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Lint: Tighten .jshintrc options and enforce them.
[qunit.git] / qunit / qunit.js
1 /**
2  * QUnit v1.11.0pre - A JavaScript Unit Testing Framework
3  *
4  * http://qunitjs.com
5  *
6  * Copyright 2012 jQuery Foundation and other contributors
7  * Released under the MIT license.
8  * http://jquery.org/license
9  */
10
11 (function( window ) {
12
13 var QUnit,
14         assert,
15         config,
16         onErrorFnPrev,
17         testId = 0,
18         fileName = (sourceFromStacktrace( 0 ) || "" ).replace(/(:\d+)+\)?/, "").replace(/.+\//, ""),
19         toString = Object.prototype.toString,
20         hasOwn = Object.prototype.hasOwnProperty,
21         // Keep a local reference to Date (GH-283)
22         Date = window.Date,
23         defined = {
24         setTimeout: typeof window.setTimeout !== "undefined",
25         sessionStorage: (function() {
26                 var x = "qunit-test-string";
27                 try {
28                         sessionStorage.setItem( x, x );
29                         sessionStorage.removeItem( x );
30                         return true;
31                 } catch( e ) {
32                         return false;
33                 }
34         }())
35 };
36
37 function Test( settings ) {
38         extend( this, settings );
39         this.assertions = [];
40         this.testNumber = ++Test.count;
41 }
42
43 Test.count = 0;
44
45 Test.prototype = {
46         init: function() {
47                 var a, b, li,
48         tests = id( "qunit-tests" );
49
50                 if ( tests ) {
51                         b = document.createElement( "strong" );
52                         b.innerHTML = this.name;
53
54                         // `a` initialized at top of scope
55                         a = document.createElement( "a" );
56                         a.innerHTML = "Rerun";
57                         a.href = QUnit.url({ testNumber: this.testNumber });
58
59                         li = document.createElement( "li" );
60                         li.appendChild( b );
61                         li.appendChild( a );
62                         li.className = "running";
63                         li.id = this.id = "qunit-test-output" + testId++;
64
65                         tests.appendChild( li );
66                 }
67         },
68         setup: function() {
69                 if ( this.module !== config.previousModule ) {
70                         if ( config.previousModule ) {
71                                 runLoggingCallbacks( "moduleDone", QUnit, {
72                                         name: config.previousModule,
73                                         failed: config.moduleStats.bad,
74                                         passed: config.moduleStats.all - config.moduleStats.bad,
75                                         total: config.moduleStats.all
76                                 });
77                         }
78                         config.previousModule = this.module;
79                         config.moduleStats = { all: 0, bad: 0 };
80                         runLoggingCallbacks( "moduleStart", QUnit, {
81                                 name: this.module
82                         });
83                 } else if ( config.autorun ) {
84                         runLoggingCallbacks( "moduleStart", QUnit, {
85                                 name: this.module
86                         });
87                 }
88
89                 config.current = this;
90
91                 this.testEnvironment = extend({
92                         setup: function() {},
93                         teardown: function() {}
94                 }, this.moduleTestEnvironment );
95
96                 runLoggingCallbacks( "testStart", QUnit, {
97                         name: this.testName,
98                         module: this.module
99                 });
100
101                 // allow utility functions to access the current test environment
102                 // TODO why??
103                 QUnit.current_testEnvironment = this.testEnvironment;
104
105                 if ( !config.pollution ) {
106                         saveGlobal();
107                 }
108                 if ( config.notrycatch ) {
109                         this.testEnvironment.setup.call( this.testEnvironment );
110                         return;
111                 }
112                 try {
113                         this.testEnvironment.setup.call( this.testEnvironment );
114                 } catch( e ) {
115                         QUnit.pushFailure( "Setup failed on " + this.testName + ": " + ( e.message || e ), extractStacktrace( e, 1 ) );
116                 }
117         },
118         run: function() {
119                 config.current = this;
120
121                 var running = id( "qunit-testresult" );
122
123                 if ( running ) {
124                         running.innerHTML = "Running: <br/>" + this.name;
125                 }
126
127                 if ( this.async ) {
128                         QUnit.stop();
129                 }
130
131                 if ( config.notrycatch ) {
132                         this.callback.call( this.testEnvironment, QUnit.assert );
133                         return;
134                 }
135
136                 try {
137                         this.callback.call( this.testEnvironment, QUnit.assert );
138                 } catch( e ) {
139                         QUnit.pushFailure( "Died on test #" + (this.assertions.length + 1) + " " + this.stack + ": " + ( e.message || e ), extractStacktrace( e, 0 ) );
140                         // else next test will carry the responsibility
141                         saveGlobal();
142
143                         // Restart the tests if they're blocking
144                         if ( config.blocking ) {
145                                 QUnit.start();
146                         }
147                 }
148         },
149         teardown: function() {
150                 config.current = this;
151                 if ( config.notrycatch ) {
152                         this.testEnvironment.teardown.call( this.testEnvironment );
153                         return;
154                 } else {
155                         try {
156                                 this.testEnvironment.teardown.call( this.testEnvironment );
157                         } catch( e ) {
158                                 QUnit.pushFailure( "Teardown failed on " + this.testName + ": " + ( e.message || e ), extractStacktrace( e, 1 ) );
159                         }
160                 }
161                 checkPollution();
162         },
163         finish: function() {
164                 config.current = this;
165                 if ( config.requireExpects && this.expected === null ) {
166                         QUnit.pushFailure( "Expected number of assertions to be defined, but expect() was not called.", this.stack );
167                 } else if ( this.expected !== null && this.expected !== this.assertions.length ) {
168                         QUnit.pushFailure( "Expected " + this.expected + " assertions, but " + this.assertions.length + " were run", this.stack );
169                 } else if ( this.expected === null && !this.assertions.length ) {
170                         QUnit.pushFailure( "Expected at least one assertion, but none were run - call expect(0) to accept zero assertions.", this.stack );
171                 }
172
173                 var assertion, a, b, i, li, ol,
174                         test = this,
175                         good = 0,
176                         bad = 0,
177                         tests = id( "qunit-tests" );
178
179                 config.stats.all += this.assertions.length;
180                 config.moduleStats.all += this.assertions.length;
181
182                 if ( tests ) {
183                         ol = document.createElement( "ol" );
184                         ol.className = "qunit-assert-list";
185
186                         for ( i = 0; i < this.assertions.length; i++ ) {
187                                 assertion = this.assertions[i];
188
189                                 li = document.createElement( "li" );
190                                 li.className = assertion.result ? "pass" : "fail";
191                                 li.innerHTML = assertion.message || ( assertion.result ? "okay" : "failed" );
192                                 ol.appendChild( li );
193
194                                 if ( assertion.result ) {
195                                         good++;
196                                 } else {
197                                         bad++;
198                                         config.stats.bad++;
199                                         config.moduleStats.bad++;
200                                 }
201                         }
202
203                         // store result when possible
204                         if ( QUnit.config.reorder && defined.sessionStorage ) {
205                                 if ( bad ) {
206                                         sessionStorage.setItem( "qunit-test-" + this.module + "-" + this.testName, bad );
207                                 } else {
208                                         sessionStorage.removeItem( "qunit-test-" + this.module + "-" + this.testName );
209                                 }
210                         }
211
212                         if ( bad === 0 ) {
213                                 addClass( ol, "qunit-collapsed" );
214                         }
215
216                         // `b` initialized at top of scope
217                         b = document.createElement( "strong" );
218                         b.innerHTML = this.name + " <b class='counts'>(<b class='failed'>" + bad + "</b>, <b class='passed'>" + good + "</b>, " + this.assertions.length + ")</b>";
219
220                         addEvent(b, "click", function() {
221                                 var next = b.nextSibling.nextSibling,
222                                         collapsed = hasClass( next, "qunit-collapsed" );
223                                 ( collapsed ? removeClass : addClass )( next, "qunit-collapsed" );
224                         });
225
226                         addEvent(b, "dblclick", function( e ) {
227                                 var target = e && e.target ? e.target : window.event.srcElement;
228                                 if ( target.nodeName.toLowerCase() === "span" || target.nodeName.toLowerCase() === "b" ) {
229                                         target = target.parentNode;
230                                 }
231                                 if ( window.location && target.nodeName.toLowerCase() === "strong" ) {
232                                         window.location = QUnit.url({ testNumber: test.testNumber });
233                                 }
234                         });
235
236                         // `li` initialized at top of scope
237                         li = id( this.id );
238                         li.className = bad ? "fail" : "pass";
239                         li.removeChild( li.firstChild );
240                         a = li.firstChild;
241                         li.appendChild( b );
242                         li.appendChild ( a );
243                         li.appendChild( ol );
244
245                 } else {
246                         for ( i = 0; i < this.assertions.length; i++ ) {
247                                 if ( !this.assertions[i].result ) {
248                                         bad++;
249                                         config.stats.bad++;
250                                         config.moduleStats.bad++;
251                                 }
252                         }
253                 }
254
255                 runLoggingCallbacks( "testDone", QUnit, {
256                         name: this.testName,
257                         module: this.module,
258                         failed: bad,
259                         passed: this.assertions.length - bad,
260                         total: this.assertions.length
261                 });
262
263                 QUnit.reset();
264
265                 config.current = undefined;
266         },
267
268         queue: function() {
269                 var bad,
270                         test = this;
271
272                 synchronize(function() {
273                         test.init();
274                 });
275                 function run() {
276                         // each of these can by async
277                         synchronize(function() {
278                                 test.setup();
279                         });
280                         synchronize(function() {
281                                 test.run();
282                         });
283                         synchronize(function() {
284                                 test.teardown();
285                         });
286                         synchronize(function() {
287                                 test.finish();
288                         });
289                 }
290
291                 // `bad` initialized at top of scope
292                 // defer when previous test run passed, if storage is available
293                 bad = QUnit.config.reorder && defined.sessionStorage &&
294                                                 +sessionStorage.getItem( "qunit-test-" + this.module + "-" + this.testName );
295
296                 if ( bad ) {
297                         run();
298                 } else {
299                         synchronize( run, true );
300                 }
301         }
302 };
303
304 // Root QUnit object.
305 // `QUnit` initialized at top of scope
306 QUnit = {
307
308         // call on start of module test to prepend name to all tests
309         module: function( name, testEnvironment ) {
310                 config.currentModule = name;
311                 config.currentModuleTestEnvironment = testEnvironment;
312                 config.modules[name] = true;
313         },
314
315         asyncTest: function( testName, expected, callback ) {
316                 if ( arguments.length === 2 ) {
317                         callback = expected;
318                         expected = null;
319                 }
320
321                 QUnit.test( testName, expected, callback, true );
322         },
323
324         test: function( testName, expected, callback, async ) {
325                 var test,
326                         name = "<span class='test-name'>" + escapeInnerText( testName ) + "</span>";
327
328                 if ( arguments.length === 2 ) {
329                         callback = expected;
330                         expected = null;
331                 }
332
333                 if ( config.currentModule ) {
334                         name = "<span class='module-name'>" + config.currentModule + "</span>: " + name;
335                 }
336
337                 test = new Test({
338                         name: name,
339                         testName: testName,
340                         expected: expected,
341                         async: async,
342                         callback: callback,
343                         module: config.currentModule,
344                         moduleTestEnvironment: config.currentModuleTestEnvironment,
345                         stack: sourceFromStacktrace( 2 )
346                 });
347
348                 if ( !validTest( test ) ) {
349                         return;
350                 }
351
352                 test.queue();
353         },
354
355         // Specify the number of expected assertions to gurantee that failed test (no assertions are run at all) don't slip through.
356         expect: function( asserts ) {
357                 if (arguments.length === 1) {
358                         config.current.expected = asserts;
359                 } else {
360                         return config.current.expected;
361                 }
362         },
363
364         start: function( count ) {
365                 config.semaphore -= count || 1;
366                 // don't start until equal number of stop-calls
367                 if ( config.semaphore > 0 ) {
368                         return;
369                 }
370                 // ignore if start is called more often then stop
371                 if ( config.semaphore < 0 ) {
372                         config.semaphore = 0;
373                         QUnit.pushFailure( "Called start() while already started (QUnit.config.semaphore was 0 already)", null, sourceFromStacktrace(2) );
374                         return;
375                 }
376                 // A slight delay, to avoid any current callbacks
377                 if ( defined.setTimeout ) {
378                         window.setTimeout(function() {
379                                 if ( config.semaphore > 0 ) {
380                                         return;
381                                 }
382                                 if ( config.timeout ) {
383                                         clearTimeout( config.timeout );
384                                 }
385
386                                 config.blocking = false;
387                                 process( true );
388                         }, 13);
389                 } else {
390                         config.blocking = false;
391                         process( true );
392                 }
393         },
394
395         stop: function( count ) {
396                 config.semaphore += count || 1;
397                 config.blocking = true;
398
399                 if ( config.testTimeout && defined.setTimeout ) {
400                         clearTimeout( config.timeout );
401                         config.timeout = window.setTimeout(function() {
402                                 QUnit.ok( false, "Test timed out" );
403                                 config.semaphore = 1;
404                                 QUnit.start();
405                         }, config.testTimeout );
406                 }
407         }
408 };
409
410 // `assert` initialized at top of scope
411 // Asssert helpers
412 // All of these must either call QUnit.push() or manually do:
413 // - runLoggingCallbacks( "log", .. );
414 // - config.current.assertions.push({ .. });
415 // We attach it to the QUnit object *after* we expose the public API,
416 // otherwise `assert` will become a global variable in browsers (#341).
417 assert = {
418         /**
419          * Asserts rough true-ish result.
420          * @name ok
421          * @function
422          * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
423          */
424         ok: function( result, msg ) {
425                 if ( !config.current ) {
426                         throw new Error( "ok() assertion outside test context, was " + sourceFromStacktrace(2) );
427                 }
428                 result = !!result;
429
430                 var source,
431                         details = {
432                                 module: config.current.module,
433                                 name: config.current.testName,
434                                 result: result,
435                                 message: msg
436                         };
437
438                 msg = escapeInnerText( msg || (result ? "okay" : "failed" ) );
439                 msg = "<span class='test-message'>" + msg + "</span>";
440
441                 if ( !result ) {
442                         source = sourceFromStacktrace( 2 );
443                         if ( source ) {
444                                 details.source = source;
445                                 msg += "<table><tr class='test-source'><th>Source: </th><td><pre>" + escapeInnerText( source ) + "</pre></td></tr></table>";
446                         }
447                 }
448                 runLoggingCallbacks( "log", QUnit, details );
449                 config.current.assertions.push({
450                         result: result,
451                         message: msg
452                 });
453         },
454
455         /**
456          * Assert that the first two arguments are equal, with an optional message.
457          * Prints out both actual and expected values.
458          * @name equal
459          * @function
460          * @example equal( format( "Received {0} bytes.", 2), "Received 2 bytes.", "format() replaces {0} with next argument" );
461          */
462         equal: function( actual, expected, message ) {
463                 /*jshint eqeqeq:false */
464                 QUnit.push( expected == actual, actual, expected, message );
465         },
466
467         /**
468          * @name notEqual
469          * @function
470          */
471         notEqual: function( actual, expected, message ) {
472                 /*jshint eqeqeq:false */
473                 QUnit.push( expected != actual, actual, expected, message );
474         },
475
476         /**
477          * @name deepEqual
478          * @function
479          */
480         deepEqual: function( actual, expected, message ) {
481                 QUnit.push( QUnit.equiv(actual, expected), actual, expected, message );
482         },
483
484         /**
485          * @name notDeepEqual
486          * @function
487          */
488         notDeepEqual: function( actual, expected, message ) {
489                 QUnit.push( !QUnit.equiv(actual, expected), actual, expected, message );
490         },
491
492         /**
493          * @name strictEqual
494          * @function
495          */
496         strictEqual: function( actual, expected, message ) {
497                 QUnit.push( expected === actual, actual, expected, message );
498         },
499
500         /**
501          * @name notStrictEqual
502          * @function
503          */
504         notStrictEqual: function( actual, expected, message ) {
505                 QUnit.push( expected !== actual, actual, expected, message );
506         },
507
508         "throws": function( block, expected, message ) {
509                 var actual,
510                         expectedOutput = expected,
511                         ok = false;
512
513                 // 'expected' is optional
514                 if ( typeof expected === "string" ) {
515                         message = expected;
516                         expected = null;
517                 }
518
519                 config.current.ignoreGlobalErrors = true;
520                 try {
521                         block.call( config.current.testEnvironment );
522                 } catch (e) {
523                         actual = e;
524                 }
525                 config.current.ignoreGlobalErrors = false;
526
527                 if ( actual ) {
528                         // we don't want to validate thrown error
529                         if ( !expected ) {
530                                 ok = true;
531                                 expectedOutput = null;
532                         // expected is a regexp
533                         } else if ( QUnit.objectType( expected ) === "regexp" ) {
534                                 ok = expected.test( actual );
535                         // expected is a constructor
536                         } else if ( actual instanceof expected ) {
537                                 ok = true;
538                         // expected is a validation function which returns true is validation passed
539                         } else if ( expected.call( {}, actual ) === true ) {
540                                 expectedOutput = null;
541                                 ok = true;
542                         }
543
544                         QUnit.push( ok, actual, expectedOutput, message );
545                 } else {
546                         QUnit.pushFailure( message, null, 'No exception was thrown.' );
547                 }
548         }
549 };
550
551 /**
552  * @deprecate since 1.8.0
553  * Kept assertion helpers in root for backwards compatibility.
554  */
555 extend( QUnit, assert );
556
557 /**
558  * @deprecated since 1.9.0
559  * Kept root "raises()" for backwards compatibility.
560  * (Note that we don't introduce assert.raises).
561  */
562 QUnit.raises = assert[ "throws" ];
563
564 /**
565  * @deprecated since 1.0.0, replaced with error pushes since 1.3.0
566  * Kept to avoid TypeErrors for undefined methods.
567  */
568 QUnit.equals = function() {
569         QUnit.push( false, false, false, "QUnit.equals has been deprecated since 2009 (e88049a0), use QUnit.equal instead" );
570 };
571 QUnit.same = function() {
572         QUnit.push( false, false, false, "QUnit.same has been deprecated since 2009 (e88049a0), use QUnit.deepEqual instead" );
573 };
574
575 // We want access to the constructor's prototype
576 (function() {
577         function F() {}
578         F.prototype = QUnit;
579         QUnit = new F();
580         // Make F QUnit's constructor so that we can add to the prototype later
581         QUnit.constructor = F;
582 }());
583
584 /**
585  * Config object: Maintain internal state
586  * Later exposed as QUnit.config
587  * `config` initialized at top of scope
588  */
589 config = {
590         // The queue of tests to run
591         queue: [],
592
593         // block until document ready
594         blocking: true,
595
596         // when enabled, show only failing tests
597         // gets persisted through sessionStorage and can be changed in UI via checkbox
598         hidepassed: false,
599
600         // by default, run previously failed tests first
601         // very useful in combination with "Hide passed tests" checked
602         reorder: true,
603
604         // by default, modify document.title when suite is done
605         altertitle: true,
606
607         // when enabled, all tests must call expect()
608         requireExpects: false,
609
610         // add checkboxes that are persisted in the query-string
611         // when enabled, the id is set to `true` as a `QUnit.config` property
612         urlConfig: [
613                 {
614                         id: "noglobals",
615                         label: "Check for Globals",
616                         tooltip: "Enabling this will test if any test introduces new properties on the `window` object. Stored as query-strings."
617                 },
618                 {
619                         id: "notrycatch",
620                         label: "No try-catch",
621                         tooltip: "Enabling this will run tests outside of a try-catch block. Makes debugging exceptions in IE reasonable. Stored as query-strings."
622                 }
623         ],
624
625         // Set of all modules.
626         modules: {},
627
628         // logging callback queues
629         begin: [],
630         done: [],
631         log: [],
632         testStart: [],
633         testDone: [],
634         moduleStart: [],
635         moduleDone: []
636 };
637
638 // Initialize more QUnit.config and QUnit.urlParams
639 (function() {
640         var i,
641                 location = window.location || { search: "", protocol: "file:" },
642                 params = location.search.slice( 1 ).split( "&" ),
643                 length = params.length,
644                 urlParams = {},
645                 current;
646
647         if ( params[ 0 ] ) {
648                 for ( i = 0; i < length; i++ ) {
649                         current = params[ i ].split( "=" );
650                         current[ 0 ] = decodeURIComponent( current[ 0 ] );
651                         // allow just a key to turn on a flag, e.g., test.html?noglobals
652                         current[ 1 ] = current[ 1 ] ? decodeURIComponent( current[ 1 ] ) : true;
653                         urlParams[ current[ 0 ] ] = current[ 1 ];
654                 }
655         }
656
657         QUnit.urlParams = urlParams;
658
659         // String search anywhere in moduleName+testName
660         config.filter = urlParams.filter;
661
662         // Exact match of the module name
663         config.module = urlParams.module;
664
665         config.testNumber = parseInt( urlParams.testNumber, 10 ) || null;
666
667         // Figure out if we're running the tests from a server or not
668         QUnit.isLocal = location.protocol === "file:";
669 }());
670
671 // Export global variables, unless an 'exports' object exists,
672 // in that case we assume we're in CommonJS (dealt with on the bottom of the script)
673 if ( typeof exports === "undefined" ) {
674         extend( window, QUnit );
675
676         // Expose QUnit object
677         window.QUnit = QUnit;
678 }
679
680 // Extend QUnit object,
681 // these after set here because they should not be exposed as global functions
682 extend( QUnit, {
683         assert: assert,
684
685         config: config,
686
687         // Initialize the configuration options
688         init: function() {
689                 extend( config, {
690                         stats: { all: 0, bad: 0 },
691                         moduleStats: { all: 0, bad: 0 },
692                         started: +new Date(),
693                         updateRate: 1000,
694                         blocking: false,
695                         autostart: true,
696                         autorun: false,
697                         filter: "",
698                         queue: [],
699                         semaphore: 1
700                 });
701
702                 var tests, banner, result,
703                         qunit = id( "qunit" );
704
705                 if ( qunit ) {
706                         qunit.innerHTML =
707                                 "<h1 id='qunit-header'>" + escapeInnerText( document.title ) + "</h1>" +
708                                 "<h2 id='qunit-banner'></h2>" +
709                                 "<div id='qunit-testrunner-toolbar'></div>" +
710                                 "<h2 id='qunit-userAgent'></h2>" +
711                                 "<ol id='qunit-tests'></ol>";
712                 }
713
714                 tests = id( "qunit-tests" );
715                 banner = id( "qunit-banner" );
716                 result = id( "qunit-testresult" );
717
718                 if ( tests ) {
719                         tests.innerHTML = "";
720                 }
721
722                 if ( banner ) {
723                         banner.className = "";
724                 }
725
726                 if ( result ) {
727                         result.parentNode.removeChild( result );
728                 }
729
730                 if ( tests ) {
731                         result = document.createElement( "p" );
732                         result.id = "qunit-testresult";
733                         result.className = "result";
734                         tests.parentNode.insertBefore( result, tests );
735                         result.innerHTML = "Running...<br/>&nbsp;";
736                 }
737         },
738
739         // Resets the test setup. Useful for tests that modify the DOM.
740         reset: function() {
741                 var fixture = id( "qunit-fixture" );
742                 if ( fixture ) {
743                         fixture.innerHTML = config.fixture;
744                 }
745         },
746
747         // Trigger an event on an element.
748         // @example triggerEvent( document.body, "click" );
749         triggerEvent: function( elem, type, event ) {
750                 if ( document.createEvent ) {
751                         event = document.createEvent( "MouseEvents" );
752                         event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
753                                 0, 0, 0, 0, 0, false, false, false, false, 0, null);
754
755                         elem.dispatchEvent( event );
756                 } else if ( elem.fireEvent ) {
757                         elem.fireEvent( "on" + type );
758                 }
759         },
760
761         // Safe object type checking
762         is: function( type, obj ) {
763                 return QUnit.objectType( obj ) === type;
764         },
765
766         objectType: function( obj ) {
767                 if ( typeof obj === "undefined" ) {
768                                 return "undefined";
769                 // consider: typeof null === object
770                 }
771                 if ( obj === null ) {
772                                 return "null";
773                 }
774
775                 var match = toString.call( obj ).match(/^\[object\s(.*)\]$/),
776                         type = match && match[1] || "";
777
778                 switch ( type ) {
779                         case "Number":
780                                 if ( isNaN(obj) ) {
781                                         return "nan";
782                                 }
783                                 return "number";
784                         case "String":
785                         case "Boolean":
786                         case "Array":
787                         case "Date":
788                         case "RegExp":
789                         case "Function":
790                                 return type.toLowerCase();
791                 }
792                 if ( typeof obj === "object" ) {
793                         return "object";
794                 }
795                 return undefined;
796         },
797
798         push: function( result, actual, expected, message ) {
799                 if ( !config.current ) {
800                         throw new Error( "assertion outside test context, was " + sourceFromStacktrace() );
801                 }
802
803                 var output, source,
804                         details = {
805                                 module: config.current.module,
806                                 name: config.current.testName,
807                                 result: result,
808                                 message: message,
809                                 actual: actual,
810                                 expected: expected
811                         };
812
813                 message = escapeInnerText( message ) || ( result ? "okay" : "failed" );
814                 message = "<span class='test-message'>" + message + "</span>";
815                 output = message;
816
817                 if ( !result ) {
818                         expected = escapeInnerText( QUnit.jsDump.parse(expected) );
819                         actual = escapeInnerText( QUnit.jsDump.parse(actual) );
820                         output += "<table><tr class='test-expected'><th>Expected: </th><td><pre>" + expected + "</pre></td></tr>";
821
822                         if ( actual !== expected ) {
823                                 output += "<tr class='test-actual'><th>Result: </th><td><pre>" + actual + "</pre></td></tr>";
824                                 output += "<tr class='test-diff'><th>Diff: </th><td><pre>" + QUnit.diff( expected, actual ) + "</pre></td></tr>";
825                         }
826
827                         source = sourceFromStacktrace();
828
829                         if ( source ) {
830                                 details.source = source;
831                                 output += "<tr class='test-source'><th>Source: </th><td><pre>" + escapeInnerText( source ) + "</pre></td></tr>";
832                         }
833
834                         output += "</table>";
835                 }
836
837                 runLoggingCallbacks( "log", QUnit, details );
838
839                 config.current.assertions.push({
840                         result: !!result,
841                         message: output
842                 });
843         },
844
845         pushFailure: function( message, source, actual ) {
846                 if ( !config.current ) {
847                         throw new Error( "pushFailure() assertion outside test context, was " + sourceFromStacktrace(2) );
848                 }
849
850                 var output,
851                         details = {
852                                 module: config.current.module,
853                                 name: config.current.testName,
854                                 result: false,
855                                 message: message
856                         };
857
858                 message = escapeInnerText( message ) || "error";
859                 message = "<span class='test-message'>" + message + "</span>";
860                 output = message;
861
862                 output += "<table>";
863
864                 if ( actual ) {
865                         output += "<tr class='test-actual'><th>Result: </th><td><pre>" + escapeInnerText( actual ) + "</pre></td></tr>";
866                 }
867
868                 if ( source ) {
869                         details.source = source;
870                         output += "<tr class='test-source'><th>Source: </th><td><pre>" + escapeInnerText( source ) + "</pre></td></tr>";
871                 }
872
873                 output += "</table>";
874
875                 runLoggingCallbacks( "log", QUnit, details );
876
877                 config.current.assertions.push({
878                         result: false,
879                         message: output
880                 });
881         },
882
883         url: function( params ) {
884                 params = extend( extend( {}, QUnit.urlParams ), params );
885                 var key,
886                         querystring = "?";
887
888                 for ( key in params ) {
889                         if ( !hasOwn.call( params, key ) ) {
890                                 continue;
891                         }
892                         querystring += encodeURIComponent( key ) + "=" +
893                                 encodeURIComponent( params[ key ] ) + "&";
894                 }
895                 return window.location.pathname + querystring.slice( 0, -1 );
896         },
897
898         extend: extend,
899         id: id,
900         addEvent: addEvent
901         // load, equiv, jsDump, diff: Attached later
902 });
903
904 /**
905  * @deprecated: Created for backwards compatibility with test runner that set the hook function
906  * into QUnit.{hook}, instead of invoking it and passing the hook function.
907  * QUnit.constructor is set to the empty F() above so that we can add to it's prototype here.
908  * Doing this allows us to tell if the following methods have been overwritten on the actual
909  * QUnit object.
910  */
911 extend( QUnit.constructor.prototype, {
912
913         // Logging callbacks; all receive a single argument with the listed properties
914         // run test/logs.html for any related changes
915         begin: registerLoggingCallback( "begin" ),
916
917         // done: { failed, passed, total, runtime }
918         done: registerLoggingCallback( "done" ),
919
920         // log: { result, actual, expected, message }
921         log: registerLoggingCallback( "log" ),
922
923         // testStart: { name }
924         testStart: registerLoggingCallback( "testStart" ),
925
926         // testDone: { name, failed, passed, total }
927         testDone: registerLoggingCallback( "testDone" ),
928
929         // moduleStart: { name }
930         moduleStart: registerLoggingCallback( "moduleStart" ),
931
932         // moduleDone: { name, failed, passed, total }
933         moduleDone: registerLoggingCallback( "moduleDone" )
934 });
935
936 if ( typeof document === "undefined" || document.readyState === "complete" ) {
937         config.autorun = true;
938 }
939
940 QUnit.load = function() {
941         runLoggingCallbacks( "begin", QUnit, {} );
942
943         // Initialize the config, saving the execution queue
944         var banner, filter, i, label, len, main, ol, toolbar, userAgent, val, urlConfigCheckboxes, moduleFilter,
945             numModules = 0,
946             moduleFilterHtml = "",
947                 urlConfigHtml = "",
948                 oldconfig = extend( {}, config );
949
950         QUnit.init();
951         extend(config, oldconfig);
952
953         config.blocking = false;
954
955         len = config.urlConfig.length;
956
957         for ( i = 0; i < len; i++ ) {
958                 val = config.urlConfig[i];
959                 if ( typeof val === "string" ) {
960                         val = {
961                                 id: val,
962                                 label: val,
963                                 tooltip: "[no tooltip available]"
964                         };
965                 }
966                 config[ val.id ] = QUnit.urlParams[ val.id ];
967                 urlConfigHtml += "<input id='qunit-urlconfig-" + val.id + "' name='" + val.id + "' type='checkbox'" + ( config[ val.id ] ? " checked='checked'" : "" ) + " title='" + val.tooltip + "'><label for='qunit-urlconfig-" + val.id + "' title='" + val.tooltip + "'>" + val.label + "</label>";
968         }
969
970         moduleFilterHtml += "<label for='qunit-modulefilter'>Module: </label><select id='qunit-modulefilter' name='modulefilter'><option value='' " + ( config.module === undefined  ? "selected" : "" ) + ">< All Modules ></option>";
971         for ( i in config.modules ) {
972                 if ( config.modules.hasOwnProperty( i ) ) {
973                         numModules += 1;
974                         moduleFilterHtml += "<option value='" + encodeURIComponent(i) + "' " + ( config.module === i ? "selected" : "" ) + ">" + i + "</option>";
975                 }
976         }
977         moduleFilterHtml += "</select>";
978
979         // `userAgent` initialized at top of scope
980         userAgent = id( "qunit-userAgent" );
981         if ( userAgent ) {
982                 userAgent.innerHTML = navigator.userAgent;
983         }
984
985         // `banner` initialized at top of scope
986         banner = id( "qunit-header" );
987         if ( banner ) {
988                 banner.innerHTML = "<a href='" + QUnit.url({ filter: undefined, module: undefined, testNumber: undefined }) + "'>" + banner.innerHTML + "</a> ";
989         }
990
991         // `toolbar` initialized at top of scope
992         toolbar = id( "qunit-testrunner-toolbar" );
993         if ( toolbar ) {
994                 // `filter` initialized at top of scope
995                 filter = document.createElement( "input" );
996                 filter.type = "checkbox";
997                 filter.id = "qunit-filter-pass";
998
999                 addEvent( filter, "click", function() {
1000                         var tmp,
1001                                 ol = document.getElementById( "qunit-tests" );
1002
1003                         if ( filter.checked ) {
1004                                 ol.className = ol.className + " hidepass";
1005                         } else {
1006                                 tmp = " " + ol.className.replace( /[\n\t\r]/g, " " ) + " ";
1007                                 ol.className = tmp.replace( / hidepass /, " " );
1008                         }
1009                         if ( defined.sessionStorage ) {
1010                                 if (filter.checked) {
1011                                         sessionStorage.setItem( "qunit-filter-passed-tests", "true" );
1012                                 } else {
1013                                         sessionStorage.removeItem( "qunit-filter-passed-tests" );
1014                                 }
1015                         }
1016                 });
1017
1018                 if ( config.hidepassed || defined.sessionStorage && sessionStorage.getItem( "qunit-filter-passed-tests" ) ) {
1019                         filter.checked = true;
1020                         // `ol` initialized at top of scope
1021                         ol = document.getElementById( "qunit-tests" );
1022                         ol.className = ol.className + " hidepass";
1023                 }
1024                 toolbar.appendChild( filter );
1025
1026                 // `label` initialized at top of scope
1027                 label = document.createElement( "label" );
1028                 label.setAttribute( "for", "qunit-filter-pass" );
1029                 label.setAttribute( "title", "Only show tests and assertons that fail. Stored in sessionStorage." );
1030                 label.innerHTML = "Hide passed tests";
1031                 toolbar.appendChild( label );
1032
1033                 urlConfigCheckboxes = document.createElement( 'span' );
1034                 urlConfigCheckboxes.innerHTML = urlConfigHtml;
1035                 addEvent( urlConfigCheckboxes, "change", function( event ) {
1036                         var params = {};
1037                         params[ event.target.name ] = event.target.checked ? true : undefined;
1038                         window.location = QUnit.url( params );
1039                 });
1040                 toolbar.appendChild( urlConfigCheckboxes );
1041
1042                 if (numModules > 1) {
1043                         moduleFilter = document.createElement( 'span' );
1044                         moduleFilter.setAttribute( 'id', 'qunit-modulefilter-container' );
1045                         moduleFilter.innerHTML = moduleFilterHtml;
1046                         addEvent( moduleFilter, "change", function() {
1047                                 var selectBox = moduleFilter.getElementsByTagName("select")[0],
1048                                     selectedModule = decodeURIComponent(selectBox.options[selectBox.selectedIndex].value);
1049
1050                                 window.location = QUnit.url( { module: ( selectedModule === "" ) ? undefined : selectedModule } );
1051                         });
1052                         toolbar.appendChild(moduleFilter);
1053                 }
1054         }
1055
1056         // `main` initialized at top of scope
1057         main = id( "qunit-fixture" );
1058         if ( main ) {
1059                 config.fixture = main.innerHTML;
1060         }
1061
1062         if ( config.autostart ) {
1063                 QUnit.start();
1064         }
1065 };
1066
1067 addEvent( window, "load", QUnit.load );
1068
1069 // `onErrorFnPrev` initialized at top of scope
1070 // Preserve other handlers
1071 onErrorFnPrev = window.onerror;
1072
1073 // Cover uncaught exceptions
1074 // Returning true will surpress the default browser handler,
1075 // returning false will let it run.
1076 window.onerror = function ( error, filePath, linerNr ) {
1077         var ret = false;
1078         if ( onErrorFnPrev ) {
1079                 ret = onErrorFnPrev( error, filePath, linerNr );
1080         }
1081
1082         // Treat return value as window.onerror itself does,
1083         // Only do our handling if not surpressed.
1084         if ( ret !== true ) {
1085                 if ( QUnit.config.current ) {
1086                         if ( QUnit.config.current.ignoreGlobalErrors ) {
1087                                 return true;
1088                         }
1089                         QUnit.pushFailure( error, filePath + ":" + linerNr );
1090                 } else {
1091                         QUnit.test( "global failure", extend( function() {
1092                                 QUnit.pushFailure( error, filePath + ":" + linerNr );
1093                         }, { validTest: validTest } ) );
1094                 }
1095                 return false;
1096         }
1097
1098         return ret;
1099 };
1100
1101 function done() {
1102         config.autorun = true;
1103
1104         // Log the last module results
1105         if ( config.currentModule ) {
1106                 runLoggingCallbacks( "moduleDone", QUnit, {
1107                         name: config.currentModule,
1108                         failed: config.moduleStats.bad,
1109                         passed: config.moduleStats.all - config.moduleStats.bad,
1110                         total: config.moduleStats.all
1111                 });
1112         }
1113
1114         var i, key,
1115                 banner = id( "qunit-banner" ),
1116                 tests = id( "qunit-tests" ),
1117                 runtime = +new Date() - config.started,
1118                 passed = config.stats.all - config.stats.bad,
1119                 html = [
1120                         "Tests completed in ",
1121                         runtime,
1122                         " milliseconds.<br/>",
1123                         "<span class='passed'>",
1124                         passed,
1125                         "</span> tests of <span class='total'>",
1126                         config.stats.all,
1127                         "</span> passed, <span class='failed'>",
1128                         config.stats.bad,
1129                         "</span> failed."
1130                 ].join( "" );
1131
1132         if ( banner ) {
1133                 banner.className = ( config.stats.bad ? "qunit-fail" : "qunit-pass" );
1134         }
1135
1136         if ( tests ) {
1137                 id( "qunit-testresult" ).innerHTML = html;
1138         }
1139
1140         if ( config.altertitle && typeof document !== "undefined" && document.title ) {
1141                 // show ✖ for good, ✔ for bad suite result in title
1142                 // use escape sequences in case file gets loaded with non-utf-8-charset
1143                 document.title = [
1144                         ( config.stats.bad ? "\u2716" : "\u2714" ),
1145                         document.title.replace( /^[\u2714\u2716] /i, "" )
1146                 ].join( " " );
1147         }
1148
1149         // clear own sessionStorage items if all tests passed
1150         if ( config.reorder && defined.sessionStorage && config.stats.bad === 0 ) {
1151                 // `key` & `i` initialized at top of scope
1152                 for ( i = 0; i < sessionStorage.length; i++ ) {
1153                         key = sessionStorage.key( i++ );
1154                         if ( key.indexOf( "qunit-test-" ) === 0 ) {
1155                                 sessionStorage.removeItem( key );
1156                         }
1157                 }
1158         }
1159
1160         // scroll back to top to show results
1161         if ( window.scrollTo ) {
1162                 window.scrollTo(0, 0);
1163         }
1164
1165         runLoggingCallbacks( "done", QUnit, {
1166                 failed: config.stats.bad,
1167                 passed: passed,
1168                 total: config.stats.all,
1169                 runtime: runtime
1170         });
1171 }
1172
1173 /** @return Boolean: true if this test should be ran */
1174 function validTest( test ) {
1175         var include,
1176                 filter = config.filter && config.filter.toLowerCase(),
1177                 module = config.module && config.module.toLowerCase(),
1178                 fullName = (test.module + ": " + test.testName).toLowerCase();
1179
1180         // Internally-generated tests are always valid
1181         if ( test.callback && test.callback.validTest === validTest ) {
1182                 delete test.callback.validTest;
1183                 return true;
1184         }
1185
1186         if ( config.testNumber ) {
1187                 return test.testNumber === config.testNumber;
1188         }
1189
1190         if ( module && ( !test.module || test.module.toLowerCase() !== module ) ) {
1191                 return false;
1192         }
1193
1194         if ( !filter ) {
1195                 return true;
1196         }
1197
1198         include = filter.charAt( 0 ) !== "!";
1199         if ( !include ) {
1200                 filter = filter.slice( 1 );
1201         }
1202
1203         // If the filter matches, we need to honour include
1204         if ( fullName.indexOf( filter ) !== -1 ) {
1205                 return include;
1206         }
1207
1208         // Otherwise, do the opposite
1209         return !include;
1210 }
1211
1212 // so far supports only Firefox, Chrome and Opera (buggy), Safari (for real exceptions)
1213 // Later Safari and IE10 are supposed to support error.stack as well
1214 // See also https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
1215 function extractStacktrace( e, offset ) {
1216         offset = offset === undefined ? 3 : offset;
1217
1218         var stack, include, i, regex;
1219
1220         if ( e.stacktrace ) {
1221                 // Opera
1222                 return e.stacktrace.split( "\n" )[ offset + 3 ];
1223         } else if ( e.stack ) {
1224                 // Firefox, Chrome
1225                 stack = e.stack.split( "\n" );
1226                 if (/^error$/i.test( stack[0] ) ) {
1227                         stack.shift();
1228                 }
1229                 if ( fileName ) {
1230                         include = [];
1231                         for ( i = offset; i < stack.length; i++ ) {
1232                                 if ( stack[ i ].indexOf( fileName ) !== -1 ) {
1233                                         break;
1234                                 }
1235                                 include.push( stack[ i ] );
1236                         }
1237                         if ( include.length ) {
1238                                 return include.join( "\n" );
1239                         }
1240                 }
1241                 return stack[ offset ];
1242         } else if ( e.sourceURL ) {
1243                 // Safari, PhantomJS
1244                 // hopefully one day Safari provides actual stacktraces
1245                 // exclude useless self-reference for generated Error objects
1246                 if ( /qunit.js$/.test( e.sourceURL ) ) {
1247                         return;
1248                 }
1249                 // for actual exceptions, this is useful
1250                 return e.sourceURL + ":" + e.line;
1251         }
1252 }
1253 function sourceFromStacktrace( offset ) {
1254         try {
1255                 throw new Error();
1256         } catch ( e ) {
1257                 return extractStacktrace( e, offset );
1258         }
1259 }
1260
1261 function escapeInnerText( s ) {
1262         if ( !s ) {
1263                 return "";
1264         }
1265         s = s + "";
1266         return s.replace( /[\&<>]/g, function( s ) {
1267                 switch( s ) {
1268                         case "&": return "&amp;";
1269                         case "<": return "&lt;";
1270                         case ">": return "&gt;";
1271                         default: return s;
1272                 }
1273         });
1274 }
1275
1276 function synchronize( callback, last ) {
1277         config.queue.push( callback );
1278
1279         if ( config.autorun && !config.blocking ) {
1280                 process( last );
1281         }
1282 }
1283
1284 function process( last ) {
1285         function next() {
1286                 process( last );
1287         }
1288         var start = new Date().getTime();
1289         config.depth = config.depth ? config.depth + 1 : 1;
1290
1291         while ( config.queue.length && !config.blocking ) {
1292                 if ( !defined.setTimeout || config.updateRate <= 0 || ( ( new Date().getTime() - start ) < config.updateRate ) ) {
1293                         config.queue.shift()();
1294                 } else {
1295                         window.setTimeout( next, 13 );
1296                         break;
1297                 }
1298         }
1299         config.depth--;
1300         if ( last && !config.blocking && !config.queue.length && config.depth === 0 ) {
1301                 done();
1302         }
1303 }
1304
1305 function saveGlobal() {
1306         config.pollution = [];
1307
1308         if ( config.noglobals ) {
1309                 for ( var key in window ) {
1310                         // in Opera sometimes DOM element ids show up here, ignore them
1311                         if ( !hasOwn.call( window, key ) || /^qunit-test-output/.test( key ) ) {
1312                                 continue;
1313                         }
1314                         config.pollution.push( key );
1315                 }
1316         }
1317 }
1318
1319 function checkPollution( name ) {
1320         var newGlobals,
1321                 deletedGlobals,
1322                 old = config.pollution;
1323
1324         saveGlobal();
1325
1326         newGlobals = diff( config.pollution, old );
1327         if ( newGlobals.length > 0 ) {
1328                 QUnit.pushFailure( "Introduced global variable(s): " + newGlobals.join(", ") );
1329         }
1330
1331         deletedGlobals = diff( old, config.pollution );
1332         if ( deletedGlobals.length > 0 ) {
1333                 QUnit.pushFailure( "Deleted global variable(s): " + deletedGlobals.join(", ") );
1334         }
1335 }
1336
1337 // returns a new Array with the elements that are in a but not in b
1338 function diff( a, b ) {
1339         var i, j,
1340                 result = a.slice();
1341
1342         for ( i = 0; i < result.length; i++ ) {
1343                 for ( j = 0; j < b.length; j++ ) {
1344                         if ( result[i] === b[j] ) {
1345                                 result.splice( i, 1 );
1346                                 i--;
1347                                 break;
1348                         }
1349                 }
1350         }
1351         return result;
1352 }
1353
1354 function extend( a, b ) {
1355         for ( var prop in b ) {
1356                 if ( b[ prop ] === undefined ) {
1357                         delete a[ prop ];
1358
1359                 // Avoid "Member not found" error in IE8 caused by setting window.constructor
1360                 } else if ( prop !== "constructor" || a !== window ) {
1361                         a[ prop ] = b[ prop ];
1362                 }
1363         }
1364
1365         return a;
1366 }
1367
1368 function addEvent( elem, type, fn ) {
1369         if ( elem.addEventListener ) {
1370                 elem.addEventListener( type, fn, false );
1371         } else if ( elem.attachEvent ) {
1372                 elem.attachEvent( "on" + type, fn );
1373         } else {
1374                 fn();
1375         }
1376 }
1377
1378 function hasClass( elem, name ) {
1379         return (" " + elem.className + " ").indexOf(" " + name + " ") > -1;
1380 }
1381
1382 function addClass( elem, name ) {
1383         if ( !hasClass( elem, name ) ) {
1384                 elem.className += (elem.className ? " " : "") + name;
1385         }
1386 }
1387
1388 function removeClass( elem, name ) {
1389         var set = " " + elem.className + " ";
1390         // Class name may appear multiple times
1391         while ( set.indexOf(" " + name + " ") > -1 ) {
1392                 set = set.replace(" " + name + " " , " ");
1393         }
1394         // If possible, trim it for prettiness, but not neccecarily
1395         elem.className = window.jQuery ? jQuery.trim( set ) : ( set.trim ? set.trim() : set );
1396 }
1397
1398 function id( name ) {
1399         return !!( typeof document !== "undefined" && document && document.getElementById ) &&
1400                 document.getElementById( name );
1401 }
1402
1403 function registerLoggingCallback( key ) {
1404         return function( callback ) {
1405                 config[key].push( callback );
1406         };
1407 }
1408
1409 // Supports deprecated method of completely overwriting logging callbacks
1410 function runLoggingCallbacks( key, scope, args ) {
1411         //debugger;
1412         var i, callbacks;
1413         if ( QUnit.hasOwnProperty( key ) ) {
1414                 QUnit[ key ].call(scope, args );
1415         } else {
1416                 callbacks = config[ key ];
1417                 for ( i = 0; i < callbacks.length; i++ ) {
1418                         callbacks[ i ].call( scope, args );
1419                 }
1420         }
1421 }
1422
1423 // Test for equality any JavaScript type.
1424 // Author: Philippe Rathé <prathe@gmail.com>
1425 QUnit.equiv = (function() {
1426
1427         // Call the o related callback with the given arguments.
1428         function bindCallbacks( o, callbacks, args ) {
1429                 var prop = QUnit.objectType( o );
1430                 if ( prop ) {
1431                         if ( QUnit.objectType( callbacks[ prop ] ) === "function" ) {
1432                                 return callbacks[ prop ].apply( callbacks, args );
1433                         } else {
1434                                 return callbacks[ prop ]; // or undefined
1435                         }
1436                 }
1437         }
1438
1439         // the real equiv function
1440         var innerEquiv,
1441                 // stack to decide between skip/abort functions
1442                 callers = [],
1443                 // stack to avoiding loops from circular referencing
1444                 parents = [],
1445
1446                 getProto = Object.getPrototypeOf || function ( obj ) {
1447                         return obj.__proto__;
1448                 },
1449                 callbacks = (function () {
1450
1451                         // for string, boolean, number and null
1452                         function useStrictEquality( b, a ) {
1453                                 /*jshint eqeqeq:false */
1454                                 if ( b instanceof a.constructor || a instanceof b.constructor ) {
1455                                         // to catch short annotaion VS 'new' annotation of a
1456                                         // declaration
1457                                         // e.g. var i = 1;
1458                                         // var j = new Number(1);
1459                                         return a == b;
1460                                 } else {
1461                                         return a === b;
1462                                 }
1463                         }
1464
1465                         return {
1466                                 "string": useStrictEquality,
1467                                 "boolean": useStrictEquality,
1468                                 "number": useStrictEquality,
1469                                 "null": useStrictEquality,
1470                                 "undefined": useStrictEquality,
1471
1472                                 "nan": function( b ) {
1473                                         return isNaN( b );
1474                                 },
1475
1476                                 "date": function( b, a ) {
1477                                         return QUnit.objectType( b ) === "date" && a.valueOf() === b.valueOf();
1478                                 },
1479
1480                                 "regexp": function( b, a ) {
1481                                         return QUnit.objectType( b ) === "regexp" &&
1482                                                 // the regex itself
1483                                                 a.source === b.source &&
1484                                                 // and its modifers
1485                                                 a.global === b.global &&
1486                                                 // (gmi) ...
1487                                                 a.ignoreCase === b.ignoreCase &&
1488                                                 a.multiline === b.multiline &&
1489                                                 a.sticky === b.sticky;
1490                                 },
1491
1492                                 // - skip when the property is a method of an instance (OOP)
1493                                 // - abort otherwise,
1494                                 // initial === would have catch identical references anyway
1495                                 "function": function() {
1496                                         var caller = callers[callers.length - 1];
1497                                         return caller !== Object && typeof caller !== "undefined";
1498                                 },
1499
1500                                 "array": function( b, a ) {
1501                                         var i, j, len, loop;
1502
1503                                         // b could be an object literal here
1504                                         if ( QUnit.objectType( b ) !== "array" ) {
1505                                                 return false;
1506                                         }
1507
1508                                         len = a.length;
1509                                         if ( len !== b.length ) {
1510                                                 // safe and faster
1511                                                 return false;
1512                                         }
1513
1514                                         // track reference to avoid circular references
1515                                         parents.push( a );
1516                                         for ( i = 0; i < len; i++ ) {
1517                                                 loop = false;
1518                                                 for ( j = 0; j < parents.length; j++ ) {
1519                                                         if ( parents[j] === a[i] ) {
1520                                                                 loop = true;// dont rewalk array
1521                                                         }
1522                                                 }
1523                                                 if ( !loop && !innerEquiv(a[i], b[i]) ) {
1524                                                         parents.pop();
1525                                                         return false;
1526                                                 }
1527                                         }
1528                                         parents.pop();
1529                                         return true;
1530                                 },
1531
1532                                 "object": function( b, a ) {
1533                                         var i, j, loop,
1534                                                 // Default to true
1535                                                 eq = true,
1536                                                 aProperties = [],
1537                                                 bProperties = [];
1538
1539                                         // comparing constructors is more strict than using
1540                                         // instanceof
1541                                         if ( a.constructor !== b.constructor ) {
1542                                                 // Allow objects with no prototype to be equivalent to
1543                                                 // objects with Object as their constructor.
1544                                                 if ( !(( getProto(a) === null && getProto(b) === Object.prototype ) ||
1545                                                         ( getProto(b) === null && getProto(a) === Object.prototype ) ) ) {
1546                                                                 return false;
1547                                                 }
1548                                         }
1549
1550                                         // stack constructor before traversing properties
1551                                         callers.push( a.constructor );
1552                                         // track reference to avoid circular references
1553                                         parents.push( a );
1554
1555                                         for ( i in a ) { // be strict: don't ensures hasOwnProperty
1556                                                                         // and go deep
1557                                                 loop = false;
1558                                                 for ( j = 0; j < parents.length; j++ ) {
1559                                                         if ( parents[j] === a[i] ) {
1560                                                                 // don't go down the same path twice
1561                                                                 loop = true;
1562                                                         }
1563                                                 }
1564                                                 aProperties.push(i); // collect a's properties
1565
1566                                                 if (!loop && !innerEquiv( a[i], b[i] ) ) {
1567                                                         eq = false;
1568                                                         break;
1569                                                 }
1570                                         }
1571
1572                                         callers.pop(); // unstack, we are done
1573                                         parents.pop();
1574
1575                                         for ( i in b ) {
1576                                                 bProperties.push( i ); // collect b's properties
1577                                         }
1578
1579                                         // Ensures identical properties name
1580                                         return eq && innerEquiv( aProperties.sort(), bProperties.sort() );
1581                                 }
1582                         };
1583                 }());
1584
1585         innerEquiv = function() { // can take multiple arguments
1586                 var args = [].slice.apply( arguments );
1587                 if ( args.length < 2 ) {
1588                         return true; // end transition
1589                 }
1590
1591                 return (function( a, b ) {
1592                         if ( a === b ) {
1593                                 return true; // catch the most you can
1594                         } else if ( a === null || b === null || typeof a === "undefined" ||
1595                                         typeof b === "undefined" ||
1596                                         QUnit.objectType(a) !== QUnit.objectType(b) ) {
1597                                 return false; // don't lose time with error prone cases
1598                         } else {
1599                                 return bindCallbacks(a, callbacks, [ b, a ]);
1600                         }
1601
1602                         // apply transition with (1..n) arguments
1603                 }( args[0], args[1] ) && arguments.callee.apply( this, args.splice(1, args.length - 1 )) );
1604         };
1605
1606         return innerEquiv;
1607 }());
1608
1609 /**
1610  * jsDump Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com |
1611  * http://flesler.blogspot.com Licensed under BSD
1612  * (http://www.opensource.org/licenses/bsd-license.php) Date: 5/15/2008
1613  *
1614  * @projectDescription Advanced and extensible data dumping for Javascript.
1615  * @version 1.0.0
1616  * @author Ariel Flesler
1617  * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
1618  */
1619 QUnit.jsDump = (function() {
1620         function quote( str ) {
1621                 return '"' + str.toString().replace( /"/g, '\\"' ) + '"';
1622         }
1623         function literal( o ) {
1624                 return o + "";
1625         }
1626         function join( pre, arr, post ) {
1627                 var s = jsDump.separator(),
1628                         base = jsDump.indent(),
1629                         inner = jsDump.indent(1);
1630                 if ( arr.join ) {
1631                         arr = arr.join( "," + s + inner );
1632                 }
1633                 if ( !arr ) {
1634                         return pre + post;
1635                 }
1636                 return [ pre, inner + arr, base + post ].join(s);
1637         }
1638         function array( arr, stack ) {
1639                 var i = arr.length, ret = new Array(i);
1640                 this.up();
1641                 while ( i-- ) {
1642                         ret[i] = this.parse( arr[i] , undefined , stack);
1643                 }
1644                 this.down();
1645                 return join( "[", ret, "]" );
1646         }
1647
1648         var reName = /^function (\w+)/,
1649                 jsDump = {
1650                         // type is used mostly internally, you can fix a (custom)type in advance
1651                         parse: function( obj, type, stack ) {
1652                                 stack = stack || [ ];
1653                                 var inStack, res,
1654                                         parser = this.parsers[ type || this.typeOf(obj) ];
1655
1656                                 type = typeof parser;
1657                                 inStack = inArray( obj, stack );
1658
1659                                 if ( inStack !== -1 ) {
1660                                         return "recursion(" + (inStack - stack.length) + ")";
1661                                 }
1662                                 if ( type === "function" )  {
1663                                         stack.push( obj );
1664                                         res = parser.call( this, obj, stack );
1665                                         stack.pop();
1666                                         return res;
1667                                 }
1668                                 return ( type === "string" ) ? parser : this.parsers.error;
1669                         },
1670                         typeOf: function( obj ) {
1671                                 var type;
1672                                 if ( obj === null ) {
1673                                         type = "null";
1674                                 } else if ( typeof obj === "undefined" ) {
1675                                         type = "undefined";
1676                                 } else if ( QUnit.is( "regexp", obj) ) {
1677                                         type = "regexp";
1678                                 } else if ( QUnit.is( "date", obj) ) {
1679                                         type = "date";
1680                                 } else if ( QUnit.is( "function", obj) ) {
1681                                         type = "function";
1682                                 } else if ( typeof obj.setInterval !== undefined && typeof obj.document !== "undefined" && typeof obj.nodeType === "undefined" ) {
1683                                         type = "window";
1684                                 } else if ( obj.nodeType === 9 ) {
1685                                         type = "document";
1686                                 } else if ( obj.nodeType ) {
1687                                         type = "node";
1688                                 } else if (
1689                                         // native arrays
1690                                         toString.call( obj ) === "[object Array]" ||
1691                                         // NodeList objects
1692                                         ( typeof obj.length === "number" && typeof obj.item !== "undefined" && ( obj.length ? obj.item(0) === obj[0] : ( obj.item( 0 ) === null && typeof obj[0] === "undefined" ) ) )
1693                                 ) {
1694                                         type = "array";
1695                                 } else if ( obj.constructor === Error.prototype.constructor ) {
1696                                         type = "error";
1697                                 } else {
1698                                         type = typeof obj;
1699                                 }
1700                                 return type;
1701                         },
1702                         separator: function() {
1703                                 return this.multiline ? this.HTML ? "<br />" : "\n" : this.HTML ? "&nbsp;" : " ";
1704                         },
1705                         // extra can be a number, shortcut for increasing-calling-decreasing
1706                         indent: function( extra ) {
1707                                 if ( !this.multiline ) {
1708                                         return "";
1709                                 }
1710                                 var chr = this.indentChar;
1711                                 if ( this.HTML ) {
1712                                         chr = chr.replace( /\t/g, "   " ).replace( / /g, "&nbsp;" );
1713                                 }
1714                                 return new Array( this._depth_ + (extra||0) ).join(chr);
1715                         },
1716                         up: function( a ) {
1717                                 this._depth_ += a || 1;
1718                         },
1719                         down: function( a ) {
1720                                 this._depth_ -= a || 1;
1721                         },
1722                         setParser: function( name, parser ) {
1723                                 this.parsers[name] = parser;
1724                         },
1725                         // The next 3 are exposed so you can use them
1726                         quote: quote,
1727                         literal: literal,
1728                         join: join,
1729                         //
1730                         _depth_: 1,
1731                         // This is the list of parsers, to modify them, use jsDump.setParser
1732                         parsers: {
1733                                 window: "[Window]",
1734                                 document: "[Document]",
1735                                 error: function(error) {
1736                                         return "Error(\"" + error.message + "\")";
1737                                 },
1738                                 unknown: "[Unknown]",
1739                                 "null": "null",
1740                                 "undefined": "undefined",
1741                                 "function": function( fn ) {
1742                                         var ret = "function",
1743                                                 // functions never have name in IE
1744                                                 name = "name" in fn ? fn.name : (reName.exec(fn) || [])[1];
1745
1746                                         if ( name ) {
1747                                                 ret += " " + name;
1748                                         }
1749                                         ret += "( ";
1750
1751                                         ret = [ ret, QUnit.jsDump.parse( fn, "functionArgs" ), "){" ].join( "" );
1752                                         return join( ret, QUnit.jsDump.parse(fn,"functionCode" ), "}" );
1753                                 },
1754                                 array: array,
1755                                 nodelist: array,
1756                                 "arguments": array,
1757                                 object: function( map, stack ) {
1758                                         var ret = [ ], keys, key, val, i;
1759                                         QUnit.jsDump.up();
1760                                         keys = [];
1761                                         for ( key in map ) {
1762                                                 keys.push( key );
1763                                         }
1764                                         keys.sort();
1765                                         for ( i = 0; i < keys.length; i++ ) {
1766                                                 key = keys[ i ];
1767                                                 val = map[ key ];
1768                                                 ret.push( QUnit.jsDump.parse( key, "key" ) + ": " + QUnit.jsDump.parse( val, undefined, stack ) );
1769                                         }
1770                                         QUnit.jsDump.down();
1771                                         return join( "{", ret, "}" );
1772                                 },
1773                                 node: function( node ) {
1774                                         var a, val,
1775                                                 open = QUnit.jsDump.HTML ? "&lt;" : "<",
1776                                                 close = QUnit.jsDump.HTML ? "&gt;" : ">",
1777                                                 tag = node.nodeName.toLowerCase(),
1778                                                 ret = open + tag;
1779
1780                                         for ( a in QUnit.jsDump.DOMAttrs ) {
1781                                                 val = node[ QUnit.jsDump.DOMAttrs[a] ];
1782                                                 if ( val ) {
1783                                                         ret += " " + a + "=" + QUnit.jsDump.parse( val, "attribute" );
1784                                                 }
1785                                         }
1786                                         return ret + close + open + "/" + tag + close;
1787                                 },
1788                                 // function calls it internally, it's the arguments part of the function
1789                                 functionArgs: function( fn ) {
1790                                         var args,
1791                                                 l = fn.length;
1792
1793                                         if ( !l ) {
1794                                                 return "";
1795                                         }
1796
1797                                         args = new Array(l);
1798                                         while ( l-- ) {
1799                                                 // 97 is 'a'
1800                                                 args[l] = String.fromCharCode(97+l);
1801                                         }
1802                                         return " " + args.join( ", " ) + " ";
1803                                 },
1804                                 // object calls it internally, the key part of an item in a map
1805                                 key: quote,
1806                                 // function calls it internally, it's the content of the function
1807                                 functionCode: "[code]",
1808                                 // node calls it internally, it's an html attribute value
1809                                 attribute: quote,
1810                                 string: quote,
1811                                 date: quote,
1812                                 regexp: literal,
1813                                 number: literal,
1814                                 "boolean": literal
1815                         },
1816                         DOMAttrs: {
1817                                 //attributes to dump from nodes, name=>realName
1818                                 id: "id",
1819                                 name: "name",
1820                                 "class": "className"
1821                         },
1822                         // if true, entities are escaped ( <, >, \t, space and \n )
1823                         HTML: false,
1824                         // indentation unit
1825                         indentChar: "  ",
1826                         // if true, items in a collection, are separated by a \n, else just a space.
1827                         multiline: true
1828                 };
1829
1830         return jsDump;
1831 }());
1832
1833 // from Sizzle.js
1834 function getText( elems ) {
1835         var i, elem,
1836                 ret = "";
1837
1838         for ( i = 0; elems[i]; i++ ) {
1839                 elem = elems[i];
1840
1841                 // Get the text from text nodes and CDATA nodes
1842                 if ( elem.nodeType === 3 || elem.nodeType === 4 ) {
1843                         ret += elem.nodeValue;
1844
1845                 // Traverse everything else, except comment nodes
1846                 } else if ( elem.nodeType !== 8 ) {
1847                         ret += getText( elem.childNodes );
1848                 }
1849         }
1850
1851         return ret;
1852 }
1853
1854 // from jquery.js
1855 function inArray( elem, array ) {
1856         if ( array.indexOf ) {
1857                 return array.indexOf( elem );
1858         }
1859
1860         for ( var i = 0, length = array.length; i < length; i++ ) {
1861                 if ( array[ i ] === elem ) {
1862                         return i;
1863                 }
1864         }
1865
1866         return -1;
1867 }
1868
1869 /*
1870  * Javascript Diff Algorithm
1871  *  By John Resig (http://ejohn.org/)
1872  *  Modified by Chu Alan "sprite"
1873  *
1874  * Released under the MIT license.
1875  *
1876  * More Info:
1877  *  http://ejohn.org/projects/javascript-diff-algorithm/
1878  *
1879  * Usage: QUnit.diff(expected, actual)
1880  *
1881  * QUnit.diff( "the quick brown fox jumped over", "the quick fox jumps over" ) == "the  quick <del>brown </del> fox <del>jumped </del><ins>jumps </ins> over"
1882  */
1883 QUnit.diff = (function() {
1884         /*jshint eqeqeq:false, eqnull:true */
1885         function diff( o, n ) {
1886                 var i,
1887                         ns = {},
1888                         os = {};
1889
1890                 for ( i = 0; i < n.length; i++ ) {
1891                         if ( ns[ n[i] ] == null ) {
1892                                 ns[ n[i] ] = {
1893                                         rows: [],
1894                                         o: null
1895                                 };
1896                         }
1897                         ns[ n[i] ].rows.push( i );
1898                 }
1899
1900                 for ( i = 0; i < o.length; i++ ) {
1901                         if ( os[ o[i] ] == null ) {
1902                                 os[ o[i] ] = {
1903                                         rows: [],
1904                                         n: null
1905                                 };
1906                         }
1907                         os[ o[i] ].rows.push( i );
1908                 }
1909
1910                 for ( i in ns ) {
1911                         if ( !hasOwn.call( ns, i ) ) {
1912                                 continue;
1913                         }
1914                         if ( ns[i].rows.length === 1 && os[i] !== undefined && os[i].rows.length === 1 ) {
1915                                 n[ ns[i].rows[0] ] = {
1916                                         text: n[ ns[i].rows[0] ],
1917                                         row: os[i].rows[0]
1918                                 };
1919                                 o[ os[i].rows[0] ] = {
1920                                         text: o[ os[i].rows[0] ],
1921                                         row: ns[i].rows[0]
1922                                 };
1923                         }
1924                 }
1925
1926                 for ( i = 0; i < n.length - 1; i++ ) {
1927                         if ( n[i].text != null && n[ i + 1 ].text == null && n[i].row + 1 < o.length && o[ n[i].row + 1 ].text == null &&
1928                                                 n[ i + 1 ] == o[ n[i].row + 1 ] ) {
1929
1930                                 n[ i + 1 ] = {
1931                                         text: n[ i + 1 ],
1932                                         row: n[i].row + 1
1933                                 };
1934                                 o[ n[i].row + 1 ] = {
1935                                         text: o[ n[i].row + 1 ],
1936                                         row: i + 1
1937                                 };
1938                         }
1939                 }
1940
1941                 for ( i = n.length - 1; i > 0; i-- ) {
1942                         if ( n[i].text != null && n[ i - 1 ].text == null && n[i].row > 0 && o[ n[i].row - 1 ].text == null &&
1943                                                 n[ i - 1 ] == o[ n[i].row - 1 ]) {
1944
1945                                 n[ i - 1 ] = {
1946                                         text: n[ i - 1 ],
1947                                         row: n[i].row - 1
1948                                 };
1949                                 o[ n[i].row - 1 ] = {
1950                                         text: o[ n[i].row - 1 ],
1951                                         row: i - 1
1952                                 };
1953                         }
1954                 }
1955
1956                 return {
1957                         o: o,
1958                         n: n
1959                 };
1960         }
1961
1962         return function( o, n ) {
1963                 o = o.replace( /\s+$/, "" );
1964                 n = n.replace( /\s+$/, "" );
1965
1966                 var i, pre,
1967                         str = "",
1968                         out = diff( o === "" ? [] : o.split(/\s+/), n === "" ? [] : n.split(/\s+/) ),
1969                         oSpace = o.match(/\s+/g),
1970                         nSpace = n.match(/\s+/g);
1971
1972                 if ( oSpace == null ) {
1973                         oSpace = [ " " ];
1974                 }
1975                 else {
1976                         oSpace.push( " " );
1977                 }
1978
1979                 if ( nSpace == null ) {
1980                         nSpace = [ " " ];
1981                 }
1982                 else {
1983                         nSpace.push( " " );
1984                 }
1985
1986                 if ( out.n.length === 0 ) {
1987                         for ( i = 0; i < out.o.length; i++ ) {
1988                                 str += "<del>" + out.o[i] + oSpace[i] + "</del>";
1989                         }
1990                 }
1991                 else {
1992                         if ( out.n[0].text == null ) {
1993                                 for ( n = 0; n < out.o.length && out.o[n].text == null; n++ ) {
1994                                         str += "<del>" + out.o[n] + oSpace[n] + "</del>";
1995                                 }
1996                         }
1997
1998                         for ( i = 0; i < out.n.length; i++ ) {
1999                                 if (out.n[i].text == null) {
2000                                         str += "<ins>" + out.n[i] + nSpace[i] + "</ins>";
2001                                 }
2002                                 else {
2003                                         // `pre` initialized at top of scope
2004                                         pre = "";
2005
2006                                         for ( n = out.n[i].row + 1; n < out.o.length && out.o[n].text == null; n++ ) {
2007                                                 pre += "<del>" + out.o[n] + oSpace[n] + "</del>";
2008                                         }
2009                                         str += " " + out.n[i].text + nSpace[i] + pre;
2010                                 }
2011                         }
2012                 }
2013
2014                 return str;
2015         };
2016 }());
2017
2018 // for CommonJS enviroments, export everything
2019 if ( typeof exports !== "undefined" ) {
2020         extend( exports, QUnit );
2021 }
2022
2023 // get at whatever the global object is, like window in browsers
2024 }( (function() {return this;}.call()) ));

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