qunit-tests"),
 528		html = ['Tests completed in ',
 529		+new Date - config.started, ' milliseconds.<br/>',
 530		'<span class="passed">', config.stats.all - config.stats.bad, '</span> tests of <span class="total">', config.stats.all, '</span> passed, <span class="failed">', config.stats.bad,'</span> failed.'].join('');
 531
 532	if ( banner ) {
 533		banner.className = (config.stats.bad ? "qunit-fail" : "qunit-pass");
 534	}
 535
 536	if ( tests ) {	
 537		var result = id("qunit-testresult");
 538
 539		if ( !result ) {
 540			result = document.createElement("p");
 541			result.id = "qunit-testresult";
 542			result.className = "result";
 543			tests.parentNode.insertBefore( result, tests.nextSibling );
 544		}
 545
 546		result.innerHTML = html;
 547	}
 548
 549	QUnit.done( config.stats.bad, config.stats.all );
 550}
 551
 552function validTest( name ) {
 553	var i = config.filters.length,
 554		run = false;
 555
 556	if ( !i ) {
 557		return true;
 558	}
 559	
 560	while ( i-- ) {
 561		var filter = config.filters[i],
 562			not = filter.charAt(0) == '!';
 563
 564		if ( not ) {
 565			filter = filter.slice(1);
 566		}
 567
 568		if ( name.indexOf(filter) !== -1 ) {
 569			return !not;
 570		}
 571
 572		if ( not ) {
 573			run = true;
 574		}
 575	}
 576
 577	return run;
 578}
 579
 580function push(result, actual, expected, message) {
 581	message = message || (result ? "okay" : "failed");
 582	QUnit.ok( result, result ? message + ": " + QUnit.jsDump.parse(expected) : message + ", expected: " + QUnit.jsDump.parse(expected) + " result: " + QUnit.jsDump.parse(actual) );
 583}
 584
 585function synchronize( callback ) {
 586	config.queue.push( callback );
 587
 588	if ( config.autorun && !config.blocking ) {
 589		process();
 590	}
 591}
 592
 593function process() {
 594	var start = (new Date()).getTime();
 595
 596	while ( config.queue.length && !config.blocking ) {
 597		if ( config.updateRate <= 0 || (((new Date()).getTime() - start) < config.updateRate) ) {
 598			config.queue.shift()();
 599
 600		} else {
 601			setTimeout( process, 13 );
 602			break;
 603		}
 604	}
 605}
 606
 607function saveGlobal() {
 608	config.pollution = [];
 609	
 610	if ( config.noglobals ) {
 611		for ( var key in window ) {
 612			config.pollution.push( key );
 613		}
 614	}
 615}
 616
 617function checkPollution( name ) {
 618	var old = config.pollution;
 619	saveGlobal();
 620	
 621	var newGlobals = diff( old, config.pollution );
 622	if ( newGlobals.length > 0 ) {
 623		ok( false, "Introduced global variable(s): " + newGlobals.join(", ") );
 624		config.expected++;
 625	}
 626
 627	var deletedGlobals = diff( config.pollution, old );
 628	if ( deletedGlobals.length > 0 ) {
 629		ok( false, "Deleted global variable(s): " + deletedGlobals.join(", ") );
 630		config.expected++;
 631	}
 632}
 633
 634// returns a new Array with the elements that are in a but not in b
 635function diff( a, b ) {
 636	var result = a.slice();
 637	for ( var i = 0; i < result.length; i++ ) {
 638		for ( var j = 0; j < b.length; j++ ) {
 639			if ( result[i] === b[j] ) {
 640				result.splice(i, 1);
 641				i--;
 642				break;
 643			}
 644		}
 645	}
 646	return result;
 647}
 648
 649function fail(message, exception, callback) {
 650	if ( typeof console !== "undefined" && console.error && console.warn ) {
 651		console.error(message);
 652		console.error(exception);
 653		console.warn(callback.toString());
 654
 655	} else if ( window.opera && opera.postError ) {
 656		opera.postError(message, exception, callback.toString);
 657	}
 658}
 659
 660function extend(a, b) {
 661	for ( var prop in b ) {
 662		a[prop] = b[prop];
 663	}
 664
 665	return a;
 666}
 667
 668function addEvent(elem, type, fn) {
 669	if ( elem.addEventListener ) {
 670		elem.addEventListener( type, fn, false );
 671	} else if ( elem.attachEvent ) {
 672		elem.attachEvent( "on" + type, fn );
 673	} else {
 674		fn();
 675	}
 676}
 677
 678function id(name) {
 679	return !!(typeof document !== "undefined" && document && document.getElementById) &&
 680		document.getElementById( name );
 681}
 682
 683// Test for equality any JavaScript type.
 684// Discussions and reference: http://philrathe.com/articles/equiv
 685// Test suites: http://philrathe.com/tests/equiv
 686// Author: Philippe RathĂŠ <prathe@gmail.com>
 687QUnit.equiv = function () {
 688
 689    var innerEquiv; // the real equiv function
 690    var callers = []; // stack to decide between skip/abort functions
 691    var parents = []; // stack to avoiding loops from circular referencing
 692
 693
 694    // Determine what is o.
 695    function hoozit(o) {
 696        if (QUnit.is("String", o)) {
 697            return "string";
 698            
 699        } else if (QUnit.is("Boolean", o)) {
 700            return "boolean";
 701
 702        } else if (QUnit.is("Number", o)) {
 703
 704            if (isNaN(o)) {
 705                return "nan";
 706            } else {
 707                return "number";
 708            }
 709
 710        } else if (typeof o === "undefined") {
 711            return "undefined";
 712
 713        // consider: typeof null === object
 714        } else if (o === null) {
 715            return "null";
 716
 717        // consider: typeof [] === object
 718        } else if (QUnit.is( "Array", o)) {
 719            return "array";
 720        
 721        // consider: typeof new Date() === object
 722        } else if (QUnit.is( "Date", o)) {
 723            return "date";
 724
 725        // consider: /./ instanceof Object;
 726        //           /./ instanceof RegExp;
 727        //          typeof /./ === "function"; // => false in IE and Opera,
 728        //                                          true in FF and Safari
 729        } else if (QUnit.is( "RegExp", o)) {
 730            return "regexp";
 731
 732        } else if (typeof o === "object") {
 733            return "object";
 734
 735        } else if (QUnit.is( "Function", o)) {
 736            return "function";
 737        } else {
 738            return undefined;
 739        }
 740    }
 741
 742    // Call the o related callback with the given arguments.
 743    function bindCallbacks(o, callbacks, args) {
 744        var prop = hoozit(o);
 745        if (prop) {
 746            if (hoozit(callbacks[prop]) === "function") {
 747                return callbacks[prop].apply(callbacks, args);
 748            } else {
 749                return callbacks[prop]; // or undefined
 750            }
 751        }
 752    }
 753    
 754    var callbacks = function () {
 755
 756        // for string, boolean, number and null
 757        function useStrictEquality(b, a) {
 758            if (b instanceof a.constructor || a instanceof b.constructor) {
 759                // to catch short annotaion VS 'new' annotation of a declaration
 760                // e.g. var i = 1;
 761                //      var j = new Number(1);
 762                return a == b;
 763            } else {
 764                return a === b;
 765            }
 766        }
 767
 768        return {
 769            "string": useStrictEquality,
 770            "boolean": useStrictEquality,
 771            "number": useStrictEquality,
 772            "null": useStrictEquality,
 773            "undefined": useStrictEquality,
 774
 775            "nan": function (b) {
 776                return isNaN(b);
 777            },
 778
 779            "date": function (b, a) {
 780                return hoozit(b) === "date" && a.valueOf() === b.valueOf();
 781            },
 782
 783            "regexp": function (b, a) {
 784                return hoozit(b) === "regexp" &&
 785                    a.source === b.source && // the regex itself
 786                    a.global === b.global && // and its modifers (gmi) ...
 787                    a.ignoreCase === b.ignoreCase &&
 788                    a.multiline === b.multiline;
 789            },
 790
 791            // - skip when the property is a method of an instance (OOP)
 792            // - abort otherwise,
 793            //   initial === would have catch identical references anyway
 794            "function": function () {
 795                var caller = callers[callers.length - 1];
 796                return caller !== Object &&
 797                        typeof caller !== "undefined";
 798            },
 799
 800            "array": function (b, a) {
 801                var i, j, loop;
 802                var len;
 803
 804                // b could be an object literal here
 805                if ( ! (hoozit(b) === "array")) {
 806                    return false;
 807                }   
 808                
 809                len = a.length;
 810                if (len !== b.length) { // safe and faster
 811                    return false;
 812                }
 813                
 814                //track reference to avoid circular references
 815                parents.push(a);
 816                for (i = 0; i < len; i++) {
 817                    loop = false;
 818                    for(j=0;j<parents.length;j++){
 819                        if(parents[j] === a[i]){
 820                            loop = true;//dont rewalk array
 821                        }
 822                    }
 823                    if (!loop && ! innerEquiv(a[i], b[i])) {
 824                        parents.pop();
 825                        return false;
 826                    }
 827                }
 828                parents.pop();
 829                return true;
 830            },
 831
 832            "object": function (b, a) {
 833                var i, j, loop;
 834                var eq = true; // unless we can proove it
 835                var aProperties = [], bProperties = []; // collection of strings
 836
 837                // comparing constructors is more strict than using instanceof
 838                if ( a.constructor !== b.constructor) {
 839                    return false;
 840                }
 841
 842                // stack constructor before traversing properties
 843                callers.push(a.constructor);
 844                //track reference to avoid circular references
 845                parents.push(a);
 846                
 847                for (i in a) { // be strict: don't ensures hasOwnProperty and go deep
 848                    loop = false;
 849                    for(j=0;j<parents.length;j++){
 850                        if(parents[j] === a[i])
 851                            loop = true; //don't go down the same path twice
 852                    }
 853                    aProperties.push(i); // collect a's properties
 854
 855                    if (!loop && ! innerEquiv(a[i], b[i])) {
 856                        eq = false;
 857                        break;
 858                    }
 859                }
 860
 861                callers.pop(); // unstack, we are done
 862                parents.pop();
 863
 864                for (i in b) {
 865                    bProperties.push(i); // collect b's properties
 866                }
 867
 868                // Ensures identical properties name
 869                return eq && innerEquiv(aProperties.sort(), bProperties.sort());
 870            }
 871        };
 872    }();
 873
 874    innerEquiv = function () { // can take multiple arguments
 875        var args = Array.prototype.slice.apply(arguments);
 876        if (args.length < 2) {
 877            return true; // end transition
 878        }
 879
 880        return (function (a, b) {
 881            if (a === b) {
 882                return true; // catch the most you can
 883            } else if (a === null || b === null || typeof a === "undefined" || typeof b === "undefined" || hoozit(a) !== hoozit(b)) {
 884                return false; // don't lose time with error prone cases
 885            } else {
 886                return bindCallbacks(a, callbacks, [b, a]);
 887            }
 888
 889        // apply transition with (1..n) arguments
 890        })(args[0], args[1]) && arguments.callee.apply(this, args.splice(1, args.length -1));
 891    };
 892
 893    return innerEquiv;
 894
 895}();
 896
 897/**
 898 * jsDump
 899 * Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
 900 * Licensed under BSD (http://www.opensource.org/licenses/bsd-license.php)
 901 * Date: 5/15/2008
 902 * @projectDescription Advanced and extensible data dumping for Javascript.
 903 * @version 1.0.0
 904 * @author Ariel Flesler
 905 * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
 906 */
 907QUnit.jsDump = (function() {
 908	function quote( str ) {
 909		return '"' + str.toString().replace(/"/g, '\\"') + '"';
 910	};
 911	function literal( o ) {
 912		return o + '';	
 913	};
 914	function join( pre, arr, post ) {
 915		var s = jsDump.separator(),
 916			base = jsDump.indent(),
 917			inner = jsDump.indent(1);
 918		if ( arr.join )
 919			arr = arr.join( ',' + s + inner );
 920		if ( !arr )
 921			return pre + post;
 922		return [ pre, inner + arr, base + post ].join(s);
 923	};
 924	function array( arr ) {
 925		var i = arr.length,	ret = Array(i);					
 926		this.up();
 927		while ( i-- )
 928			ret[i] = this.parse( arr[i] );				
 929		this.down();
 930		return join( '[', ret, ']' );
 931	};
 932	
 933	var reName = /^function (\w+)/;
 934	
 935	var jsDump = {
 936		parse:function( obj, type ) { //type is used mostly internally, you can fix a (custom)type in advance
 937			var	parser = this.parsers[ type || this.typeOf(obj) ];
 938			type = typeof parser;			
 939			
 940			return type == 'function' ? parser.call( this, obj ) :
 941				   type == 'string' ? parser :
 942				   this.parsers.error;
 943		},
 944		typeOf:function( obj ) {
 945			var type;
 946			if ( obj === null ) {
 947				type = "null";
 948			} else if (typeof obj === "undefined") {
 949				type = "undefined";
 950			} else if (QUnit.is("RegExp", obj)) {
 951				type = "regexp";
 952			} else if (QUnit.is("Date", obj)) {
 953				type = "date";
 954			} else if (QUnit.is("Function", obj)) {
 955				type = "function";
 956			} else if (obj.setInterval && obj.document && !obj.nodeType) {
 957				type = "window";
 958			} else if (obj.nodeType === 9) {
 959				type = "document";
 960			} else if (obj.nodeType) {
 961				type = "node";
 962			} else if (typeof obj === "object" && typeof obj.length === "number" && obj.length >= 0) {
 963				type = "array";
 964			} else {
 965				type = typeof obj;
 966			}
 967			return type;
 968		},
 969		separator:function() {
 970			return this.multiline ?	this.HTML ? '<br />' : '\n' : this.HTML ? '&nbsp;' : ' ';
 971		},
 972		indent:function( extra ) {// extra can be a number, shortcut for increasing-calling-decreasing
 973			if ( !this.multiline )
 974				return '';
 975			var chr = this.indentChar;
 976			if ( this.HTML )
 977				chr = chr.replace(/\t/g,'   ').replace(/ /g,'&nbsp;');
 978			return Array( this._depth_ + (extra||0) ).join(chr);
 979		},
 980		up:function( a ) {
 981			this._depth_ += a || 1;
 982		},
 983		down:function( a ) {
 984			this._depth_ -= a || 1;
 985		},
 986		setParser:function( name, parser ) {
 987			this.parsers[name] = parser;
 988		},
 989		// The next 3 are exposed so you can use them
 990		quote:quote, 
 991		literal:literal,
 992		join:join,
 993		//
 994		_depth_: 1,
 995		// This is the list of parsers, to modify them, use jsDump.setParser
 996		parsers:{
 997			window: '[Window]',
 998			document: '[Document]',
 999			error:'[ERROR]', //when no parser is found, shouldn't happen
1000			unknown: '[Unknown]',
1001			'null':'null',
1002			undefined:'undefined',
1003			'function':function( fn ) {
1004				var ret = 'function',
1005					name = 'name' in fn ? fn.name : (reName.exec(fn)||[])[1];//functions never have name in IE
1006				if ( name )
1007					ret += ' ' + name;
1008				ret += '(';
1009				
1010				ret = [ ret, this.parse( fn, 'functionArgs' ), '){'].join('');
1011				return join( ret, this.parse(fn,'functionCode'), '}' );
1012			},
1013			array: array,
1014			nodelist: array,
1015			arguments: array,
1016			object:function( map ) {
1017				var ret = [ ];
1018				this.up();
1019				for ( var key in map )
1020					ret.push( this.parse(key,'key') + ': ' + this.parse(map[key]) );
1021				this.down();
1022				return join( '{', ret, '}' );
1023			},
1024			node:function( node ) {
1025				var open = this.HTML ? '&lt;' : '<',
1026					close = this.HTML ? '&gt;' : '>';
1027					
1028				var tag = node.nodeName.toLowerCase(),
1029					ret = open + tag;
1030					
1031				for ( var a in this.DOMAttrs ) {
1032					var val = node[this.DOMAttrs[a]];
1033					if ( val )
1034						ret += ' ' + a + '=' + this.parse( val, 'attribute' );
1035				}
1036				return ret + close + open + '/' + tag + close;
1037			},
1038			functionArgs:function( fn ) {//function calls it internally, it's the arguments part of the function
1039				var l = fn.length;
1040				if ( !l ) return '';				
1041				
1042				var args = Array(l);
1043				while ( l-- )
1044					args[l] = String.fromCharCode(97+l);//97 is 'a'
1045				return ' ' + args.join(', ') + ' ';
1046			},
1047			key:quote, //object calls it internally, the key part of an item in a map
1048			functionCode:'[code]', //function calls it internally, it's the content of the function
1049			attribute:quote, //node calls it internally, it's an html attribute value
1050			string:quote,
1051			date:quote,
1052			regexp:literal, //regex
1053			number:literal,
1054			'boolean':literal
1055		},
1056		DOMAttrs:{//attributes to dump from nodes, name=>realName
1057			id:'id',
1058			name:'name',
1059			'class':'className'
1060		},
1061		HTML:false,//if true, entities are escaped ( <, >, \t, space and \n )
1062		indentChar:'   ',//indentation unit
1063		multiline:false //if true, items in a collection, are separated by a \n, else just a space.
1064	};
1065
1066	return jsDump;
1067})();
1068
1069})(this);