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 at the beginning', function() {
 319                     var c = canvas.fromXML('<section><div></div></section>'),
 320                         prepended = c.doc().prepend({tag: 'header', klass: 'some.class'}),
 321                         children = c.doc().children();
 322
 323                     expect(children).to.have.length(2);
 324                     expect(children[0].sameNode(prepended)).to.be.true;
 325                 });
 326
 327                 it('can put new TextElement at the beginning', function() {
 328                     var c = canvas.fromXML('<section><div></div></section>'),
 329                         prepended = c.doc().prepend({text: 'Alice'}),
 330                         children = c.doc().children();
 331
 332                     expect(children).to.have.length(2)
 333                     expect(children[0].sameNode(prepended)).to.be.true;
 334                     expect(children[0].getText()).to.equal('Alice');
 335                 });
 336
 337                 it('can put new NodeElement after another NodeElement', function() {
 338                     var c = canvas.fromXML('<section><div></div></section>'),
 339                         div = c.doc().children()[0],
 340                         added = div.after({tag: 'header', klass: 'some.class'}),
 341                         children = c.doc().children();
 342                     expect(children.length).to.equal(2);
 343                     expect(children[1].sameNode(added)).to.be.true;
 344                 });
 345
 346                 it('can put new Nodeelement before another element', function() {
 347                     var c = canvas.fromXML('<section><div></div></section>'),
 348                         div = c.doc().children()[0],
 349                         added = div.before({tag: 'header', klass: 'some.class'}),
 350                         children = c.doc().children();
 351                     expect(children.length).to.equal(2);
 352                     expect(children[0].sameNode(added)).to.be.true;
 353                 });
 354
 355                 it('can put new DocumentNodeElement after DocumentTextElement', function() {
 356                     var c = canvas.fromXML('<section>Alice</section>'),
 357                         text = c.doc().children()[0],
 358                         added = text.after({tag: 'p'}),
 359                         children = c.doc().children();
 360
 361                     expect(children.length).to.equal(2);
 362                     expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 363                     expect(children[0].getText()).to.equal('Alice');
 364                     expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 365                     expect(children[1].sameNode(added)).to.be.true;
 366                 });
 367                 it('can put new DocumentNodeElement before DocumentTextElement', function() {
 368                     var c = canvas.fromXML('<section>Alice</section>'),
 369                         text = c.doc().children()[0],
 370                         added = text.before({tag: 'p'}),
 371                         children = c.doc().children();
 372
 373                     expect(children.length).to.equal(2);
 374                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 375                     expect(children[0].sameNode(added)).to.be.true;
 376                     expect(children[1]).to.be.instanceOf(documentElement.DocumentTextElement);
 377                     expect(children[1].getText()).to.equal('Alice');
 378                 });
 379
 380                 it('can divide DocumentTextElement with a new DocumentNodeElement', function() {
 381                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 382                         section = c.doc(),
 383                         text = section.children()[0];
 384
 385                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 5}),
 386                         sectionChildren = section.children(),
 387                         lhsText = sectionChildren[0],
 388                         rhsText = sectionChildren[2];
 389
 390                     expect(lhsText.getText()).to.equal('Alice');
 391                     expect(returned.sameNode(sectionChildren[1]));
 392                     expect(rhsText.getText()).to.equal(' has a cat');
 393                 });
 394
 395                 it('treats dividing DocumentTextElement at the very end as appending after it', function() {
 396                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 397                         section = c.doc(),
 398                         text = section.children()[0];
 399
 400                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 15}),
 401                         sectionChildren = section.children(),
 402                         textElement = sectionChildren[0],
 403                         nodeElement = sectionChildren[1];
 404
 405                     expect(sectionChildren.length).to.equal(2);
 406                     expect(textElement.getText()).to.equal('Alice has a cat');
 407                     expect(returned.sameNode(nodeElement)).to.be.true;
 408                     expect(nodeElement.getWlxmlTag()).to.equal('aside');
 409                 });
 410
 411                 it('treats dividing DocumentTextElement at the very beginning as appending before it', function() {
 412                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 413                         section = c.doc(),
 414                         text = section.children()[0];
 415
 416                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 0}),
 417                         sectionChildren = section.children(),
 418                         nodeElement = sectionChildren[0],
 419                         textElement = sectionChildren[1];
 420
 421                     expect(sectionChildren.length).to.equal(2);
 422                     expect(textElement.getText()).to.equal('Alice has a cat');
 423                     expect(returned.sameNode(nodeElement)).to.be.true;
 424                     expect(nodeElement.getWlxmlTag()).to.equal('aside');
 425                 });
 426             });
 427
 428             describe('Splitting text', function() {
 429
 430                 it('splits DocumentTextElement\'s parent into two DocumentNodeElements of the same type', function() {
 431                     var c = canvas.fromXML('<section><header>Some header</header></section>'),
 432                         section = c.doc(),
 433                         text = section.children()[0].children()[0];
 434
 435                     var returnedValue = text.split({offset: 5});
 436                     expect(section.children().length).to.equal(2, 'section has two children');
 437
 438                     var header1 = section.children()[0];
 439                     var header2 = section.children()[1];
 440
 441                     expect(header1.getWlxmlTag()).to.equal('header', 'first section child represents wlxml header');
 442                     expect(header1.children().length).to.equal(1, 'first header has one text child');
 443                     expect(header1.children()[0].getText()).to.equal('Some ', 'first header has correct content');
 444                     expect(header2.getWlxmlTag()).to.equal('header', 'second section child represents wlxml header');
 445                     expect(header2.children().length).to.equal(1, 'second header has one text child');
 446                     expect(header2.children()[0].getText()).to.equal('header', 'second header has correct content');
 447
 448                     expect(returnedValue.first.sameNode(header1)).to.equal(true, 'first node returnde');
 449                     expect(returnedValue.second.sameNode(header2)).to.equal(true, 'second node returned');
 450                 });
 451
 452                 it('leaves empty copy of DocumentNodeElement if splitting at the very beginning', function() {
 453                         var c = canvas.fromXML('<section><header>Some header</header></section>'),
 454                         section = c.doc(),
 455                         text = section.children()[0].children()[0];
 456
 457                         text.split({offset: 0});
 458
 459                         var header1 = section.children()[0];
 460                         var header2 = section.children()[1];
 461
 462                         expect(header1.children().length).to.equal(0);
 463                         expect(header2.children()[0].getText()).to.equal('Some header');
 464                 });
 465
 466                 it('leaves empty copy of DocumentNodeElement if splitting at the very end', function() {
 467                         var c = canvas.fromXML('<section><header>Some header</header></section>'),
 468                         section = c.doc(),
 469                         text = section.children()[0].children()[0];
 470
 471                         text.split({offset: 11});
 472
 473                         var header1 = section.children()[0];
 474                         var header2 = section.children()[1];
 475
 476                         expect(header1.children()[0].getText()).to.equal('Some header');
 477                         expect(header2.children().length).to.equal(0);
 478                 });
 479
 480                 it('keeps DocumentTextElement\'s parent\'s children elements intact', function() {
 481                     var c = canvas.fromXML('\
 482                             <section>\
 483                                 <header>\
 484                                     A <span>fancy</span> and <span>nice</span> header\
 485                                 </header>\
 486                             </section>'),
 487                         section = c.doc(),
 488                         header = section.children()[0],
 489                         textAnd = header.children()[2];
 490
 491                     textAnd.split({offset: 2});
 492
 493                     var sectionChildren = section.children();
 494                     expect(sectionChildren.length).to.equal(2, 'Section has two children');
 495                     expect(sectionChildren[0].getWlxmlTag()).to.equal('header', 'First section element is a wlxml header');
 496                     expect(sectionChildren[1].getWlxmlTag()).to.equal('header', 'Second section element is a wlxml header');
 497
 498                     var firstHeaderChildren = sectionChildren[0].children();
 499                     expect(firstHeaderChildren.length).to.equal(3, 'First header has three children');
 500                     expect(firstHeaderChildren[0].getText()).to.equal('A ', 'First header starts with a text');
 501                     expect(firstHeaderChildren[1].getWlxmlTag()).to.equal('span', 'First header has span in the middle');
 502                     expect(firstHeaderChildren[2].getText()).to.equal(' a', 'First header ends with text');
 503
 504                     var secondHeaderChildren = sectionChildren[1].children();
 505                     expect(secondHeaderChildren.length).to.equal(3, 'Second header has three children');
 506                     expect(secondHeaderChildren[0].getText()).to.equal('nd ', 'Second header starts with text');
 507                     expect(secondHeaderChildren[1].getWlxmlTag()).to.equal('span', 'Second header has span in the middle');
 508                     expect(secondHeaderChildren[2].getText()).to.equal(' header', 'Second header ends with text');
 509                 });
 510             });
 511
 512             describe('wrapping', function() {
 513                 it('wraps DocumentNodeElement', function() {
 514                     var c = canvas.fromXML('<section><div></div></section>'),
 515                         div = c.doc().children()[0];
 516
 517                     var returned = div.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
 518                         parent = div.parent(),
 519                         parent2 = c.doc().children()[0];
 520
 521                     expect(returned.sameNode(parent)).to.be.true;
 522                     expect(returned.sameNode(parent2)).to.be.true;
 523                     expect(returned.getWlxmlTag()).to.equal('header');
 524                     expect(returned.getWlxmlClass()).to.equal('some.class');
 525                 });
 526                 it('wraps DocumentTextElement', function() {
 527                     var c = canvas.fromXML('<section>Alice</section>'),
 528                         text = c.doc().children()[0];
 529
 530                     var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
 531                         parent = text.parent(),
 532                         parent2 = c.doc().children()[0];
 533
 534                     expect(returned.sameNode(parent)).to.be.true;
 535                     expect(returned.sameNode(parent2)).to.be.true;
 536                     expect(returned.getWlxmlTag()).to.equal('header');
 537                     expect(returned.getWlxmlClass()).to.equal('some.class');
 538                 });
 539
 540                 describe('wrapping part of DocumentTextElement', function() {
 541                     [{start: 5, end: 12}, {start: 12, end: 5}].forEach(function(offsets) {
 542                         it('wraps in the middle ' + offsets.start + '/' + offsets.end, function() {
 543                             var c = canvas.fromXML('<section>Alice has a cat</section>'),
 544                                 text = c.doc().children()[0];
 545
 546                             var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: offsets.start, end: offsets.end}),
 547                                 children = c.doc().children();
 548
 549                             expect(children.length).to.equal(3);
 550
 551                             expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 552                             expect(children[0].getText()).to.equal('Alice');
 553
 554                             expect(children[1].sameNode(returned)).to.be.true;
 555                             expect(returned.getWlxmlTag()).to.equal('header');
 556                             expect(returned.getWlxmlClass()).to.equal('some.class');
 557                             expect(children[1].children().length).to.equal(1);
 558                             expect(children[1].children()[0].getText()).to.equal(' has a ');
 559
 560                             expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
 561                             expect(children[2].getText()).to.equal('cat');
 562                         });
 563                     });
 564
 565                     it('wraps whole text inside DocumentTextElement if offsets span entire content', function() {
 566                          var c = canvas.fromXML('<section>Alice has a cat</section>'),
 567                              text = c.doc().children()[0];
 568
 569                          var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: 0, end: 15}),
 570                              children = c.doc().children();
 571
 572                          expect(children.length).to.equal(1);
 573                          expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 574                          expect(children[0].children()[0].getText()).to.equal('Alice has a cat');
 575                     });
 576                 });
 577
 578                 it('wraps text spanning multiple sibling DocumentTextNodes', function() {
 579                     var c = canvas.fromXML('<section>Alice has a <span>small</span> cat</section>'),
 580                         section = c.doc(),
 581                         wrapper = c.wrapText({
 582                             inside: section,
 583                             _with: {tag: 'span', klass: 'some.class'},
 584                             offsetStart: 6,
 585                             offsetEnd: 4,
 586                             textNodeIdx: [0,2]
 587                         });
 588
 589                     expect(section.children().length).to.equal(2);
 590                     expect(section.children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 591                     expect(section.children()[0].getText()).to.equal('Alice ');
 592
 593                     var wrapper2 = section.children()[1];
 594                     expect(wrapper2.sameNode(wrapper)).to.be.true;
 595
 596                     var wrapperChildren = wrapper.children();
 597                     expect(wrapperChildren.length).to.equal(3);
 598                     expect(wrapperChildren[0].getText()).to.equal('has a ');
 599
 600                     expect(wrapperChildren[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 601                     expect(wrapperChildren[1].children().length).to.equal(1);
 602                     expect(wrapperChildren[1].children()[0].getText()).to.equal('small');
 603
 604                     expect(wrapperChildren[2].getText()).to.equal(' cat');
 605                 });
 606             });
 607
 608             describe('unwrapping', function() {
 609                 it('unwraps DocumentTextElement from its parent DocumentNodeElement if it\'s its only child', function() {
 610                     var c = canvas.fromXML('<section>Alice <span>has a</span> cat</section>'),
 611                     section = c.doc(),
 612                     text = section.children()[1].children()[0];
 613
 614                     var newTextContainer = text.unwrap();
 615
 616                     expect(section.children().length).to.equal(1, 'section has one child');
 617                     expect(section.children()[0].getText()).to.equal('Alice has a cat');
 618                     expect(newTextContainer.sameNode(c.doc())).to.equal(true, 'unwrap returns new text parent DocumentNodeElement');
 619                 })
 620             });
 621         });
 622
 623         describe('Lists api', function() {
 624             describe('creating lists', function() {
 625                 it('allows creation of a list from existing sibling DocumentElements', function() {
 626                     var c = canvas.fromXML('\
 627                         <section>\
 628                             Alice\
 629                             <div>has</div>\
 630                             a\
 631                             <div>cat</div>\
 632                         </section>'),
 633                         section = c.doc(),
 634                         textHas = section.children()[1],
 635                         divA = section.children()[2]
 636
 637                     c.list.create({element1: textHas, element2: divA});
 638
 639                     expect(section.children().length).to.equal(3, 'section has three child elements');
 640
 641                     var child1 = section.children()[0],
 642                         list = section.children()[1],
 643                         child3 = section.children()[2];
 644
 645                     expect(child1.getText()).to.equal('Alice');
 646                     expect(list.is('list')).to.equal(true, 'second child is a list');
 647                     expect(list.children().length).to.equal(2, 'list contains two elements');
 648                     list.children().forEach(function(child) {
 649                         expect(child.getWlxmlClass()).to.equal('item', 'list childs have wlxml class of item');
 650                     });
 651                     expect(child3.children()[0].getText()).to.equal('cat');
 652                 });
 653
 654                 it('allows creating nested list from existing sibling list items', function() {
 655                     var c = canvas.fromXML('\
 656                         <section>\
 657                             <div class="list-items">\
 658                                 <div class="item">A</div>\
 659                                 <div class="item">B</div>\
 660                                 <div class="item">C</div>\
 661                                 <div class="item">D</div>\
 662                             </div>\
 663                         </section>'),
 664                         outerList = c.doc().children()[0],
 665                         itemB = outerList.children()[1],
 666                         itemC = outerList.children()[2];
 667
 668
 669                         c.list.create({element1: itemB, element2: itemC});
 670
 671                     var outerListItems = outerList.children(),
 672                         innerList = outerListItems[1].children()[0],
 673                         innerListItems = innerList.children();
 674
 675                     expect(outerListItems.length).to.equal(3, 'outer list has three items');
 676                     expect(outerListItems[0].children()[0].getText()).to.equal('A', 'first outer item ok');
 677                     expect(outerListItems[1].getWlxmlClass()).to.equal('item', 'inner list is wrapped by item element');
 678
 679                     expect(innerList.is('list')).to.equal(true, 'inner list created');
 680                     expect(innerListItems.length).to.equal(2, 'inner list has two items');
 681                     expect(innerListItems[0].children()[0].getText()).to.equal('B', 'first inner item ok');
 682                     expect(innerListItems[1].children()[0].getText()).to.equal('C', 'second inner item ok');
 683
 684                     expect(outerListItems[2].children()[0].getText()).to.equal('D', 'last outer item ok');
 685
 686                 });
 687
 688             });
 689
 690             describe('extracting list items', function() {
 691                 it('creates two lists with extracted items in the middle if extracting from the middle of the list', function() {
 692                     var c = canvas.fromXML('\
 693                         <section>\
 694                             <div class="list.items">\
 695                                 <div class="item">0</div>\
 696                                 <div class="item">1</div>\
 697                                 <div class="item">2</div>\
 698                                 <div class="item">3</div>\
 699                             </div>\
 700                         </section>'),
 701                         list = c.doc().children()[0],
 702                         item1 = list.children()[1],
 703                         item2 = list.children()[2];
 704
 705                     c.list.extractItems({element1: item1, element2: item2});
 706
 707                     var section = c.doc(),
 708                         list1 = section.children()[0],
 709                         oldItem1 = section.children()[1],
 710                         oldItem2 = section.children()[2],
 711                         list2 = section.children()[3];
 712
 713                     expect(section.children().length).to.equal(4, 'section contains four children');
 714
 715                     expect(list1.is('list')).to.equal(true, 'first section child is a list');
 716                     expect(list1.children().length).to.equal(1, 'first list has one child');
 717                     expect(list1.children()[0].children()[0].getText()).to.equal('0', 'first item of the first list is a first item of the original list');
 718
 719                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item got extracted');
 720                     expect(oldItem1.getWlxmlClass() === undefined).to.equal(true, 'first extracted element has no wlxml class');
 721
 722                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item got extracted');
 723                     expect(oldItem2.getWlxmlClass() === undefined).to.equal(true, 'second extracted element has no wlxml class');
 724
 725                     expect(list2.is('list')).to.equal(true, 'last section child is a list');
 726                     expect(list2.children().length).to.equal(1, 'second list has one child');
 727                     expect(list2.children()[0].children()[0].getText()).to.equal('3', 'first item of the second list is a last item of the original list');
 728                 });
 729
 730                 it('puts extracted items above the list if starting item is the first one', function() {
 731                     var c = canvas.fromXML('\
 732                         <section>\
 733                             <div class="list.items">\
 734                                 <div class="item">0</div>\
 735                                 <div class="item">1</div>\
 736                                 <div class="item">2</div>\
 737                             </div>\
 738                         </section>'),
 739                         list = c.doc().children()[0],
 740                         item1 = list.children()[0],
 741                         item2 = list.children()[1],
 742                         item3 = list.children()[2];
 743
 744                     c.list.extractItems({element1: item1, element2: item2});
 745
 746                     var section = c.doc(),
 747                         oldItem1 = section.children()[0],
 748                         oldItem2 = section.children()[1],
 749                         newList = section.children()[2];
 750
 751                     expect(section.children().length).to.equal(3, 'section has three children');
 752                     expect(oldItem1.children()[0].getText()).to.equal('0', 'first item extracted');
 753                     expect(oldItem2.children()[0].getText()).to.equal('1', 'second item extracted');
 754                     expect(newList.is('list')).to.equal(true, 'list lies below extracted item');
 755                     expect(newList.children().length).to.equal(1, 'list has now one child');
 756                 });
 757
 758                 it('puts extracted items below the list if ending item is the last one', function() {
 759                     var c = canvas.fromXML('\
 760                         <section>\
 761                             <div class="list.items">\
 762                                 <div class="item">0</div>\
 763                                 <div class="item">1</div>\
 764                                 <div class="item">2</div>\
 765                             </div>\
 766                         </section>'),
 767                         list = c.doc().children()[0],
 768                         item1 = list.children()[0],
 769                         item2 = list.children()[1],
 770                         item3 = list.children()[2];
 771
 772                     c.list.extractItems({element1: item2, element2: item3});
 773
 774                     var section = c.doc(),
 775                         oldItem1 = section.children()[1],
 776                         oldItem2 = section.children()[2],
 777                         newList = section.children()[0];
 778
 779                     expect(section.children().length).to.equal(3, 'section has three children');
 780                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item extracted');
 781                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item extracted');
 782                     expect(newList.is('list')).to.equal(true, 'list lies above extracted item');
 783                     expect(newList.children().length).to.equal(1, 'list has now one child');
 784                 });
 785
 786                 it('removes list if all its items are extracted', function() {
 787                     var c = canvas.fromXML('\
 788                         <section>\
 789                             <div class="list.items">\
 790                                 <div class="item">some item</div>\
 791                                 <div class="item">some item 2</div>\
 792                             </div>\
 793                         </section>'),
 794                         list = c.doc().children()[0],
 795                         item1 = list.children()[0],
 796                         item2 = list.children()[1];
 797
 798                     c.list.extractItems({element1: item1, element2: item2});
 799
 800                     var section = c.doc(),
 801                         list1 = section.children()[0],
 802                         oldItem1 = section.children()[0],
 803                         oldItem2 = section.children()[1];
 804
 805                     expect(section.children().length).to.equal(2, 'section contains two children');
 806                     expect(oldItem1.children()[0].getText()).to.equal('some item');
 807                     expect(oldItem2.children()[0].getText()).to.equal('some item 2');
 808                 });
 809
 810                 it('creates two lists with extracted items in the middle if extracting from the middle of the list - nested case' , function() {
 811                     var c = canvas.fromXML('\
 812                         <section>\
 813                             <div class="list.items">\
 814                                 <div class="item">0</div>\
 815                                 <div class="item">\
 816                                     <div class="list.items">\
 817                                         <div class="item">1.1</div>\
 818                                         <div class="item">1.2</div>\
 819                                         <div class="item">1.3</div>\
 820                                     </div>\
 821                                 </div>\
 822                                 <div class="item">2</div>\
 823                             </div>\
 824                         </section>'),
 825                         list = c.doc().children()[0],
 826                         nestedList = list.children()[1].children()[0],
 827                         nestedListItem = nestedList.children()[1];
 828
 829                     c.list.extractItems({element1: nestedListItem, element2: nestedListItem});
 830
 831                     var section = c.doc(),
 832                         list = section.children()[0],
 833                         item1 = list.children()[0],
 834                         item2 = list.children()[1], //
 835                         item3 = list.children()[2],
 836                         item4 = list.children()[3], //
 837                         item5 = list.children()[4],
 838                         nestedList1 = item2.children()[0],
 839                         nestedList2 = item4.children()[0];
 840
 841                     expect(list.children().length).to.equal(5, 'top list has five items');
 842
 843                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 844
 845                     expect(item2.getWlxmlClass()).to.equal('item', 'first nested list is still wrapped in item element');
 846                     expect(nestedList1.children().length).to.equal(1, 'first nested list is left with one child');
 847                     expect(nestedList1.children()[0].children()[0].getText()).to.equal('1.1', 'first nested list item left alone');
 848
 849                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 850
 851                     expect(item4.getWlxmlClass()).to.equal('item', 'second nested list is still wrapped in item element');
 852                     expect(nestedList2.children().length).to.equal(1, 'second nested list is left with one child');
 853                     expect(nestedList2.children()[0].children()[0].getText()).to.equal('1.3', 'second nested list item left alone');
 854
 855                     expect(item5.children()[0].getText()).to.equal('2', 'last item ok');
 856                 });
 857
 858                 it('puts extracted items below the list if ending item is the last one - nested case' , function() {
 859                     var c = canvas.fromXML('\
 860                         <section>\
 861                             <div class="list.items">\
 862                                 <div class="item">0</div>\
 863                                 <div class="item">\
 864                                     <div class="list.items">\
 865                                         <div class="item">1.1</div>\
 866                                         <div class="item">1.2</div>\
 867                                         <div class="item">1.3</div>\
 868                                     </div>\
 869                                 </div>\
 870                                 <div class="item">2</div>\
 871                             </div>\
 872                         </section>'),
 873                         list = c.doc().children()[0],
 874                         nestedList = list.children()[1].children()[0],
 875                         nestedListItem1 = nestedList.children()[1],
 876                         nestedListItem2 = nestedList.children()[2];
 877
 878                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
 879
 880                     var section = c.doc(),
 881                         list = section.children()[0],
 882                         item1 = list.children()[0],
 883                         item2 = list.children()[1],
 884                         item3 = list.children()[2],
 885                         item4 = list.children()[3],
 886                         item5 = list.children()[4];
 887                     nestedList = item2.children()[0];
 888
 889                     expect(list.children().length).to.equal(5, 'top list has five items');
 890                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 891                     expect(item2.getWlxmlClass()).to.equal('item', 'nested list is still wrapped in item element');
 892                     expect(nestedList.children().length).to.equal(1, 'nested list is left with one child');
 893                     expect(nestedList.children()[0].children()[0].getText()).to.equal('1.1', 'nested list item left alone');
 894                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 895                     expect(item4.children()[0].getText()).to.equal('1.3', 'fourth item ok');
 896                     expect(item5.children()[0].getText()).to.equal('2', 'fifth item ok');
 897                 });
 898
 899                 it('puts extracted items above the list if starting item is the first one - nested case' , function() {
 900                     var c = canvas.fromXML('\
 901                         <section>\
 902                             <div class="list.items">\
 903                                 <div class="item">0</div>\
 904                                 <div class="item">\
 905                                     <div class="list.items">\
 906                                         <div class="item">1.1</div>\
 907                                         <div class="item">1.2</div>\
 908                                         <div class="item">1.3</div>\
 909                                     </div>\
 910                                 </div>\
 911                                 <div class="item">2</div>\
 912                             </div>\
 913                         </section>'),
 914                         list = c.doc().children()[0],
 915                         nestedList = list.children()[1].children()[0],
 916                         nestedListItem1 = nestedList.children()[0],
 917                         nestedListItem2 = nestedList.children()[1];
 918
 919                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
 920
 921                     var section = c.doc(),
 922                         list = section.children()[0],
 923                         item1 = list.children()[0],
 924                         item2 = list.children()[1],
 925                         item3 = list.children()[2],
 926                         item4 = list.children()[3],
 927                         item5 = list.children()[4];
 928                     nestedList = item4.children()[0];
 929
 930                     expect(list.children().length).to.equal(5, 'top list has five items');
 931                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 932                     expect(item2.children()[0].getText()).to.equal('1.1', 'second item ok');
 933                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 934
 935                     expect(item4.getWlxmlClass()).to.equal('item', 'nested list is still wrapped in item element');
 936                     expect(nestedList.children().length).to.equal(1, 'nested list is left with one child');
 937                     expect(nestedList.children()[0].children()[0].getText()).to.equal('1.3', 'nested list item left alone');
 938                     expect(item5.children()[0].getText()).to.equal('2', 'fifth item ok');
 939                 });
 940
 941                 it('removes list if all its items are extracted - nested case', function() {
 942                     var c = canvas.fromXML('\
 943                         <section>\
 944                             <div class="list.items">\
 945                                 <div class="item">0</div>\
 946                                 <div class="item">\
 947                                     <div class="list.items">\
 948                                         <div class="item">1.1</div>\
 949                                         <div class="item">1.2</div>\
 950                                     </div>\
 951                                 </div>\
 952                                 <div class="item">2</div>\
 953                             </div>\
 954                         </section>'),
 955                         list = c.doc().children()[0],
 956                         nestedList = list.children()[1].children()[0],
 957                         nestedListItem1 = nestedList.children()[0],
 958                         nestedListItem2 = nestedList.children()[1];
 959
 960                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
 961
 962                     var section = c.doc(),
 963                         list = section.children()[0],
 964                         item1 = list.children()[0],
 965                         item2 = list.children()[1],
 966                         item3 = list.children()[2],
 967                         item4 = list.children()[3];
 968
 969                     expect(list.children().length).to.equal(4, 'top list has four items');
 970                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 971                     expect(item2.children()[0].getText()).to.equal('1.1', 'second item ok');
 972                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 973                     expect(item4.children()[0].getText()).to.equal('2', 'fourth item ok');
 974                 });
 975
 976                 it('extracts items out of outer most list when merge flag is set to false', function() {
 977                     var c = canvas.fromXML('\
 978                         <section>\
 979                             <div class="list.items">\
 980                                 <div class="item">0</div>\
 981                                 <div class="item">\
 982                                     <div class="list.items">\
 983                                         <div class="item">1.1</div>\
 984                                         <div class="item">1.2</div>\
 985                                     </div>\
 986                                 </div>\
 987                                 <div class="item">2</div>\
 988                             </div>\
 989                         </section>'),
 990                         section = c.doc(),
 991                         list = section.children()[0],
 992                         nestedList = list.children()[1].children()[0],
 993                         nestedListItem = nestedList.children()[0];
 994
 995                     var test = c.list.extractItems({element1: nestedListItem, element2: nestedListItem, merge: false});
 996
 997                     expect(test).to.equal(true, 'extraction status ok');
 998
 999                     var sectionChildren = section.children(),
1000                         extractedItem = sectionChildren[1];
1001
1002                     expect(sectionChildren.length).to.equal(3, 'section has three children');
1003                     expect(sectionChildren[0].is('list')).to.equal(true, 'first child is a list');
1004
1005                     expect(extractedItem.getWlxmlTag()).to.equal('div', 'extracted item is a wlxml div');
1006                     expect(extractedItem.getWlxmlClass()).to.equal(undefined, 'extracted item has no wlxml class');
1007                     expect(extractedItem.children()[0].getText()).to.equal('1.1', 'extracted item ok');
1008                     expect(sectionChildren[2].is('list')).to.equal(true, 'second child is a list');
1009                 });
1010             });
1011         });
1012
1013     });
1014
1015     describe('Cursor', function() {
1016
1017         var getSelection;
1018
1019         var findTextNode = function(inside, text) {
1020             var nodes = inside.find(':not(iframe)').addBack().contents().filter(function() {
1021                 return this.nodeType === Node.TEXT_NODE && this.data === text;
1022             });
1023             if(nodes.length)
1024                 return nodes[0];
1025             return null;
1026         }
1027
1028         beforeEach(function() {
1029             getSelection = sinon.stub(window, 'getSelection');
1030         });
1031
1032         afterEach(function() {
1033             getSelection.restore();
1034         });
1035
1036         it('returns position when browser selection collapsed', function() {
1037             var c = canvas.fromXML('<section>Alice has a cat</section>'),
1038                 dom = c.doc().dom(),
1039                 text = findTextNode(dom, 'Alice has a cat');
1040
1041             expect(text.nodeType).to.equal(Node.TEXT_NODE, 'correct node selected');
1042             expect($(text).text()).to.equal('Alice has a cat');
1043
1044             getSelection.returns({
1045                 anchorNode: text,
1046                 focusNode: text,
1047                 anchorOffset: 5,
1048                 focusOffset: 5,
1049                 isCollapsed: true
1050             });
1051             var cursor = c.getCursor(),
1052                 position = cursor.getPosition();
1053
1054             expect(cursor.isSelecting()).to.equal(false, 'cursor is not selecting anything');
1055             expect(position.element.getText()).to.equal('Alice has a cat');
1056             expect(position.offset).to.equal(5);
1057             expect(position.offsetAtEnd).to.equal(false, 'offset is not at end');
1058
1059             getSelection.returns({
1060                 anchorNode: text,
1061                 focusNode: text,
1062                 anchorOffset: 15,
1063                 focusOffset: 15,
1064                 isCollapsed: true
1065             });
1066
1067             expect(cursor.getPosition().offsetAtEnd).to.equal(true, 'offset at end');
1068         });
1069
1070         it('returns boundries of selection when browser selection not collapsed', function() {
1071             var c = canvas.fromXML('<section>Alice <span>has</span> a <span>big</span> cat</section>'),
1072                 dom = c.doc().dom(),
1073                 text = {
1074                     alice: findTextNode(dom, 'Alice '),
1075                     has: findTextNode(dom, 'has'),
1076                     cat: findTextNode(dom, ' cat')
1077                 },
1078                 cursor = c.getCursor(),
1079                 aliceElement = c.getDocumentElement(text.alice),
1080                 catElement = c.getDocumentElement(text.cat);
1081
1082
1083                 [
1084                     {focus: text.alice, focusOffset: 1, anchor: text.cat,   anchorOffset: 2, selectionAnchor: catElement},
1085                     {focus: text.cat,   focusOffset: 2, anchor: text.alice, anchorOffset: 1, selectionAnchor: aliceElement}
1086                 ].forEach(function(s, idx) {
1087                     getSelection.returns({isColapsed: false, anchorNode: s.anchor, anchorOffset: s.anchorOffset, focusNode: s.focus, focusOffset: s.focusOffset});
1088
1089                     var selectionStart = cursor.getSelectionStart(),
1090                         selectionEnd = cursor.getSelectionEnd(),
1091                         selectionAnchor = cursor.getSelectionAnchor();
1092
1093                     expect(cursor.isSelecting()).to.equal(true, 'cursor is selecting');
1094                     expect(selectionStart.element.sameNode(aliceElement)).to.equal(true, '"Alice" is the start of the selection ' + idx);
1095                     expect(selectionStart.offset).to.equal(1, '"Alice" offset ok' + idx);
1096                     expect(selectionEnd.element.sameNode(catElement)).to.equal(true, '"Cat" is the start of the selection ' + idx);
1097                     expect(selectionEnd.offset).to.equal(2, '"Cat" offset ok' + idx);
1098                     expect(selectionAnchor.element.sameNode(s.selectionAnchor)).to.equal(true, 'anchor ok');
1099                     expect(selectionAnchor.offset).to.equal(s.anchorOffset, 'anchor offset ok');
1100                 });
1101         });
1102
1103         it('recognizes when browser selection boundries lies in sibling DocumentTextElements', function() {
1104             var c = canvas.fromXML('<section>Alice <span>has</span> a <span>big</span> cat</section>'),
1105                 dom = c.doc().dom(),
1106                 text = {
1107                     alice: findTextNode(dom, 'Alice '),
1108                     has: findTextNode(dom, 'has'),
1109                     a: findTextNode(dom, ' a '),
1110                     big: findTextNode(dom, 'big'),
1111                     cat: findTextNode(dom, ' cat'),
1112                 },
1113                 cursor = c.getCursor();
1114
1115             expect($(text.alice).text()).to.equal('Alice ');
1116             expect($(text.has).text()).to.equal('has');
1117             expect($(text.a).text()).to.equal(' a ');
1118             expect($(text.big).text()).to.equal('big');
1119             expect($(text.cat).text()).to.equal(' cat');
1120
1121             getSelection.returns({anchorNode: text.alice, focusNode: text.a});
1122             expect(cursor.isSelectingSiblings()).to.equal(true, '"Alice" and "a" are children');
1123
1124             getSelection.returns({anchorNode: text.alice, focusNode: text.cat});
1125             expect(cursor.isSelectingSiblings()).to.equal(true, '"Alice" and "cat" are children');
1126
1127             getSelection.returns({anchorNode: text.alice, focusNode: text.has});
1128             expect(cursor.isSelectingSiblings()).to.equal(false, '"Alice" and "has" are not children');
1129
1130             getSelection.returns({anchorNode: text.has, focusNode: text.big});
1131             expect(cursor.isSelectingSiblings()).to.equal(false, '"has" and "big" are not children');
1132
1133         })
1134
1135         describe('zero width space handling', function() {
1136             it('position range includes ZWS at the boundries of text in case when native selection api doesn\'t', function() {
1137                 var c = canvas.fromXML("<section>Alice</section>"),
1138                     dom = c.doc().dom(),
1139                     textNode = findTextNode(dom, 'Alice'),
1140                     cursor = c.getCursor();
1141
1142                 textNode.data = utils.unicode.ZWS + 'Alice';
1143                 getSelection.returns({anchorNode: textNode, anchorOffset: 1, focusNode: textNode, focusOffset: 1});
1144                 expect(cursor.getPosition().offset).to.equal(0);
1145                 expect(cursor.getPosition().offsetAtBeginning).to.equal(true, 'offset at beginning');
1146
1147                 textNode.data = 'Alice' + utils.unicode.ZWS;
1148                 getSelection.returns({anchorNode: textNode, anchorOffset: 5, focusNode: textNode, focusOffset: 5});
1149                 expect(cursor.getPosition().offset).to.equal(6);
1150                 expect(cursor.getPosition().offsetAtEnd).to.equal(true, 'offset at end');
1151             });
1152         });
1153     });
1154
1155     describe('Serializing document to WLXML', function() {
1156         it('keeps document intact when no changes have been made', function() {
1157             var xmlIn = '<section>Alice<div>has</div>a <span class="uri" meta-uri="http://cat.com">cat</span>!</section>',
1158                 c = canvas.fromXML(xmlIn),
1159                 xmlOut = c.toXML();
1160
1161             var parser = new DOMParser(),
1162                 input = parser.parseFromString(xmlIn, "application/xml").childNodes[0],
1163                 output = parser.parseFromString(xmlOut, "application/xml").childNodes[0];
1164
1165             expect(input.isEqualNode(output)).to.be.true;
1166         });
1167
1168         it('keeps arbitrary node attributes intact', function() {
1169             var xmlIn = '<section a="1" xmlns:dcterms="http://purl.org/dc/terms/"></section>',
1170                 $xmlOut = $(canvas.fromXML(xmlIn).toXML());
1171
1172             expect($xmlOut.attr('a')).to.equal('1');
1173             expect($xmlOut.attr('xmlns:dcterms')).to.equal('http://purl.org/dc/terms/');
1174         });
1175
1176         it('doesn\' serialize meta attribute if its empty', function() {
1177             var c;
1178
1179             c = canvas.fromXML('<section class="uri" meta-uri="some.uri"></section>');
1180             c.doc().setWlxmlMetaAttr('uri', '');
1181             expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'overriding attribute with zero length string');
1182
1183             c = canvas.fromXML('<section class="uri"></section>');
1184             c.doc().setWlxmlMetaAttr('uri', '');
1185             expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'setting attribute to zero length string');
1186         });
1187
1188         describe('output xml', function() {
1189             it('keeps entities intact', function() {
1190                 var xmlIn = '<section>&lt; &gt;</section>',
1191                     c = canvas.fromXML(xmlIn),
1192                     xmlOut = c.toXML();
1193                 expect(xmlOut).to.equal(xmlIn);
1194             });
1195             it('keeps entities intact when they form html/xml', function() {
1196                 var xmlIn = '<section>&lt;abc&gt;</section>',
1197                     c = canvas.fromXML(xmlIn),
1198                     xmlOut = c.toXML();
1199                 expect(xmlOut).to.equal(xmlIn);
1200             });
1201         });
1202
1203         describe('formatting output xml', function() {
1204             /*it('keeps white spaces at the edges of input xml', function() {
1205                 var xmlIn = '  <section></section>  ',
1206                 c = canvas.fromXML(xmlIn),
1207                 xmlOut = c.toXML();
1208
1209                 expect(xmlOut.substr(4)).to.equal('   <', 'start');
1210                 expect(xmlOut.substr(-2)).to.equal('>  ', 'end');
1211             });*/
1212             it('keeps white space between XML nodes', function() {
1213                 var xmlIn = '<section>\n\n\n<div></div>\n\n\n<div></div>\n\n\n</section>',
1214                 c = canvas.fromXML(xmlIn),
1215                 xmlOut = c.toXML();
1216
1217                 var partsIn = xmlIn.split('\n\n\n'),
1218                     partsOut = xmlOut.split('\n\n\n');
1219
1220                 expect(partsIn).to.deep.equal(partsOut);
1221             });
1222
1223             it('keeps white space between XML nodes - inline case', function() {
1224                 var xmlIn = '<section>\n\n\n<span></span>\n\n\n<span></span>\n\n\n</section>',
1225                 c = canvas.fromXML(xmlIn),
1226                 xmlOut = c.toXML();
1227
1228                 var partsIn = xmlIn.split('\n\n\n'),
1229                     partsOut = xmlOut.split('\n\n\n');
1230
1231                 expect(partsIn).to.deep.equal(partsOut);
1232             });
1233
1234             it('keeps white space at the beginning of text', function() {
1235                 var xmlIn = '<section>    abc<div>some div</div>    abc</section>',
1236                     c = canvas.fromXML(xmlIn),
1237                     xmlOut = c.toXML();
1238
1239                 expect(xmlOut).to.equal(xmlIn);
1240             });
1241
1242             it('nests new children block elements', function() {
1243                 var c = canvas.fromXML('<section></section>');
1244
1245                 c.doc().append({tag: 'header'});
1246
1247                 var xmlOut = c.toXML();
1248                 expect(xmlOut.split('\n  ')[0]).to.equal('<section>', 'nesting start ok');
1249                 expect(xmlOut.split('\n').slice(-1)[0]).to.equal('</section>', 'nesting end ok');
1250
1251             });
1252
1253             it('doesn\'t nest new children inline elements', function() {
1254                 var c = canvas.fromXML('<section></section>');
1255
1256                 c.doc().append({tag: 'span'});
1257
1258                 var xmlOut = c.toXML();
1259                 expect(xmlOut).to.equal('<section><span></span></section>');
1260             });
1261
1262             it('keeps original white space at the end of text', function() {
1263
1264                 var xmlIn = '<header>    Some text ended with white space \
1265                 \
1266                 <span class="uri">Some text</span> some text\
1267             \
1268             </header>',
1269                     c = canvas.fromXML(xmlIn);
1270
1271             var xmlOut = c.toXML();
1272             console.log(xmlOut);
1273             expect(xmlOut).to.equal(xmlIn);
1274             });
1275
1276             it('keeps white space around text node', function() {
1277                 var xmlIn = '<section>\
1278                 <header>header1</header>\
1279                 Some text surrounded by white space\
1280                 <header>header2</header>\
1281             </section>',
1282                     c = canvas.fromXML(xmlIn);
1283
1284                 var xmlOut = c.toXML();
1285                 expect(xmlOut).to.equal(xmlIn);
1286             });
1287
1288             it('keeps white space around text node - last node case', function() {
1289                 var xmlIn = '<section>\
1290                 <header>header</header>\
1291                     \
1292                 Some text surrounded by white space\
1293                     \
1294             </section>',
1295                     c = canvas.fromXML(xmlIn);
1296
1297                 var xmlOut = c.toXML();
1298                 expect(xmlOut).to.equal(xmlIn);
1299             });
1300
1301             it('keeps white space after detaching text element', function() {
1302                 var xmlIn = '<section><header>header</header>\n\
1303                     \n\
1304                 text1\n\
1305                     \n\
1306             </section>',
1307                     expectedXmlOut = '<section><header>header</header>\n\
1308                     \n\
1309                 \n\
1310                     \n\
1311             </section>',
1312                     c = canvas.fromXML(xmlIn),
1313                     children = c.doc().children(),
1314                     text = children[children.length-1];
1315
1316                 expect(text.getText()).to.equal('text1');
1317
1318                 text.detach();
1319
1320                 var xmlOut = c.toXML();
1321                 expect(xmlOut).to.equal(expectedXmlOut);
1322             });
1323
1324         })
1325     })
1326 });
1327
1328
1329 });