modules/documentCanvas/canvas/canvas.test3.js

   1 define([
   2 'libs/chai',
   3 'libs/sinon',
   4 'modules/documentCanvas/canvas/canvas',
   5 'modules/documentCanvas/canvas/documentElement',
   6 'modules/documentCanvas/canvas/utils'
   7 ], function(chai, sinon, canvas, documentElement, utils) {
   8
   9 'use strict';
  10
  11 var expect = chai.expect;
  12
  13
  14 describe('Canvas', function() {
  15
  16     describe('Internal HTML representation of a DocumentNodeElement', function() {
  17         it('is always a div tag', function() {
  18             ['section', 'header', 'span', 'aside', 'figure'].forEach(function(tagName) {
  19                 var dom = canvas.fromXML('<' + tagName + '></' + tagName + '>').doc().dom();
  20                 expect(dom.prop('tagName')).to.equal('DIV', tagName + ' is represented as div');
  21             });
  22         });
  23         it('has wlxml tag put into wlxml-tag attribute of its internal container', function() {
  24             var dom = canvas.fromXML('<section></section>').doc().dom();
  25             expect(dom.children('[document-element-content]').attr('wlxml-tag')).to.equal('section');
  26         });
  27         it('has wlxml class put into wlxml-class attribute of its internal containr, dots replaced with dashes', function() {
  28             var dom = canvas.fromXML('<section class="some.class"></section>').doc().dom();
  29             expect(dom.children('[document-element-content]').attr('wlxml-class')).to.equal('some-class');
  30         });
  31     });
  32
  33     describe('Internal HTML representation of a DocumentTextElement', function() {
  34         it('is text node wrapped in a div with document-text-element attribute set', function() {
  35             var dom = canvas.fromXML('<section>Alice</section>').doc().children()[0].dom();
  36             expect(dom.prop('tagName')).to.equal('DIV');
  37             expect(dom.attr('document-text-element')).to.equal('');
  38             expect(dom.contents().length).to.equal(1);
  39             expect(dom.contents()[0].nodeType).to.equal(Node.TEXT_NODE);
  40             expect($(dom.contents()[0]).text()).to.equal('Alice');
  41         });
  42     });
  43
  44     describe('basic properties', function() {
  45         it('renders empty document when canvas created from empty XML', function() {
  46             var c = canvas.fromXML('');
  47             expect(c.doc()).to.equal(null);
  48         });
  49
  50         it('gives access to its document root node', function() {
  51             var c = canvas.fromXML('<section></section>');
  52             expect(c.doc().getWlxmlTag()).to.equal('section');
  53         });
  54
  55         describe('root element', function() {
  56             it('has no parent', function() {
  57                 var c = canvas.fromXML('<section></section>');
  58                 expect(c.doc().parent()).to.be.null;
  59             });
  60         });
  61
  62         describe('DocumentTextElement', function() {
  63             it('can have its content set', function() {
  64                 var c = canvas.fromXML('<section>Alice</section>'),
  65                     root = c.doc(),
  66                     text = root.children()[0];
  67
  68                 text.setText('a cat');
  69                 expect(root.children()[0].getText()).to.equal('a cat');
  70             });
  71         });
  72
  73         describe('DocumentNodeElement', function() {
  74             it('knows index of its child', function() {
  75                 var c = canvas.fromXML('<section><div></div><header></header><span></span></section>'),
  76                     root = c.doc(),
  77                     child = root.children()[1];
  78                 expect(root.childIndex(child)).to.equal(1);
  79             });
  80
  81             it('knows WLXML tag it renders', function(){
  82                 var c = canvas.fromXML('<section></section>'),
  83                     section = c.doc();
  84                 expect(section.getWlxmlTag()).to.equal('section', 'initial tag is section');
  85                 section.setWlxmlTag('header');
  86                 expect(section.getWlxmlTag()).to.equal('header', 'tag is changed to header');
  87             });
  88
  89             it('knows WLXML class of a WLXML tag it renders', function(){
  90                 var c = canvas.fromXML('<section class="some.class.A"></section>'),
  91                     section = c.doc();
  92                 expect(section.getWlxmlClass()).to.equal('some.class.A');
  93                 section.setWlxmlClass('some.class.B');
  94                 expect(section.getWlxmlClass()).to.equal('some.class.B');
  95                 section.setWlxmlClass(null);
  96                 expect(section.getWlxmlClass()).to.be.undefined;
  97             });
  98
  99
 100
 101             describe('element has meta attributes', function() {
 102                 it('can change its meta attributes', function() {
 103                     var c = canvas.fromXML('<section><span class="uri" meta-uri="someuri"></span></section>'),
 104                     span = c.doc().children()[0];
 105
 106                     expect(span.getWlxmlMetaAttr('uri')).to.equal('someuri');
 107                     span.setWlxmlMetaAttr('uri', 'otheruri');
 108                     expect(span.getWlxmlMetaAttr('uri')).to.equal('otheruri');
 109                 });
 110
 111                 it('changes its meta attributes with class change', function() {
 112                     var c = canvas.fromXML('<section><span class="uri" meta-uri="someuri"></span></section>'),
 113                     span = c.doc().children()[0];
 114
 115                     expect(span.getWlxmlMetaAttr('uri')).to.equal('someuri');
 116                     span.setWlxmlClass('author');
 117                     expect(span.getWlxmlMetaAttr('uri')).to.be.undefined;
 118                 });
 119
 120                 it('keeps meta attribute value on class change if a new class has this attribute', function() {
 121                     var c = canvas.fromXML('<section><span class="uri" meta-uri="someuri"></span></section>'),
 122                     span = c.doc().children()[0];
 123                     span.setWlxmlClass('uri.some.subclass');
 124                     expect(span.getWlxmlMetaAttr('uri')).to.equal('someuri');
 125                 });
 126             });
 127         });
 128
 129         it('returns DocumentNodeElement instance from HTMLElement', function() {
 130             var c = canvas.fromXML('<section></section>'),
 131                 htmlElement = c.doc().dom().get(0),
 132                 element = c.getDocumentElement(htmlElement);
 133             expect(element).to.be.instanceOf(documentElement.DocumentNodeElement);
 134             expect(element.sameNode(c.doc()));
 135         });
 136
 137         it('returns DocumentTextElement instance from Text Node', function() {
 138             var c = canvas.fromXML('<section>Alice</section>'),
 139                 aliceElement = c.doc().children()[0],
 140                 textNode = aliceElement.dom().contents()[0],
 141                 element = c.getDocumentElement(textNode);
 142
 143             expect(textNode.nodeType).to.equal(Node.TEXT_NODE, 'text node selected');
 144             expect($(textNode).text()).to.equal('Alice');
 145
 146             expect(element).to.be.instanceOf(documentElement.DocumentTextElement);
 147             expect(element.sameNode(c.doc().children()[0]));
 148         });
 149     });
 150
 151
 152
 153     describe('document representation api', function() {
 154         describe('document root element', function() {
 155             var c = canvas.fromXML('<section></section>');
 156             it('exists', function() {
 157                 expect(c.doc()).to.be.instanceOf(documentElement.DocumentElement);
 158             });
 159             it('is of type DocumentNodeElement', function() {
 160                 expect(c.doc()).to.be.instanceOf(documentElement.DocumentNodeElement);
 161             });
 162         });
 163
 164         describe('DocumentElements comparison', function() {
 165             it('reports dwo DocumentElements to be the same when they represent the same wlxml document element', function() {
 166                 var c = canvas.fromXML('<section><div></div><div></div></section>'),
 167                     first_div1 = c.doc().children()[0],
 168                     first_div2 = c.doc().children()[0],
 169                     second_div = c.doc().children()[1];
 170                 expect(first_div1.sameNode(first_div1)).to.be.true;
 171                 expect(first_div1.sameNode(first_div2)).to.be.true;
 172                 expect(first_div1.sameNode(second_div)).to.be.false;
 173             });
 174         });
 175
 176         describe('traversing', function() {
 177             it('reports element nodes', function() {
 178                 var c = canvas.fromXML('<section><div></div></section>'),
 179                     children = c.doc().children();
 180                 expect(children.length).to.equal(1);
 181                 expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 182
 183                 c = canvas.fromXML('<section><div></div><div></div></section>'),
 184                     children = c.doc().children();
 185                 expect(children.length).to.equal(2);
 186                 expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 187                 expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 188             });
 189
 190             it('reports text nodes', function() {
 191                 var c = canvas.fromXML('<section>Alice</section>'),
 192                     children = c.doc().children();
 193                 expect(children.length).to.equal(1);
 194                 expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 195             });
 196
 197             describe('accessing parents', function() {
 198                 it('returns DocumentNodeElement representing parent in wlxml document as DocumentNodeElement parent', function() {
 199                     var c = canvas.fromXML('<section><div></div></section>'),
 200                         div = c.doc().children()[0];
 201                     expect(div.parent().sameNode(c.doc())).to.be.true;
 202                 });
 203                 it('returns DocumentNodeElement representing parent in wlxml document as DocumentTextElement parent', function() {
 204                     var c = canvas.fromXML('<section>Alice</section>'),
 205                         text = c.doc().children()[0];
 206                     expect(text.parent().sameNode(c.doc())).to.be.true;
 207                 });
 208             });
 209
 210             describe('free text handling', function() {
 211                     it('sees free text', function() {
 212                         var c = canvas.fromXML('<section>Alice <span>has</span> a cat</section>'),
 213                             children = c.doc().children();
 214                         expect(children.length).to.equal(3);
 215                         expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 216                         expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 217                         expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
 218                     });
 219             });
 220
 221             describe('white characters handling', function() {
 222                 it('says empty element node has no children', function() {
 223                     var c = canvas.fromXML('<section></section>');
 224                     expect(c.doc().children().length).to.equal(0);
 225                 });
 226                 it('says element node with one space has one DocumentTextElement', function() {
 227                     var c = canvas.fromXML('<section> </section>');
 228                     expect(c.doc().children().length).to.equal(1);
 229                     expect(c.doc().children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 230                     expect(c.doc().children()[0].getText()).to.equal(' ');
 231                 });
 232                 it('ignores white space surrounding block elements', function() {
 233                     var c = canvas.fromXML('<section> <div></div> </section>');
 234                     var children = c.doc().children();
 235                     expect(children.length).to.equal(1);
 236                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 237                 });
 238                 it('ignores white space between block elements', function() {
 239                     var c = canvas.fromXML('<section><div></div> <div></div></section>');
 240                     var children = c.doc().children();
 241                     expect(children.length === 2);
 242                     [0,1].forEach(function(idx) {
 243                         expect(children[idx]).to.be.instanceOf(documentElement.DocumentNodeElement);
 244                     });
 245                 });
 246
 247                 it('trims white space from the beginning and the end of the block elements', function() {
 248                     var c = canvas.fromXML('<section> Alice <span>has</span> a cat </section>');
 249                     expect(c.doc().children()[0].getText()).to.equal('Alice ');
 250                     expect(c.doc().children()[2].getText()).to.equal(' a cat');
 251                 });
 252
 253                 it('normalizes string of white characters to one space at the inline element boundries', function() {
 254                     var c = canvas.fromXML('<span>   Alice has a cat   </span>');
 255                     expect(c.doc().children()[0].getText()).to.equal(' Alice has a cat ');
 256                 });
 257
 258                 it('normalizes string of white characters to one space before inline element', function() {
 259                     var c = canvas.fromXML('<div>Alice has  <span>a cat</span></div>');
 260                     expect(c.doc().children()[0].getText()).to.equal('Alice has ');
 261                 });
 262
 263                 it('normalizes string of white characters to one space after inline element', function() {
 264                     var c = canvas.fromXML('<div>Alice has <span>a</span>  cat</div>');
 265                     expect(c.doc().children()[2].getText()).to.equal(' cat');
 266                 });
 267             });
 268
 269             describe('getting vertically first text element', function() {
 270                 it('returns the first child if it\'s text element, ignores metadata', function() {
 271                     var c = canvas.fromXML('<section><metadata><dc:author>author</dc:author></metadata>Alice<div>has</div>a cat</section>'),
 272                         first = c.doc().getVerticallyFirstTextElement();
 273
 274                     expect(first.sameNode(c.doc().children()[1])).to.be.true;
 275                 });
 276
 277                 it('looks recursively inside node elements if they precede text element', function() {
 278                     var c = canvas.fromXML('\
 279                             <section>\
 280                                 <div>\
 281                                     <div>\
 282                                         Alice\
 283                                     </div>\
 284                                 </div>\
 285                                 Some text\
 286                             </section>'),
 287                         textAlice = c.doc().children()[0].children()[0].children()[0],
 288                         first = c.doc().getVerticallyFirstTextElement();
 289
 290                     expect(textAlice).to.be.instanceOf(documentElement.DocumentTextElement);
 291                     expect(first.sameNode(textAlice)).to.be.true;
 292                 });
 293             });
 294         });
 295
 296         describe('manipulation api', function() {
 297
 298             describe('Basic Element inserting', function() {
 299                 it('can put new NodeElement at the end', function() {
 300                     var c = canvas.fromXML('<section></section>'),
 301                         appended = c.doc().append({tag: 'header', klass: 'some.class'}),
 302                         children = c.doc().children();
 303
 304                     expect(children.length).to.equal(1);
 305                     expect(children[0].sameNode(appended)).to.be.true;
 306                 });
 307
 308                 it('can put new TextElement at the end', function() {
 309                     var c = canvas.fromXML('<section></section>'),
 310                         appended = c.doc().append({text: 'Alice'}),
 311                         children = c.doc().children();
 312
 313                     expect(children.length).to.equal(1);
 314                     expect(children[0].sameNode(appended)).to.be.true;
 315                     expect(children[0].getText()).to.equal('Alice');
 316                 });
 317
 318                 it('can put new NodeElement after another NodeElement', function() {
 319                     var c = canvas.fromXML('<section><div></div></section>'),
 320                         div = c.doc().children()[0],
 321                         added = div.after({tag: 'header', klass: 'some.class'}),
 322                         children = c.doc().children();
 323                     expect(children.length).to.equal(2);
 324                     expect(children[1].sameNode(added)).to.be.true;
 325                 });
 326
 327                 it('can put new Nodeelement before another element', function() {
 328                     var c = canvas.fromXML('<section><div></div></section>'),
 329                         div = c.doc().children()[0],
 330                         added = div.before({tag: 'header', klass: 'some.class'}),
 331                         children = c.doc().children();
 332                     expect(children.length).to.equal(2);
 333                     expect(children[0].sameNode(added)).to.be.true;
 334                 });
 335
 336                 it('can put new DocumentNodeElement after DocumentTextElement', function() {
 337                     var c = canvas.fromXML('<section>Alice</section>'),
 338                         text = c.doc().children()[0],
 339                         added = text.after({tag: 'p'}),
 340                         children = c.doc().children();
 341
 342                     expect(children.length).to.equal(2);
 343                     expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 344                     expect(children[0].getText()).to.equal('Alice');
 345                     expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 346                     expect(children[1].sameNode(added)).to.be.true;
 347                 });
 348                 it('can put new DocumentNodeElement before DocumentTextElement', function() {
 349                     var c = canvas.fromXML('<section>Alice</section>'),
 350                         text = c.doc().children()[0],
 351                         added = text.before({tag: 'p'}),
 352                         children = c.doc().children();
 353
 354                     expect(children.length).to.equal(2);
 355                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 356                     expect(children[0].sameNode(added)).to.be.true;
 357                     expect(children[1]).to.be.instanceOf(documentElement.DocumentTextElement);
 358                     expect(children[1].getText()).to.equal('Alice');
 359                 });
 360
 361                 it('can divide DocumentTextElement with a new DocumentNodeElement', function() {
 362                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 363                         section = c.doc(),
 364                         text = section.children()[0];
 365
 366                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 5}),
 367                         sectionChildren = section.children(),
 368                         lhsText = sectionChildren[0],
 369                         rhsText = sectionChildren[2];
 370
 371                     expect(lhsText.getText()).to.equal('Alice');
 372                     expect(returned.sameNode(sectionChildren[1]));
 373                     expect(rhsText.getText()).to.equal(' has a cat');
 374                 });
 375
 376                 it('treats dividing DocumentTextElement at the very end as appending after it', function() {
 377                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 378                         section = c.doc(),
 379                         text = section.children()[0];
 380
 381                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 15}),
 382                         sectionChildren = section.children(),
 383                         textElement = sectionChildren[0],
 384                         nodeElement = sectionChildren[1];
 385
 386                     expect(sectionChildren.length).to.equal(2);
 387                     expect(textElement.getText()).to.equal('Alice has a cat');
 388                     expect(returned.sameNode(nodeElement)).to.be.true;
 389                     expect(nodeElement.getWlxmlTag()).to.equal('aside');
 390                 });
 391
 392                 it('treats dividing DocumentTextElement at the very beginning as appending before it', function() {
 393                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 394                         section = c.doc(),
 395                         text = section.children()[0];
 396
 397                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 0}),
 398                         sectionChildren = section.children(),
 399                         nodeElement = sectionChildren[0],
 400                         textElement = sectionChildren[1];
 401
 402                     expect(sectionChildren.length).to.equal(2);
 403                     expect(textElement.getText()).to.equal('Alice has a cat');
 404                     expect(returned.sameNode(nodeElement)).to.be.true;
 405                     expect(nodeElement.getWlxmlTag()).to.equal('aside');
 406                 });
 407             });
 408
 409             describe('Splitting text', function() {
 410
 411                 it('splits DocumentTextElement\'s parent into two DocumentNodeElements of the same type', function() {
 412                     var c = canvas.fromXML('<section><header>Some header</header></section>'),
 413                         section = c.doc(),
 414                         text = section.children()[0].children()[0];
 415
 416                     var returnedValue = text.split({offset: 5});
 417                     expect(section.children().length).to.equal(2, 'section has two children');
 418
 419                     var header1 = section.children()[0];
 420                     var header2 = section.children()[1];
 421
 422                     expect(header1.getWlxmlTag()).to.equal('header', 'first section child represents wlxml header');
 423                     expect(header1.children().length).to.equal(1, 'first header has one text child');
 424                     expect(header1.children()[0].getText()).to.equal('Some ', 'first header has correct content');
 425                     expect(header2.getWlxmlTag()).to.equal('header', 'second section child represents wlxml header');
 426                     expect(header2.children().length).to.equal(1, 'second header has one text child');
 427                     expect(header2.children()[0].getText()).to.equal('header', 'second header has correct content');
 428
 429                     expect(returnedValue.first.sameNode(header1)).to.equal(true, 'first node returnde');
 430                     expect(returnedValue.second.sameNode(header2)).to.equal(true, 'second node returned');
 431                 });
 432
 433                 it('leaves empty copy of DocumentNodeElement if splitting at the very beginning', function() {
 434                         var c = canvas.fromXML('<section><header>Some header</header></section>'),
 435                         section = c.doc(),
 436                         text = section.children()[0].children()[0];
 437
 438                         text.split({offset: 0});
 439
 440                         var header1 = section.children()[0];
 441                         var header2 = section.children()[1];
 442
 443                         expect(header1.children().length).to.equal(0);
 444                         expect(header2.children()[0].getText()).to.equal('Some header');
 445                 });
 446
 447                 it('leaves empty copy of DocumentNodeElement if splitting at the very end', function() {
 448                         var c = canvas.fromXML('<section><header>Some header</header></section>'),
 449                         section = c.doc(),
 450                         text = section.children()[0].children()[0];
 451
 452                         text.split({offset: 11});
 453
 454                         var header1 = section.children()[0];
 455                         var header2 = section.children()[1];
 456
 457                         expect(header1.children()[0].getText()).to.equal('Some header');
 458                         expect(header2.children().length).to.equal(0);
 459                 });
 460
 461                 it('keeps DocumentTextElement\'s parent\'s children elements intact', function() {
 462                     var c = canvas.fromXML('\
 463                             <section>\
 464                                 <header>\
 465                                     A <span>fancy</span> and <span>nice</span> header\
 466                                 </header>\
 467                             </section>'),
 468                         section = c.doc(),
 469                         header = section.children()[0],
 470                         textAnd = header.children()[2];
 471
 472                     textAnd.split({offset: 2});
 473
 474                     var sectionChildren = section.children();
 475                     expect(sectionChildren.length).to.equal(2, 'Section has two children');
 476                     expect(sectionChildren[0].getWlxmlTag()).to.equal('header', 'First section element is a wlxml header');
 477                     expect(sectionChildren[1].getWlxmlTag()).to.equal('header', 'Second section element is a wlxml header');
 478
 479                     var firstHeaderChildren = sectionChildren[0].children();
 480                     expect(firstHeaderChildren.length).to.equal(3, 'First header has three children');
 481                     expect(firstHeaderChildren[0].getText()).to.equal('A ', 'First header starts with a text');
 482                     expect(firstHeaderChildren[1].getWlxmlTag()).to.equal('span', 'First header has span in the middle');
 483                     expect(firstHeaderChildren[2].getText()).to.equal(' a', 'First header ends with text');
 484
 485                     var secondHeaderChildren = sectionChildren[1].children();
 486                     expect(secondHeaderChildren.length).to.equal(3, 'Second header has three children');
 487                     expect(secondHeaderChildren[0].getText()).to.equal('nd ', 'Second header starts with text');
 488                     expect(secondHeaderChildren[1].getWlxmlTag()).to.equal('span', 'Second header has span in the middle');
 489                     expect(secondHeaderChildren[2].getText()).to.equal(' header', 'Second header ends with text');
 490                 });
 491             });
 492
 493             describe('wrapping', function() {
 494                 it('wraps DocumentNodeElement', function() {
 495                     var c = canvas.fromXML('<section><div></div></section>'),
 496                         div = c.doc().children()[0];
 497
 498                     var returned = div.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
 499                         parent = div.parent(),
 500                         parent2 = c.doc().children()[0];
 501
 502                     expect(returned.sameNode(parent)).to.be.true;
 503                     expect(returned.sameNode(parent2)).to.be.true;
 504                     expect(returned.getWlxmlTag()).to.equal('header');
 505                     expect(returned.getWlxmlClass()).to.equal('some.class');
 506                 });
 507                 it('wraps DocumentTextElement', function() {
 508                     var c = canvas.fromXML('<section>Alice</section>'),
 509                         text = c.doc().children()[0];
 510
 511                     var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
 512                         parent = text.parent(),
 513                         parent2 = c.doc().children()[0];
 514
 515                     expect(returned.sameNode(parent)).to.be.true;
 516                     expect(returned.sameNode(parent2)).to.be.true;
 517                     expect(returned.getWlxmlTag()).to.equal('header');
 518                     expect(returned.getWlxmlClass()).to.equal('some.class');
 519                 });
 520
 521                 describe('wrapping part of DocumentTextElement', function() {
 522                     [{start: 5, end: 12}, {start: 12, end: 5}].forEach(function(offsets) {
 523                         it('wraps in the middle ' + offsets.start + '/' + offsets.end, function() {
 524                             var c = canvas.fromXML('<section>Alice has a cat</section>'),
 525                                 text = c.doc().children()[0];
 526
 527                             var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: offsets.start, end: offsets.end}),
 528                                 children = c.doc().children();
 529
 530                             expect(children.length).to.equal(3);
 531
 532                             expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 533                             expect(children[0].getText()).to.equal('Alice');
 534
 535                             expect(children[1].sameNode(returned)).to.be.true;
 536                             expect(returned.getWlxmlTag()).to.equal('header');
 537                             expect(returned.getWlxmlClass()).to.equal('some.class');
 538                             expect(children[1].children().length).to.equal(1);
 539                             expect(children[1].children()[0].getText()).to.equal(' has a ');
 540
 541                             expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
 542                             expect(children[2].getText()).to.equal('cat');
 543                         });
 544                     });
 545
 546                     it('wraps whole text inside DocumentTextElement if offsets span entire content', function() {
 547                          var c = canvas.fromXML('<section>Alice has a cat</section>'),
 548                              text = c.doc().children()[0];
 549
 550                          var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: 0, end: 15}),
 551                              children = c.doc().children();
 552
 553                          expect(children.length).to.equal(1);
 554                          expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 555                          expect(children[0].children()[0].getText()).to.equal('Alice has a cat');
 556                     });
 557                 });
 558
 559                 it('wraps text spanning multiple sibling DocumentTextNodes', function() {
 560                     var c = canvas.fromXML('<section>Alice has a <span>small</span> cat</section>'),
 561                         section = c.doc(),
 562                         wrapper = c.wrapText({
 563                             inside: section,
 564                             _with: {tag: 'span', klass: 'some.class'},
 565                             offsetStart: 6,
 566                             offsetEnd: 4,
 567                             textNodeIdx: [0,2]
 568                         });
 569
 570                     expect(section.children().length).to.equal(2);
 571                     expect(section.children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 572                     expect(section.children()[0].getText()).to.equal('Alice ');
 573
 574                     var wrapper2 = section.children()[1];
 575                     expect(wrapper2.sameNode(wrapper)).to.be.true;
 576
 577                     var wrapperChildren = wrapper.children();
 578                     expect(wrapperChildren.length).to.equal(3);
 579                     expect(wrapperChildren[0].getText()).to.equal('has a ');
 580
 581                     expect(wrapperChildren[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 582                     expect(wrapperChildren[1].children().length).to.equal(1);
 583                     expect(wrapperChildren[1].children()[0].getText()).to.equal('small');
 584
 585                     expect(wrapperChildren[2].getText()).to.equal(' cat');
 586                 });
 587             });
 588
 589             describe('unwrapping', function() {
 590                 it('unwraps DocumentTextElement from its parent DocumentNodeElement if it\'s its only child', function() {
 591                     var c = canvas.fromXML('<section>Alice <span>has a</span> cat</section>'),
 592                     section = c.doc(),
 593                     text = section.children()[1].children()[0];
 594
 595                     var newTextContainer = text.unwrap();
 596
 597                     expect(section.children().length).to.equal(1, 'section has one child');
 598                     expect(section.children()[0].getText()).to.equal('Alice has a cat');
 599                     expect(newTextContainer.sameNode(c.doc())).to.equal(true, 'unwrap returns new text parent DocumentNodeElement');
 600                 })
 601             });
 602         });
 603
 604         describe('Lists api', function() {
 605             describe('creating lists', function() {
 606                 it('allows creation of a list from existing sibling DocumentElements', function() {
 607                     var c = canvas.fromXML('\
 608                         <section>\
 609                             Alice\
 610                             <div>has</div>\
 611                             a\
 612                             <div>cat</div>\
 613                         </section>'),
 614                         section = c.doc(),
 615                         textHas = section.children()[1],
 616                         divA = section.children()[2]
 617
 618                     c.list.create({element1: textHas, element2: divA});
 619
 620                     expect(section.children().length).to.equal(3, 'section has three child elements');
 621
 622                     var child1 = section.children()[0],
 623                         list = section.children()[1],
 624                         child3 = section.children()[2];
 625
 626                     expect(child1.getText()).to.equal('Alice');
 627                     expect(list.is('list')).to.equal(true, 'second child is a list');
 628                     expect(list.children().length).to.equal(2, 'list contains two elements');
 629                     list.children().forEach(function(child) {
 630                         expect(child.getWlxmlClass()).to.equal('item', 'list childs have wlxml class of item');
 631                     });
 632                     expect(child3.children()[0].getText()).to.equal('cat');
 633                 });
 634
 635                 it('allows creating nested list from existing sibling list items', function() {
 636                     var c = canvas.fromXML('\
 637                         <section>\
 638                             <div class="list-items">\
 639                                 <div class="item">A</div>\
 640                                 <div class="item">B</div>\
 641                                 <div class="item">C</div>\
 642                                 <div class="item">D</div>\
 643                             </div>\
 644                         </section>'),
 645                         outerList = c.doc().children()[0],
 646                         itemB = outerList.children()[1],
 647                         itemC = outerList.children()[2];
 648
 649
 650                         c.list.create({element1: itemB, element2: itemC});
 651
 652                     var outerListItems = outerList.children(),
 653                         innerList = outerListItems[1].children()[0],
 654                         innerListItems = innerList.children();
 655
 656                     expect(outerListItems.length).to.equal(3, 'outer list has three items');
 657                     expect(outerListItems[0].children()[0].getText()).to.equal('A', 'first outer item ok');
 658                     expect(outerListItems[1].getWlxmlClass()).to.equal('item', 'inner list is wrapped by item element');
 659
 660                     expect(innerList.is('list')).to.equal(true, 'inner list created');
 661                     expect(innerListItems.length).to.equal(2, 'inner list has two items');
 662                     expect(innerListItems[0].children()[0].getText()).to.equal('B', 'first inner item ok');
 663                     expect(innerListItems[1].children()[0].getText()).to.equal('C', 'second inner item ok');
 664
 665                     expect(outerListItems[2].children()[0].getText()).to.equal('D', 'last outer item ok');
 666
 667                 });
 668
 669             });
 670
 671             describe('extracting list items', function() {
 672                 it('creates two lists with extracted items in the middle if extracting from the middle of the list', function() {
 673                     var c = canvas.fromXML('\
 674                         <section>\
 675                             <div class="list.items">\
 676                                 <div class="item">0</div>\
 677                                 <div class="item">1</div>\
 678                                 <div class="item">2</div>\
 679                                 <div class="item">3</div>\
 680                             </div>\
 681                         </section>'),
 682                         list = c.doc().children()[0],
 683                         item1 = list.children()[1],
 684                         item2 = list.children()[2];
 685
 686                     c.list.extractItems({element1: item1, element2: item2});
 687
 688                     var section = c.doc(),
 689                         list1 = section.children()[0],
 690                         oldItem1 = section.children()[1],
 691                         oldItem2 = section.children()[2],
 692                         list2 = section.children()[3];
 693
 694                     expect(section.children().length).to.equal(4, 'section contains four children');
 695
 696                     expect(list1.is('list')).to.equal(true, 'first section child is a list');
 697                     expect(list1.children().length).to.equal(1, 'first list has one child');
 698                     expect(list1.children()[0].children()[0].getText()).to.equal('0', 'first item of the first list is a first item of the original list');
 699
 700                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item got extracted');
 701                     expect(oldItem1.getWlxmlClass() === undefined).to.equal(true, 'first extracted element has no wlxml class');
 702
 703                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item got extracted');
 704                     expect(oldItem2.getWlxmlClass() === undefined).to.equal(true, 'second extracted element has no wlxml class');
 705
 706                     expect(list2.is('list')).to.equal(true, 'last section child is a list');
 707                     expect(list2.children().length).to.equal(1, 'second list has one child');
 708                     expect(list2.children()[0].children()[0].getText()).to.equal('3', 'first item of the second list is a last item of the original list');
 709                 });
 710
 711                 it('puts extracted items above the list if starting item is the first one', function() {
 712                     var c = canvas.fromXML('\
 713                         <section>\
 714                             <div class="list.items">\
 715                                 <div class="item">0</div>\
 716                                 <div class="item">1</div>\
 717                                 <div class="item">2</div>\
 718                             </div>\
 719                         </section>'),
 720                         list = c.doc().children()[0],
 721                         item1 = list.children()[0],
 722                         item2 = list.children()[1],
 723                         item3 = list.children()[2];
 724
 725                     c.list.extractItems({element1: item1, element2: item2});
 726
 727                     var section = c.doc(),
 728                         oldItem1 = section.children()[0],
 729                         oldItem2 = section.children()[1],
 730                         newList = section.children()[2];
 731
 732                     expect(section.children().length).to.equal(3, 'section has three children');
 733                     expect(oldItem1.children()[0].getText()).to.equal('0', 'first item extracted');
 734                     expect(oldItem2.children()[0].getText()).to.equal('1', 'second item extracted');
 735                     expect(newList.is('list')).to.equal(true, 'list lies below extracted item');
 736                     expect(newList.children().length).to.equal(1, 'list has now one child');
 737                 });
 738
 739                 it('puts extracted items below the list if ending item is the last one', function() {
 740                     var c = canvas.fromXML('\
 741                         <section>\
 742                             <div class="list.items">\
 743                                 <div class="item">0</div>\
 744                                 <div class="item">1</div>\
 745                                 <div class="item">2</div>\
 746                             </div>\
 747                         </section>'),
 748                         list = c.doc().children()[0],
 749                         item1 = list.children()[0],
 750                         item2 = list.children()[1],
 751                         item3 = list.children()[2];
 752
 753                     c.list.extractItems({element1: item2, element2: item3});
 754
 755                     var section = c.doc(),
 756                         oldItem1 = section.children()[1],
 757                         oldItem2 = section.children()[2],
 758                         newList = section.children()[0];
 759
 760                     expect(section.children().length).to.equal(3, 'section has three children');
 761                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item extracted');
 762                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item extracted');
 763                     expect(newList.is('list')).to.equal(true, 'list lies above extracted item');
 764                     expect(newList.children().length).to.equal(1, 'list has now one child');
 765                 });
 766
 767                 it('removes list if all its items are extracted', function() {
 768                     var c = canvas.fromXML('\
 769                         <section>\
 770                             <div class="list.items">\
 771                                 <div class="item">some item</div>\
 772                                 <div class="item">some item 2</div>\
 773                             </div>\
 774                         </section>'),
 775                         list = c.doc().children()[0],
 776                         item1 = list.children()[0],
 777                         item2 = list.children()[1];
 778
 779                     c.list.extractItems({element1: item1, element2: item2});
 780
 781                     var section = c.doc(),
 782                         list1 = section.children()[0],
 783                         oldItem1 = section.children()[0],
 784                         oldItem2 = section.children()[1];
 785
 786                     expect(section.children().length).to.equal(2, 'section contains two children');
 787                     expect(oldItem1.children()[0].getText()).to.equal('some item');
 788                     expect(oldItem2.children()[0].getText()).to.equal('some item 2');
 789                 });
 790
 791                 it('creates two lists with extracted items in the middle if extracting from the middle of the list - nested case' , function() {
 792                     var c = canvas.fromXML('\
 793                         <section>\
 794                             <div class="list.items">\
 795                                 <div class="item">0</div>\
 796                                 <div class="item">\
 797                                     <div class="list.items">\
 798                                         <div class="item">1.1</div>\
 799                                         <div class="item">1.2</div>\
 800                                         <div class="item">1.3</div>\
 801                                     </div>\
 802                                 </div>\
 803                                 <div class="item">2</div>\
 804                             </div>\
 805                         </section>'),
 806                         list = c.doc().children()[0],
 807                         nestedList = list.children()[1].children()[0],
 808                         nestedListItem = nestedList.children()[1];
 809
 810                     c.list.extractItems({element1: nestedListItem, element2: nestedListItem});
 811
 812                     var section = c.doc(),
 813                         list = section.children()[0],
 814                         item1 = list.children()[0],
 815                         item2 = list.children()[1], //
 816                         item3 = list.children()[2],
 817                         item4 = list.children()[3], //
 818                         item5 = list.children()[4],
 819                         nestedList1 = item2.children()[0],
 820                         nestedList2 = item4.children()[0];
 821
 822                     expect(list.children().length).to.equal(5, 'top list has five items');
 823
 824                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 825
 826                     expect(item2.getWlxmlClass()).to.equal('item', 'first nested list is still wrapped in item element');
 827                     expect(nestedList1.children().length).to.equal(1, 'first nested list is left with one child');
 828                     expect(nestedList1.children()[0].children()[0].getText()).to.equal('1.1', 'first nested list item left alone');
 829
 830                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 831
 832                     expect(item4.getWlxmlClass()).to.equal('item', 'second nested list is still wrapped in item element');
 833                     expect(nestedList2.children().length).to.equal(1, 'second nested list is left with one child');
 834                     expect(nestedList2.children()[0].children()[0].getText()).to.equal('1.3', 'second nested list item left alone');
 835
 836                     expect(item5.children()[0].getText()).to.equal('2', 'last item ok');
 837                 });
 838
 839                 it('puts extracted items below the list if ending item is the last one - nested case' , function() {
 840                     var c = canvas.fromXML('\
 841                         <section>\
 842                             <div class="list.items">\
 843                                 <div class="item">0</div>\
 844                                 <div class="item">\
 845                                     <div class="list.items">\
 846                                         <div class="item">1.1</div>\
 847                                         <div class="item">1.2</div>\
 848                                         <div class="item">1.3</div>\
 849                                     </div>\
 850                                 </div>\
 851                                 <div class="item">2</div>\
 852                             </div>\
 853                         </section>'),
 854                         list = c.doc().children()[0],
 855                         nestedList = list.children()[1].children()[0],
 856                         nestedListItem1 = nestedList.children()[1],
 857                         nestedListItem2 = nestedList.children()[2];
 858
 859                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
 860
 861                     var section = c.doc(),
 862                         list = section.children()[0],
 863                         item1 = list.children()[0],
 864                         item2 = list.children()[1],
 865                         item3 = list.children()[2],
 866                         item4 = list.children()[3],
 867                         item5 = list.children()[4];
 868                     nestedList = item2.children()[0];
 869
 870                     expect(list.children().length).to.equal(5, 'top list has five items');
 871                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 872                     expect(item2.getWlxmlClass()).to.equal('item', 'nested list is still wrapped in item element');
 873                     expect(nestedList.children().length).to.equal(1, 'nested list is left with one child');
 874                     expect(nestedList.children()[0].children()[0].getText()).to.equal('1.1', 'nested list item left alone');
 875                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 876                     expect(item4.children()[0].getText()).to.equal('1.3', 'fourth item ok');
 877                     expect(item5.children()[0].getText()).to.equal('2', 'fifth item ok');
 878                 });
 879
 880                 it('puts extracted items above the list if starting item is the first one - nested case' , function() {
 881                     var c = canvas.fromXML('\
 882                         <section>\
 883                             <div class="list.items">\
 884                                 <div class="item">0</div>\
 885                                 <div class="item">\
 886                                     <div class="list.items">\
 887                                         <div class="item">1.1</div>\
 888                                         <div class="item">1.2</div>\
 889                                         <div class="item">1.3</div>\
 890                                     </div>\
 891                                 </div>\
 892                                 <div class="item">2</div>\
 893                             </div>\
 894                         </section>'),
 895                         list = c.doc().children()[0],
 896                         nestedList = list.children()[1].children()[0],
 897                         nestedListItem1 = nestedList.children()[0],
 898                         nestedListItem2 = nestedList.children()[1];
 899
 900                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
 901
 902                     var section = c.doc(),
 903                         list = section.children()[0],
 904                         item1 = list.children()[0],
 905                         item2 = list.children()[1],
 906                         item3 = list.children()[2],
 907                         item4 = list.children()[3],
 908                         item5 = list.children()[4];
 909                     nestedList = item4.children()[0];
 910
 911                     expect(list.children().length).to.equal(5, 'top list has five items');
 912                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 913                     expect(item2.children()[0].getText()).to.equal('1.1', 'second item ok');
 914                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 915
 916                     expect(item4.getWlxmlClass()).to.equal('item', 'nested list is still wrapped in item element');
 917                     expect(nestedList.children().length).to.equal(1, 'nested list is left with one child');
 918                     expect(nestedList.children()[0].children()[0].getText()).to.equal('1.3', 'nested list item left alone');
 919                     expect(item5.children()[0].getText()).to.equal('2', 'fifth item ok');
 920                 });
 921
 922                 it('removes list if all its items are extracted - nested case', function() {
 923                     var c = canvas.fromXML('\
 924                         <section>\
 925                             <div class="list.items">\
 926                                 <div class="item">0</div>\
 927                                 <div class="item">\
 928                                     <div class="list.items">\
 929                                         <div class="item">1.1</div>\
 930                                         <div class="item">1.2</div>\
 931                                     </div>\
 932                                 </div>\
 933                                 <div class="item">2</div>\
 934                             </div>\
 935                         </section>'),
 936                         list = c.doc().children()[0],
 937                         nestedList = list.children()[1].children()[0],
 938                         nestedListItem1 = nestedList.children()[0],
 939                         nestedListItem2 = nestedList.children()[1];
 940
 941                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
 942
 943                     var section = c.doc(),
 944                         list = section.children()[0],
 945                         item1 = list.children()[0],
 946                         item2 = list.children()[1],
 947                         item3 = list.children()[2],
 948                         item4 = list.children()[3];
 949
 950                     expect(list.children().length).to.equal(4, 'top list has four items');
 951                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 952                     expect(item2.children()[0].getText()).to.equal('1.1', 'second item ok');
 953                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 954                     expect(item4.children()[0].getText()).to.equal('2', 'fourth item ok');
 955                 });
 956
 957                 it('extracts items out of outer most list when merge flag is set to false', function() {
 958                     var c = canvas.fromXML('\
 959                         <section>\
 960                             <div class="list.items">\
 961                                 <div class="item">0</div>\
 962                                 <div class="item">\
 963                                     <div class="list.items">\
 964                                         <div class="item">1.1</div>\
 965                                         <div class="item">1.2</div>\
 966                                     </div>\
 967                                 </div>\
 968                                 <div class="item">2</div>\
 969                             </div>\
 970                         </section>'),
 971                         section = c.doc(),
 972                         list = section.children()[0],
 973                         nestedList = list.children()[1].children()[0],
 974                         nestedListItem = nestedList.children()[0];
 975
 976                     var test = c.list.extractItems({element1: nestedListItem, element2: nestedListItem, merge: false});
 977
 978                     expect(test).to.equal(true, 'extraction status ok');
 979
 980                     var sectionChildren = section.children(),
 981                         extractedItem = sectionChildren[1];
 982
 983                     expect(sectionChildren.length).to.equal(3, 'section has three children');
 984                     expect(sectionChildren[0].is('list')).to.equal(true, 'first child is a list');
 985
 986                     expect(extractedItem.getWlxmlTag()).to.equal('div', 'extracted item is a wlxml div');
 987                     expect(extractedItem.getWlxmlClass()).to.equal(undefined, 'extracted item has no wlxml class');
 988                     expect(extractedItem.children()[0].getText()).to.equal('1.1', 'extracted item ok');
 989                     expect(sectionChildren[2].is('list')).to.equal(true, 'second child is a list');
 990                 });
 991             });
 992         });
 993
 994     });
 995
 996     describe('Cursor', function() {
 997
 998         var getSelection;
 999
1000         var findTextNode = function(inside, text) {
1001             var nodes = inside.find(':not(iframe)').addBack().contents().filter(function() {
1002                 return this.nodeType === Node.TEXT_NODE && this.data === text;
1003             });
1004             if(nodes.length)
1005                 return nodes[0];
1006             return null;
1007         }
1008
1009         beforeEach(function() {
1010             getSelection = sinon.stub(window, 'getSelection');
1011         });
1012
1013         afterEach(function() {
1014             getSelection.restore();
1015         });
1016
1017         it('returns position when browser selection collapsed', function() {
1018             var c = canvas.fromXML('<section>Alice has a cat</section>'),
1019                 dom = c.doc().dom(),
1020                 text = findTextNode(dom, 'Alice has a cat');
1021
1022             expect(text.nodeType).to.equal(Node.TEXT_NODE, 'correct node selected');
1023             expect($(text).text()).to.equal('Alice has a cat');
1024
1025             getSelection.returns({
1026                 anchorNode: text,
1027                 focusNode: text,
1028                 anchorOffset: 5,
1029                 focusOffset: 5,
1030                 isCollapsed: true
1031             });
1032             var cursor = c.getCursor(),
1033                 position = cursor.getPosition();
1034
1035             expect(cursor.isSelecting()).to.equal(false, 'cursor is not selecting anything');
1036             expect(position.element.getText()).to.equal('Alice has a cat');
1037             expect(position.offset).to.equal(5);
1038             expect(position.offsetAtEnd).to.equal(false, 'offset is not at end');
1039
1040             getSelection.returns({
1041                 anchorNode: text,
1042                 focusNode: text,
1043                 anchorOffset: 15,
1044                 focusOffset: 15,
1045                 isCollapsed: true
1046             });
1047
1048             expect(cursor.getPosition().offsetAtEnd).to.equal(true, 'offset at end');
1049         });
1050
1051         it('returns boundries of selection when browser selection not collapsed', function() {
1052             var c = canvas.fromXML('<section>Alice <span>has</span> a <span>big</span> cat</section>'),
1053                 dom = c.doc().dom(),
1054                 text = {
1055                     alice: findTextNode(dom, 'Alice '),
1056                     has: findTextNode(dom, 'has'),
1057                     cat: findTextNode(dom, ' cat')
1058                 },
1059                 cursor = c.getCursor(),
1060                 aliceElement = c.getDocumentElement(text.alice),
1061                 catElement = c.getDocumentElement(text.cat);
1062
1063
1064                 [
1065                     {focus: text.alice, focusOffset: 1, anchor: text.cat,   anchorOffset: 2, selectionAnchor: catElement},
1066                     {focus: text.cat,   focusOffset: 2, anchor: text.alice, anchorOffset: 1, selectionAnchor: aliceElement}
1067                 ].forEach(function(s, idx) {
1068                     getSelection.returns({isColapsed: false, anchorNode: s.anchor, anchorOffset: s.anchorOffset, focusNode: s.focus, focusOffset: s.focusOffset});
1069
1070                     var selectionStart = cursor.getSelectionStart(),
1071                         selectionEnd = cursor.getSelectionEnd(),
1072                         selectionAnchor = cursor.getSelectionAnchor();
1073
1074                     expect(cursor.isSelecting()).to.equal(true, 'cursor is selecting');
1075                     expect(selectionStart.element.sameNode(aliceElement)).to.equal(true, '"Alice" is the start of the selection ' + idx);
1076                     expect(selectionStart.offset).to.equal(1, '"Alice" offset ok' + idx);
1077                     expect(selectionEnd.element.sameNode(catElement)).to.equal(true, '"Cat" is the start of the selection ' + idx);
1078                     expect(selectionEnd.offset).to.equal(2, '"Cat" offset ok' + idx);
1079                     expect(selectionAnchor.element.sameNode(s.selectionAnchor)).to.equal(true, 'anchor ok');
1080                     expect(selectionAnchor.offset).to.equal(s.anchorOffset, 'anchor offset ok');
1081                 });
1082         });
1083
1084         it('recognizes when browser selection boundries lies in sibling DocumentTextElements', function() {
1085             var c = canvas.fromXML('<section>Alice <span>has</span> a <span>big</span> cat</section>'),
1086                 dom = c.doc().dom(),
1087                 text = {
1088                     alice: findTextNode(dom, 'Alice '),
1089                     has: findTextNode(dom, 'has'),
1090                     a: findTextNode(dom, ' a '),
1091                     big: findTextNode(dom, 'big'),
1092                     cat: findTextNode(dom, ' cat'),
1093                 },
1094                 cursor = c.getCursor();
1095
1096             expect($(text.alice).text()).to.equal('Alice ');
1097             expect($(text.has).text()).to.equal('has');
1098             expect($(text.a).text()).to.equal(' a ');
1099             expect($(text.big).text()).to.equal('big');
1100             expect($(text.cat).text()).to.equal(' cat');
1101
1102             getSelection.returns({anchorNode: text.alice, focusNode: text.a});
1103             expect(cursor.isSelectingSiblings()).to.equal(true, '"Alice" and "a" are children');
1104
1105             getSelection.returns({anchorNode: text.alice, focusNode: text.cat});
1106             expect(cursor.isSelectingSiblings()).to.equal(true, '"Alice" and "cat" are children');
1107
1108             getSelection.returns({anchorNode: text.alice, focusNode: text.has});
1109             expect(cursor.isSelectingSiblings()).to.equal(false, '"Alice" and "has" are not children');
1110
1111             getSelection.returns({anchorNode: text.has, focusNode: text.big});
1112             expect(cursor.isSelectingSiblings()).to.equal(false, '"has" and "big" are not children');
1113
1114         })
1115
1116         describe('zero width space handling', function() {
1117             it('position range includes ZWS at the boundries of text in case when native selection api doesn\'t', function() {
1118                 var c = canvas.fromXML("<section>Alice</section>"),
1119                     dom = c.doc().dom(),
1120                     textNode = findTextNode(dom, 'Alice'),
1121                     cursor = c.getCursor();
1122
1123                 textNode.data = utils.unicode.ZWS + 'Alice';
1124                 getSelection.returns({anchorNode: textNode, anchorOffset: 1, focusNode: textNode, focusOffset: 1});
1125                 expect(cursor.getPosition().offset).to.equal(0);
1126                 expect(cursor.getPosition().offsetAtBeginning).to.equal(true, 'offset at beginning');
1127
1128                 textNode.data = 'Alice' + utils.unicode.ZWS;
1129                 getSelection.returns({anchorNode: textNode, anchorOffset: 5, focusNode: textNode, focusOffset: 5});
1130                 expect(cursor.getPosition().offset).to.equal(6);
1131                 expect(cursor.getPosition().offsetAtEnd).to.equal(true, 'offset at end');
1132             });
1133         });
1134     });
1135
1136     describe('Serializing document to WLXML', function() {
1137         it('keeps document intact when no changes have been made', function() {
1138             var xmlIn = '<section>Alice<div>has</div>a <span class="uri" meta-uri="http://cat.com">cat</span>!</section>',
1139                 c = canvas.fromXML(xmlIn),
1140                 xmlOut = c.toXML();
1141
1142             var parser = new DOMParser(),
1143                 input = parser.parseFromString(xmlIn, "application/xml").childNodes[0],
1144                 output = parser.parseFromString(xmlOut, "application/xml").childNodes[0];
1145
1146             expect(input.isEqualNode(output)).to.be.true;
1147         });
1148
1149         it('keeps arbitrary node attributes intact', function() {
1150             var xmlIn = '<section a="1" xmlns:dcterms="http://purl.org/dc/terms/"></section>',
1151                 $xmlOut = $(canvas.fromXML(xmlIn).toXML());
1152
1153             expect($xmlOut.attr('a')).to.equal('1');
1154             expect($xmlOut.attr('xmlns:dcterms')).to.equal('http://purl.org/dc/terms/');
1155         });
1156
1157         it('doesn\' serialize meta attribute if its empty', function() {
1158             var c;
1159
1160             c = canvas.fromXML('<section class="uri" meta-uri="some.uri"></section>');
1161             c.doc().setWlxmlMetaAttr('uri', '');
1162             expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'overriding attribute with zero length string');
1163
1164             c = canvas.fromXML('<section class="uri"></section>');
1165             c.doc().setWlxmlMetaAttr('uri', '');
1166             expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'setting attribute to zero length string');
1167         });
1168
1169         describe('output xml', function() {
1170             it('keeps entities intact', function() {
1171                 var xmlIn = '<section>&lt; &gt;</section>',
1172                     c = canvas.fromXML(xmlIn),
1173                     xmlOut = c.toXML();
1174                 expect(xmlOut).to.equal(xmlIn);
1175             });
1176             it('keeps entities intact when they form html/xml', function() {
1177                 var xmlIn = '<section>&lt;abc&gt;</section>',
1178                     c = canvas.fromXML(xmlIn),
1179                     xmlOut = c.toXML();
1180                 expect(xmlOut).to.equal(xmlIn);
1181             });
1182         });
1183
1184         describe('formatting output xml', function() {
1185             /*it('keeps white spaces at the edges of input xml', function() {
1186                 var xmlIn = '  <section></section>  ',
1187                 c = canvas.fromXML(xmlIn),
1188                 xmlOut = c.toXML();
1189
1190                 expect(xmlOut.substr(4)).to.equal('   <', 'start');
1191                 expect(xmlOut.substr(-2)).to.equal('>  ', 'end');
1192             });*/
1193             it('keeps white space between XML nodes', function() {
1194                 var xmlIn = '<section>\n\n\n<div></div>\n\n\n<div></div>\n\n\n</section>',
1195                 c = canvas.fromXML(xmlIn),
1196                 xmlOut = c.toXML();
1197
1198                 var partsIn = xmlIn.split('\n\n\n'),
1199                     partsOut = xmlOut.split('\n\n\n');
1200
1201                 expect(partsIn).to.deep.equal(partsOut);
1202             });
1203
1204             it('keeps white space between XML nodes - inline case', function() {
1205                 var xmlIn = '<section>\n\n\n<span></span>\n\n\n<span></span>\n\n\n</section>',
1206                 c = canvas.fromXML(xmlIn),
1207                 xmlOut = c.toXML();
1208
1209                 var partsIn = xmlIn.split('\n\n\n'),
1210                     partsOut = xmlOut.split('\n\n\n');
1211
1212                 expect(partsIn).to.deep.equal(partsOut);
1213             });
1214
1215             it('keeps white space at the beginning of text', function() {
1216                 var xmlIn = '<section>    abc<div>some div</div>    abc</section>',
1217                     c = canvas.fromXML(xmlIn),
1218                     xmlOut = c.toXML();
1219
1220                 expect(xmlOut).to.equal(xmlIn);
1221             });
1222
1223             it('nests new children block elements', function() {
1224                 var c = canvas.fromXML('<section></section>');
1225
1226                 c.doc().append({tag: 'header'});
1227
1228                 var xmlOut = c.toXML();
1229                 expect(xmlOut.split('\n  ')[0]).to.equal('<section>', 'nesting start ok');
1230                 expect(xmlOut.split('\n').slice(-1)[0]).to.equal('</section>', 'nesting end ok');
1231
1232             });
1233
1234             it('doesn\'t nest new children inline elements', function() {
1235                 var c = canvas.fromXML('<section></section>');
1236
1237                 c.doc().append({tag: 'span'});
1238
1239                 var xmlOut = c.toXML();
1240                 expect(xmlOut).to.equal('<section><span></span></section>');
1241             });
1242
1243             it('keeps original white space at the end of text', function() {
1244
1245                 var xmlIn = '<header>    Some text ended with white space \
1246                 \
1247                 <span class="uri">Some text</span> some text\
1248             \
1249             </header>',
1250                     c = canvas.fromXML(xmlIn);
1251
1252             var xmlOut = c.toXML();
1253             console.log(xmlOut);
1254             expect(xmlOut).to.equal(xmlIn);
1255             });
1256
1257             it('keeps white space around text node', function() {
1258                 var xmlIn = '<section>\
1259                 <header>header1</header>\
1260                 Some text surrounded by white space\
1261                 <header>header2</header>\
1262             </section>',
1263                     c = canvas.fromXML(xmlIn);
1264
1265                 var xmlOut = c.toXML();
1266                 expect(xmlOut).to.equal(xmlIn);
1267             });
1268
1269             it('keeps white space around text node - last node case', function() {
1270                 var xmlIn = '<section>\
1271                 <header>header</header>\
1272                     \
1273                 Some text surrounded by white space\
1274                     \
1275             </section>',
1276                     c = canvas.fromXML(xmlIn);
1277
1278                 var xmlOut = c.toXML();
1279                 expect(xmlOut).to.equal(xmlIn);
1280             });
1281
1282             it('keeps white space after detaching text element', function() {
1283                 var xmlIn = '<section><header>header</header>\n\
1284                     \n\
1285                 text1\n\
1286                     \n\
1287             </section>',
1288                     expectedXmlOut = '<section><header>header</header>\n\
1289                     \n\
1290                 \n\
1291                     \n\
1292             </section>',
1293                     c = canvas.fromXML(xmlIn),
1294                     children = c.doc().children(),
1295                     text = children[children.length-1];
1296
1297                 expect(text.getText()).to.equal('text1');
1298
1299                 text.detach();
1300
1301                 var xmlOut = c.toXML();
1302                 expect(xmlOut).to.equal(expectedXmlOut);
1303             });
1304
1305         })
1306     })
1307 });
1308
1309
1310 });