git.roojs.org Git - bootswatch/blob - bower_components/bootstrap/js/tests/vendor/qunit.js

   1 /**
   2  * QUnit - A JavaScript Unit Testing Framework
   3  *
   4  * http://docs.jquery.com/QUnit
   5  *
   6  * Copyright (c) 2012 John Resig, Jörn Zaefferer
   7  * Dual licensed under the MIT (MIT-LICENSE.txt)
   8  * or GPL (GPL-LICENSE.txt) licenses.
   9  */
  10
  11 (function(window) {
  12
  13 var defined = {
  14         setTimeout: typeof window.setTimeout !== "undefined",
  15         sessionStorage: (function() {
  16                 try {
  17                         return !!sessionStorage.getItem;
  18                 } catch(e) {
  19                         return false;
  20                 }
  21         })()
  22 };
  23
  24 var testId = 0;
  25
  26 var Test = function(name, testName, expected, testEnvironmentArg, async, callback) {
  27         this.name = name;
  28         this.testName = testName;
  29         this.expected = expected;
  30         this.testEnvironmentArg = testEnvironmentArg;
  31         this.async = async;
  32         this.callback = callback;
  33         this.assertions = [];
  34 };
  35 Test.prototype = {
  36         init: function() {
  37                 var tests = id("qunit-tests");
  38                 if (tests) {
  39                         var b = document.createElement("strong");
  40                                 b.innerHTML = "Running " + this.name;
  41                         var li = document.createElement("li");
  42                                 li.appendChild( b );
  43                                 li.className = "running";
  44                                 li.id = this.id = "test-output" + testId++;
  45                         tests.appendChild( li );
  46                 }
  47         },
  48         setup: function() {
  49                 if (this.module != config.previousModule) {
  50                         if ( config.previousModule ) {
  51                                 QUnit.moduleDone( {
  52                                         name: config.previousModule,
  53                                         failed: config.moduleStats.bad,
  54                                         passed: config.moduleStats.all - config.moduleStats.bad,
  55                                         total: config.moduleStats.all
  56                                 } );
  57                         }
  58                         config.previousModule = this.module;
  59                         config.moduleStats = { all: 0, bad: 0 };
  60                         QUnit.moduleStart( {
  61                                 name: this.module
  62                         } );
  63                 }
  64
  65                 config.current = this;
  66                 this.testEnvironment = extend({
  67                         setup: function() {},
  68                         teardown: function() {}
  69                 }, this.moduleTestEnvironment);
  70                 if (this.testEnvironmentArg) {
  71                         extend(this.testEnvironment, this.testEnvironmentArg);
  72                 }
  73
  74                 QUnit.testStart( {
  75                         name: this.testName
  76                 } );
  77
  78                 // allow utility functions to access the current test environment
  79                 // TODO why??
  80                 QUnit.current_testEnvironment = this.testEnvironment;
  81
  82                 try {
  83                         if ( !config.pollution ) {
  84                                 saveGlobal();
  85                         }
  86
  87                         this.testEnvironment.setup.call(this.testEnvironment);
  88                 } catch(e) {
  89                         QUnit.ok( false, "Setup failed on " + this.testName + ": " + e.message );
  90                 }
  91         },
  92         run: function() {
  93                 if ( this.async ) {
  94                         QUnit.stop();
  95                 }
  96
  97                 if ( config.notrycatch ) {
  98                         this.callback.call(this.testEnvironment);
  99                         return;
 100                 }
 101                 try {
 102                         this.callback.call(this.testEnvironment);
 103                 } catch(e) {
 104                         fail("Test " + this.testName + " died, exception and test follows", e, this.callback);
 105                         QUnit.ok( false, "Died on test #" + (this.assertions.length + 1) + ": " + e.message + " - " + QUnit.jsDump.parse(e) );
 106                         // else next test will carry the responsibility
 107                         saveGlobal();
 108
 109                         // Restart the tests if they're blocking
 110                         if ( config.blocking ) {
 111                                 start();
 112                         }
 113                 }
 114         },
 115         teardown: function() {
 116                 try {
 117                         this.testEnvironment.teardown.call(this.testEnvironment);
 118                         checkPollution();
 119                 } catch(e) {
 120                         QUnit.ok( false, "Teardown failed on " + this.testName + ": " + e.message );
 121                 }
 122         },
 123         finish: function() {
 124                 if ( this.expected && this.expected != this.assertions.length ) {
 125                         QUnit.ok( false, "Expected " + this.expected + " assertions, but " + this.assertions.length + " were run" );
 126                 }
 127
 128                 var good = 0, bad = 0,
 129                         tests = id("qunit-tests");
 130
 131                 config.stats.all += this.assertions.length;
 132                 config.moduleStats.all += this.assertions.length;
 133
 134                 if ( tests ) {
 135                         var ol = document.createElement("ol");
 136
 137                         for ( var i = 0; i < this.assertions.length; i++ ) {
 138                                 var assertion = this.assertions[i];
 139
 140                                 var li = document.createElement("li");
 141                                 li.className = assertion.result ? "pass" : "fail";
 142                                 li.innerHTML = assertion.message || (assertion.result ? "okay" : "failed");
 143                                 ol.appendChild( li );
 144
 145                                 if ( assertion.result ) {
 146                                         good++;
 147                                 } else {
 148                                         bad++;
 149                                         config.stats.bad++;
 150                                         config.moduleStats.bad++;
 151                                 }
 152                         }
 153
 154                         // store result when possible
 155                         if ( QUnit.config.reorder && defined.sessionStorage ) {
 156                                 if (bad) {
 157                                         sessionStorage.setItem("qunit-" + this.module + "-" + this.testName, bad);
 158                                 } else {
 159                                         sessionStorage.removeItem("qunit-" + this.module + "-" + this.testName);
 160                                 }
 161                         }
 162
 163                         if (bad == 0) {
 164                                 ol.style.display = "none";
 165                         }
 166
 167                         var b = document.createElement("strong");
 168                         b.innerHTML = this.name + " <b class='counts'>(<b class='failed'>" + bad + "</b>, <b class='passed'>" + good + "</b>, " + this.assertions.length + ")</b>";
 169
 170                         var a = document.createElement("a");
 171                         a.innerHTML = "Rerun";
 172                         a.href = QUnit.url({ filter: getText([b]).replace(/\([^)]+\)$/, "").replace(/(^\s*|\s*$)/g, "") });
 173
 174                         addEvent(b, "click", function() {
 175                                 var next = b.nextSibling.nextSibling,
 176                                         display = next.style.display;
 177                                 next.style.display = display === "none" ? "block" : "none";
 178                         });
 179
 180                         addEvent(b, "dblclick", function(e) {
 181                                 var target = e && e.target ? e.target : window.event.srcElement;
 182                                 if ( target.nodeName.toLowerCase() == "span" || target.nodeName.toLowerCase() == "b" ) {
 183                                         target = target.parentNode;
 184                                 }
 185                                 if ( window.location && target.nodeName.toLowerCase() === "strong" ) {
 186                                         window.location = QUnit.url({ filter: getText([target]).replace(/\([^)]+\)$/, "").replace(/(^\s*|\s*$)/g, "") });
 187                                 }
 188                         });
 189
 190                         var li = id(this.id);
 191                         li.className = bad ? "fail" : "pass";
 192                         li.removeChild( li.firstChild );
 193                         li.appendChild( b );
 194                         li.appendChild( a );
 195                         li.appendChild( ol );
 196
 197                 } else {
 198                         for ( var i = 0; i < this.assertions.length; i++ ) {
 199                                 if ( !this.assertions[i].result ) {
 200                                         bad++;
 201                                         config.stats.bad++;
 202                                         config.moduleStats.bad++;
 203                                 }
 204                         }
 205                 }
 206
 207                 try {
 208                         QUnit.reset();
 209                 } catch(e) {
 210                         fail("reset() failed, following Test " + this.testName + ", exception and reset fn follows", e, QUnit.reset);
 211                 }
 212
 213                 QUnit.testDone( {
 214                         name: this.testName,
 215                         failed: bad,
 216                         passed: this.assertions.length - bad,
 217                         total: this.assertions.length
 218                 } );
 219         },
 220
 221         queue: function() {
 222                 var test = this;
 223                 synchronize(function() {
 224                         test.init();
 225                 });
 226                 function run() {
 227                         // each of these can by async
 228                         synchronize(function() {
 229                                 test.setup();
 230                         });
 231                         synchronize(function() {
 232                                 test.run();
 233                         });
 234                         synchronize(function() {
 235                                 test.teardown();
 236                         });
 237                         synchronize(function() {
 238                                 test.finish();
 239                         });
 240                 }
 241                 // defer when previous test run passed, if storage is available
 242                 var bad = QUnit.config.reorder && defined.sessionStorage && +sessionStorage.getItem("qunit-" + this.module + "-" + this.testName);
 243                 if (bad) {
 244                         run();
 245                 } else {
 246                         synchronize(run);
 247                 };
 248         }
 249
 250 };
 251
 252 var QUnit = {
 253
 254         // call on start of module test to prepend name to all tests
 255         module: function(name, testEnvironment) {
 256                 config.currentModule = name;
 257                 config.currentModuleTestEnviroment = testEnvironment;
 258         },
 259
 260         asyncTest: function(testName, expected, callback) {
 261                 if ( arguments.length === 2 ) {
 262                         callback = expected;
 263                         expected = 0;
 264                 }
 265
 266                 QUnit.test(testName, expected, callback, true);
 267         },
 268
 269         test: function(testName, expected, callback, async) {
 270                 var name = '<span class="test-name">' + testName + '</span>', testEnvironmentArg;
 271
 272                 if ( arguments.length === 2 ) {
 273                         callback = expected;
 274                         expected = null;
 275                 }
 276                 // is 2nd argument a testEnvironment?
 277                 if ( expected && typeof expected === 'object') {
 278                         testEnvironmentArg = expected;
 279                         expected = null;
 280                 }
 281
 282                 if ( config.currentModule ) {
 283                         name = '<span class="module-name">' + config.currentModule + "</span>: " + name;
 284                 }
 285
 286                 if ( !validTest(config.currentModule + ": " + testName) ) {
 287                         return;
 288                 }
 289
 290                 var test = new Test(name, testName, expected, testEnvironmentArg, async, callback);
 291                 test.module = config.currentModule;
 292                 test.moduleTestEnvironment = config.currentModuleTestEnviroment;
 293                 test.queue();
 294         },
 295
 296         /**
 297          * Specify the number of expected assertions to gurantee that failed test (no assertions are run at all) don't slip through.
 298          */
 299         expect: function(asserts) {
 300                 config.current.expected = asserts;
 301         },
 302
 303         /**
 304          * Asserts true.
 305          * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
 306          */
 307         ok: function(a, msg) {
 308                 a = !!a;
 309                 var details = {
 310                         result: a,
 311                         message: msg
 312                 };
 313                 msg = escapeHtml(msg);
 314                 QUnit.log(details);
 315                 config.current.assertions.push({
 316                         result: a,
 317                         message: msg
 318                 });
 319         },
 320
 321         /**
 322          * Checks that the first two arguments are equal, with an optional message.
 323          * Prints out both actual and expected values.
 324          *
 325          * Prefered to ok( actual == expected, message )
 326          *
 327          * @example equal( format("Received {0} bytes.", 2), "Received 2 bytes." );
 328          *
 329          * @param Object actual
 330          * @param Object expected
 331          * @param String message (optional)
 332          */
 333         equal: function(actual, expected, message) {
 334                 QUnit.push(expected == actual, actual, expected, message);
 335         },
 336
 337         notEqual: function(actual, expected, message) {
 338                 QUnit.push(expected != actual, actual, expected, message);
 339         },
 340
 341         deepEqual: function(actual, expected, message) {
 342                 QUnit.push(QUnit.equiv(actual, expected), actual, expected, message);
 343         },
 344
 345         notDeepEqual: function(actual, expected, message) {
 346                 QUnit.push(!QUnit.equiv(actual, expected), actual, expected, message);
 347         },
 348
 349         strictEqual: function(actual, expected, message) {
 350                 QUnit.push(expected === actual, actual, expected, message);
 351         },
 352
 353         notStrictEqual: function(actual, expected, message) {
 354                 QUnit.push(expected !== actual, actual, expected, message);
 355         },
 356
 357         raises: function(block, expected, message) {
 358                 var actual, ok = false;
 359
 360                 if (typeof expected === 'string') {
 361                         message = expected;
 362                         expected = null;
 363                 }
 364
 365                 try {
 366                         block();
 367                 } catch (e) {
 368                         actual = e;
 369                 }
 370
 371                 if (actual) {
 372                         // we don't want to validate thrown error
 373                         if (!expected) {
 374                                 ok = true;
 375                         // expected is a regexp
 376                         } else if (QUnit.objectType(expected) === "regexp") {
 377                                 ok = expected.test(actual);
 378                         // expected is a constructor
 379                         } else if (actual instanceof expected) {
 380                                 ok = true;
 381                         // expected is a validation function which returns true is validation passed
 382                         } else if (expected.call({}, actual) === true) {
 383                                 ok = true;
 384                         }
 385                 }
 386
 387                 QUnit.ok(ok, message);
 388         },
 389
 390         start: function() {
 391                 config.semaphore--;
 392                 if (config.semaphore > 0) {
 393                         // don't start until equal number of stop-calls
 394                         return;
 395                 }
 396                 if (config.semaphore < 0) {
 397                         // ignore if start is called more often then stop
 398                         config.semaphore = 0;
 399                 }
 400                 // A slight delay, to avoid any current callbacks
 401                 if ( defined.setTimeout ) {
 402                         window.setTimeout(function() {
 403                                 if (config.semaphore > 0) {
 404                                         return;
 405                                 }
 406                                 if ( config.timeout ) {
 407                                         clearTimeout(config.timeout);
 408                                 }
 409
 410                                 config.blocking = false;
 411                                 process();
 412                         }, 13);
 413                 } else {
 414                         config.blocking = false;
 415                         process();
 416                 }
 417         },
 418
 419         stop: function(timeout) {
 420                 config.semaphore++;
 421                 config.blocking = true;
 422
 423                 if ( timeout && defined.setTimeout ) {
 424                         clearTimeout(config.timeout);
 425                         config.timeout = window.setTimeout(function() {
 426                                 QUnit.ok( false, "Test timed out" );
 427                                 QUnit.start();
 428                         }, timeout);
 429                 }
 430         }
 431 };
 432
 433 // Backwards compatibility, deprecated
 434 QUnit.equals = QUnit.equal;
 435 QUnit.same = QUnit.deepEqual;
 436
 437 // Maintain internal state
 438 var config = {
 439         // The queue of tests to run
 440         queue: [],
 441
 442         // block until document ready
 443         blocking: true,
 444
 445         // when enabled, show only failing tests
 446         // gets persisted through sessionStorage and can be changed in UI via checkbox
 447         hidepassed: false,
 448
 449         // by default, run previously failed tests first
 450         // very useful in combination with "Hide passed tests" checked
 451         reorder: true,
 452
 453         // by default, modify document.title when suite is done
 454         altertitle: true,
 455
 456         urlConfig: ['noglobals', 'notrycatch']
 457 };
 458
 459 // Load paramaters
 460 (function() {
 461         var location = window.location || { search: "", protocol: "file:" },
 462                 params = location.search.slice( 1 ).split( "&" ),
 463                 length = params.length,
 464                 urlParams = {},
 465                 current;
 466
 467         if ( params[ 0 ] ) {
 468                 for ( var i = 0; i < length; i++ ) {
 469                         current = params[ i ].split( "=" );
 470                         current[ 0 ] = decodeURIComponent( current[ 0 ] );
 471                         // allow just a key to turn on a flag, e.g., test.html?noglobals
 472                         current[ 1 ] = current[ 1 ] ? decodeURIComponent( current[ 1 ] ) : true;
 473                         urlParams[ current[ 0 ] ] = current[ 1 ];
 474                 }
 475         }
 476
 477         QUnit.urlParams = urlParams;
 478         config.filter = urlParams.filter;
 479
 480         // Figure out if we're running the tests from a server or not
 481         QUnit.isLocal = !!(location.protocol === 'file:');
 482 })();
 483
 484 // Expose the API as global variables, unless an 'exports'
 485 // object exists, in that case we assume we're in CommonJS
 486 if ( typeof exports === "undefined" || typeof require === "undefined" ) {
 487         extend(window, QUnit);
 488         window.QUnit = QUnit;
 489 } else {
 490         extend(exports, QUnit);
 491         exports.QUnit = QUnit;
 492 }
 493
 494 // define these after exposing globals to keep them in these QUnit namespace only
 495 extend(QUnit, {
 496         config: config,
 497
 498         // Initialize the configuration options
 499         init: function() {
 500                 extend(config, {
 501                         stats: { all: 0, bad: 0 },
 502                         moduleStats: { all: 0, bad: 0 },
 503                         started: +new Date,
 504                         updateRate: 1000,
 505                         blocking: false,
 506                         autostart: true,
 507                         autorun: false,
 508                         filter: "",
 509                         queue: [],
 510                         semaphore: 0
 511                 });
 512
 513                 var tests = id( "qunit-tests" ),
 514                         banner = id( "qunit-banner" ),
 515                         result = id( "qunit-testresult" );
 516
 517                 if ( tests ) {
 518                         tests.innerHTML = "";
 519                 }
 520
 521                 if ( banner ) {
 522                         banner.className = "";
 523                 }
 524
 525                 if ( result ) {
 526                         result.parentNode.removeChild( result );
 527                 }
 528
 529                 if ( tests ) {
 530                         result = document.createElement( "p" );
 531                         result.id = "qunit-testresult";
 532                         result.className = "result";
 533                         tests.parentNode.insertBefore( result, tests );
 534                         result.innerHTML = 'Running...<br/>&nbsp;';
 535                 }
 536         },
 537
 538         /**
 539          * Resets the test setup. Useful for tests that modify the DOM.
 540          *
 541          * If jQuery is available, uses jQuery's html(), otherwise just innerHTML.
 542          */
 543         reset: function() {
 544                 if ( window.jQuery ) {
 545                         jQuery( "#qunit-fixture" ).html( config.fixture );
 546                 } else {
 547                         var main = id( 'qunit-fixture' );
 548                         if ( main ) {
 549                                 main.innerHTML = config.fixture;
 550                         }
 551                 }
 552         },
 553
 554         /**
 555          * Trigger an event on an element.
 556          *
 557          * @example triggerEvent( document.body, "click" );
 558          *
 559          * @param DOMElement elem
 560          * @param String type
 561          */
 562         triggerEvent: function( elem, type, event ) {
 563                 if ( document.createEvent ) {
 564                         event = document.createEvent("MouseEvents");
 565                         event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
 566                                 0, 0, 0, 0, 0, false, false, false, false, 0, null);
 567                         elem.dispatchEvent( event );
 568
 569                 } else if ( elem.fireEvent ) {
 570                         elem.fireEvent("on"+type);
 571                 }
 572         },
 573
 574         // Safe object type checking
 575         is: function( type, obj ) {
 576                 return QUnit.objectType( obj ) == type;
 577         },
 578
 579         objectType: function( obj ) {
 580                 if (typeof obj === "undefined") {
 581                                 return "undefined";
 582
 583                 // consider: typeof null === object
 584                 }
 585                 if (obj === null) {
 586                                 return "null";
 587                 }
 588
 589                 var type = Object.prototype.toString.call( obj )
 590                         .match(/^\[object\s(.*)\]$/)[1] || '';
 591
 592                 switch (type) {
 593                                 case 'Number':
 594                                                 if (isNaN(obj)) {
 595                                                                 return "nan";
 596                                                 } else {
 597                                                                 return "number";
 598                                                 }
 599                                 case 'String':
 600                                 case 'Boolean':
 601                                 case 'Array':
 602                                 case 'Date':
 603                                 case 'RegExp':
 604                                 case 'Function':
 605                                                 return type.toLowerCase();
 606                 }
 607                 if (typeof obj === "object") {
 608                                 return "object";
 609                 }
 610                 return undefined;
 611         },
 612
 613         push: function(result, actual, expected, message) {
 614                 var details = {
 615                         result: result,
 616                         message: message,
 617                         actual: actual,
 618                         expected: expected
 619                 };
 620
 621                 message = escapeHtml(message) || (result ? "okay" : "failed");
 622                 message = '<span class="test-message">' + message + "</span>";
 623                 expected = escapeHtml(QUnit.jsDump.parse(expected));
 624                 actual = escapeHtml(QUnit.jsDump.parse(actual));
 625                 var output = message + '<table><tr class="test-expected"><th>Expected: </th><td><pre>' + expected + '</pre></td></tr>';
 626                 if (actual != expected) {
 627                         output += '<tr class="test-actual"><th>Result: </th><td><pre>' + actual + '</pre></td></tr>';
 628                         output += '<tr class="test-diff"><th>Diff: </th><td><pre>' + QUnit.diff(expected, actual) +'</pre></td></tr>';
 629                 }
 630                 if (!result) {
 631                         var source = sourceFromStacktrace();
 632                         if (source) {
 633                                 details.source = source;
 634                                 output += '<tr class="test-source"><th>Source: </th><td><pre>' + escapeHtml(source) + '</pre></td></tr>';
 635                         }
 636                 }
 637                 output += "</table>";
 638
 639                 QUnit.log(details);
 640
 641                 config.current.assertions.push({
 642                         result: !!result,
 643                         message: output
 644                 });
 645         },
 646
 647         url: function( params ) {
 648                 params = extend( extend( {}, QUnit.urlParams ), params );
 649                 var querystring = "?",
 650                         key;
 651                 for ( key in params ) {
 652                         querystring += encodeURIComponent( key ) + "=" +
 653                                 encodeURIComponent( params[ key ] ) + "&";
 654                 }
 655                 return window.location.pathname + querystring.slice( 0, -1 );
 656         },
 657
 658         extend: extend,
 659         id: id,
 660         addEvent: addEvent,
 661
 662         // Logging callbacks; all receive a single argument with the listed properties
 663         // run test/logs.html for any related changes
 664         begin: function() {},
 665         // done: { failed, passed, total, runtime }
 666         done: function() {},
 667         // log: { result, actual, expected, message }
 668         log: function() {},
 669         // testStart: { name }
 670         testStart: function() {},
 671         // testDone: { name, failed, passed, total }
 672         testDone: function() {},
 673         // moduleStart: { name }
 674         moduleStart: function() {},
 675         // moduleDone: { name, failed, passed, total }
 676         moduleDone: function() {}
 677 });
 678
 679 if ( typeof document === "undefined" || document.readyState === "complete" ) {
 680         config.autorun = true;
 681 }
 682
 683 QUnit.load = function() {
 684         QUnit.begin({});
 685
 686         // Initialize the config, saving the execution queue
 687         var oldconfig = extend({}, config);
 688         QUnit.init();
 689         extend(config, oldconfig);
 690
 691         config.blocking = false;
 692
 693         var urlConfigHtml = '', len = config.urlConfig.length;
 694         for ( var i = 0, val; i < len, val = config.urlConfig[i]; i++ ) {
 695                 config[val] = QUnit.urlParams[val];
 696                 urlConfigHtml += '<label><input name="' + val + '" type="checkbox"' + ( config[val] ? ' checked="checked"' : '' ) + '>' + val + '</label>';
 697         }
 698
 699         var userAgent = id("qunit-userAgent");
 700         if ( userAgent ) {
 701                 userAgent.innerHTML = navigator.userAgent;
 702         }
 703         var banner = id("qunit-header");
 704         if ( banner ) {
 705                 banner.innerHTML = '<a href="' + QUnit.url({ filter: undefined }) + '"> ' + banner.innerHTML + '</a> ' + urlConfigHtml;
 706                 addEvent( banner, "change", function( event ) {
 707                         var params = {};
 708                         params[ event.target.name ] = event.target.checked ? true : undefined;
 709                         window.location = QUnit.url( params );
 710                 });
 711         }
 712
 713         var toolbar = id("qunit-testrunner-toolbar");
 714         if ( toolbar ) {
 715                 var filter = document.createElement("input");
 716                 filter.type = "checkbox";
 717                 filter.id = "qunit-filter-pass";
 718                 addEvent( filter, "click", function() {
 719                         var ol = document.getElementById("qunit-tests");
 720                         if ( filter.checked ) {
 721                                 ol.className = ol.className + " hidepass";
 722                         } else {
 723                                 var tmp = " " + ol.className.replace( /[\n\t\r]/g, " " ) + " ";
 724                                 ol.className = tmp.replace(/ hidepass /, " ");
 725                         }
 726                         if ( defined.sessionStorage ) {
 727                                 if (filter.checked) {
 728                                         sessionStorage.setItem("qunit-filter-passed-tests", "true");
 729                                 } else {
 730                                         sessionStorage.removeItem("qunit-filter-passed-tests");
 731                                 }
 732                         }
 733                 });
 734                 if ( config.hidepassed || defined.sessionStorage && sessionStorage.getItem("qunit-filter-passed-tests") ) {
 735                         filter.checked = true;
 736                         var ol = document.getElementById("qunit-tests");
 737                         ol.className = ol.className + " hidepass";
 738                 }
 739                 toolbar.appendChild( filter );
 740
 741                 var label = document.createElement("label");
 742                 label.setAttribute("for", "qunit-filter-pass");
 743                 label.innerHTML = "Hide passed tests";
 744                 toolbar.appendChild( label );
 745         }
 746
 747         var main = id('qunit-fixture');
 748         if ( main ) {
 749                 config.fixture = main.innerHTML;
 750         }
 751
 752         if (config.autostart) {
 753                 QUnit.start();
 754         }
 755 };
 756
 757 addEvent(window, "load", QUnit.load);
 758
 759 function done() {
 760         config.autorun = true;
 761
 762         // Log the last module results
 763         if ( config.currentModule ) {
 764                 QUnit.moduleDone( {
 765                         name: config.currentModule,
 766                         failed: config.moduleStats.bad,
 767                         passed: config.moduleStats.all - config.moduleStats.bad,
 768                         total: config.moduleStats.all
 769                 } );
 770         }
 771
 772         var banner = id("qunit-banner"),
 773                 tests = id("qunit-tests"),
 774                 runtime = +new Date - config.started,
 775                 passed = config.stats.all - config.stats.bad,
 776                 html = [
 777                         'Tests completed in ',
 778                         runtime,
 779                         ' milliseconds.<br/>',
 780                         '<span class="passed">',
 781                         passed,
 782                         '</span> tests of <span class="total">',
 783                         config.stats.all,
 784                         '</span> passed, <span class="failed">',
 785                         config.stats.bad,
 786                         '</span> failed.'
 787                 ].join('');
 788
 789         if ( banner ) {
 790                 banner.className = (config.stats.bad ? "qunit-fail" : "qunit-pass");
 791         }
 792
 793         if ( tests ) {
 794                 id( "qunit-testresult" ).innerHTML = html;
 795         }
 796
 797         if ( config.altertitle && typeof document !== "undefined" && document.title ) {
 798                 // show ✖ for good, ✔ for bad suite result in title
 799                 // use escape sequences in case file gets loaded with non-utf-8-charset
 800                 document.title = [
 801                         (config.stats.bad ? "\u2716" : "\u2714"),
 802                         document.title.replace(/^[\u2714\u2716] /i, "")
 803                 ].join(" ");
 804         }
 805
 806         QUnit.done( {
 807                 failed: config.stats.bad,
 808                 passed: passed,
 809                 total: config.stats.all,
 810                 runtime: runtime
 811         } );
 812 }
 813
 814 function validTest( name ) {
 815         var filter = config.filter,
 816                 run = false;
 817
 818         if ( !filter ) {
 819                 return true;
 820         }
 821
 822         var not = filter.charAt( 0 ) === "!";
 823         if ( not ) {
 824                 filter = filter.slice( 1 );
 825         }
 826
 827         if ( name.indexOf( filter ) !== -1 ) {
 828                 return !not;
 829         }
 830
 831         if ( not ) {
 832                 run = true;
 833         }
 834
 835         return run;
 836 }
 837
 838 // so far supports only Firefox, Chrome and Opera (buggy)
 839 // could be extended in the future to use something like https://github.com/csnover/TraceKit
 840 function sourceFromStacktrace() {
 841         try {
 842                 throw new Error();
 843         } catch ( e ) {
 844                 if (e.stacktrace) {
 845                         // Opera
 846                         return e.stacktrace.split("\n")[6];
 847                 } else if (e.stack) {
 848                         // Firefox, Chrome
 849                         return e.stack.split("\n")[4];
 850                 } else if (e.sourceURL) {
 851                         // Safari, PhantomJS
 852                         // TODO sourceURL points at the 'throw new Error' line above, useless
 853                         //return e.sourceURL + ":" + e.line;
 854                 }
 855         }
 856 }
 857
 858 function escapeHtml(s) {
 859         if (!s) {
 860                 return "";
 861         }
 862         s = s + "";
 863         return s.replace(/[\&"<>\\]/g, function(s) {
 864                 switch(s) {
 865                         case "&": return "&amp;";
 866                         case "\\": return "\\\\";
 867                         case '"': return '\"';
 868                         case "<": return "&lt;";
 869                         case ">": return "&gt;";
 870                         default: return s;
 871                 }
 872         });
 873 }
 874
 875 function synchronize( callback ) {
 876         config.queue.push( callback );
 877
 878         if ( config.autorun && !config.blocking ) {
 879                 process();
 880         }
 881 }
 882
 883 function process() {
 884         var start = (new Date()).getTime();
 885
 886         while ( config.queue.length && !config.blocking ) {
 887                 if ( config.updateRate <= 0 || (((new Date()).getTime() - start) < config.updateRate) ) {
 888                         config.queue.shift()();
 889                 } else {
 890                         window.setTimeout( process, 13 );
 891                         break;
 892                 }
 893         }
 894         if (!config.blocking && !config.queue.length) {
 895                 done();
 896         }
 897 }
 898
 899 function saveGlobal() {
 900         config.pollution = [];
 901
 902         if ( config.noglobals ) {
 903                 for ( var key in window ) {
 904                         config.pollution.push( key );
 905                 }
 906         }
 907 }
 908
 909 function checkPollution( name ) {
 910         var old = config.pollution;
 911         saveGlobal();
 912
 913         var newGlobals = diff( config.pollution, old );
 914         if ( newGlobals.length > 0 ) {
 915                 ok( false, "Introduced global variable(s): " + newGlobals.join(", ") );
 916         }
 917
 918         var deletedGlobals = diff( old, config.pollution );
 919         if ( deletedGlobals.length > 0 ) {
 920                 ok( false, "Deleted global variable(s): " + deletedGlobals.join(", ") );
 921         }
 922 }
 923
 924 // returns a new Array with the elements that are in a but not in b
 925 function diff( a, b ) {
 926         var result = a.slice();
 927         for ( var i = 0; i < result.length; i++ ) {
 928                 for ( var j = 0; j < b.length; j++ ) {
 929                         if ( result[i] === b[j] ) {
 930                                 result.splice(i, 1);
 931                                 i--;
 932                                 break;
 933                         }
 934                 }
 935         }
 936         return result;
 937 }
 938
 939 function fail(message, exception, callback) {
 940         if ( typeof console !== "undefined" && console.error && console.warn ) {
 941                 console.error(message);
 942                 console.error(exception);
 943                 console.warn(callback.toString());
 944
 945         } else if ( window.opera && opera.postError ) {
 946                 opera.postError(message, exception, callback.toString);
 947         }
 948 }
 949
 950 function extend(a, b) {
 951         for ( var prop in b ) {
 952                 if ( b[prop] === undefined ) {
 953                         delete a[prop];
 954                 } else {
 955                         a[prop] = b[prop];
 956                 }
 957         }
 958
 959         return a;
 960 }
 961
 962 function addEvent(elem, type, fn) {
 963         if ( elem.addEventListener ) {
 964                 elem.addEventListener( type, fn, false );
 965         } else if ( elem.attachEvent ) {
 966                 elem.attachEvent( "on" + type, fn );
 967         } else {
 968                 fn();
 969         }
 970 }
 971
 972 function id(name) {
 973         return !!(typeof document !== "undefined" && document && document.getElementById) &&
 974                 document.getElementById( name );
 975 }
 976
 977 // Test for equality any JavaScript type.
 978 // Discussions and reference: http://philrathe.com/articles/equiv
 979 // Test suites: http://philrathe.com/tests/equiv
 980 // Author: Philippe Rathé <prathe@gmail.com>
 981 QUnit.equiv = function () {
 982
 983         var innerEquiv; // the real equiv function
 984         var callers = []; // stack to decide between skip/abort functions
 985         var parents = []; // stack to avoiding loops from circular referencing
 986
 987         // Call the o related callback with the given arguments.
 988         function bindCallbacks(o, callbacks, args) {
 989                 var prop = QUnit.objectType(o);
 990                 if (prop) {
 991                         if (QUnit.objectType(callbacks[prop]) === "function") {
 992                                 return callbacks[prop].apply(callbacks, args);
 993                         } else {
 994                                 return callbacks[prop]; // or undefined
 995                         }
 996                 }
 997         }
 998
 999         var callbacks = function () {
1000
1001                 // for string, boolean, number and null
1002                 function useStrictEquality(b, a) {
1003                         if (b instanceof a.constructor || a instanceof b.constructor) {
1004                                 // to catch short annotaion VS 'new' annotation of a
1005                                 // declaration
1006                                 // e.g. var i = 1;
1007                                 // var j = new Number(1);
1008                                 return a == b;
1009                         } else {
1010                                 return a === b;
1011                         }
1012                 }
1013
1014                 return {
1015                         "string" : useStrictEquality,
1016                         "boolean" : useStrictEquality,
1017                         "number" : useStrictEquality,
1018                         "null" : useStrictEquality,
1019                         "undefined" : useStrictEquality,
1020
1021                         "nan" : function(b) {
1022                                 return isNaN(b);
1023                         },
1024
1025                         "date" : function(b, a) {
1026                                 return QUnit.objectType(b) === "date"
1027                                                 && a.valueOf() === b.valueOf();
1028                         },
1029
1030                         "regexp" : function(b, a) {
1031                                 return QUnit.objectType(b) === "regexp"
1032                                                 && a.source === b.source && // the regex itself
1033                                                 a.global === b.global && // and its modifers
1034                                                                                                         // (gmi) ...
1035                                                 a.ignoreCase === b.ignoreCase
1036                                                 && a.multiline === b.multiline;
1037                         },
1038
1039                         // - skip when the property is a method of an instance (OOP)
1040                         // - abort otherwise,
1041                         // initial === would have catch identical references anyway
1042                         "function" : function() {
1043                                 var caller = callers[callers.length - 1];
1044                                 return caller !== Object && typeof caller !== "undefined";
1045                         },
1046
1047                         "array" : function(b, a) {
1048                                 var i, j, loop;
1049                                 var len;
1050
1051                                 // b could be an object literal here
1052                                 if (!(QUnit.objectType(b) === "array")) {
1053                                         return false;
1054                                 }
1055
1056                                 len = a.length;
1057                                 if (len !== b.length) { // safe and faster
1058                                         return false;
1059                                 }
1060
1061                                 // track reference to avoid circular references
1062                                 parents.push(a);
1063                                 for (i = 0; i < len; i++) {
1064                                         loop = false;
1065                                         for (j = 0; j < parents.length; j++) {
1066                                                 if (parents[j] === a[i]) {
1067                                                         loop = true;// dont rewalk array
1068                                                 }
1069                                         }
1070                                         if (!loop && !innerEquiv(a[i], b[i])) {
1071                                                 parents.pop();
1072                                                 return false;
1073                                         }
1074                                 }
1075                                 parents.pop();
1076                                 return true;
1077                         },
1078
1079                         "object" : function(b, a) {
1080                                 var i, j, loop;
1081                                 var eq = true; // unless we can proove it
1082                                 var aProperties = [], bProperties = []; // collection of
1083                                                                                                                 // strings
1084
1085                                 // comparing constructors is more strict than using
1086                                 // instanceof
1087                                 if (a.constructor !== b.constructor) {
1088                                         return false;
1089                                 }
1090
1091                                 // stack constructor before traversing properties
1092                                 callers.push(a.constructor);
1093                                 // track reference to avoid circular references
1094                                 parents.push(a);
1095
1096                                 for (i in a) { // be strict: don't ensures hasOwnProperty
1097                                                                 // and go deep
1098                                         loop = false;
1099                                         for (j = 0; j < parents.length; j++) {
1100                                                 if (parents[j] === a[i])
1101                                                         loop = true; // don't go down the same path
1102                                                                                         // twice
1103                                         }
1104                                         aProperties.push(i); // collect a's properties
1105
1106                                         if (!loop && !innerEquiv(a[i], b[i])) {
1107                                                 eq = false;
1108                                                 break;
1109                                         }
1110                                 }
1111
1112                                 callers.pop(); // unstack, we are done
1113                                 parents.pop();
1114
1115                                 for (i in b) {
1116                                         bProperties.push(i); // collect b's properties
1117                                 }
1118
1119                                 // Ensures identical properties name
1120                                 return eq
1121                                                 && innerEquiv(aProperties.sort(), bProperties
1122                                                                 .sort());
1123                         }
1124                 };
1125         }();
1126
1127         innerEquiv = function() { // can take multiple arguments
1128                 var args = Array.prototype.slice.apply(arguments);
1129                 if (args.length < 2) {
1130                         return true; // end transition
1131                 }
1132
1133                 return (function(a, b) {
1134                         if (a === b) {
1135                                 return true; // catch the most you can
1136                         } else if (a === null || b === null || typeof a === "undefined"
1137                                         || typeof b === "undefined"
1138                                         || QUnit.objectType(a) !== QUnit.objectType(b)) {
1139                                 return false; // don't lose time with error prone cases
1140                         } else {
1141                                 return bindCallbacks(a, callbacks, [ b, a ]);
1142                         }
1143
1144                         // apply transition with (1..n) arguments
1145                 })(args[0], args[1])
1146                                 && arguments.callee.apply(this, args.splice(1,
1147                                                 args.length - 1));
1148         };
1149
1150         return innerEquiv;
1151
1152 }();
1153
1154 /**
1155  * jsDump Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com |
1156  * http://flesler.blogspot.com Licensed under BSD
1157  * (http://www.opensource.org/licenses/bsd-license.php) Date: 5/15/2008
1158  *
1159  * @projectDescription Advanced and extensible data dumping for Javascript.
1160  * @version 1.0.0
1161  * @author Ariel Flesler
1162  * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
1163  */
1164 QUnit.jsDump = (function() {
1165         function quote( str ) {
1166                 return '"' + str.toString().replace(/"/g, '\\"') + '"';
1167         };
1168         function literal( o ) {
1169                 return o + '';
1170         };
1171         function join( pre, arr, post ) {
1172                 var s = jsDump.separator(),
1173                         base = jsDump.indent(),
1174                         inner = jsDump.indent(1);
1175                 if ( arr.join )
1176                         arr = arr.join( ',' + s + inner );
1177                 if ( !arr )
1178                         return pre + post;
1179                 return [ pre, inner + arr, base + post ].join(s);
1180         };
1181         function array( arr, stack ) {
1182                 var i = arr.length, ret = Array(i);
1183                 this.up();
1184                 while ( i-- )
1185                         ret[i] = this.parse( arr[i] , undefined , stack);
1186                 this.down();
1187                 return join( '[', ret, ']' );
1188         };
1189
1190         var reName = /^function (\w+)/;
1191
1192         var jsDump = {
1193                 parse:function( obj, type, stack ) { //type is used mostly internally, you can fix a (custom)type in advance
1194                         stack = stack || [ ];
1195                         var parser = this.parsers[ type || this.typeOf(obj) ];
1196                         type = typeof parser;
1197                         var inStack = inArray(obj, stack);
1198                         if (inStack != -1) {
1199                                 return 'recursion('+(inStack - stack.length)+')';
1200                         }
1201                         //else
1202                         if (type == 'function')  {
1203                                         stack.push(obj);
1204                                         var res = parser.call( this, obj, stack );
1205                                         stack.pop();
1206                                         return res;
1207                         }
1208                         // else
1209                         return (type == 'string') ? parser : this.parsers.error;
1210                 },
1211                 typeOf:function( obj ) {
1212                         var type;
1213                         if ( obj === null ) {
1214                                 type = "null";
1215                         } else if (typeof obj === "undefined") {
1216                                 type = "undefined";
1217                         } else if (QUnit.is("RegExp", obj)) {
1218                                 type = "regexp";
1219                         } else if (QUnit.is("Date", obj)) {
1220                                 type = "date";
1221                         } else if (QUnit.is("Function", obj)) {
1222                                 type = "function";
1223                         } else if (typeof obj.setInterval !== undefined && typeof obj.document !== "undefined" && typeof obj.nodeType === "undefined") {
1224                                 type = "window";
1225                         } else if (obj.nodeType === 9) {
1226                                 type = "document";
1227                         } else if (obj.nodeType) {
1228                                 type = "node";
1229                         } else if (typeof obj === "object" && typeof obj.length === "number" && obj.length >= 0) {
1230                                 type = "array";
1231                         } else {
1232                                 type = typeof obj;
1233                         }
1234                         return type;
1235                 },
1236                 separator:function() {
1237                         return this.multiline ? this.HTML ? '<br />' : '\n' : this.HTML ? '&nbsp;' : ' ';
1238                 },
1239                 indent:function( extra ) {// extra can be a number, shortcut for increasing-calling-decreasing
1240                         if ( !this.multiline )
1241                                 return '';
1242                         var chr = this.indentChar;
1243                         if ( this.HTML )
1244                                 chr = chr.replace(/\t/g,'   ').replace(/ /g,'&nbsp;');
1245                         return Array( this._depth_ + (extra||0) ).join(chr);
1246                 },
1247                 up:function( a ) {
1248                         this._depth_ += a || 1;
1249                 },
1250                 down:function( a ) {
1251                         this._depth_ -= a || 1;
1252                 },
1253                 setParser:function( name, parser ) {
1254                         this.parsers[name] = parser;
1255                 },
1256                 // The next 3 are exposed so you can use them
1257                 quote:quote,
1258                 literal:literal,
1259                 join:join,
1260                 //
1261                 _depth_: 1,
1262                 // This is the list of parsers, to modify them, use jsDump.setParser
1263                 parsers:{
1264                         window: '[Window]',
1265                         document: '[Document]',
1266                         error:'[ERROR]', //when no parser is found, shouldn't happen
1267                         unknown: '[Unknown]',
1268                         'null':'null',
1269                         'undefined':'undefined',
1270                         'function':function( fn ) {
1271                                 var ret = 'function',
1272                                         name = 'name' in fn ? fn.name : (reName.exec(fn)||[])[1];//functions never have name in IE
1273                                 if ( name )
1274                                         ret += ' ' + name;
1275                                 ret += '(';
1276
1277                                 ret = [ ret, QUnit.jsDump.parse( fn, 'functionArgs' ), '){'].join('');
1278                                 return join( ret, QUnit.jsDump.parse(fn,'functionCode'), '}' );
1279                         },
1280                         array: array,
1281                         nodelist: array,
1282                         arguments: array,
1283                         object:function( map, stack ) {
1284                                 var ret = [ ];
1285                                 QUnit.jsDump.up();
1286                                 for ( var key in map ) {
1287                                     var val = map[key];
1288                                         ret.push( QUnit.jsDump.parse(key,'key') + ': ' + QUnit.jsDump.parse(val, undefined, stack));
1289                 }
1290                                 QUnit.jsDump.down();
1291                                 return join( '{', ret, '}' );
1292                         },
1293                         node:function( node ) {
1294                                 var open = QUnit.jsDump.HTML ? '&lt;' : '<',
1295                                         close = QUnit.jsDump.HTML ? '&gt;' : '>';
1296
1297                                 var tag = node.nodeName.toLowerCase(),
1298                                         ret = open + tag;
1299
1300                                 for ( var a in QUnit.jsDump.DOMAttrs ) {
1301                                         var val = node[QUnit.jsDump.DOMAttrs[a]];
1302                                         if ( val )
1303                                                 ret += ' ' + a + '=' + QUnit.jsDump.parse( val, 'attribute' );
1304                                 }
1305                                 return ret + close + open + '/' + tag + close;
1306                         },
1307                         functionArgs:function( fn ) {//function calls it internally, it's the arguments part of the function
1308                                 var l = fn.length;
1309                                 if ( !l ) return '';
1310
1311                                 var args = Array(l);
1312                                 while ( l-- )
1313                                         args[l] = String.fromCharCode(97+l);//97 is 'a'
1314                                 return ' ' + args.join(', ') + ' ';
1315                         },
1316                         key:quote, //object calls it internally, the key part of an item in a map
1317                         functionCode:'[code]', //function calls it internally, it's the content of the function
1318                         attribute:quote, //node calls it internally, it's an html attribute value
1319                         string:quote,
1320                         date:quote,
1321                         regexp:literal, //regex
1322                         number:literal,
1323                         'boolean':literal
1324                 },
1325                 DOMAttrs:{//attributes to dump from nodes, name=>realName
1326                         id:'id',
1327                         name:'name',
1328                         'class':'className'
1329                 },
1330                 HTML:false,//if true, entities are escaped ( <, >, \t, space and \n )
1331                 indentChar:'  ',//indentation unit
1332                 multiline:true //if true, items in a collection, are separated by a \n, else just a space.
1333         };
1334
1335         return jsDump;
1336 })();
1337
1338 // from Sizzle.js
1339 function getText( elems ) {
1340         var ret = "", elem;
1341
1342         for ( var i = 0; elems[i]; i++ ) {
1343                 elem = elems[i];
1344
1345                 // Get the text from text nodes and CDATA nodes
1346                 if ( elem.nodeType === 3 || elem.nodeType === 4 ) {
1347                         ret += elem.nodeValue;
1348
1349                 // Traverse everything else, except comment nodes
1350                 } else if ( elem.nodeType !== 8 ) {
1351                         ret += getText( elem.childNodes );
1352                 }
1353         }
1354
1355         return ret;
1356 };
1357
1358 //from jquery.js
1359 function inArray( elem, array ) {
1360         if ( array.indexOf ) {
1361                 return array.indexOf( elem );
1362         }
1363
1364         for ( var i = 0, length = array.length; i < length; i++ ) {
1365                 if ( array[ i ] === elem ) {
1366                         return i;
1367                 }
1368         }
1369
1370         return -1;
1371 }
1372
1373 /*
1374  * Javascript Diff Algorithm
1375  *  By John Resig (http://ejohn.org/)
1376  *  Modified by Chu Alan "sprite"
1377  *
1378  * Released under the MIT license.
1379  *
1380  * More Info:
1381  *  http://ejohn.org/projects/javascript-diff-algorithm/
1382  *
1383  * Usage: QUnit.diff(expected, actual)
1384  *
1385  * 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"
1386  */
1387 QUnit.diff = (function() {
1388         function diff(o, n) {
1389                 var ns = {};
1390                 var os = {};
1391
1392                 for (var i = 0; i < n.length; i++) {
1393                         if (ns[n[i]] == null)
1394                                 ns[n[i]] = {
1395                                         rows: [],
1396                                         o: null
1397                                 };
1398                         ns[n[i]].rows.push(i);
1399                 }
1400
1401                 for (var i = 0; i < o.length; i++) {
1402                         if (os[o[i]] == null)
1403                                 os[o[i]] = {
1404                                         rows: [],
1405                                         n: null
1406                                 };
1407                         os[o[i]].rows.push(i);
1408                 }
1409
1410                 for (var i in ns) {
1411                         if (ns[i].rows.length == 1 && typeof(os[i]) != "undefined" && os[i].rows.length == 1) {
1412                                 n[ns[i].rows[0]] = {
1413                                         text: n[ns[i].rows[0]],
1414                                         row: os[i].rows[0]
1415                                 };
1416                                 o[os[i].rows[0]] = {
1417                                         text: o[os[i].rows[0]],
1418                                         row: ns[i].rows[0]
1419                                 };
1420                         }
1421                 }
1422
1423                 for (var i = 0; i < n.length - 1; i++) {
1424                         if (n[i].text != null && n[i + 1].text == null && n[i].row + 1 < o.length && o[n[i].row + 1].text == null &&
1425                         n[i + 1] == o[n[i].row + 1]) {
1426                                 n[i + 1] = {
1427                                         text: n[i + 1],
1428                                         row: n[i].row + 1
1429                                 };
1430                                 o[n[i].row + 1] = {
1431                                         text: o[n[i].row + 1],
1432                                         row: i + 1
1433                                 };
1434                         }
1435                 }
1436
1437                 for (var i = n.length - 1; i > 0; i--) {
1438                         if (n[i].text != null && n[i - 1].text == null && n[i].row > 0 && o[n[i].row - 1].text == null &&
1439                         n[i - 1] == o[n[i].row - 1]) {
1440                                 n[i - 1] = {
1441                                         text: n[i - 1],
1442                                         row: n[i].row - 1
1443                                 };
1444                                 o[n[i].row - 1] = {
1445                                         text: o[n[i].row - 1],
1446                                         row: i - 1
1447                                 };
1448                         }
1449                 }
1450
1451                 return {
1452                         o: o,
1453                         n: n
1454                 };
1455         }
1456
1457         return function(o, n) {
1458                 o = o.replace(/\s+$/, '');
1459                 n = n.replace(/\s+$/, '');
1460                 var out = diff(o == "" ? [] : o.split(/\s+/), n == "" ? [] : n.split(/\s+/));
1461
1462                 var str = "";
1463
1464                 var oSpace = o.match(/\s+/g);
1465                 if (oSpace == null) {
1466                         oSpace = [" "];
1467                 }
1468                 else {
1469                         oSpace.push(" ");
1470                 }
1471                 var nSpace = n.match(/\s+/g);
1472                 if (nSpace == null) {
1473                         nSpace = [" "];
1474                 }
1475                 else {
1476                         nSpace.push(" ");
1477                 }
1478
1479                 if (out.n.length == 0) {
1480                         for (var i = 0; i < out.o.length; i++) {
1481                                 str += '<del>' + out.o[i] + oSpace[i] + "</del>";
1482                         }
1483                 }
1484                 else {
1485                         if (out.n[0].text == null) {
1486                                 for (n = 0; n < out.o.length && out.o[n].text == null; n++) {
1487                                         str += '<del>' + out.o[n] + oSpace[n] + "</del>";
1488                                 }
1489                         }
1490
1491                         for (var i = 0; i < out.n.length; i++) {
1492                                 if (out.n[i].text == null) {
1493                                         str += '<ins>' + out.n[i] + nSpace[i] + "</ins>";
1494                                 }
1495                                 else {
1496                                         var pre = "";
1497
1498                                         for (n = out.n[i].row + 1; n < out.o.length && out.o[n].text == null; n++) {
1499                                                 pre += '<del>' + out.o[n] + oSpace[n] + "</del>";
1500                                         }
1501                                         str += " " + out.n[i].text + nSpace[i] + pre;
1502                                 }
1503                         }
1504                 }
1505
1506                 return str;
1507         };
1508 })();
1509
1510 })(this);