aboutsummaryrefslogtreecommitdiffstats
path: root/external/qunit.js
blob: 0dd3155305a832b7045edfb2bfbe3d1f7ee5a903 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
/*
 * QUnit - A JavaScript Unit Testing Framework
 * 
 * http://docs.jquery.com/QUnit
 *
 * Copyright (c) 2009 John Resig, Jörn Zaefferer
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 */

(function(window) {

var QUnit = {

	// Initialize the configuration options
	init: function() {
		config = {
			stats: { all: 0, bad: 0 },
			moduleStats: { all: 0, bad: 0 },
			started: +new Date,
			updateRate: 1000,
			blocking: false,
			autorun: false,
			assertions: [],
			filters: [],
			queue: []
		};

		var tests = id("qunit-tests"),
			banner = id("qunit-banner"),
			result = id("qunit-testresult");

		if ( tests ) {
			tests.innerHTML = "";
		}

		if ( banner ) {
			banner.className = "";
		}

		if ( result ) {
			result.parentNode.removeChild( result );
		}
	},
	
	// call on start of module test to prepend name to all tests
	module: function(name, testEnvironment) {
		config.currentModule = name;

		synchronize(function() {
			if ( config.currentModule ) {
				QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
			}

			config.currentModule = name;
			config.moduleTestEnvironment = testEnvironment;
			config.moduleStats = { all: 0, bad: 0 };

			QUnit.moduleStart( name, testEnvironment );
		});
	},

	asyncTest: function(testName, expected, callback) {
		if ( arguments.length === 2 ) {
			callback = expected;
			expected = 0;
		}

		QUnit.test(testName, expected, callback, true);
	},
	
	test: function(testName, expected, callback, async) {
		var name = testName, testEnvironment, testEnvironmentArg;

		if ( arguments.length === 2 ) {
			callback = expected;
			expected = null;
		}
		// is 2nd argument a testEnvironment?
		if ( expected && typeof expected === 'object') {
			testEnvironmentArg =  expected;
			expected = null;
		}

		if ( config.currentModule ) {
			name = config.currentModule + " module: " + name;
		}

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

		synchronize(function() {
			QUnit.testStart( testName );

			testEnvironment = extend({
				setup: function() {},
				teardown: function() {}
			}, config.moduleTestEnvironment);
			if (testEnvironmentArg) {
				extend(testEnvironment,testEnvironmentArg);
			}

			// allow utility functions to access the current test environment
			QUnit.current_testEnvironment = testEnvironment;
			
			config.assertions = [];
			config.expected = expected;

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

				testEnvironment.setup.call(testEnvironment);
			} catch(e) {
				QUnit.ok( false, "Setup failed on " + name + ": " + e.message );
			}

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

			try {
				callback.call(testEnvironment);
			} catch(e) {
				fail("Test " + name + " died, exception and test follows", e, callback);
				QUnit.ok( false, "Died on test #" + (config.assertions.length + 1) + ": " + e.message );
				// else next test will carry the responsibility
				saveGlobal();

				// Restart the tests if they're blocking
				if ( config.blocking ) {
					start();
				}
			}
		});

		synchronize(function() {
			try {
				checkPollution();
				testEnvironment.teardown.call(testEnvironment);
			} catch(e) {
				QUnit.ok( false, "Teardown failed on " + name + ": " + e.message );
			}

			try {
				QUnit.reset();
			} catch(e) {
				fail("reset() failed, following Test " + name + ", exception and reset fn follows", e, reset);
			}

			if ( config.expected && config.expected != config.assertions.length ) {
				QUnit.ok( false, "Expected " + config.expected + " assertions, but " + config.assertions.length + " were run" );
			}

			var good = 0, bad = 0,
				tests = id("qunit-tests");

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

			if ( tests ) {
				var ol  = document.createElement("ol");
				ol.style.display = "none";

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

					var li = document.createElement("li");
					li.className = assertion.result ? "pass" : "fail";
					li.appendChild(document.createTextNode(assertion.message || "(no message)"));
					ol.appendChild( li );

					if ( assertion.result ) {
						good++;
					} else {
						bad++;
						config.stats.bad++;
						config.moduleStats.bad++;
					}
				}

				var b = document.createElement("strong");
				b.innerHTML = name + " <b style='color:black;'>(<b class='fail'>" + bad + "</b>, <b class='pass'>" + good + "</b>, " + config.assertions.length + ")</b>";
				
				addEvent(b, "click", function() {
					var next = b.nextSibling, display = next.style.display;
					next.style.display = display === "none" ? "block" : "none";
				});
				
				addEvent(b, "dblclick", function(e) {
					var target = e && e.target ? e.target : window.event.srcElement;
					if ( target.nodeName.toLowerCase() === "strong" ) {
						var text = "", node = target.firstChild;

						while ( node.nodeType === 3 ) {
							text += node.nodeValue;
							node = node.nextSibling;
						}

						text = text.replace(/(^\s*|\s*$)/g, "");

						if ( window.location ) {
							window.location.href = window.location.href.match(/^(.+?)(\?.*)?$/)[1] + "?" + encodeURIComponent(text);
						}
					}
				});

				var li = document.createElement("li");
				li.className = bad ? "fail" : "pass";
				li.appendChild( b );
				li.appendChild( ol );
				tests.appendChild( li );

				if ( bad ) {
					var toolbar = id("qunit-testrunner-toolbar");
					if ( toolbar ) {
						toolbar.style.display = "block";
						id("qunit-filter-pass").disabled = null;
						id("qunit-filter-missing").disabled = null;
					}
				}

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

			QUnit.testDone( testName, bad, config.assertions.length );

			if ( !window.setTimeout && !config.queue.length ) {
				done();
			}
		});

		if ( window.setTimeout && !config.doneTimer ) {
			config.doneTimer = window.setTimeout(function(){
				if ( !config.queue.length ) {
					done();
				} else {
					synchronize( done );
				}
			}, 13);
		}
	},
	
	/**
	 * Specify the number of expected assertions to gurantee that failed test (no assertions are run at all) don't slip through.
	 */
	expect: function(asserts) {
		config.expected = asserts;
	},

	/**
	 * Asserts true.
	 * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
	 */
	ok: function(a, msg) {
		QUnit.log(a, msg);

		config.assertions.push({
			result: !!a,
			message: msg
		});
	},

	/**
	 * Checks that the first two arguments are equal, with an optional message.
	 * Prints out both actual and expected values.
	 *
	 * Prefered to ok( actual == expected, message )
	 *
	 * @example equal( format("Received {0} bytes.", 2), "Received 2 bytes." );
	 *
	 * @param Object actual
	 * @param Object expected
	 * @param String message (optional)
	 */
	equal: function(actual, expected, message) {
		push(expected == actual, actual, expected, message);
	},

	notEqual: function(actual, expected, message) {
		push(expected != actual, actual, expected, message);
	},
	
	deepEqual: function(a, b, message) {
		push(QUnit.equiv(a, b), a, b, message);
	},

	notDeepEqual: function(a, b, message) {
		push(!QUnit.equiv(a, b), a, b, message);
	},

	strictEqual: function(actual, expected, message) {
		push(expected === actual, actual, expected, message);
	},

	notStrictEqual: function(actual, expected, message) {
		push(expected !== actual, actual, expected, message);
	},
	
	start: function() {
		// A slight delay, to avoid any current callbacks
		if ( window.setTimeout ) {
			window.setTimeout(function() {
				if ( config.timeout ) {
					clearTimeout(config.timeout);
				}

				config.blocking = false;
				process();
			}, 13);
		} else {
			config.blocking = false;
			process();
		}
	},
	
	stop: function(timeout) {
		config.blocking = true;

		if ( timeout && window.setTimeout ) {
			config.timeout = window.setTimeout(function() {
				QUnit.ok( false, "Test timed out" );
				QUnit.start();
			}, timeout);
		}
	},
	
	/**
	 * Resets the test setup. Useful for tests that modify the DOM.
	 */
	reset: function() {
		if ( window.jQuery ) {
			jQuery("#main").html( config.fixture );
			jQuery.event.global = {};
			jQuery.ajaxSettings = extend({}, config.ajaxSettings);
		}
	},
	
	/**
	 * Trigger an event on an element.
	 *
	 * @example triggerEvent( document.body, "click" );
	 *
	 * @param DOMElement elem
	 * @param String type
	 */
	triggerEvent: function( elem, type, event ) {
		if ( document.createEvent ) {
			event = document.createEvent("MouseEvents");
			event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
				0, 0, 0, 0, 0, false, false, false, false, 0, null);
			elem.dispatchEvent( event );

		} else if ( elem.fireEvent ) {
			elem.fireEvent("on"+type);
		}
	},
	
	// Safe object type checking
	is: function( type, obj ) {
		return Object.prototype.toString.call( obj ) === "[object "+ type +"]";
	},
	
	// Logging callbacks
	done: function(failures, total) {},
	log: function(result, message) {},
	testStart: function(name) {},
	testDone: function(name, failures, total) {},
	moduleStart: function(name, testEnvironment) {},
	moduleDone: function(name, failures, total) {}
};

// Backwards compatibility, deprecated
QUnit.equals = QUnit.equal;
QUnit.same = QUnit.deepEqual;

// Maintain internal state
var config = {
	// The queue of tests to run
	queue: [],

	// block until document ready
	blocking: true
};

// Load paramaters
(function() {
	var location = window.location || { search: "", protocol: "file:" },
		GETParams = location.search.slice(1).split('&');

	for ( var i = 0; i < GETParams.length; i++ ) {
		GETParams[i] = decodeURIComponent( GETParams[i] );
		if ( GETParams[i] === "noglobals" ) {
			GETParams.splice( i, 1 );
			i--;
			config.noglobals = true;
		} else if ( GETParams[i].search('=') > -1 ) {
			GETParams.splice( i, 1 );
			i--;
		}
	}
	
	// restrict modules/tests by get parameters
	config.filters = GETParams;
	
	// Figure out if we're running the tests from a server or not
	QUnit.isLocal = !!(location.protocol === 'file:');
})();

// Expose the API as global variables, unless an 'exports'
// object exists, in that case we assume we're in CommonJS
if ( typeof exports === "undefined" || typeof require === "undefined" ) {
	extend(window, QUnit);
	window.QUnit = QUnit;
} else {
	extend(exports, QUnit);
	exports.QUnit = QUnit;
}

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

addEvent(window, "load", function() {
	// Initialize the config, saving the execution queue
	var oldconfig = extend({}, config);
	QUnit.init();
	extend(config, oldconfig);

	config.blocking = false;

	var userAgent = id("qunit-userAgent");
	if ( userAgent ) {
		userAgent.innerHTML = navigator.userAgent;
	}
	
	var toolbar = id("qunit-testrunner-toolbar");
	if ( toolbar ) {
		toolbar.style.display = "none";
		
		var filter = document.createElement("input");
		filter.type = "checkbox";
		filter.id = "qunit-filter-pass";
		filter.disabled = true;
		addEvent( filter, "click", function() {
			var li = document.getElementsByTagName("li");
			for ( var i = 0; i < li.length; i++ ) {
				if ( li[i].className.indexOf("pass") > -1 ) {
					li[i].style.display = filter.checked ? "none" : "";
				}
			}
		});
		toolbar.appendChild( filter );

		var label = document.createElement("label");
		label.setAttribute("for", "qunit-filter-pass");
		label.innerHTML = "Hide passed tests";
		toolbar.appendChild( label );

		var missing = document.createElement("input");
		missing.type = "checkbox";
		missing.id = "qunit-filter-missing";
		missing.disabled = true;
		addEvent( missing, "click", function() {
			var li = document.getElementsByTagName("li");
			for ( var i = 0; i < li.length; i++ ) {
				if ( li[i].className.indexOf("fail") > -1 && li[i].innerHTML.indexOf('missing test - untested code is broken code') > - 1 ) {
					li[i].parentNode.parentNode.style.display = missing.checked ? "none" : "block";
				}
			}
		});
		toolbar.appendChild( missing );

		label = document.createElement("label");
		label.setAttribute("for", "qunit-filter-missing");
		label.innerHTML = "Hide missing tests (untested code is broken code)";
		toolbar.appendChild( label );
	}

	var main = id('main');
	if ( main ) {
		config.fixture = main.innerHTML;
	}

	if ( window.jQuery ) {
		config.ajaxSettings = window.jQuery.ajaxSettings;
	}

	QUnit.start();
});

function done() {
	if ( config.doneTimer && window.clearTimeout ) {
		window.clearTimeout( config.doneTimer );
		config.doneTimer = null;
	}

	if ( config.queue.length ) {
		config.doneTimer = window.setTimeout(function(){
			if ( !config.queue.length ) {
				done();
			} else {
				synchronize( done );
			}
		}, 13);

		return;
	}

	config.autorun = true;

	// Log the last module results
	if ( config.currentModule ) {
		QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
	}

	var banner = id("qunit-banner"),
		tests = id("qunit-tests"),
		html = ['Tests completed in ',
		+new Date - config.started, ' milliseconds.<br/>',
		'<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('');

	if ( banner ) {
		banner.className = (config.stats.bad ? "qunit-fail" : "qunit-pass");
	}

	if ( tests ) {	
		var result = id("qunit-testresult");

		if ( !result ) {
			result = document.createElement("p");
			result.id = "qunit-testresult";
			result.className = "result";
			tests.parentNode.insertBefore( result, tests.nextSibling );
		}

		result.innerHTML = html;
	}

	QUnit.done( config.stats.bad, config.stats.all );
}

function validTest( name ) {
	var i = config.filters.length,
		run = false;

	if ( !i ) {
		return true;
	}
	
	while ( i-- ) {
		var filter = config.filters[i],
			not = filter.charAt(0) == '!';

		if ( not ) {
			filter = filter.slice(1);
		}

		if ( name.indexOf(filter) !== -1 ) {
			return !not;
		}

		if ( not ) {
			run = true;
		}
	}

	return run;
}

function push(result, actual, expected, message) {
	message = message || (result ? "okay" : "failed");
	QUnit.ok( result, result ? message + ": " + QUnit.jsDump.parse(expected) : message + ", expected: " + QUnit.jsDump.parse(expected) + " result: " + QUnit.jsDump.parse(actual) );
}

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

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

function process() {
	var start = (new Date()).getTime();

	while ( config.queue.length && !config.blocking ) {
		if ( config.updateRate <= 0 || (((new Date()).getTime() - start) < config.updateRate) ) {
			config.queue.shift()();

		} else {
			setTimeout( process, 13 );
			break;
		}
	}
}

function saveGlobal() {
	config.pollution = [];
	
	if ( config.noglobals ) {
		for ( var key in window ) {
			config.pollution.push( key );
		}
	}
}

function checkPollution( name ) {
	var old = config.pollution;
	saveGlobal();
	
	var newGlobals = diff( old, config.pollution );
	if ( newGlobals.length > 0 ) {
		ok( false, "Introduced global variable(s): " + newGlobals.join(", ") );
		config.expected++;
	}

	var deletedGlobals = diff( config.pollution, old );
	if ( deletedGlobals.length > 0 ) {
		ok( false, "Deleted global variable(s): " + deletedGlobals.join(", ") );
		config.expected++;
	}
}

// returns a new Array with the elements that are in a but not in b
function diff( a, b ) {
	var result = a.slice();
	for ( var i = 0; i < result.length; i++ ) {
		for ( var j = 0; j < b.length; j++ ) {
			if ( result[i] === b[j] ) {
				result.splice(i, 1);
				i--;
				break;
			}
		}
	}
	return result;
}

function fail(message, exception, callback) {
	if ( typeof console !== "undefined" && console.error && console.warn ) {
		console.error(message);
		console.error(exception);
		console.warn(callback.toString());

	} else if ( window.opera && opera.postError ) {
		opera.postError(message, exception, callback.toString);
	}
}

function extend(a, b) {
	for ( var prop in b ) {
		a[prop] = b[prop];
	}

	return a;
}

function addEvent(elem, type, fn) {
	if ( elem.addEventListener ) {
		elem.addEventListener( type, fn, false );
	} else if ( elem.attachEvent ) {
		elem.attachEvent( "on" + type, fn );
	} else {
		fn();
	}
}

function id(name) {
	return !!(typeof document !== "undefined" && document && document.getElementById) &&
		document.getElementById( name );
}

// Test for equality any JavaScript type.
// Discussions and reference: http://philrathe.com/articles/equiv
// Test suites: http://philrathe.com/tests/equiv
// Author: Philippe Rathé <prathe@gmail.com>
QUnit.equiv = function () {

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


    // Determine what is o.
    function hoozit(o) {
        if (QUnit.is("String", o)) {
            return "string";
            
        } else if (QUnit.is("Boolean", o)) {
            return "boolean";

        } else if (QUnit.is("Number", o)) {

            if (isNaN(o)) {
                return "nan";
            } else {
                return "number";
            }

        } else if (typeof o === "undefined") {
            return "undefined";

        // consider: typeof null === object
        } else if (o === null) {
            return "null";

        // consider: typeof [] === object
        } else if (QUnit.is( "Array", o)) {
            return "array";
        
        // consider: typeof new Date() === object
        } else if (QUnit.is( "Date", o)) {
            return "date";

        // consider: /./ instanceof Object;
        //           /./ instanceof RegExp;
        //          typeof /./ === "function"; // => false in IE and Opera,
        //                                          true in FF and Safari
        } else if (QUnit.is( "RegExp", o)) {
            return "regexp";

        } else if (typeof o === "object") {
            return "object";

        } else if (QUnit.is( "Function", o)) {
            return "function";
        } else {
            return undefined;
        }
    }

    // Call the o related callback with the given arguments.
    function bindCallbacks(o, callbacks, args) {
        var prop = hoozit(o);
        if (prop) {
            if (hoozit(callbacks[prop]) === "function") {
                return callbacks[prop].apply(callbacks, args);
            } else {
                return callbacks[prop]; // or undefined
            }
        }
    }
    
    var callbacks = function () {

        // for string, boolean, number and null
        function useStrictEquality(b, a) {
            if (b instanceof a.constructor || a instanceof b.constructor) {
                // to catch short annotaion VS 'new' annotation of a declaration
                // e.g. var i = 1;
                //      var j = new Number(1);
                return a == b;
            } else {
                return a === b;
            }
        }

        return {
            "string": useStrictEquality,
            "boolean": useStrictEquality,
            "number": useStrictEquality,
            "null": useStrictEquality,
            "undefined": useStrictEquality,

            "nan": function (b) {
                return isNaN(b);
            },

            "date": function (b, a) {
                return hoozit(b) === "date" && a.valueOf() === b.valueOf();
            },

            "regexp": function (b, a) {
                return hoozit(b) === "regexp" &&
                    a.source === b.source && // the regex itself
                    a.global === b.global && // and its modifers (gmi) ...
                    a.ignoreCase === b.ignoreCase &&
                    a.multiline === b.multiline;
            },

            // - 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, loop;
                var len;

                // b could be an object literal here
                if ( ! (hoozit(b) === "array")) {
                    return false;
                }   
                
                len = a.length;
                if (len !== b.length) { // safe and faster
                    return false;
                }
                
                //track reference to avoid circular references
                parents.push(a);
                for (i = 0; i < len; i++) {
                    loop = false;
                    for(j=0;j<parents.length;j++){
                        if(parents[j] === a[i]){
                            loop = true;//dont rewalk array
                        }
                    }
                    if (!loop && ! innerEquiv(a[i], b[i])) {
                        parents.pop();
                        return false;
                    }
                }
                parents.pop();
                return true;
            },

            "object": function (b, a) {
                var i, j, loop;
                var eq = true; // unless we can proove it
                var aProperties = [], bProperties = []; // collection of strings

                // comparing constructors is more strict than using instanceof
                if ( a.constructor !== b.constructor) {
                    return false;
                }

                // stack constructor before traversing properties
                callers.push(a.constructor);
                //track reference to avoid circular references
                parents.push(a);
                
                for (i in a) { // be strict: don't ensures hasOwnProperty and go deep
                    loop = false;
                    for(j=0;j<parents.length;j++){
                        if(parents[j] === a[i])
                            loop = true; //don't go down the same path twice
                    }
                    aProperties.push(i); // collect a's properties

                    if (!loop && ! innerEquiv(a[i], b[i])) {
                        eq = false;
                        break;
                    }
                }

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

                for (i in b) {
                    bProperties.push(i); // collect b's properties
                }

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

    innerEquiv = function () { // can take multiple arguments
        var args = Array.prototype.slice.apply(arguments);
        if (args.length < 2) {
            return true; // end transition
        }

        return (function (a, b) {
            if (a === b) {
                return true; // catch the most you can
            } else if (a === null || b === null || typeof a === "undefined" || typeof b === "undefined" || hoozit(a) !== hoozit(b)) {
                return false; // don't lose time with error prone cases
            } else {
                return bindCallbacks(a, callbacks, [b, a]);
            }

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

    return innerEquiv;

}();

/**
 * jsDump
 * Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
 * Licensed under BSD (http://www.opensource.org/licenses/bsd-license.php)
 * Date: 5/15/2008
 * @projectDescription Advanced and extensible data dumping for Javascript.
 * @version 1.0.0
 * @author Ariel Flesler
 * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
 */
QUnit.jsDump = (function() {
	function quote( str ) {
		return '"' + str.toString().replace(/"/g, '\\"') + '"';
	};
	function literal( o ) {
		return o + '';	
	};
	function join( pre, arr, post ) {
		var s = jsDump.separator(),
			base = jsDump.indent(),
			inner = jsDump.indent(1);
		if ( arr.join )
			arr = arr.join( ',' + s + inner );
		if ( !arr )
			return pre + post;
		return [ pre, inner + arr, base + post ].join(s);
	};
	function array( arr ) {
		var i = arr.length,	ret = Array(i);					
		this.up();
		while ( i-- )
			ret[i] = this.parse( arr[i] );				
		this.down();
		return join( '[', ret, ']' );
	};
	
	var reName = /^function (\w+)/;
	
	var jsDump = {
		parse:function( obj, type ) { //type is used mostly internally, you can fix a (custom)type in advance
			var	parser = this.parsers[ type || this.typeOf(obj) ];
			type = typeof parser;			
			
			return type == 'function' ? parser.call( this, obj ) :
				   type == 'string' ? parser :
				   this.parsers.error;
		},
		typeOf:function( obj ) {
			var type;
			if ( obj === null ) {
				type = "null";
			} else if (typeof obj === "undefined") {
				type = "undefined";
			} else if (QUnit.is("RegExp", obj)) {
				type = "regexp";
			} else if (QUnit.is("Date", obj)) {
				type = "date";
			} else if (QUnit.is("Function", obj)) {
				type = "function";
			} else if (QUnit.is("Array", obj)) {
				type = "array";
			} else if (QUnit.is("Window", obj) || QUnit.is("global", obj)) {
				type = "window";
			} else if (QUnit.is("HTMLDocument", obj)) {
				type = "document";
			} else if (QUnit.is("HTMLCollection", obj) || QUnit.is("NodeList", obj)) {
				type = "nodelist";
			} else if (/^\[object HTML/.test(Object.prototype.toString.call( obj ))) {
				type = "node";
			} else {
				type = typeof obj;
			}
			return type;
		},
		separator:function() {
			return this.multiline ?	this.HTML ? '<br />' : '\n' : this.HTML ? '&nbsp;' : ' ';
		},
		indent:function( extra ) {// extra can be a number, shortcut for increasing-calling-decreasing
			if ( !this.multiline )
				return '';
			var chr = this.indentChar;
			if ( this.HTML )
				chr = chr.replace(/\t/g,'   ').replace(/ /g,'&nbsp;');
			return Array( this._depth_ + (extra||0) ).join(chr);
		},
		up:function( a ) {
			this._depth_ += a || 1;
		},
		down:function( a ) {
			this._depth_ -= a || 1;
		},
		setParser:function( name, parser ) {
			this.parsers[name] = parser;
		},
		// The next 3 are exposed so you can use them
		quote:quote, 
		literal:literal,
		join:join,
		//
		_depth_: 1,
		// This is the list of parsers, to modify them, use jsDump.setParser
		parsers:{
			window: '[Window]',
			document: '[Document]',
			error:'[ERROR]', //when no parser is found, shouldn't happen
			unknown: '[Unknown]',
			'null':'null',
			undefined:'undefined',
			'function':function( fn ) {
				var ret = 'function',
					name = 'name' in fn ? fn.name : (reName.exec(fn)||[])[1];//functions never have name in IE
				if ( name )
					ret += ' ' + name;
				ret += '(';
				
				ret = [ ret, this.parse( fn, 'functionArgs' ), '){'].join('');
				return join( ret, this.parse(fn,'functionCode'), '}' );
			},
			array: array,
			nodelist: array,
			arguments: array,
			object:function( map ) {
				var ret = [ ];
				this.up();
				for ( var key in map )
					ret.push( this.parse(key,'key') + ': ' + this.parse(map[key]) );
				this.down();
				return join( '{', ret, '}' );
			},
			node:function( node ) {
				var open = this.HTML ? '&lt;' : '<',
					close = this.HTML ? '&gt;' : '>';
					
				var tag = node.nodeName.toLowerCase(),
					ret = open + tag;
					
				for ( var a in this.DOMAttrs ) {
					var val = node[this.DOMAttrs[a]];
					if ( val )
						ret += ' ' + a + '=' + this.parse( val, 'attribute' );
				}
				return ret + close + open + '/' + tag + close;
			},
			functionArgs:function( fn ) {//function calls it internally, it's the arguments part of the function
				var l = fn.length;
				if ( !l ) return '';				
				
				var args = Array(l);
				while ( l-- )
					args[l] = String.fromCharCode(97+l);//97 is 'a'
				return ' ' + args.join(', ') + ' ';
			},
			key:quote, //object calls it internally, the key part of an item in a map
			functionCode:'[code]', //function calls it internally, it's the content of the function
			attribute:quote, //node calls it internally, it's an html attribute value
			string:quote,
			date:quote,
			regexp:literal, //regex
			number:literal,
			'boolean':literal
		},
		DOMAttrs:{//attributes to dump from nodes, name=>realName
			id:'id',
			name:'name',
			'class':'className'
		},
		HTML:false,//if true, entities are escaped ( <, >, \t, space and \n )
		indentChar:'   ',//indentation unit
		multiline:false //if true, items in a collection, are separated by a \n, else just a space.
	};

	return jsDump;
})();

})(this);