modules/documentCanvas/canvas/canvas.test3.js

   1 define([
   2 'libs/chai',
   3 'modules/documentCanvas/canvas/canvas',
   4 'modules/documentCanvas/canvas/documentElement'
   5 ], function(chai, canvas, documentElement) {
   6
   7 'use strict';
   8
   9 var expect = chai.expect;
  10
  11
  12 describe('Canvas', function() {
  13
  14     describe('Internal HTML representation of a sample document', function() {
  15         it('works', function() {
  16             var c = canvas.fromXML('\
  17                 <section>\
  18                     This is some text without its own wrapping tag.\
  19                     <div class="p.subclass">\
  20                         This is a paragraph.\
  21                     </div>\
  22                     <div>\
  23                         This is text in a div <span>with some inline text</span>.\
  24                     </div>\
  25                     This is some text without its own wrapping tag.\
  26                 </section>\
  27             ');
  28             var expected = '<div wlxml-tag="section">'
  29                             + 'This is some text without its own wrapping tag.'
  30                             + '<div wlxml-tag="div" wlxml-class="p-subclass">This is a paragraph.</div>'
  31                             + '<div wlxml-tag="div">This is text in a div <div wlxml-tag="span">with some inline text</div>.</div>'
  32                             + 'This is some text without its own wrapping tag.'
  33                             + '</div>';
  34             expect(c.doc().dom()[0].isEqualNode($(expected)[0])).to.be.true;
  35         });
  36     });
  37
  38     describe('Internal HTML representation of a DocumentNodeElement', function() {
  39         it('is always a div tag', function() {
  40             ['section', 'header', 'span', 'aside', 'figure'].forEach(function(tagName) {
  41                 var dom = canvas.fromXML('<' + tagName + '></' + tagName + '>').doc().dom();
  42                 expect(dom.prop('tagName')).to.equal('DIV', tagName + ' is represented as div');
  43             });
  44         });
  45         it('has wlxml tag put into wlxml-tag attribute', function() {
  46             var dom = canvas.fromXML('<section></section>').doc().dom();
  47             expect(dom.attr('wlxml-tag')).to.equal('section');
  48         });
  49         it('has wlxml class put into wlxml-class, dots replaced with dashes', function() {
  50             var dom = canvas.fromXML('<section class="some.class"></section>').doc().dom();
  51             expect(dom.attr('wlxml-class')).to.equal('some-class');
  52         });
  53     });
  54
  55     describe('Internal HTML representation of a DocumentTextElement', function() {
  56         it('is just a TextNode', function() {
  57             var dom = canvas.fromXML('<section>Alice</section>').doc().children()[0].dom();
  58             expect(dom[0].nodeType === Node.TEXT_NODE);
  59         });
  60     });
  61
  62     describe('basic properties', function() {
  63         it('renders empty document when canvas created from empty XML', function() {
  64             var c = canvas.fromXML('');
  65             expect(c.doc()).to.equal(null);
  66         });
  67
  68         it('gives access to its document root node', function() {
  69             var c = canvas.fromXML('<section></section>');
  70             expect(c.doc().wlxmlTag).to.equal('section');
  71         });
  72
  73         describe('DocumentTextElement', function() {
  74             it('can have its content set', function() {
  75                 var c = canvas.fromXML('<section>Alice</section>'),
  76                     root = c.doc(),
  77                     text = root.children()[0];
  78
  79                 text.setText('a cat');
  80                 expect(root.children()[0].getText()).to.equal('a cat');
  81             });
  82         });
  83
  84         describe('DocumentNodeElement', function() {
  85             it('knows index of its child', function() {
  86                 var c = canvas.fromXML('<section><div></div><header></header><span></span></section>'),
  87                     root = c.doc(),
  88                     child = root.children()[1];
  89                 expect(root.childIndex(child)).to.equal(1);
  90             });
  91
  92             it('knows WLXML tag it renders', function(){
  93                 var c = canvas.fromXML('<section></section>'),
  94                     section = c.doc();
  95                 expect(section.getWlxmlTag()).to.equal('section', 'initial tag is section');
  96                 section.setWlxmlTag('header');
  97                 expect(section.getWlxmlTag()).to.equal('header', 'tag is changed to header');
  98             });
  99
 100             it('knows WLXML class of a WLXML tag it renders', function(){
 101                 var c = canvas.fromXML('<section class="some.class"></section>'),
 102                     section = c.doc();
 103                 expect(section.getWlxmlClass()).to.equal('some.class');
 104                 section.setWlxmlClass('some.other.class');
 105                 expect(section.getWlxmlClass()).to.equal('some.other.class');
 106                 section.setWlxmlClass(null);
 107                 expect(section.getWlxmlClass()).to.be.undefined;
 108             });
 109         });
 110     });
 111
 112
 113
 114     describe('document representation api', function() {
 115         describe('document root element', function() {
 116             var c = canvas.fromXML('<section></section>');
 117             it('exists', function() {
 118                 expect(c.doc()).to.be.instanceOf(documentElement.DocumentElement);
 119             });
 120             it('is of type DocumentNodeElement', function() {
 121                 expect(c.doc()).to.be.instanceOf(documentElement.DocumentNodeElement);
 122             });
 123         });
 124
 125         describe('DocumentElements comparison', function() {
 126             it('reports dwo DocumentElements to be the same when they represent the same wlxml document element', function() {
 127                 var c = canvas.fromXML('<section><div></div><div></div></section>'),
 128                     first_div1 = c.doc().children()[0],
 129                     first_div2 = c.doc().children()[0],
 130                     second_div = c.doc().children()[1];
 131                 expect(first_div1.sameNode(first_div1)).to.be.true;
 132                 expect(first_div1.sameNode(first_div2)).to.be.true;
 133                 expect(first_div1.sameNode(second_div)).to.be.false;
 134             });
 135         });
 136
 137         describe('traversing', function() {
 138             it('reports element nodes', function() {
 139                 var c = canvas.fromXML('<section><div></div></section>'),
 140                     children = c.doc().children();
 141                 expect(children.length).to.equal(1);
 142                 expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 143
 144                 c = canvas.fromXML('<section><div></div><div></div></section>'),
 145                     children = c.doc().children();
 146                 expect(children.length).to.equal(2);
 147                 expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 148                 expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 149             });
 150
 151             it('reports text nodes', function() {
 152                 var c = canvas.fromXML('<section>Alice</section>'),
 153                     children = c.doc().children();
 154                 expect(children.length).to.equal(1);
 155                 expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 156             });
 157
 158             describe('accessing parents', function() {
 159                 it('returns DocumentNodeElement representing parent in wlxml document as DocumentNodeElement parent', function() {
 160                     var c = canvas.fromXML('<section><div></div></section>'),
 161                         div = c.doc().children()[0];
 162                     expect(div.parent().sameNode(c.doc())).to.be.true;
 163                 });
 164                 it('returns DocumentNodeElement representing parent in wlxml document as DocumentTextElement parent', function() {
 165                     var c = canvas.fromXML('<section>Alice</section>'),
 166                         text = c.doc().children()[0];
 167                     expect(text.parent().sameNode(c.doc())).to.be.true;
 168                 });
 169             });
 170
 171             describe('free text handling', function() {
 172                     it('sees free text', function() {
 173                         var c = canvas.fromXML('<section>Alice <span>has</span> a cat</section>'),
 174                             children = c.doc().children();
 175                         expect(children.length).to.equal(3);
 176                         expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 177                         expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 178                         expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
 179                     });
 180             });
 181
 182             describe('white characters handling', function() {
 183                 it('says empty element node has no children', function() {
 184                     var c = canvas.fromXML('<section></section>');
 185                     expect(c.doc().children().length).to.equal(0);
 186                 });
 187                 it('says element node with one space has one DocumentTextElement', function() {
 188                     var c = canvas.fromXML('<section> </section>');
 189                     expect(c.doc().children().length).to.equal(1);
 190                     expect(c.doc().children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 191                     expect(c.doc().children()[0].getText()).to.equal(' ');
 192                 });
 193                 it('ignores white space surrounding block elements', function() {
 194                     var c = canvas.fromXML('<section> <div></div> </section>');
 195                     var children = c.doc().children();
 196                     expect(children.length).to.equal(1);
 197                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 198                 });
 199                 it('ignores white space between block elements', function() {
 200                     var c = canvas.fromXML('<section><div></div> <div></div></section>');
 201                     var children = c.doc().children();
 202                     expect(children.length === 2);
 203                     [0,1].forEach(function(idx) {
 204                         expect(children[idx]).to.be.instanceOf(documentElement.DocumentNodeElement);
 205                     });
 206                 });
 207
 208                 it('trims white space from the beginning and the end of the block elements', function() {
 209                     var c = canvas.fromXML('<section> Alice <span>has</span> a cat </section>');
 210                     expect(c.doc().children()[0].getText()).to.equal('Alice ');
 211                     expect(c.doc().children()[2].getText()).to.equal(' a cat');
 212                 });
 213
 214                 it('normalizes string of white characters to one space at the inline element boundries', function() {
 215                     var c = canvas.fromXML('<span>   Alice has a cat   </span>');
 216                     expect(c.doc().children()[0].getText()).to.equal(' Alice has a cat ');
 217                 });
 218
 219                 it('normalizes string of white characters to one space before inline element', function() {
 220                     var c = canvas.fromXML('<div>Alice has  <span>a cat</span></div>');
 221                     expect(c.doc().children()[0].getText()).to.equal('Alice has ');
 222                 });
 223
 224                 it('normalizes string of white characters to one space after inline element', function() {
 225                     var c = canvas.fromXML('<div>Alice has <span>a</span>  cat</div>');
 226                     expect(c.doc().children()[2].getText()).to.equal(' cat');
 227                 });
 228             });
 229         });
 230
 231         describe('manipulation api', function() {
 232
 233             describe('Basic Element inserting', function() {
 234                 it('can put new NodeElement at the end', function() {
 235                     var c = canvas.fromXML('<section></section>'),
 236                         appended = c.doc().append({tag: 'header', klass: 'some.class'}),
 237                         children = c.doc().children();
 238
 239                     expect(children.length).to.equal(1);
 240                     expect(children[0].sameNode(appended));
 241                 });
 242
 243                 it('can put new TextElement at the end', function() {
 244                     var c = canvas.fromXML('<section></section>'),
 245                         appended = c.doc().append({text: 'Alice'}),
 246                         children = c.doc().children();
 247
 248                     expect(children.length).to.equal(1);
 249                     expect(children[0].sameNode(appended));
 250                     expect(children[0].getText()).to.equal('Alice');
 251                 });
 252
 253                 it('can put new NodeElement after another NodeElement', function() {
 254                     var c = canvas.fromXML('<section><div></div></section>'),
 255                         div = c.doc().children()[0],
 256                         added = div.after({tag: 'header', klass: 'some.class'}),
 257                         children = c.doc().children();
 258                     expect(children.length).to.equal(2);
 259                     expect(children[1].sameNode(added));
 260                 });
 261
 262                 it('can put new Nodeelement before another element', function() {
 263                     var c = canvas.fromXML('<section><div></div></section>'),
 264                         div = c.doc().children()[0],
 265                         added = div.before({tag: 'header', klass: 'some.class'}),
 266                         children = c.doc().children();
 267                     expect(children.length).to.equal(2);
 268                     expect(children[0].sameNode(added));
 269                 });
 270
 271                 it('can put new DocumentNodeElement after DocumentTextElement', function() {
 272                     var c = canvas.fromXML('<section>Alice</section>'),
 273                         text = c.doc().children()[0],
 274                         added = text.after({tag: 'p'}),
 275                         children = c.doc().children();
 276
 277                     expect(children.length).to.equal(2);
 278                     expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 279                     expect(children[0].getText()).to.equal('Alice');
 280                     expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 281                     expect(children[1].sameNode(added)).to.be.true;
 282                 });
 283                 it('can put new DocumentNodeElement before DocumentTextElement', function() {
 284                     var c = canvas.fromXML('<section>Alice</section>'),
 285                         text = c.doc().children()[0],
 286                         added = text.before({tag: 'p'}),
 287                         children = c.doc().children();
 288
 289                     expect(children.length).to.equal(2);
 290                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 291                     expect(children[0].sameNode(added)).to.be.true;
 292                     expect(children[1]).to.be.instanceOf(documentElement.DocumentTextElement);
 293                     expect(children[1].getText()).to.equal('Alice');
 294                 });
 295             });
 296
 297             describe('Splitting text', function() {
 298
 299                 it('splits DocumentTextElement\'s parent into two DocumentNodeElements of the same type', function() {
 300                     var c = canvas.fromXML('<section><header>Some header</header></section>'),
 301                         section = c.doc(),
 302                         text = section.children()[0].children()[0];
 303
 304                     text.split({offset: 5});
 305                     expect(section.children().length).to.equal(2, 'section has two children');
 306
 307                     var header1 = section.children()[0];
 308                     var header2 = section.children()[1];
 309
 310                     expect(header1.wlxmlTag).to.equal('header', 'first section child represents wlxml header');
 311                     expect(header1.children().length).to.equal(1, 'first header has one text child');
 312                     expect(header1.children()[0].getText()).to.equal('Some ', 'first header has correct content');
 313                     expect(header2.wlxmlTag).to.equal('header', 'second section child represents wlxml header');
 314                     expect(header2.children().length).to.equal(1, 'second header has one text child');
 315                     expect(header2.children()[0].getText()).to.equal('header', 'second header has correct content');
 316                 });
 317
 318                 it('keeps DocumentTextElement\'s parent\'s children elements intact', function() {
 319                     var c = canvas.fromXML('\
 320                             <section>\
 321                                 <header>\
 322                                     A <span>fancy</span> and <span>nice</span> header\
 323                                 </header>\
 324                             </section>'),
 325                         section = c.doc(),
 326                         header = section.children()[0],
 327                         textAnd = header.children()[2];
 328
 329                     textAnd.split({offset: 2});
 330
 331                     var sectionChildren = section.children();
 332                     expect(sectionChildren.length).to.equal(2, 'Section has two children');
 333                     expect(sectionChildren[0].wlxmlTag).to.equal('header', 'First section element is a wlxml header');
 334                     expect(sectionChildren[1].wlxmlTag).to.equal('header', 'Second section element is a wlxml header');
 335
 336                     var firstHeaderChildren = sectionChildren[0].children();
 337                     expect(firstHeaderChildren.length).to.equal(3, 'First header has three children');
 338                     expect(firstHeaderChildren[0].getText()).to.equal('A ', 'First header starts with a text');
 339                     expect(firstHeaderChildren[1].wlxmlTag).to.equal('span', 'First header has span in the middle');
 340                     expect(firstHeaderChildren[2].getText()).to.equal(' a', 'First header ends with text');
 341
 342                     var secondHeaderChildren = sectionChildren[1].children();
 343                     expect(secondHeaderChildren.length).to.equal(3, 'Second header has three children');
 344                     expect(secondHeaderChildren[0].getText()).to.equal('nd ', 'Second header starts with text');
 345                     expect(secondHeaderChildren[1].wlxmlTag).to.equal('span', 'Second header has span in the middle');
 346                     expect(secondHeaderChildren[2].getText()).to.equal(' header', 'Second header ends with text');
 347                 });
 348             });
 349
 350             describe('wrapping', function() {
 351                 it('wraps DocumentNodeElement', function() {
 352                     var c = canvas.fromXML('<section><div></div></section>'),
 353                         div = c.doc().children()[0];
 354
 355                     var returned = div.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
 356                         parent = div.parent(),
 357                         parent2 = c.doc().children()[0];
 358
 359                     expect(returned.sameNode(parent)).to.be.true;
 360                     expect(returned.sameNode(parent2)).to.be.true;
 361                     expect(returned.getWlxmlTag()).to.equal('header');
 362                     expect(returned.getWlxmlClass()).to.equal('some.class');
 363                 });
 364                 it('wraps DocumentTextElement', function() {
 365                     var c = canvas.fromXML('<section>Alice</section>'),
 366                         text = c.doc().children()[0];
 367
 368                     var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
 369                         parent = text.parent(),
 370                         parent2 = c.doc().children()[0];
 371
 372                     expect(returned.sameNode(parent)).to.be.true;
 373                     expect(returned.sameNode(parent2)).to.be.true;
 374                     expect(returned.getWlxmlTag()).to.equal('header');
 375                     expect(returned.getWlxmlClass()).to.equal('some.class');
 376                 });
 377
 378                 it('wraps part of DocumentTextElement', function() {
 379                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 380                         text = c.doc().children()[0];
 381
 382                     var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: 5, end: 12}),
 383                         children = c.doc().children();
 384
 385                     expect(children.length).to.equal(3);
 386
 387                     expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 388                     expect(children[0].getText()).to.equal('Alice');
 389
 390                     expect(children[1].sameNode(returned)).to.be.true;
 391                     expect(returned.getWlxmlTag()).to.equal('header');
 392                     expect(returned.getWlxmlClass()).to.equal('some.class');
 393                     expect(children[1].children().length).to.equal(1);
 394                     expect(children[1].children()[0].getText()).to.equal(' has a ');
 395
 396                     expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
 397                     expect(children[2].getText()).to.equal('cat');
 398                 });
 399
 400                 it('wraps text spanning multiple sibling DocumentTextNodes', function() {
 401                     var c = canvas.fromXML('<section>Alice has a <span>small</span> cat</section>'),
 402                         section = c.doc(),
 403                         wrapper = c.wrapText({
 404                             inside: section,
 405                             _with: {tag: 'span', klass: 'some.class'},
 406                             offsetStart: 6,
 407                             offsetEnd: 4,
 408                             textNodeIdx: [0,2]
 409                         });
 410
 411                     expect(section.children().length).to.equal(2);
 412                     expect(section.children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 413                     expect(section.children()[0].getText()).to.equal('Alice ');
 414
 415                     var wrapper2 = section.children()[1];
 416                     expect(wrapper2.sameNode(wrapper)).to.be.true;
 417
 418                     var wrapperChildren = wrapper.children();
 419                     expect(wrapperChildren.length).to.equal(3);
 420                     expect(wrapperChildren[0].getText()).to.equal('has a ');
 421
 422                     expect(wrapperChildren[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 423                     expect(wrapperChildren[1].children().length).to.equal(1);
 424                     expect(wrapperChildren[1].children()[0].getText()).to.equal('small');
 425
 426                     expect(wrapperChildren[2].getText()).to.equal(' cat');
 427                 });
 428             });
 429         });
 430
 431         describe('Lists api', function() {
 432             it('allows creation of a list from existing sibling DocumentElements', function() {
 433                 var c = canvas.fromXML('\
 434                     <section>\
 435                         Alice\
 436                         <div>has</div>\
 437                         a\
 438                         <div>cat</div>\
 439                     </section>'),
 440                     section = c.doc(),
 441                     textAlice = section.children()[0],
 442                     divCat = section.children()[3]
 443
 444                 c.list.create({element1: textAlice, element2: divCat});
 445
 446                 expect(section.children().length).to.equal(1, 'section has one child element');
 447
 448                 var list = section.children()[0];
 449                 expect(list.is('list')).to.equal(true, 'section\'s only child is a list');
 450                 expect(list.children().length).to.equal(4, 'list contains four elements');
 451                 list.children().forEach(function(child) {
 452                     expect(child.getWlxmlClass()).to.equal('item', 'list childs have wlxml class of item');
 453                 });
 454             });
 455
 456             describe('extracting list items', function() {
 457                 it('creates two lists with extracted items in the middle if extracting from the middle of the list', function() {
 458                     var c = canvas.fromXML('\
 459                         <section>\
 460                             <div class="list.items">\
 461                                 <div class="item">0</div>\
 462                                 <div class="item">1</div>\
 463                                 <div class="item">2</div>\
 464                                 <div class="item">3</div>\
 465                             </div>\
 466                         </section>'),
 467                         list = c.doc().children()[0],
 468                         item1 = list.children()[1],
 469                         item2 = list.children()[2];
 470
 471                     c.list.extractItems({element1: item1, element2: item2});
 472
 473                     var section = c.doc(),
 474                         list1 = section.children()[0],
 475                         oldItem1 = section.children()[1],
 476                         oldItem2 = section.children()[2],
 477                         list2 = section.children()[3];
 478
 479                     expect(section.children().length).to.equal(4, 'section contains four children');
 480
 481                     expect(list1.is('list')).to.equal(true, 'first section child is a list');
 482                     expect(list1.children().length).to.equal(1, 'first list has one child');
 483                     expect(list1.children()[0].children()[0].getText()).to.equal('0', 'first item of the first list is a first item of the original list');
 484
 485                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item got extracted');
 486                     expect(oldItem1.getWlxmlClass() === undefined).to.equal(true, 'first extracted element has no wlxml class');
 487
 488                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item got extracted');
 489                     expect(oldItem2.getWlxmlClass() === undefined).to.equal(true, 'second extracted element has no wlxml class');
 490
 491                     expect(list2.is('list')).to.equal(true, 'last section child is a list');
 492                     expect(list2.children().length).to.equal(1, 'second list has one child');
 493                     expect(list2.children()[0].children()[0].getText()).to.equal('3', 'first item of the second list is a last item of the original list');
 494                 });
 495
 496                 it('puts extracted items above the list if starting item is the first one', function() {
 497                     var c = canvas.fromXML('\
 498                         <section>\
 499                             <div class="list.items">\
 500                                 <div class="item">0</div>\
 501                                 <div class="item">1</div>\
 502                             </div>\
 503                         </section>'),
 504                         list = c.doc().children()[0],
 505                         item1 = list.children()[0],
 506                         item2 = list.children()[1];
 507
 508                     c.list.extractItems({element1: item1, element2: item1});
 509
 510                     var section = c.doc(),
 511                         oldItem = section.children()[0],
 512                         newList = section.children()[1];
 513
 514                     expect(section.children().length).to.equal(2, 'section has two children');
 515                     expect(oldItem.children()[0].getText()).to.equal('0', 'first item extracted');
 516                     expect(newList.is('list')).to.equal(true, 'list lies below extracted item');
 517                     expect(newList.children().length).to.equal(1, 'list has now one child');
 518                 });
 519
 520                 it('puts extracted items below the list if ending item is the last one', function() {
 521                     var c = canvas.fromXML('\
 522                         <section>\
 523                             <div class="list.items">\
 524                                 <div class="item">0</div>\
 525                                 <div class="item">1</div>\
 526                             </div>\
 527                         </section>'),
 528                         list = c.doc().children()[0],
 529                         item1 = list.children()[0],
 530                         item2 = list.children()[1];
 531
 532                     c.list.extractItems({element1: item2, element2: item2});
 533
 534                     var section = c.doc(),
 535                         oldItem = section.children()[1],
 536                         newList = section.children()[0];
 537
 538                     expect(section.children().length).to.equal(2, 'section has two children');
 539                     expect(oldItem.children()[0].getText()).to.equal('1', 'first item extracted');
 540                     expect(newList.is('list')).to.equal(true, 'list lies above extracted item');
 541                     expect(newList.children().length).to.equal(1, 'list has now one child');
 542                 });
 543
 544                 it('removes list if all its items are extracted', function() {
 545                     var c = canvas.fromXML('\
 546                         <section>\
 547                             <div class="list.items">\
 548                                 <div class="item">some item</div>\
 549                             </div>\
 550                         </section>'),
 551                         list = c.doc().children()[0],
 552                         item = list.children()[0];
 553
 554                     c.list.extractItems({element1: item, element2: item});
 555
 556                     var section = c.doc(),
 557                         list1 = section.children()[0],
 558                         oldItem1 = section.children()[1],
 559                         oldItem2 = section.children()[2],
 560                         list2 = section.children()[3];
 561
 562                     expect(section.children().length).to.equal(1, 'section contains one child');
 563                 });
 564             });
 565         });
 566
 567     });
 568 });
 569
 570
 571 });