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('accessing sibling parents of two elements', function() {
 211                 it('returns elements themself if they have direct common parent', function() {
 212                     var c = canvas.fromXML('<section>\
 213                         <div>\
 214                             <div>A</div>\
 215                             <div>B</div>\
 216                         </div>\
 217                     </section>'),
 218                         section = c.doc(),
 219                         wrappingDiv = c.doc().children()[0],
 220                         divA = wrappingDiv.children()[0],
 221                         divB = wrappingDiv.children()[1];
 222
 223                     var siblingParents = c.getSiblingParents({element1: divA, element2: divB});
 224
 225                     expect(siblingParents.element1.sameNode(divA)).to.equal(true, 'divA');
 226                     expect(siblingParents.element2.sameNode(divB)).to.equal(true, 'divB');
 227                 });
 228
 229                 it('returns sibling parents - example 1', function() {
 230                     var c = canvas.fromXML('<section>Alice <span>has a cat</span></section>'),
 231                         section = c.doc(),
 232                         aliceText = section.children()[0],
 233                         span = section.children()[1],
 234                         spanText = span.children()[0];
 235
 236                     var siblingParents = c.getSiblingParents({element1: aliceText, element2: spanText});
 237
 238                     expect(siblingParents.element1.sameNode(aliceText)).to.equal(true, 'aliceText');
 239                     expect(siblingParents.element2.sameNode(span)).to.equal(true, 'span');
 240                 });
 241             })
 242
 243             describe('free text handling', function() {
 244                     it('sees free text', function() {
 245                         var c = canvas.fromXML('<section>Alice <span>has</span> a cat</section>'),
 246                             children = c.doc().children();
 247                         expect(children.length).to.equal(3);
 248                         expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 249                         expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 250                         expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
 251                     });
 252             });
 253
 254             describe('white characters handling', function() {
 255                 it('says empty element node has no children', function() {
 256                     var c = canvas.fromXML('<section></section>');
 257                     expect(c.doc().children().length).to.equal(0);
 258                 });
 259                 it('says element node with one space has one DocumentTextElement', function() {
 260                     var c = canvas.fromXML('<section> </section>');
 261                     expect(c.doc().children().length).to.equal(1);
 262                     expect(c.doc().children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 263                     expect(c.doc().children()[0].getText()).to.equal(' ');
 264                 });
 265                 it('ignores white space surrounding block elements', function() {
 266                     var c = canvas.fromXML('<section> <div></div> </section>');
 267                     var children = c.doc().children();
 268                     expect(children.length).to.equal(1);
 269                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 270                 });
 271                 it('ignores white space between block elements', function() {
 272                     var c = canvas.fromXML('<section><div></div> <div></div></section>');
 273                     var children = c.doc().children();
 274                     expect(children.length === 2);
 275                     [0,1].forEach(function(idx) {
 276                         expect(children[idx]).to.be.instanceOf(documentElement.DocumentNodeElement);
 277                     });
 278                 });
 279
 280                 it('trims white space from the beginning and the end of the block elements', function() {
 281                     var c = canvas.fromXML('<section> Alice <span>has</span> a cat </section>');
 282                     expect(c.doc().children()[0].getText()).to.equal('Alice ');
 283                     expect(c.doc().children()[2].getText()).to.equal(' a cat');
 284                 });
 285
 286                 it('normalizes string of white characters to one space at the inline element boundries', function() {
 287                     var c = canvas.fromXML('<span>   Alice has a cat   </span>');
 288                     expect(c.doc().children()[0].getText()).to.equal(' Alice has a cat ');
 289                 });
 290
 291                 it('normalizes string of white characters to one space before inline element', function() {
 292                     var c = canvas.fromXML('<div>Alice has  <span>a cat</span></div>');
 293                     expect(c.doc().children()[0].getText()).to.equal('Alice has ');
 294                 });
 295
 296                 it('normalizes string of white characters to one space after inline element', function() {
 297                     var c = canvas.fromXML('<div>Alice has <span>a</span>  cat</div>');
 298                     expect(c.doc().children()[2].getText()).to.equal(' cat');
 299                 });
 300             });
 301
 302             describe('getting vertically first text element', function() {
 303                 it('returns the first child if it\'s text element, ignores metadata', function() {
 304                     var c = canvas.fromXML('<section><metadata><dc:author>author</dc:author></metadata>Alice<div>has</div>a cat</section>'),
 305                         first = c.doc().getVerticallyFirstTextElement();
 306
 307                     expect(first.sameNode(c.doc().children()[1])).to.be.true;
 308                 });
 309
 310                 it('looks recursively inside node elements if they precede text element', function() {
 311                     var c = canvas.fromXML('\
 312                             <section>\
 313                                 <div>\
 314                                     <div>\
 315                                         Alice\
 316                                     </div>\
 317                                 </div>\
 318                                 Some text\
 319                             </section>'),
 320                         textAlice = c.doc().children()[0].children()[0].children()[0],
 321                         first = c.doc().getVerticallyFirstTextElement();
 322
 323                     expect(textAlice).to.be.instanceOf(documentElement.DocumentTextElement);
 324                     expect(first.sameNode(textAlice)).to.be.true;
 325                 });
 326             });
 327         });
 328
 329         describe('manipulation api', function() {
 330
 331             describe('Basic Element inserting', function() {
 332                 it('can put new NodeElement at the end', function() {
 333                     var c = canvas.fromXML('<section></section>'),
 334                         appended = c.doc().append({tag: 'header', klass: 'some.class'}),
 335                         children = c.doc().children();
 336
 337                     expect(children.length).to.equal(1);
 338                     expect(children[0].sameNode(appended)).to.be.true;
 339                 });
 340
 341                 it('can put new TextElement at the end', function() {
 342                     var c = canvas.fromXML('<section></section>'),
 343                         appended = c.doc().append({text: 'Alice'}),
 344                         children = c.doc().children();
 345
 346                     expect(children.length).to.equal(1);
 347                     expect(children[0].sameNode(appended)).to.be.true;
 348                     expect(children[0].getText()).to.equal('Alice');
 349                 });
 350
 351                 it('can put new NodeElement at the beginning', function() {
 352                     var c = canvas.fromXML('<section><div></div></section>'),
 353                         prepended = c.doc().prepend({tag: 'header', klass: 'some.class'}),
 354                         children = c.doc().children();
 355
 356                     expect(children).to.have.length(2);
 357                     expect(children[0].sameNode(prepended)).to.be.true;
 358                 });
 359
 360                 it('can put new TextElement at the beginning', function() {
 361                     var c = canvas.fromXML('<section><div></div></section>'),
 362                         prepended = c.doc().prepend({text: 'Alice'}),
 363                         children = c.doc().children();
 364
 365                     expect(children).to.have.length(2)
 366                     expect(children[0].sameNode(prepended)).to.be.true;
 367                     expect(children[0].getText()).to.equal('Alice');
 368                 });
 369
 370                 it('can put new NodeElement after another NodeElement', function() {
 371                     var c = canvas.fromXML('<section><div></div></section>'),
 372                         div = c.doc().children()[0],
 373                         added = div.after({tag: 'header', klass: 'some.class'}),
 374                         children = c.doc().children();
 375                     expect(children.length).to.equal(2);
 376                     expect(children[1].sameNode(added)).to.be.true;
 377                 });
 378
 379                 it('can put new Nodeelement before another element', function() {
 380                     var c = canvas.fromXML('<section><div></div></section>'),
 381                         div = c.doc().children()[0],
 382                         added = div.before({tag: 'header', klass: 'some.class'}),
 383                         children = c.doc().children();
 384                     expect(children.length).to.equal(2);
 385                     expect(children[0].sameNode(added)).to.be.true;
 386                 });
 387
 388                 it('can put new DocumentNodeElement after DocumentTextElement', function() {
 389                     var c = canvas.fromXML('<section>Alice</section>'),
 390                         text = c.doc().children()[0],
 391                         added = text.after({tag: 'p'}),
 392                         children = c.doc().children();
 393
 394                     expect(children.length).to.equal(2);
 395                     expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 396                     expect(children[0].getText()).to.equal('Alice');
 397                     expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 398                     expect(children[1].sameNode(added)).to.be.true;
 399                 });
 400                 it('can put new DocumentNodeElement before DocumentTextElement', function() {
 401                     var c = canvas.fromXML('<section>Alice</section>'),
 402                         text = c.doc().children()[0],
 403                         added = text.before({tag: 'p'}),
 404                         children = c.doc().children();
 405
 406                     expect(children.length).to.equal(2);
 407                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 408                     expect(children[0].sameNode(added)).to.be.true;
 409                     expect(children[1]).to.be.instanceOf(documentElement.DocumentTextElement);
 410                     expect(children[1].getText()).to.equal('Alice');
 411                 });
 412
 413                 it('can divide DocumentTextElement with a new DocumentNodeElement', function() {
 414                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 415                         section = c.doc(),
 416                         text = section.children()[0];
 417
 418                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 5}),
 419                         sectionChildren = section.children(),
 420                         lhsText = sectionChildren[0],
 421                         rhsText = sectionChildren[2];
 422
 423                     expect(lhsText.getText()).to.equal('Alice');
 424                     expect(returned.sameNode(sectionChildren[1]));
 425                     expect(rhsText.getText()).to.equal(' has a cat');
 426                 });
 427
 428                 it('treats dividing DocumentTextElement at the very end as appending after it', function() {
 429                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 430                         section = c.doc(),
 431                         text = section.children()[0];
 432
 433                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 15}),
 434                         sectionChildren = section.children(),
 435                         textElement = sectionChildren[0],
 436                         nodeElement = sectionChildren[1];
 437
 438                     expect(sectionChildren.length).to.equal(2);
 439                     expect(textElement.getText()).to.equal('Alice has a cat');
 440                     expect(returned.sameNode(nodeElement)).to.be.true;
 441                     expect(nodeElement.getWlxmlTag()).to.equal('aside');
 442                 });
 443
 444                 it('treats dividing DocumentTextElement at the very beginning as appending before it', function() {
 445                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 446                         section = c.doc(),
 447                         text = section.children()[0];
 448
 449                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 0}),
 450                         sectionChildren = section.children(),
 451                         nodeElement = sectionChildren[0],
 452                         textElement = sectionChildren[1];
 453
 454                     expect(sectionChildren.length).to.equal(2);
 455                     expect(textElement.getText()).to.equal('Alice has a cat');
 456                     expect(returned.sameNode(nodeElement)).to.be.true;
 457                     expect(nodeElement.getWlxmlTag()).to.equal('aside');
 458                 });
 459             });
 460
 461             describe('Splitting text', function() {
 462
 463                 it('splits DocumentTextElement\'s parent into two DocumentNodeElements of the same type', function() {
 464                     var c = canvas.fromXML('<section><header>Some header</header></section>'),
 465                         section = c.doc(),
 466                         text = section.children()[0].children()[0];
 467
 468                     var returnedValue = text.split({offset: 5});
 469                     expect(section.children().length).to.equal(2, 'section has two children');
 470
 471                     var header1 = section.children()[0];
 472                     var header2 = section.children()[1];
 473
 474                     expect(header1.getWlxmlTag()).to.equal('header', 'first section child represents wlxml header');
 475                     expect(header1.children().length).to.equal(1, 'first header has one text child');
 476                     expect(header1.children()[0].getText()).to.equal('Some ', 'first header has correct content');
 477                     expect(header2.getWlxmlTag()).to.equal('header', 'second section child represents wlxml header');
 478                     expect(header2.children().length).to.equal(1, 'second header has one text child');
 479                     expect(header2.children()[0].getText()).to.equal('header', 'second header has correct content');
 480
 481                     expect(returnedValue.first.sameNode(header1)).to.equal(true, 'first node returnde');
 482                     expect(returnedValue.second.sameNode(header2)).to.equal(true, 'second node returned');
 483                 });
 484
 485                 it('leaves empty copy of DocumentNodeElement if splitting at the very beginning', function() {
 486                         var c = canvas.fromXML('<section><header>Some header</header></section>'),
 487                         section = c.doc(),
 488                         text = section.children()[0].children()[0];
 489
 490                         text.split({offset: 0});
 491
 492                         var header1 = section.children()[0];
 493                         var header2 = section.children()[1];
 494
 495                         expect(header1.children().length).to.equal(0);
 496                         expect(header2.children()[0].getText()).to.equal('Some header');
 497                 });
 498
 499                 it('leaves empty copy of DocumentNodeElement if splitting at the very end', function() {
 500                         var c = canvas.fromXML('<section><header>Some header</header></section>'),
 501                         section = c.doc(),
 502                         text = section.children()[0].children()[0];
 503
 504                         text.split({offset: 11});
 505
 506                         var header1 = section.children()[0];
 507                         var header2 = section.children()[1];
 508
 509                         expect(header1.children()[0].getText()).to.equal('Some header');
 510                         expect(header2.children().length).to.equal(0);
 511                 });
 512
 513                 it('keeps DocumentTextElement\'s parent\'s children elements intact', function() {
 514                     var c = canvas.fromXML('\
 515                             <section>\
 516                                 <header>\
 517                                     A <span>fancy</span> and <span>nice</span> header\
 518                                 </header>\
 519                             </section>'),
 520                         section = c.doc(),
 521                         header = section.children()[0],
 522                         textAnd = header.children()[2];
 523
 524                     textAnd.split({offset: 2});
 525
 526                     var sectionChildren = section.children();
 527                     expect(sectionChildren.length).to.equal(2, 'Section has two children');
 528                     expect(sectionChildren[0].getWlxmlTag()).to.equal('header', 'First section element is a wlxml header');
 529                     expect(sectionChildren[1].getWlxmlTag()).to.equal('header', 'Second section element is a wlxml header');
 530
 531                     var firstHeaderChildren = sectionChildren[0].children();
 532                     expect(firstHeaderChildren.length).to.equal(3, 'First header has three children');
 533                     expect(firstHeaderChildren[0].getText()).to.equal('A ', 'First header starts with a text');
 534                     expect(firstHeaderChildren[1].getWlxmlTag()).to.equal('span', 'First header has span in the middle');
 535                     expect(firstHeaderChildren[2].getText()).to.equal(' a', 'First header ends with text');
 536
 537                     var secondHeaderChildren = sectionChildren[1].children();
 538                     expect(secondHeaderChildren.length).to.equal(3, 'Second header has three children');
 539                     expect(secondHeaderChildren[0].getText()).to.equal('nd ', 'Second header starts with text');
 540                     expect(secondHeaderChildren[1].getWlxmlTag()).to.equal('span', 'Second header has span in the middle');
 541                     expect(secondHeaderChildren[2].getText()).to.equal(' header', 'Second header ends with text');
 542                 });
 543             });
 544
 545             describe('wrapping', function() {
 546                 it('wraps DocumentNodeElement', function() {
 547                     var c = canvas.fromXML('<section><div></div></section>'),
 548                         div = c.doc().children()[0];
 549
 550                     var returned = div.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
 551                         parent = div.parent(),
 552                         parent2 = c.doc().children()[0];
 553
 554                     expect(returned.sameNode(parent)).to.be.true;
 555                     expect(returned.sameNode(parent2)).to.be.true;
 556                     expect(returned.getWlxmlTag()).to.equal('header');
 557                     expect(returned.getWlxmlClass()).to.equal('some.class');
 558                 });
 559                 it('wraps DocumentTextElement', function() {
 560                     var c = canvas.fromXML('<section>Alice</section>'),
 561                         text = c.doc().children()[0];
 562
 563                     var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
 564                         parent = text.parent(),
 565                         parent2 = c.doc().children()[0];
 566
 567                     expect(returned.sameNode(parent)).to.be.true;
 568                     expect(returned.sameNode(parent2)).to.be.true;
 569                     expect(returned.getWlxmlTag()).to.equal('header');
 570                     expect(returned.getWlxmlClass()).to.equal('some.class');
 571                 });
 572
 573                 describe('wrapping part of DocumentTextElement', function() {
 574                     [{start: 5, end: 12}, {start: 12, end: 5}].forEach(function(offsets) {
 575                         it('wraps in the middle ' + offsets.start + '/' + offsets.end, function() {
 576                             var c = canvas.fromXML('<section>Alice has a cat</section>'),
 577                                 text = c.doc().children()[0];
 578
 579                             var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: offsets.start, end: offsets.end}),
 580                                 children = c.doc().children();
 581
 582                             expect(children.length).to.equal(3);
 583
 584                             expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 585                             expect(children[0].getText()).to.equal('Alice');
 586
 587                             expect(children[1].sameNode(returned)).to.be.true;
 588                             expect(returned.getWlxmlTag()).to.equal('header');
 589                             expect(returned.getWlxmlClass()).to.equal('some.class');
 590                             expect(children[1].children().length).to.equal(1);
 591                             expect(children[1].children()[0].getText()).to.equal(' has a ');
 592
 593                             expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
 594                             expect(children[2].getText()).to.equal('cat');
 595                         });
 596                     });
 597
 598                     it('wraps whole text inside DocumentTextElement if offsets span entire content', function() {
 599                          var c = canvas.fromXML('<section>Alice has a cat</section>'),
 600                              text = c.doc().children()[0];
 601
 602                          var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: 0, end: 15}),
 603                              children = c.doc().children();
 604
 605                          expect(children.length).to.equal(1);
 606                          expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 607                          expect(children[0].children()[0].getText()).to.equal('Alice has a cat');
 608                     });
 609                 });
 610
 611                 it('wraps text spanning multiple sibling DocumentTextNodes', function() {
 612                     var c = canvas.fromXML('<section>Alice has a <span>small</span> cat</section>'),
 613                         section = c.doc(),
 614                         wrapper = c.wrapText({
 615                             inside: section,
 616                             _with: {tag: 'span', klass: 'some.class'},
 617                             offsetStart: 6,
 618                             offsetEnd: 4,
 619                             textNodeIdx: [0,2]
 620                         });
 621
 622                     expect(section.children().length).to.equal(2);
 623                     expect(section.children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 624                     expect(section.children()[0].getText()).to.equal('Alice ');
 625
 626                     var wrapper2 = section.children()[1];
 627                     expect(wrapper2.sameNode(wrapper)).to.be.true;
 628
 629                     var wrapperChildren = wrapper.children();
 630                     expect(wrapperChildren.length).to.equal(3);
 631                     expect(wrapperChildren[0].getText()).to.equal('has a ');
 632
 633                     expect(wrapperChildren[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 634                     expect(wrapperChildren[1].children().length).to.equal(1);
 635                     expect(wrapperChildren[1].children()[0].getText()).to.equal('small');
 636
 637                     expect(wrapperChildren[2].getText()).to.equal(' cat');
 638                 });
 639             });
 640
 641             describe('unwrapping', function() {
 642                 it('unwraps DocumentTextElement from its parent DocumentNodeElement if it\'s its only child', function() {
 643                     var c = canvas.fromXML('<section>Alice <span>has a</span> cat</section>'),
 644                     section = c.doc(),
 645                     text = section.children()[1].children()[0];
 646
 647                     var newTextContainer = text.unwrap();
 648
 649                     expect(section.children().length).to.equal(1, 'section has one child');
 650                     expect(section.children()[0].getText()).to.equal('Alice has a cat');
 651                     expect(newTextContainer.sameNode(c.doc())).to.equal(true, 'unwrap returns new text parent DocumentNodeElement');
 652                 })
 653             });
 654         });
 655
 656         describe('Lists api', function() {
 657             describe('creating lists', function() {
 658                 it('allows creation of a list from existing sibling DocumentElements', function() {
 659                     var c = canvas.fromXML('\
 660                         <section>\
 661                             Alice\
 662                             <div>has</div>\
 663                             a\
 664                             <div>cat</div>\
 665                         </section>'),
 666                         section = c.doc(),
 667                         textHas = section.children()[1],
 668                         divA = section.children()[2]
 669
 670                     c.list.create({element1: textHas, element2: divA});
 671
 672                     expect(section.children().length).to.equal(3, 'section has three child elements');
 673
 674                     var child1 = section.children()[0],
 675                         list = section.children()[1],
 676                         child3 = section.children()[2];
 677
 678                     expect(child1.getText()).to.equal('Alice');
 679                     expect(list.is('list')).to.equal(true, 'second child is a list');
 680                     expect(list.children().length).to.equal(2, 'list contains two elements');
 681                     list.children().forEach(function(child) {
 682                         expect(child.getWlxmlClass()).to.equal('item', 'list childs have wlxml class of item');
 683                     });
 684                     expect(child3.children()[0].getText()).to.equal('cat');
 685                 });
 686
 687                 it('allows creating nested list from existing sibling list items', function() {
 688                     var c = canvas.fromXML('\
 689                         <section>\
 690                             <div class="list-items">\
 691                                 <div class="item">A</div>\
 692                                 <div class="item">B</div>\
 693                                 <div class="item">C</div>\
 694                                 <div class="item">D</div>\
 695                             </div>\
 696                         </section>'),
 697                         outerList = c.doc().children()[0],
 698                         itemB = outerList.children()[1],
 699                         itemC = outerList.children()[2];
 700
 701
 702                         c.list.create({element1: itemB, element2: itemC});
 703
 704                     var outerListItems = outerList.children(),
 705                         innerList = outerListItems[1].children()[0],
 706                         innerListItems = innerList.children();
 707
 708                     expect(outerListItems.length).to.equal(3, 'outer list has three items');
 709                     expect(outerListItems[0].children()[0].getText()).to.equal('A', 'first outer item ok');
 710                     expect(outerListItems[1].getWlxmlClass()).to.equal('item', 'inner list is wrapped by item element');
 711
 712                     expect(innerList.is('list')).to.equal(true, 'inner list created');
 713                     expect(innerListItems.length).to.equal(2, 'inner list has two items');
 714                     expect(innerListItems[0].children()[0].getText()).to.equal('B', 'first inner item ok');
 715                     expect(innerListItems[1].children()[0].getText()).to.equal('C', 'second inner item ok');
 716
 717                     expect(outerListItems[2].children()[0].getText()).to.equal('D', 'last outer item ok');
 718
 719                 });
 720
 721             });
 722
 723             describe('extracting list items', function() {
 724                 it('creates two lists with extracted items in the middle if extracting from the middle of the list', function() {
 725                     var c = canvas.fromXML('\
 726                         <section>\
 727                             <div class="list.items">\
 728                                 <div class="item">0</div>\
 729                                 <div class="item">1</div>\
 730                                 <div class="item">2</div>\
 731                                 <div class="item">3</div>\
 732                             </div>\
 733                         </section>'),
 734                         list = c.doc().children()[0],
 735                         item1 = list.children()[1],
 736                         item2 = list.children()[2];
 737
 738                     c.list.extractItems({element1: item1, element2: item2});
 739
 740                     var section = c.doc(),
 741                         list1 = section.children()[0],
 742                         oldItem1 = section.children()[1],
 743                         oldItem2 = section.children()[2],
 744                         list2 = section.children()[3];
 745
 746                     expect(section.children().length).to.equal(4, 'section contains four children');
 747
 748                     expect(list1.is('list')).to.equal(true, 'first section child is a list');
 749                     expect(list1.children().length).to.equal(1, 'first list has one child');
 750                     expect(list1.children()[0].children()[0].getText()).to.equal('0', 'first item of the first list is a first item of the original list');
 751
 752                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item got extracted');
 753                     expect(oldItem1.getWlxmlClass() === undefined).to.equal(true, 'first extracted element has no wlxml class');
 754
 755                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item got extracted');
 756                     expect(oldItem2.getWlxmlClass() === undefined).to.equal(true, 'second extracted element has no wlxml class');
 757
 758                     expect(list2.is('list')).to.equal(true, 'last section child is a list');
 759                     expect(list2.children().length).to.equal(1, 'second list has one child');
 760                     expect(list2.children()[0].children()[0].getText()).to.equal('3', 'first item of the second list is a last item of the original list');
 761                 });
 762
 763                 it('puts extracted items above the list if starting item is the first one', function() {
 764                     var c = canvas.fromXML('\
 765                         <section>\
 766                             <div class="list.items">\
 767                                 <div class="item">0</div>\
 768                                 <div class="item">1</div>\
 769                                 <div class="item">2</div>\
 770                             </div>\
 771                         </section>'),
 772                         list = c.doc().children()[0],
 773                         item1 = list.children()[0],
 774                         item2 = list.children()[1],
 775                         item3 = list.children()[2];
 776
 777                     c.list.extractItems({element1: item1, element2: item2});
 778
 779                     var section = c.doc(),
 780                         oldItem1 = section.children()[0],
 781                         oldItem2 = section.children()[1],
 782                         newList = section.children()[2];
 783
 784                     expect(section.children().length).to.equal(3, 'section has three children');
 785                     expect(oldItem1.children()[0].getText()).to.equal('0', 'first item extracted');
 786                     expect(oldItem2.children()[0].getText()).to.equal('1', 'second item extracted');
 787                     expect(newList.is('list')).to.equal(true, 'list lies below extracted item');
 788                     expect(newList.children().length).to.equal(1, 'list has now one child');
 789                 });
 790
 791                 it('puts extracted items below the list if ending item is the last one', function() {
 792                     var c = canvas.fromXML('\
 793                         <section>\
 794                             <div class="list.items">\
 795                                 <div class="item">0</div>\
 796                                 <div class="item">1</div>\
 797                                 <div class="item">2</div>\
 798                             </div>\
 799                         </section>'),
 800                         list = c.doc().children()[0],
 801                         item1 = list.children()[0],
 802                         item2 = list.children()[1],
 803                         item3 = list.children()[2];
 804
 805                     c.list.extractItems({element1: item2, element2: item3});
 806
 807                     var section = c.doc(),
 808                         oldItem1 = section.children()[1],
 809                         oldItem2 = section.children()[2],
 810                         newList = section.children()[0];
 811
 812                     expect(section.children().length).to.equal(3, 'section has three children');
 813                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item extracted');
 814                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item extracted');
 815                     expect(newList.is('list')).to.equal(true, 'list lies above extracted item');
 816                     expect(newList.children().length).to.equal(1, 'list has now one child');
 817                 });
 818
 819                 it('removes list if all its items are extracted', function() {
 820                     var c = canvas.fromXML('\
 821                         <section>\
 822                             <div class="list.items">\
 823                                 <div class="item">some item</div>\
 824                                 <div class="item">some item 2</div>\
 825                             </div>\
 826                         </section>'),
 827                         list = c.doc().children()[0],
 828                         item1 = list.children()[0],
 829                         item2 = list.children()[1];
 830
 831                     c.list.extractItems({element1: item1, element2: item2});
 832
 833                     var section = c.doc(),
 834                         list1 = section.children()[0],
 835                         oldItem1 = section.children()[0],
 836                         oldItem2 = section.children()[1];
 837
 838                     expect(section.children().length).to.equal(2, 'section contains two children');
 839                     expect(oldItem1.children()[0].getText()).to.equal('some item');
 840                     expect(oldItem2.children()[0].getText()).to.equal('some item 2');
 841                 });
 842
 843                 it('creates two lists with extracted items in the middle if extracting from the middle of the list - nested case' , function() {
 844                     var c = canvas.fromXML('\
 845                         <section>\
 846                             <div class="list.items">\
 847                                 <div class="item">0</div>\
 848                                 <div class="item">\
 849                                     <div class="list.items">\
 850                                         <div class="item">1.1</div>\
 851                                         <div class="item">1.2</div>\
 852                                         <div class="item">1.3</div>\
 853                                     </div>\
 854                                 </div>\
 855                                 <div class="item">2</div>\
 856                             </div>\
 857                         </section>'),
 858                         list = c.doc().children()[0],
 859                         nestedList = list.children()[1].children()[0],
 860                         nestedListItem = nestedList.children()[1];
 861
 862                     c.list.extractItems({element1: nestedListItem, element2: nestedListItem});
 863
 864                     var section = c.doc(),
 865                         list = section.children()[0],
 866                         item1 = list.children()[0],
 867                         item2 = list.children()[1], //
 868                         item3 = list.children()[2],
 869                         item4 = list.children()[3], //
 870                         item5 = list.children()[4],
 871                         nestedList1 = item2.children()[0],
 872                         nestedList2 = item4.children()[0];
 873
 874                     expect(list.children().length).to.equal(5, 'top list has five items');
 875
 876                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 877
 878                     expect(item2.getWlxmlClass()).to.equal('item', 'first nested list is still wrapped in item element');
 879                     expect(nestedList1.children().length).to.equal(1, 'first nested list is left with one child');
 880                     expect(nestedList1.children()[0].children()[0].getText()).to.equal('1.1', 'first nested list item left alone');
 881
 882                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 883
 884                     expect(item4.getWlxmlClass()).to.equal('item', 'second nested list is still wrapped in item element');
 885                     expect(nestedList2.children().length).to.equal(1, 'second nested list is left with one child');
 886                     expect(nestedList2.children()[0].children()[0].getText()).to.equal('1.3', 'second nested list item left alone');
 887
 888                     expect(item5.children()[0].getText()).to.equal('2', 'last item ok');
 889                 });
 890
 891                 it('puts extracted items below the list if ending item is the last one - nested case' , function() {
 892                     var c = canvas.fromXML('\
 893                         <section>\
 894                             <div class="list.items">\
 895                                 <div class="item">0</div>\
 896                                 <div class="item">\
 897                                     <div class="list.items">\
 898                                         <div class="item">1.1</div>\
 899                                         <div class="item">1.2</div>\
 900                                         <div class="item">1.3</div>\
 901                                     </div>\
 902                                 </div>\
 903                                 <div class="item">2</div>\
 904                             </div>\
 905                         </section>'),
 906                         list = c.doc().children()[0],
 907                         nestedList = list.children()[1].children()[0],
 908                         nestedListItem1 = nestedList.children()[1],
 909                         nestedListItem2 = nestedList.children()[2];
 910
 911                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
 912
 913                     var section = c.doc(),
 914                         list = section.children()[0],
 915                         item1 = list.children()[0],
 916                         item2 = list.children()[1],
 917                         item3 = list.children()[2],
 918                         item4 = list.children()[3],
 919                         item5 = list.children()[4];
 920                     nestedList = item2.children()[0];
 921
 922                     expect(list.children().length).to.equal(5, 'top list has five items');
 923                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 924                     expect(item2.getWlxmlClass()).to.equal('item', 'nested list is still wrapped in item element');
 925                     expect(nestedList.children().length).to.equal(1, 'nested list is left with one child');
 926                     expect(nestedList.children()[0].children()[0].getText()).to.equal('1.1', 'nested list item left alone');
 927                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 928                     expect(item4.children()[0].getText()).to.equal('1.3', 'fourth item ok');
 929                     expect(item5.children()[0].getText()).to.equal('2', 'fifth item ok');
 930                 });
 931
 932                 it('puts extracted items above the list if starting item is the first one - nested case' , function() {
 933                     var c = canvas.fromXML('\
 934                         <section>\
 935                             <div class="list.items">\
 936                                 <div class="item">0</div>\
 937                                 <div class="item">\
 938                                     <div class="list.items">\
 939                                         <div class="item">1.1</div>\
 940                                         <div class="item">1.2</div>\
 941                                         <div class="item">1.3</div>\
 942                                     </div>\
 943                                 </div>\
 944                                 <div class="item">2</div>\
 945                             </div>\
 946                         </section>'),
 947                         list = c.doc().children()[0],
 948                         nestedList = list.children()[1].children()[0],
 949                         nestedListItem1 = nestedList.children()[0],
 950                         nestedListItem2 = nestedList.children()[1];
 951
 952                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
 953
 954                     var section = c.doc(),
 955                         list = section.children()[0],
 956                         item1 = list.children()[0],
 957                         item2 = list.children()[1],
 958                         item3 = list.children()[2],
 959                         item4 = list.children()[3],
 960                         item5 = list.children()[4];
 961                     nestedList = item4.children()[0];
 962
 963                     expect(list.children().length).to.equal(5, 'top list has five items');
 964                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
 965                     expect(item2.children()[0].getText()).to.equal('1.1', 'second item ok');
 966                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
 967
 968                     expect(item4.getWlxmlClass()).to.equal('item', 'nested list is still wrapped in item element');
 969                     expect(nestedList.children().length).to.equal(1, 'nested list is left with one child');
 970                     expect(nestedList.children()[0].children()[0].getText()).to.equal('1.3', 'nested list item left alone');
 971                     expect(item5.children()[0].getText()).to.equal('2', 'fifth item ok');
 972                 });
 973
 974                 it('removes list if all its items are extracted - nested case', function() {
 975                     var c = canvas.fromXML('\
 976                         <section>\
 977                             <div class="list.items">\
 978                                 <div class="item">0</div>\
 979                                 <div class="item">\
 980                                     <div class="list.items">\
 981                                         <div class="item">1.1</div>\
 982                                         <div class="item">1.2</div>\
 983                                     </div>\
 984                                 </div>\
 985                                 <div class="item">2</div>\
 986                             </div>\
 987                         </section>'),
 988                         list = c.doc().children()[0],
 989                         nestedList = list.children()[1].children()[0],
 990                         nestedListItem1 = nestedList.children()[0],
 991                         nestedListItem2 = nestedList.children()[1];
 992
 993                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
 994
 995                     var section = c.doc(),
 996                         list = section.children()[0],
 997                         item1 = list.children()[0],
 998                         item2 = list.children()[1],
 999                         item3 = list.children()[2],
1000                         item4 = list.children()[3];
1001
1002                     expect(list.children().length).to.equal(4, 'top list has four items');
1003                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
1004                     expect(item2.children()[0].getText()).to.equal('1.1', 'second item ok');
1005                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
1006                     expect(item4.children()[0].getText()).to.equal('2', 'fourth item ok');
1007                 });
1008
1009                 it('extracts items out of outer most list when merge flag is set to false', function() {
1010                     var c = canvas.fromXML('\
1011                         <section>\
1012                             <div class="list.items">\
1013                                 <div class="item">0</div>\
1014                                 <div class="item">\
1015                                     <div class="list.items">\
1016                                         <div class="item">1.1</div>\
1017                                         <div class="item">1.2</div>\
1018                                     </div>\
1019                                 </div>\
1020                                 <div class="item">2</div>\
1021                             </div>\
1022                         </section>'),
1023                         section = c.doc(),
1024                         list = section.children()[0],
1025                         nestedList = list.children()[1].children()[0],
1026                         nestedListItem = nestedList.children()[0];
1027
1028                     var test = c.list.extractItems({element1: nestedListItem, element2: nestedListItem, merge: false});
1029
1030                     expect(test).to.equal(true, 'extraction status ok');
1031
1032                     var sectionChildren = section.children(),
1033                         extractedItem = sectionChildren[1];
1034
1035                     expect(sectionChildren.length).to.equal(3, 'section has three children');
1036                     expect(sectionChildren[0].is('list')).to.equal(true, 'first child is a list');
1037
1038                     expect(extractedItem.getWlxmlTag()).to.equal('div', 'extracted item is a wlxml div');
1039                     expect(extractedItem.getWlxmlClass()).to.equal(undefined, 'extracted item has no wlxml class');
1040                     expect(extractedItem.children()[0].getText()).to.equal('1.1', 'extracted item ok');
1041                     expect(sectionChildren[2].is('list')).to.equal(true, 'second child is a list');
1042                 });
1043             });
1044         });
1045
1046     });
1047
1048     describe('Cursor', function() {
1049
1050         var getSelection;
1051
1052         var findTextNode = function(inside, text) {
1053             var nodes = inside.find(':not(iframe)').addBack().contents().filter(function() {
1054                 return this.nodeType === Node.TEXT_NODE && this.data === text;
1055             });
1056             if(nodes.length)
1057                 return nodes[0];
1058             return null;
1059         }
1060
1061         beforeEach(function() {
1062             getSelection = sinon.stub(window, 'getSelection');
1063         });
1064
1065         afterEach(function() {
1066             getSelection.restore();
1067         });
1068
1069         it('returns position when browser selection collapsed', function() {
1070             var c = canvas.fromXML('<section>Alice has a cat</section>'),
1071                 dom = c.doc().dom(),
1072                 text = findTextNode(dom, 'Alice has a cat');
1073
1074             expect(text.nodeType).to.equal(Node.TEXT_NODE, 'correct node selected');
1075             expect($(text).text()).to.equal('Alice has a cat');
1076
1077             getSelection.returns({
1078                 anchorNode: text,
1079                 focusNode: text,
1080                 anchorOffset: 5,
1081                 focusOffset: 5,
1082                 isCollapsed: true
1083             });
1084             var cursor = c.getCursor(),
1085                 position = cursor.getPosition();
1086
1087             expect(cursor.isSelecting()).to.equal(false, 'cursor is not selecting anything');
1088             expect(position.element.getText()).to.equal('Alice has a cat');
1089             expect(position.offset).to.equal(5);
1090             expect(position.offsetAtEnd).to.equal(false, 'offset is not at end');
1091
1092             getSelection.returns({
1093                 anchorNode: text,
1094                 focusNode: text,
1095                 anchorOffset: 15,
1096                 focusOffset: 15,
1097                 isCollapsed: true
1098             });
1099
1100             expect(cursor.getPosition().offsetAtEnd).to.equal(true, 'offset at end');
1101         });
1102
1103         it('returns boundries of selection when browser selection not collapsed', 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                     cat: findTextNode(dom, ' cat')
1110                 },
1111                 cursor = c.getCursor(),
1112                 aliceElement = c.getDocumentElement(text.alice),
1113                 catElement = c.getDocumentElement(text.cat);
1114
1115
1116                 [
1117                     {focus: text.alice, focusOffset: 1, anchor: text.cat,   anchorOffset: 2, selectionAnchor: catElement},
1118                     {focus: text.cat,   focusOffset: 2, anchor: text.alice, anchorOffset: 1, selectionAnchor: aliceElement}
1119                 ].forEach(function(s, idx) {
1120                     getSelection.returns({isColapsed: false, anchorNode: s.anchor, anchorOffset: s.anchorOffset, focusNode: s.focus, focusOffset: s.focusOffset});
1121
1122                     var selectionStart = cursor.getSelectionStart(),
1123                         selectionEnd = cursor.getSelectionEnd(),
1124                         selectionAnchor = cursor.getSelectionAnchor();
1125
1126                     expect(cursor.isSelecting()).to.equal(true, 'cursor is selecting');
1127                     expect(selectionStart.element.sameNode(aliceElement)).to.equal(true, '"Alice" is the start of the selection ' + idx);
1128                     expect(selectionStart.offset).to.equal(1, '"Alice" offset ok' + idx);
1129                     expect(selectionEnd.element.sameNode(catElement)).to.equal(true, '"Cat" is the start of the selection ' + idx);
1130                     expect(selectionEnd.offset).to.equal(2, '"Cat" offset ok' + idx);
1131                     expect(selectionAnchor.element.sameNode(s.selectionAnchor)).to.equal(true, 'anchor ok');
1132                     expect(selectionAnchor.offset).to.equal(s.anchorOffset, 'anchor offset ok');
1133                 });
1134         });
1135
1136         it('recognizes when browser selection boundries lies in sibling DocumentTextElements', function() {
1137             var c = canvas.fromXML('<section>Alice <span>has</span> a <span>big</span> cat</section>'),
1138                 dom = c.doc().dom(),
1139                 text = {
1140                     alice: findTextNode(dom, 'Alice '),
1141                     has: findTextNode(dom, 'has'),
1142                     a: findTextNode(dom, ' a '),
1143                     big: findTextNode(dom, 'big'),
1144                     cat: findTextNode(dom, ' cat'),
1145                 },
1146                 cursor = c.getCursor();
1147
1148             expect($(text.alice).text()).to.equal('Alice ');
1149             expect($(text.has).text()).to.equal('has');
1150             expect($(text.a).text()).to.equal(' a ');
1151             expect($(text.big).text()).to.equal('big');
1152             expect($(text.cat).text()).to.equal(' cat');
1153
1154             getSelection.returns({anchorNode: text.alice, focusNode: text.a});
1155             expect(cursor.isSelectingSiblings()).to.equal(true, '"Alice" and "a" are children');
1156
1157             getSelection.returns({anchorNode: text.alice, focusNode: text.cat});
1158             expect(cursor.isSelectingSiblings()).to.equal(true, '"Alice" and "cat" are children');
1159
1160             getSelection.returns({anchorNode: text.alice, focusNode: text.has});
1161             expect(cursor.isSelectingSiblings()).to.equal(false, '"Alice" and "has" are not children');
1162
1163             getSelection.returns({anchorNode: text.has, focusNode: text.big});
1164             expect(cursor.isSelectingSiblings()).to.equal(false, '"has" and "big" are not children');
1165
1166         })
1167
1168         describe('zero width space handling', function() {
1169             it('position range includes ZWS at the boundries of text in case when native selection api doesn\'t', function() {
1170                 var c = canvas.fromXML("<section>Alice</section>"),
1171                     dom = c.doc().dom(),
1172                     textNode = findTextNode(dom, 'Alice'),
1173                     cursor = c.getCursor();
1174
1175                 textNode.data = utils.unicode.ZWS + 'Alice';
1176                 getSelection.returns({anchorNode: textNode, anchorOffset: 1, focusNode: textNode, focusOffset: 1});
1177                 expect(cursor.getPosition().offset).to.equal(0);
1178                 expect(cursor.getPosition().offsetAtBeginning).to.equal(true, 'offset at beginning');
1179
1180                 textNode.data = 'Alice' + utils.unicode.ZWS;
1181                 getSelection.returns({anchorNode: textNode, anchorOffset: 5, focusNode: textNode, focusOffset: 5});
1182                 expect(cursor.getPosition().offset).to.equal(6);
1183                 expect(cursor.getPosition().offsetAtEnd).to.equal(true, 'offset at end');
1184             });
1185         });
1186     });
1187
1188     describe('Serializing document to WLXML', function() {
1189         it('keeps document intact when no changes have been made', function() {
1190             var xmlIn = '<section>Alice<div>has</div>a <span class="uri" meta-uri="http://cat.com">cat</span>!</section>',
1191                 c = canvas.fromXML(xmlIn),
1192                 xmlOut = c.toXML();
1193
1194             var parser = new DOMParser(),
1195                 input = parser.parseFromString(xmlIn, "application/xml").childNodes[0],
1196                 output = parser.parseFromString(xmlOut, "application/xml").childNodes[0];
1197
1198             expect(input.isEqualNode(output)).to.be.true;
1199         });
1200
1201         it('keeps arbitrary node attributes intact', function() {
1202             var xmlIn = '<section a="1" xmlns:dcterms="http://purl.org/dc/terms/"></section>',
1203                 $xmlOut = $(canvas.fromXML(xmlIn).toXML());
1204
1205             expect($xmlOut.attr('a')).to.equal('1');
1206             expect($xmlOut.attr('xmlns:dcterms')).to.equal('http://purl.org/dc/terms/');
1207         });
1208
1209         it('doesn\' serialize meta attribute if its empty', function() {
1210             var c;
1211
1212             c = canvas.fromXML('<section class="uri" meta-uri="some.uri"></section>');
1213             c.doc().setWlxmlMetaAttr('uri', '');
1214             expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'overriding attribute with zero length string');
1215
1216             c = canvas.fromXML('<section class="uri"></section>');
1217             c.doc().setWlxmlMetaAttr('uri', '');
1218             expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'setting attribute to zero length string');
1219         });
1220
1221         describe('output xml', function() {
1222             it('keeps entities intact', function() {
1223                 var xmlIn = '<section>&lt; &gt;</section>',
1224                     c = canvas.fromXML(xmlIn),
1225                     xmlOut = c.toXML();
1226                 expect(xmlOut).to.equal(xmlIn);
1227             });
1228             it('keeps entities intact when they form html/xml', function() {
1229                 var xmlIn = '<section>&lt;abc&gt;</section>',
1230                     c = canvas.fromXML(xmlIn),
1231                     xmlOut = c.toXML();
1232                 expect(xmlOut).to.equal(xmlIn);
1233             });
1234         });
1235
1236         describe('formatting output xml', function() {
1237             /*it('keeps white spaces at the edges of input xml', function() {
1238                 var xmlIn = '  <section></section>  ',
1239                 c = canvas.fromXML(xmlIn),
1240                 xmlOut = c.toXML();
1241
1242                 expect(xmlOut.substr(4)).to.equal('   <', 'start');
1243                 expect(xmlOut.substr(-2)).to.equal('>  ', 'end');
1244             });*/
1245             it('keeps white space between XML nodes', function() {
1246                 var xmlIn = '<section>\n\n\n<div></div>\n\n\n<div></div>\n\n\n</section>',
1247                 c = canvas.fromXML(xmlIn),
1248                 xmlOut = c.toXML();
1249
1250                 var partsIn = xmlIn.split('\n\n\n'),
1251                     partsOut = xmlOut.split('\n\n\n');
1252
1253                 expect(partsIn).to.deep.equal(partsOut);
1254             });
1255
1256             it('keeps white space between XML nodes - inline case', function() {
1257                 var xmlIn = '<section>\n\n\n<span></span>\n\n\n<span></span>\n\n\n</section>',
1258                 c = canvas.fromXML(xmlIn),
1259                 xmlOut = c.toXML();
1260
1261                 var partsIn = xmlIn.split('\n\n\n'),
1262                     partsOut = xmlOut.split('\n\n\n');
1263
1264                 expect(partsIn).to.deep.equal(partsOut);
1265             });
1266
1267             it('keeps white space at the beginning of text', function() {
1268                 var xmlIn = '<section>    abc<div>some div</div>    abc</section>',
1269                     c = canvas.fromXML(xmlIn),
1270                     xmlOut = c.toXML();
1271
1272                 expect(xmlOut).to.equal(xmlIn);
1273             });
1274
1275             it('nests new children block elements', function() {
1276                 var c = canvas.fromXML('<section></section>');
1277
1278                 c.doc().append({tag: 'header'});
1279
1280                 var xmlOut = c.toXML();
1281                 expect(xmlOut.split('\n  ')[0]).to.equal('<section>', 'nesting start ok');
1282                 expect(xmlOut.split('\n').slice(-1)[0]).to.equal('</section>', 'nesting end ok');
1283
1284             });
1285
1286             it('doesn\'t nest new children inline elements', function() {
1287                 var c = canvas.fromXML('<section></section>');
1288
1289                 c.doc().append({tag: 'span'});
1290
1291                 var xmlOut = c.toXML();
1292                 expect(xmlOut).to.equal('<section><span></span></section>');
1293             });
1294
1295             it('keeps original white space at the end of text', function() {
1296
1297                 var xmlIn = '<header>    Some text ended with white space \
1298                 \
1299                 <span class="uri">Some text</span> some text\
1300             \
1301             </header>',
1302                     c = canvas.fromXML(xmlIn);
1303
1304             var xmlOut = c.toXML();
1305             console.log(xmlOut);
1306             expect(xmlOut).to.equal(xmlIn);
1307             });
1308
1309             it('keeps white space around text node', function() {
1310                 var xmlIn = '<section>\
1311                 <header>header1</header>\
1312                 Some text surrounded by white space\
1313                 <header>header2</header>\
1314             </section>',
1315                     c = canvas.fromXML(xmlIn);
1316
1317                 var xmlOut = c.toXML();
1318                 expect(xmlOut).to.equal(xmlIn);
1319             });
1320
1321             it('keeps white space around text node - last node case', function() {
1322                 var xmlIn = '<section>\
1323                 <header>header</header>\
1324                     \
1325                 Some text surrounded by white space\
1326                     \
1327             </section>',
1328                     c = canvas.fromXML(xmlIn);
1329
1330                 var xmlOut = c.toXML();
1331                 expect(xmlOut).to.equal(xmlIn);
1332             });
1333
1334             it('keeps white space after detaching text element', function() {
1335                 var xmlIn = '<section><header>header</header>\n\
1336                     \n\
1337                 text1\n\
1338                     \n\
1339             </section>',
1340                     expectedXmlOut = '<section><header>header</header>\n\
1341                     \n\
1342                 \n\
1343                     \n\
1344             </section>',
1345                     c = canvas.fromXML(xmlIn),
1346                     children = c.doc().children(),
1347                     text = children[children.length-1];
1348
1349                 expect(text.getText()).to.equal('text1');
1350
1351                 text.detach();
1352
1353                 var xmlOut = c.toXML();
1354                 expect(xmlOut).to.equal(expectedXmlOut);
1355             });
1356
1357         })
1358     })
1359 });
1360
1361
1362 });