PageRenderTime 1010ms CodeModel.GetById 81ms app.highlight 791ms RepoModel.GetById 58ms app.codeStats 2ms

/tests/unit-tests/qunit/qunit.js

http://enhancejs.googlecode.com/
JavaScript | 1042 lines | 788 code | 159 blank | 95 comment | 158 complexity | a930309f6d81e8dc9bc606857f1a4973 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			blocking: false,
  22			autorun: false,
  23			assertions: [],
  24			filters: [],
  25			queue: []
  26		};
  27
  28		var tests = id("qunit-tests"),
  29			banner = id("qunit-banner"),
  30			result = id("qunit-testresult");
  31
  32		if ( tests ) {
  33			tests.innerHTML = "";
  34		}
  35
  36		if ( banner ) {
  37			banner.className = "";
  38		}
  39
  40		if ( result ) {
  41			result.parentNode.removeChild( result );
  42		}
  43	},
  44	
  45	// call on start of module test to prepend name to all tests
  46	module: function(name, testEnvironment) {
  47		config.currentModule = name;
  48
  49		synchronize(function() {
  50			if ( config.currentModule ) {
  51				QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
  52			}
  53
  54			config.currentModule = name;
  55			config.moduleTestEnvironment = testEnvironment;
  56			config.moduleStats = { all: 0, bad: 0 };
  57
  58			QUnit.moduleStart( name, testEnvironment );
  59		});
  60	},
  61
  62	asyncTest: function(testName, expected, callback) {
  63		if ( arguments.length === 2 ) {
  64			callback = expected;
  65			expected = 0;
  66		}
  67
  68		QUnit.test(testName, expected, callback, true);
  69	},
  70	
  71	test: function(testName, expected, callback, async) {
  72		var name = testName, testEnvironment, testEnvironmentArg;
  73
  74		if ( arguments.length === 2 ) {
  75			callback = expected;
  76			expected = null;
  77		}
  78		// is 2nd argument a testEnvironment?
  79		if ( expected && typeof expected === 'object') {
  80			testEnvironmentArg =  expected;
  81			expected = null;
  82		}
  83
  84		if ( config.currentModule ) {
  85			name = config.currentModule + " module: " + name;
  86		}
  87
  88		if ( !validTest(name) ) {
  89			return;
  90		}
  91
  92		synchronize(function() {
  93			QUnit.testStart( testName );
  94
  95			testEnvironment = extend({
  96				setup: function() {},
  97				teardown: function() {}
  98			}, config.moduleTestEnvironment);
  99			if (testEnvironmentArg) {
 100				extend(testEnvironment,testEnvironmentArg);
 101			}
 102
 103			// allow utility functions to access the current test environment
 104			QUnit.current_testEnvironment = testEnvironment;
 105			
 106			config.assertions = [];
 107			config.expected = expected;
 108
 109			try {
 110				if ( !config.pollution ) {
 111					saveGlobal();
 112				}
 113
 114				testEnvironment.setup.call(testEnvironment);
 115			} catch(e) {
 116				QUnit.ok( false, "Setup failed on " + name + ": " + e.message );
 117			}
 118
 119			if ( async ) {
 120				QUnit.stop();
 121			}
 122
 123			try {
 124				callback.call(testEnvironment);
 125			} catch(e) {
 126				fail("Test " + name + " died, exception and test follows", e, callback);
 127				QUnit.ok( false, "Died on test #" + (config.assertions.length + 1) + ": " + e.message );
 128				// else next test will carry the responsibility
 129				saveGlobal();
 130
 131				// Restart the tests if they're blocking
 132				if ( config.blocking ) {
 133					start();
 134				}
 135			}
 136		});
 137
 138		synchronize(function() {
 139			try {
 140				checkPollution();
 141				testEnvironment.teardown.call(testEnvironment);
 142			} catch(e) {
 143				QUnit.ok( false, "Teardown failed on " + name + ": " + e.message );
 144			}
 145
 146			try {
 147				QUnit.reset();
 148			} catch(e) {
 149				fail("reset() failed, following Test " + name + ", exception and reset fn follows", e, reset);
 150			}
 151
 152			if ( config.expected && config.expected != config.assertions.length ) {
 153				QUnit.ok( false, "Expected " + config.expected + " assertions, but " + config.assertions.length + " were run" );
 154			}
 155
 156			var good = 0, bad = 0,
 157				tests = id("qunit-tests");
 158
 159			config.stats.all += config.assertions.length;
 160			config.moduleStats.all += config.assertions.length;
 161
 162			if ( tests ) {
 163				var ol  = document.createElement("ol");
 164				ol.style.display = "none";
 165
 166				for ( var i = 0; i < config.assertions.length; i++ ) {
 167					var assertion = config.assertions[i];
 168
 169					var li = document.createElement("li");
 170					li.className = assertion.result ? "pass" : "fail";
 171					li.appendChild(document.createTextNode(assertion.message || "(no message)"));
 172					ol.appendChild( li );
 173
 174					if ( assertion.result ) {
 175						good++;
 176					} else {
 177						bad++;
 178						config.stats.bad++;
 179						config.moduleStats.bad++;
 180					}
 181				}
 182
 183				var b = document.createElement("strong");
 184				b.innerHTML = name + " <b style='color:black;'>(<b class='fail'>" + bad + "</b>, <b class='pass'>" + good + "</b>, " + config.assertions.length + ")</b>";
 185				
 186				addEvent(b, "click", function() {
 187					var next = b.nextSibling, display = next.style.display;
 188					next.style.display = display === "none" ? "block" : "none";
 189				});
 190				
 191				addEvent(b, "dblclick", function(e) {
 192					var target = e && e.target ? e.target : window.event.srcElement;
 193					if ( target.nodeName.toLowerCase() === "strong" ) {
 194						var text = "", node = target.firstChild;
 195
 196						while ( node.nodeType === 3 ) {
 197							text += node.nodeValue;
 198							node = node.nextSibling;
 199						}
 200
 201						text = text.replace(/(^\s*|\s*$)/g, "");
 202
 203						if ( window.location ) {
 204							window.location.href = window.location.href.match(/^(.+?)(\?.*)?$/)[1] + "?" + encodeURIComponent(text);
 205						}
 206					}
 207				});
 208
 209				var li = document.createElement("li");
 210				li.className = bad ? "fail" : "pass";
 211				li.appendChild( b );
 212				li.appendChild( ol );
 213				tests.appendChild( li );
 214
 215				if ( bad ) {
 216					var toolbar = id("qunit-testrunner-toolbar");
 217					if ( toolbar ) {
 218						toolbar.style.display = "block";
 219						id("qunit-filter-pass").disabled = null;
 220						id("qunit-filter-missing").disabled = null;
 221					}
 222				}
 223
 224			} else {
 225				for ( var i = 0; i < config.assertions.length; i++ ) {
 226					if ( !config.assertions[i].result ) {
 227						bad++;
 228						config.stats.bad++;
 229						config.moduleStats.bad++;
 230					}
 231				}
 232			}
 233
 234			QUnit.testDone( testName, bad, config.assertions.length );
 235
 236			if ( !window.setTimeout && !config.queue.length ) {
 237				done();
 238			}
 239		});
 240
 241		if ( window.setTimeout && !config.doneTimer ) {
 242			config.doneTimer = window.setTimeout(function(){
 243				if ( !config.queue.length ) {
 244					done();
 245				} else {
 246					synchronize( done );
 247				}
 248			}, 13);
 249		}
 250	},
 251	
 252	/**
 253	 * Specify the number of expected assertions to gurantee that failed test (no assertions are run at all) don't slip through.
 254	 */
 255	expect: function(asserts) {
 256		config.expected = asserts;
 257	},
 258
 259	/**
 260	 * Asserts true.
 261	 * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
 262	 */
 263	ok: function(a, msg) {
 264		QUnit.log(a, msg);
 265
 266		config.assertions.push({
 267			result: !!a,
 268			message: msg
 269		});
 270	},
 271
 272	/**
 273	 * Checks that the first two arguments are equal, with an optional message.
 274	 * Prints out both actual and expected values.
 275	 *
 276	 * Prefered to ok( actual == expected, message )
 277	 *
 278	 * @example equal( format("Received {0} bytes.", 2), "Received 2 bytes." );
 279	 *
 280	 * @param Object actual
 281	 * @param Object expected
 282	 * @param String message (optional)
 283	 */
 284	equal: function(actual, expected, message) {
 285		push(expected == actual, actual, expected, message);
 286	},
 287
 288	notEqual: function(actual, expected, message) {
 289		push(expected != actual, actual, expected, message);
 290	},
 291	
 292	deepEqual: function(a, b, message) {
 293		push(QUnit.equiv(a, b), a, b, message);
 294	},
 295
 296	notDeepEqual: function(a, b, message) {
 297		push(!QUnit.equiv(a, b), a, b, message);
 298	},
 299
 300	strictEqual: function(actual, expected, message) {
 301		push(expected === actual, actual, expected, message);
 302	},
 303
 304	notStrictEqual: function(actual, expected, message) {
 305		push(expected !== actual, actual, expected, message);
 306	},
 307	
 308	start: function() {
 309		// A slight delay, to avoid any current callbacks
 310		if ( window.setTimeout ) {
 311			window.setTimeout(function() {
 312				if ( config.timeout ) {
 313					clearTimeout(config.timeout);
 314				}
 315
 316				config.blocking = false;
 317				process();
 318			}, 13);
 319		} else {
 320			config.blocking = false;
 321			process();
 322		}
 323	},
 324	
 325	stop: function(timeout) {
 326		config.blocking = true;
 327
 328		if ( timeout && window.setTimeout ) {
 329			config.timeout = window.setTimeout(function() {
 330				QUnit.ok( false, "Test timed out" );
 331				QUnit.start();
 332			}, timeout);
 333		}
 334	},
 335	
 336	/**
 337	 * Resets the test setup. Useful for tests that modify the DOM.
 338	 */
 339	reset: function() {
 340		if ( window.jQuery ) {
 341			jQuery("#main").html( config.fixture );
 342			jQuery.event.global = {};
 343			jQuery.ajaxSettings = extend({}, config.ajaxSettings);
 344		}
 345	},
 346	
 347	/**
 348	 * Trigger an event on an element.
 349	 *
 350	 * @example triggerEvent( document.body, "click" );
 351	 *
 352	 * @param DOMElement elem
 353	 * @param String type
 354	 */
 355	triggerEvent: function( elem, type, event ) {
 356		if ( document.createEvent ) {
 357			event = document.createEvent("MouseEvents");
 358			event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
 359				0, 0, 0, 0, 0, false, false, false, false, 0, null);
 360			elem.dispatchEvent( event );
 361
 362		} else if ( elem.fireEvent ) {
 363			elem.fireEvent("on"+type);
 364		}
 365	},
 366	
 367	// Safe object type checking
 368	is: function( type, obj ) {
 369		return Object.prototype.toString.call( obj ) === "[object "+ type +"]";
 370	},
 371	
 372	// Logging callbacks
 373	done: function(failures, total) {},
 374	log: function(result, message) {},
 375	testStart: function(name) {},
 376	testDone: function(name, failures, total) {},
 377	moduleStart: function(name, testEnvironment) {},
 378	moduleDone: function(name, failures, total) {}
 379};
 380
 381// Backwards compatibility, deprecated
 382QUnit.equals = QUnit.equal;
 383QUnit.same = QUnit.deepEqual;
 384
 385// Maintain internal state
 386var config = {
 387	// The queue of tests to run
 388	queue: [],
 389
 390	// block until document ready
 391	blocking: true
 392};
 393
 394// Load paramaters
 395(function() {
 396	var location = window.location || { search: "", protocol: "file:" },
 397		GETParams = location.search.slice(1).split('&');
 398
 399	for ( var i = 0; i < GETParams.length; i++ ) {
 400		GETParams[i] = decodeURIComponent( GETParams[i] );
 401		if ( GETParams[i] === "noglobals" ) {
 402			GETParams.splice( i, 1 );
 403			i--;
 404			config.noglobals = true;
 405		} else if ( GETParams[i].search('=') > -1 ) {
 406			GETParams.splice( i, 1 );
 407			i--;
 408		}
 409	}
 410	
 411	// restrict modules/tests by get parameters
 412	config.filters = GETParams;
 413	
 414	// Figure out if we're running the tests from a server or not
 415	QUnit.isLocal = !!(location.protocol === 'file:');
 416})();
 417
 418// Expose the API as global variables, unless an 'exports'
 419// object exists, in that case we assume we're in CommonJS
 420if ( typeof exports === "undefined" || typeof require === "undefined" ) {
 421	extend(window, QUnit);
 422	window.QUnit = QUnit;
 423} else {
 424	extend(exports, QUnit);
 425	exports.QUnit = QUnit;
 426}
 427
 428if ( typeof document === "undefined" || document.readyState === "complete" ) {
 429	config.autorun = true;
 430}
 431
 432addEvent(window, "load", function() {
 433	// Initialize the config, saving the execution queue
 434	var oldconfig = extend({}, config);
 435	QUnit.init();
 436	extend(config, oldconfig);
 437
 438	config.blocking = false;
 439
 440	var userAgent = id("qunit-userAgent");
 441	if ( userAgent ) {
 442		userAgent.innerHTML = navigator.userAgent;
 443	}
 444	
 445	var toolbar = id("qunit-testrunner-toolbar");
 446	if ( toolbar ) {
 447		toolbar.style.display = "none";
 448		
 449		var filter = document.createElement("input");
 450		filter.type = "checkbox";
 451		filter.id = "qunit-filter-pass";
 452		filter.disabled = true;
 453		addEvent( filter, "click", function() {
 454			var li = document.getElementsByTagName("li");
 455			for ( var i = 0; i < li.length; i++ ) {
 456				if ( li[i].className.indexOf("pass") > -1 ) {
 457					li[i].style.display = filter.checked ? "none" : "";
 458				}
 459			}
 460		});
 461		toolbar.appendChild( filter );
 462
 463		var label = document.createElement("label");
 464		label.setAttribute("for", "qunit-filter-pass");
 465		label.innerHTML = "Hide passed tests";
 466		toolbar.appendChild( label );
 467
 468		var missing = document.createElement("input");
 469		missing.type = "checkbox";
 470		missing.id = "qunit-filter-missing";
 471		missing.disabled = true;
 472		addEvent( missing, "click", function() {
 473			var li = document.getElementsByTagName("li");
 474			for ( var i = 0; i < li.length; i++ ) {
 475				if ( li[i].className.indexOf("fail") > -1 && li[i].innerHTML.indexOf('missing test - untested code is broken code') > - 1 ) {
 476					li[i].parentNode.parentNode.style.display = missing.checked ? "none" : "block";
 477				}
 478			}
 479		});
 480		toolbar.appendChild( missing );
 481
 482		label = document.createElement("label");
 483		label.setAttribute("for", "qunit-filter-missing");
 484		label.innerHTML = "Hide missing tests (untested code is broken code)";
 485		toolbar.appendChild( label );
 486	}
 487
 488	var main = id('main');
 489	if ( main ) {
 490		config.fixture = main.innerHTML;
 491	}
 492
 493	if ( window.jQuery ) {
 494		config.ajaxSettings = window.jQuery.ajaxSettings;
 495	}
 496
 497	QUnit.start();
 498});
 499
 500function done() {
 501	if ( config.doneTimer && window.clearTimeout ) {
 502		window.clearTimeout( config.doneTimer );
 503		config.doneTimer = null;
 504	}
 505
 506	if ( config.queue.length ) {
 507		config.doneTimer = window.setTimeout(function(){
 508			if ( !config.queue.length ) {
 509				done();
 510			} else {
 511				synchronize( done );
 512			}
 513		}, 13);
 514
 515		return;
 516	}
 517
 518	config.autorun = true;
 519
 520	// Log the last module results
 521	if ( config.currentModule ) {
 522		QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
 523	}
 524
 525	var banner = id("qunit-banner"),
 526		tests = id("qunit-tests"),
 527		html = ['Tests completed in ',
 528		+new Date - config.started, ' milliseconds.<br/>',
 529		'<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('');
 530
 531	if ( banner ) {
 532		banner.className = (config.stats.bad ? "qunit-fail" : "qunit-pass");
 533	}
 534
 535	if ( tests ) {	
 536		var result = id("qunit-testresult");
 537
 538		if ( !result ) {
 539			result = document.createElement("p");
 540			result.id = "qunit-testresult";
 541			result.className = "result";
 542			tests.parentNode.insertBefore( result, tests.nextSibling );
 543		}
 544
 545		result.innerHTML = html;
 546	}
 547
 548	QUnit.done( config.stats.bad, config.stats.all );
 549}
 550
 551function validTest( name ) {
 552	var i = config.filters.length,
 553		run = false;
 554
 555	if ( !i ) {
 556		return true;
 557	}
 558	
 559	while ( i-- ) {
 560		var filter = config.filters[i],
 561			not = filter.charAt(0) == '!';
 562
 563		if ( not ) {
 564			filter = filter.slice(1);
 565		}
 566
 567		if ( name.indexOf(filter) !== -1 ) {
 568			return !not;
 569		}
 570
 571		if ( not ) {
 572			run = true;
 573		}
 574	}
 575
 576	return run;
 577}
 578
 579function push(result, actual, expected, message) {
 580	message = message || (result ? "okay" : "failed");
 581	QUnit.ok( result, result ? message + ": " + expected : message + ", expected: " + QUnit.jsDump.parse(expected) + " result: " + QUnit.jsDump.parse(actual) );
 582}
 583
 584function synchronize( callback ) {
 585	config.queue.push( callback );
 586
 587	if ( config.autorun && !config.blocking ) {
 588		process();
 589	}
 590}
 591
 592function process() {
 593	while ( config.queue.length && !config.blocking ) {
 594		config.queue.shift()();
 595	}
 596}
 597
 598function saveGlobal() {
 599	config.pollution = [];
 600	
 601	if ( config.noglobals ) {
 602		for ( var key in window ) {
 603			config.pollution.push( key );
 604		}
 605	}
 606}
 607
 608function checkPollution( name ) {
 609	var old = config.pollution;
 610	saveGlobal();
 611	
 612	var newGlobals = diff( old, config.pollution );
 613	if ( newGlobals.length > 0 ) {
 614		ok( false, "Introduced global variable(s): " + newGlobals.join(", ") );
 615		config.expected++;
 616	}
 617
 618	var deletedGlobals = diff( config.pollution, old );
 619	if ( deletedGlobals.length > 0 ) {
 620		ok( false, "Deleted global variable(s): " + deletedGlobals.join(", ") );
 621		config.expected++;
 622	}
 623}
 624
 625// returns a new Array with the elements that are in a but not in b
 626function diff( a, b ) {
 627	var result = a.slice();
 628	for ( var i = 0; i < result.length; i++ ) {
 629		for ( var j = 0; j < b.length; j++ ) {
 630			if ( result[i] === b[j] ) {
 631				result.splice(i, 1);
 632				i--;
 633				break;
 634			}
 635		}
 636	}
 637	return result;
 638}
 639
 640function fail(message, exception, callback) {
 641	if ( typeof console !== "undefined" && console.error && console.warn ) {
 642		console.error(message);
 643		console.error(exception);
 644		console.warn(callback.toString());
 645
 646	} else if ( window.opera && opera.postError ) {
 647		opera.postError(message, exception, callback.toString);
 648	}
 649}
 650
 651function extend(a, b) {
 652	for ( var prop in b ) {
 653		a[prop] = b[prop];
 654	}
 655
 656	return a;
 657}
 658
 659function addEvent(elem, type, fn) {
 660	if ( elem.addEventListener ) {
 661		elem.addEventListener( type, fn, false );
 662	} else if ( elem.attachEvent ) {
 663		elem.attachEvent( "on" + type, fn );
 664	} else {
 665		fn();
 666	}
 667}
 668
 669function id(name) {
 670	return !!(typeof document !== "undefined" && document && document.getElementById) &&
 671		document.getElementById( name );
 672}
 673
 674// Test for equality any JavaScript type.
 675// Discussions and reference: http://philrathe.com/articles/equiv
 676// Test suites: http://philrathe.com/tests/equiv
 677// Author: Philippe RathĂŠ <prathe@gmail.com>
 678QUnit.equiv = function () {
 679
 680    var innerEquiv; // the real equiv function
 681    var callers = []; // stack to decide between skip/abort functions
 682
 683
 684    // Determine what is o.
 685    function hoozit(o) {
 686        if (QUnit.is("String", o)) {
 687            return "string";
 688            
 689        } else if (QUnit.is("Boolean", o)) {
 690            return "boolean";
 691
 692        } else if (QUnit.is("Number", o)) {
 693
 694            if (isNaN(o)) {
 695                return "nan";
 696            } else {
 697                return "number";
 698            }
 699
 700        } else if (typeof o === "undefined") {
 701            return "undefined";
 702
 703        // consider: typeof null === object
 704        } else if (o === null) {
 705            return "null";
 706
 707        // consider: typeof [] === object
 708        } else if (QUnit.is( "Array", o)) {
 709            return "array";
 710        
 711        // consider: typeof new Date() === object
 712        } else if (QUnit.is( "Date", o)) {
 713            return "date";
 714
 715        // consider: /./ instanceof Object;
 716        //           /./ instanceof RegExp;
 717        //          typeof /./ === "function"; // => false in IE and Opera,
 718        //                                          true in FF and Safari
 719        } else if (QUnit.is( "RegExp", o)) {
 720            return "regexp";
 721
 722        } else if (typeof o === "object") {
 723            return "object";
 724
 725        } else if (QUnit.is( "Function", o)) {
 726            return "function";
 727        } else {
 728            return undefined;
 729        }
 730    }
 731
 732    // Call the o related callback with the given arguments.
 733    function bindCallbacks(o, callbacks, args) {
 734        var prop = hoozit(o);
 735        if (prop) {
 736            if (hoozit(callbacks[prop]) === "function") {
 737                return callbacks[prop].apply(callbacks, args);
 738            } else {
 739                return callbacks[prop]; // or undefined
 740            }
 741        }
 742    }
 743    
 744    var callbacks = function () {
 745
 746        // for string, boolean, number and null
 747        function useStrictEquality(b, a) {
 748            if (b instanceof a.constructor || a instanceof b.constructor) {
 749                // to catch short annotaion VS 'new' annotation of a declaration
 750                // e.g. var i = 1;
 751                //      var j = new Number(1);
 752                return a == b;
 753            } else {
 754                return a === b;
 755            }
 756        }
 757
 758        return {
 759            "string": useStrictEquality,
 760            "boolean": useStrictEquality,
 761            "number": useStrictEquality,
 762            "null": useStrictEquality,
 763            "undefined": useStrictEquality,
 764
 765            "nan": function (b) {
 766                return isNaN(b);
 767            },
 768
 769            "date": function (b, a) {
 770                return hoozit(b) === "date" && a.valueOf() === b.valueOf();
 771            },
 772
 773            "regexp": function (b, a) {
 774                return hoozit(b) === "regexp" &&
 775                    a.source === b.source && // the regex itself
 776                    a.global === b.global && // and its modifers (gmi) ...
 777                    a.ignoreCase === b.ignoreCase &&
 778                    a.multiline === b.multiline;
 779            },
 780
 781            // - skip when the property is a method of an instance (OOP)
 782            // - abort otherwise,
 783            //   initial === would have catch identical references anyway
 784            "function": function () {
 785                var caller = callers[callers.length - 1];
 786                return caller !== Object &&
 787                        typeof caller !== "undefined";
 788            },
 789
 790            "array": function (b, a) {
 791                var i;
 792                var len;
 793
 794                // b could be an object literal here
 795                if ( ! (hoozit(b) === "array")) {
 796                    return false;
 797                }
 798
 799                len = a.length;
 800                if (len !== b.length) { // safe and faster
 801                    return false;
 802                }
 803                for (i = 0; i < len; i++) {
 804                    if ( ! innerEquiv(a[i], b[i])) {
 805                        return false;
 806                    }
 807                }
 808                return true;
 809            },
 810
 811            "object": function (b, a) {
 812                var i;
 813                var eq = true; // unless we can proove it
 814                var aProperties = [], bProperties = []; // collection of strings
 815
 816                // comparing constructors is more strict than using instanceof
 817                if ( a.constructor !== b.constructor) {
 818                    return false;
 819                }
 820
 821                // stack constructor before traversing properties
 822                callers.push(a.constructor);
 823
 824                for (i in a) { // be strict: don't ensures hasOwnProperty and go deep
 825
 826                    aProperties.push(i); // collect a's properties
 827
 828                    if ( ! innerEquiv(a[i], b[i])) {
 829                        eq = false;
 830                    }
 831                }
 832
 833                callers.pop(); // unstack, we are done
 834
 835                for (i in b) {
 836                    bProperties.push(i); // collect b's properties
 837                }
 838
 839                // Ensures identical properties name
 840                return eq && innerEquiv(aProperties.sort(), bProperties.sort());
 841            }
 842        };
 843    }();
 844
 845    innerEquiv = function () { // can take multiple arguments
 846        var args = Array.prototype.slice.apply(arguments);
 847        if (args.length < 2) {
 848            return true; // end transition
 849        }
 850
 851        return (function (a, b) {
 852            if (a === b) {
 853                return true; // catch the most you can
 854            } else if (a === null || b === null || typeof a === "undefined" || typeof b === "undefined" || hoozit(a) !== hoozit(b)) {
 855                return false; // don't lose time with error prone cases
 856            } else {
 857                return bindCallbacks(a, callbacks, [b, a]);
 858            }
 859
 860        // apply transition with (1..n) arguments
 861        })(args[0], args[1]) && arguments.callee.apply(this, args.splice(1, args.length -1));
 862    };
 863
 864    return innerEquiv;
 865
 866}();
 867
 868/**
 869 * jsDump
 870 * Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
 871 * Licensed under BSD (http://www.opensource.org/licenses/bsd-license.php)
 872 * Date: 5/15/2008
 873 * @projectDescription Advanced and extensible data dumping for Javascript.
 874 * @version 1.0.0
 875 * @author Ariel Flesler
 876 * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
 877 */
 878QUnit.jsDump = (function() {
 879	function quote( str ) {
 880		return '"' + str.toString().replace(/"/g, '\\"') + '"';
 881	};
 882	function literal( o ) {
 883		return o + '';	
 884	};
 885	function join( pre, arr, post ) {
 886		var s = jsDump.separator(),
 887			base = jsDump.indent(),
 888			inner = jsDump.indent(1);
 889		if ( arr.join )
 890			arr = arr.join( ',' + s + inner );
 891		if ( !arr )
 892			return pre + post;
 893		return [ pre, inner + arr, base + post ].join(s);
 894	};
 895	function array( arr ) {
 896		var i = arr.length,	ret = Array(i);					
 897		this.up();
 898		while ( i-- )
 899			ret[i] = this.parse( arr[i] );				
 900		this.down();
 901		return join( '[', ret, ']' );
 902	};
 903	
 904	var reName = /^function (\w+)/;
 905	
 906	var jsDump = {
 907		parse:function( obj, type ) { //type is used mostly internally, you can fix a (custom)type in advance
 908			var	parser = this.parsers[ type || this.typeOf(obj) ];
 909			type = typeof parser;			
 910			
 911			return type == 'function' ? parser.call( this, obj ) :
 912				   type == 'string' ? parser :
 913				   this.parsers.error;
 914		},
 915		typeOf:function( obj ) {
 916			var type;
 917			if ( obj === null ) {
 918				type = "null";
 919			} else if (typeof obj === "undefined") {
 920				type = "undefined";
 921			} else if (QUnit.is("RegExp", obj)) {
 922				type = "regexp";
 923			} else if (QUnit.is("Date", obj)) {
 924				type = "date";
 925			} else if (QUnit.is("Function", obj)) {
 926				type = "function";
 927			} else if (QUnit.is("Array", obj)) {
 928				type = "array";
 929			} else if (QUnit.is("Window", obj) || QUnit.is("global", obj)) {
 930				type = "window";
 931			} else if (QUnit.is("HTMLDocument", obj)) {
 932				type = "document";
 933			} else if (QUnit.is("HTMLCollection", obj) || QUnit.is("NodeList", obj)) {
 934				type = "nodelist";
 935			} else if (/^\[object HTML/.test(Object.prototype.toString.call( obj ))) {
 936				type = "node";
 937			} else {
 938				type = typeof obj;
 939			}
 940			return type;
 941		},
 942		separator:function() {
 943			return this.multiline ?	this.HTML ? '<br />' : '\n' : this.HTML ? '&nbsp;' : ' ';
 944		},
 945		indent:function( extra ) {// extra can be a number, shortcut for increasing-calling-decreasing
 946			if ( !this.multiline )
 947				return '';
 948			var chr = this.indentChar;
 949			if ( this.HTML )
 950				chr = chr.replace(/\t/g,'   ').replace(/ /g,'&nbsp;');
 951			return Array( this._depth_ + (extra||0) ).join(chr);
 952		},
 953		up:function( a ) {
 954			this._depth_ += a || 1;
 955		},
 956		down:function( a ) {
 957			this._depth_ -= a || 1;
 958		},
 959		setParser:function( name, parser ) {
 960			this.parsers[name] = parser;
 961		},
 962		// The next 3 are exposed so you can use them
 963		quote:quote, 
 964		literal:literal,
 965		join:join,
 966		//
 967		_depth_: 1,
 968		// This is the list of parsers, to modify them, use jsDump.setParser
 969		parsers:{
 970			window: '[Window]',
 971			document: '[Document]',
 972			error:'[ERROR]', //when no parser is found, shouldn't happen
 973			unknown: '[Unknown]',
 974			'null':'null',
 975			undefined:'undefined',
 976			'function':function( fn ) {
 977				var ret = 'function',
 978					name = 'name' in fn ? fn.name : (reName.exec(fn)||[])[1];//functions never have name in IE
 979				if ( name )
 980					ret += ' ' + name;
 981				ret += '(';
 982				
 983				ret = [ ret, this.parse( fn, 'functionArgs' ), '){'].join('');
 984				return join( ret, this.parse(fn,'functionCode'), '}' );
 985			},
 986			array: array,
 987			nodelist: array,
 988			arguments: array,
 989			object:function( map ) {
 990				var ret = [ ];
 991				this.up();
 992				for ( var key in map )
 993					ret.push( this.parse(key,'key') + ': ' + this.parse(map[key]) );
 994				this.down();
 995				return join( '{', ret, '}' );
 996			},
 997			node:function( node ) {
 998				var open = this.HTML ? '&lt;' : '<',
 999					close = this.HTML ? '&gt;' : '>';
1000					
1001				var tag = node.nodeName.toLowerCase(),
1002					ret = open + tag;
1003					
1004				for ( var a in this.DOMAttrs ) {
1005					var val = node[this.DOMAttrs[a]];
1006					if ( val )
1007						ret += ' ' + a + '=' + this.parse( val, 'attribute' );
1008				}
1009				return ret + close + open + '/' + tag + close;
1010			},
1011			functionArgs:function( fn ) {//function calls it internally, it's the arguments part of the function
1012				var l = fn.length;
1013				if ( !l ) return '';				
1014				
1015				var args = Array(l);
1016				while ( l-- )
1017					args[l] = String.fromCharCode(97+l);//97 is 'a'
1018				return ' ' + args.join(', ') + ' ';
1019			},
1020			key:quote, //object calls it internally, the key part of an item in a map
1021			functionCode:'[code]', //function calls it internally, it's the content of the function
1022			attribute:quote, //node calls it internally, it's an html attribute value
1023			string:quote,
1024			date:quote,
1025			regexp:literal, //regex
1026			number:literal,
1027			'boolean':literal
1028		},
1029		DOMAttrs:{//attributes to dump from nodes, name=>realName
1030			id:'id',
1031			name:'name',
1032			'class':'className'
1033		},
1034		HTML:true,//if true, entities are escaped ( <, >, \t, space and \n )
1035		indentChar:'   ',//indentation unit
1036		multiline:true //if true, items in a collection, are separated by a \n, else just a space.
1037	};
1038
1039	return jsDump;
1040})();
1041
1042})(this);