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
  17
  18     describe('ZWS', function() {
  19         var view, section, textElement;
  20
  21         beforeEach(function() {
  22             var c = canvas.fromXML('<section></section>');
  23
  24             section = c.doc();
  25             textElement = section.children()[0];
  26             view = c.view()[0];
  27             document.getElementsByTagName('body')[0].appendChild(view);
  28         });
  29
  30         afterEach(function() {
  31             view.parentNode.removeChild(view);
  32         });
  33
  34         var getTextContainerNode = function(textElement) {
  35             return textElement.dom().contents()[0];
  36         }
  37
  38         it('is set automatically on all empty DocumentTextElements', function() {
  39             expect(getTextContainerNode(textElement).data).to.equal(utils.unicode.ZWS);
  40
  41             var header = section.append({tag: 'header'}),
  42                 newText = header.append({text: ''}),
  43                 textNode = getTextContainerNode(textElement);
  44
  45             expect(textNode.data).to.equal(utils.unicode.ZWS);
  46         });
  47
  48         it('is added automatically when whole text gets deleted', function() {
  49             getTextContainerNode(textElement).data = '';
  50
  51             window.setTimeout(function() {
  52                 expect(getTextContainerNode(textElement).data).to.equal(utils.unicode.ZWS);
  53             }, 0)
  54
  55             var header = section.append({tag: 'header'}),
  56                 newText = header.append({text: 'Alice'}),
  57                 textNode = getTextContainerNode(newText);
  58
  59             expect(textNode.data).to.have.length('Alice'.length);
  60             textNode.data = '';
  61
  62             window.setTimeout(function() {
  63                 expect(textNode.data).to.equal(utils.unicode.ZWS);
  64             }, 0)
  65         });
  66     });
  67
  68     describe('Internal HTML representation of a DocumentNodeElement', function() {
  69         it('is always a div tag', function() {
  70             ['section', 'header', 'span', 'aside', 'figure'].forEach(function(tagName) {
  71                 var dom = canvas.fromXML('<' + tagName + '></' + tagName + '>').doc().dom();
  72                 expect(dom.prop('tagName')).to.equal('DIV', tagName + ' is represented as div');
  73             });
  74         });
  75         it('has wlxml tag put into wlxml-tag attribute of its internal container', function() {
  76             var dom = canvas.fromXML('<section></section>').doc().dom();
  77             expect(dom.children('[document-element-content]').attr('wlxml-tag')).to.equal('section');
  78         });
  79         it('has wlxml class put into wlxml-class attribute of its internal containr, dots replaced with dashes', function() {
  80             var dom = canvas.fromXML('<section class="some.class"></section>').doc().dom();
  81             expect(dom.children('[document-element-content]').attr('wlxml-class')).to.equal('some-class');
  82         });
  83     });
  84
  85     describe('Internal HTML representation of a DocumentTextElement', function() {
  86         it('is text node wrapped in a div with document-text-element attribute set', function() {
  87             var dom = canvas.fromXML('<section>Alice</section>').doc().children()[0].dom();
  88             expect(dom.prop('tagName')).to.equal('DIV');
  89             expect(dom.attr('document-text-element')).to.equal('');
  90             expect(dom.contents().length).to.equal(1);
  91             expect(dom.contents()[0].nodeType).to.equal(Node.TEXT_NODE);
  92             expect($(dom.contents()[0]).text()).to.equal('Alice');
  93         });
  94     });
  95
  96     describe('basic properties', function() {
  97         it('renders empty document when canvas created from empty XML', function() {
  98             var c = canvas.fromXML('');
  99             expect(c.doc()).to.equal(null);
 100         });
 101
 102         it('gives access to its document root node', function() {
 103             var c = canvas.fromXML('<section></section>');
 104             expect(c.doc().getWlxmlTag()).to.equal('section');
 105         });
 106
 107         describe('root element', function() {
 108             it('has no parent', function() {
 109                 var c = canvas.fromXML('<section></section>');
 110                 expect(c.doc().parent()).to.be.null;
 111             });
 112         });
 113
 114         describe('DocumentTextElement', function() {
 115             it('can have its content set', function() {
 116                 var c = canvas.fromXML('<section>Alice</section>'),
 117                     root = c.doc(),
 118                     text = root.children()[0];
 119
 120                 text.setText('a cat');
 121                 expect(root.children()[0].getText()).to.equal('a cat');
 122             });
 123         });
 124
 125         describe('DocumentNodeElement', function() {
 126             it('knows index of its child', function() {
 127                 var c = canvas.fromXML('<section><div></div><header></header><span></span></section>'),
 128                     root = c.doc(),
 129                     child = root.children()[1];
 130                 expect(root.childIndex(child)).to.equal(1);
 131             });
 132
 133             it('knows WLXML tag it renders', function(){
 134                 var c = canvas.fromXML('<section></section>'),
 135                     section = c.doc();
 136                 expect(section.getWlxmlTag()).to.equal('section', 'initial tag is section');
 137                 section.setWlxmlTag('header');
 138                 expect(section.getWlxmlTag()).to.equal('header', 'tag is changed to header');
 139             });
 140
 141             it('knows WLXML class of a WLXML tag it renders', function(){
 142                 var c = canvas.fromXML('<section class="some.class.A"></section>'),
 143                     section = c.doc();
 144                 expect(section.getWlxmlClass()).to.equal('some.class.A');
 145                 section.setWlxmlClass('some.class.B');
 146                 expect(section.getWlxmlClass()).to.equal('some.class.B');
 147                 section.setWlxmlClass(null);
 148                 expect(section.getWlxmlClass()).to.be.undefined;
 149             });
 150
 151
 152
 153             describe('element has meta attributes', function() {
 154                 it('can change its meta attributes', function() {
 155                     var c = canvas.fromXML('<section><span class="uri" meta-uri="someuri"></span></section>'),
 156                     span = c.doc().children()[0];
 157
 158                     expect(span.getWlxmlMetaAttr('uri')).to.equal('someuri');
 159                     span.setWlxmlMetaAttr('uri', 'otheruri');
 160                     expect(span.getWlxmlMetaAttr('uri')).to.equal('otheruri');
 161                 });
 162
 163                 it('changes its meta attributes with class change', function() {
 164                     var c = canvas.fromXML('<section><span class="uri" meta-uri="someuri"></span></section>'),
 165                     span = c.doc().children()[0];
 166
 167                     expect(span.getWlxmlMetaAttr('uri')).to.equal('someuri');
 168                     span.setWlxmlClass('author');
 169                     expect(span.getWlxmlMetaAttr('uri')).to.be.undefined;
 170                 });
 171
 172                 it('keeps meta attribute value on class change if a new class has this attribute', function() {
 173                     var c = canvas.fromXML('<section><span class="uri" meta-uri="someuri"></span></section>'),
 174                     span = c.doc().children()[0];
 175                     span.setWlxmlClass('uri.some.subclass');
 176                     expect(span.getWlxmlMetaAttr('uri')).to.equal('someuri');
 177                 });
 178             });
 179         });
 180
 181         it('returns DocumentNodeElement instance from HTMLElement', function() {
 182             var c = canvas.fromXML('<section></section>'),
 183                 htmlElement = c.doc().dom().get(0),
 184                 element = c.getDocumentElement(htmlElement);
 185             expect(element).to.be.instanceOf(documentElement.DocumentNodeElement);
 186             expect(element.sameNode(c.doc()));
 187         });
 188
 189         it('returns DocumentTextElement instance from Text Node', function() {
 190             var c = canvas.fromXML('<section>Alice</section>'),
 191                 aliceElement = c.doc().children()[0],
 192                 textNode = aliceElement.dom().contents()[0],
 193                 element = c.getDocumentElement(textNode);
 194
 195             expect(textNode.nodeType).to.equal(Node.TEXT_NODE, 'text node selected');
 196             expect($(textNode).text()).to.equal('Alice');
 197
 198             expect(element).to.be.instanceOf(documentElement.DocumentTextElement);
 199             expect(element.sameNode(c.doc().children()[0]));
 200         });
 201     });
 202
 203
 204
 205     describe('document representation api', function() {
 206         describe('document root element', function() {
 207             var c = canvas.fromXML('<section></section>');
 208             it('exists', function() {
 209                 expect(c.doc()).to.be.instanceOf(documentElement.DocumentElement);
 210             });
 211             it('is of type DocumentNodeElement', function() {
 212                 expect(c.doc()).to.be.instanceOf(documentElement.DocumentNodeElement);
 213             });
 214         });
 215
 216         describe('DocumentElements comparison', function() {
 217             it('reports dwo DocumentElements to be the same when they represent the same wlxml document element', function() {
 218                 var c = canvas.fromXML('<section><div></div><div></div></section>'),
 219                     first_div1 = c.doc().children()[0],
 220                     first_div2 = c.doc().children()[0],
 221                     second_div = c.doc().children()[1];
 222                 expect(first_div1.sameNode(first_div1)).to.be.true;
 223                 expect(first_div1.sameNode(first_div2)).to.be.true;
 224                 expect(first_div1.sameNode(second_div)).to.be.false;
 225             });
 226         });
 227
 228         describe('traversing', function() {
 229             it('reports element nodes', function() {
 230                 var c = canvas.fromXML('<section><div></div></section>'),
 231                     children = c.doc().children();
 232                 expect(children.length).to.equal(1);
 233                 expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 234
 235                 c = canvas.fromXML('<section><div></div><div></div></section>'),
 236                     children = c.doc().children();
 237                 expect(children.length).to.equal(2);
 238                 expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 239                 expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 240             });
 241
 242             it('reports text nodes', function() {
 243                 var c = canvas.fromXML('<section>Alice</section>'),
 244                     children = c.doc().children();
 245                 expect(children.length).to.equal(1);
 246                 expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 247             });
 248
 249             describe('accessing parents', function() {
 250                 it('returns DocumentNodeElement representing parent in wlxml document as DocumentNodeElement parent', function() {
 251                     var c = canvas.fromXML('<section><div></div></section>'),
 252                         div = c.doc().children()[0];
 253                     expect(div.parent().sameNode(c.doc())).to.be.true;
 254                 });
 255                 it('returns DocumentNodeElement representing parent in wlxml document as DocumentTextElement parent', function() {
 256                     var c = canvas.fromXML('<section>Alice</section>'),
 257                         text = c.doc().children()[0];
 258                     expect(text.parent().sameNode(c.doc())).to.be.true;
 259                 });
 260             });
 261
 262             describe('accessing sibling parents of two elements', function() {
 263                 it('returns elements themself if they have direct common parent', function() {
 264                     var c = canvas.fromXML('<section>\
 265                         <div>\
 266                             <div>A</div>\
 267                             <div>B</div>\
 268                         </div>\
 269                     </section>'),
 270                         section = c.doc(),
 271                         wrappingDiv = c.doc().children()[0],
 272                         divA = wrappingDiv.children()[0],
 273                         divB = wrappingDiv.children()[1];
 274
 275                     var siblingParents = c.getSiblingParents({element1: divA, element2: divB});
 276
 277                     expect(siblingParents.element1.sameNode(divA)).to.equal(true, 'divA');
 278                     expect(siblingParents.element2.sameNode(divB)).to.equal(true, 'divB');
 279                 });
 280
 281                 it('returns sibling parents - example 1', function() {
 282                     var c = canvas.fromXML('<section>Alice <span>has a cat</span></section>'),
 283                         section = c.doc(),
 284                         aliceText = section.children()[0],
 285                         span = section.children()[1],
 286                         spanText = span.children()[0];
 287
 288                     var siblingParents = c.getSiblingParents({element1: aliceText, element2: spanText});
 289
 290                     expect(siblingParents.element1.sameNode(aliceText)).to.equal(true, 'aliceText');
 291                     expect(siblingParents.element2.sameNode(span)).to.equal(true, 'span');
 292                 });
 293             })
 294
 295             describe('free text handling', function() {
 296                     it('sees free text', function() {
 297                         var c = canvas.fromXML('<section>Alice <span>has</span> a cat</section>'),
 298                             children = c.doc().children();
 299                         expect(children.length).to.equal(3);
 300                         expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 301                         expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 302                         expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
 303                     });
 304             });
 305
 306             describe('empty nodes handling', function() {
 307                 it('says empty element node from XML source has one empty DocumentTextElement', function() {
 308                     var c = canvas.fromXML('<section></section>');
 309                     expect(c.doc().children()).to.have.length(1);
 310                     expect(c.doc().children()[0].getText()).to.equal('');
 311                 });
 312
 313                 it('allows creation of an empty element node', function() {
 314                     var c = canvas.fromXML('<section></section>'),
 315                         section = c.doc(),
 316                         header = section.append({tag: 'header'});
 317                     expect(header.children()).to.have.length(0);
 318                 });
 319             });
 320
 321             describe('white characters handling', function() {
 322
 323                 it('says element node with one space has one DocumentTextElement', function() {
 324                     var c = canvas.fromXML('<section> </section>');
 325                     expect(c.doc().children().length).to.equal(1);
 326                     expect(c.doc().children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 327                     expect(c.doc().children()[0].getText()).to.equal(' ');
 328                 });
 329                 it('ignores white space surrounding block elements', function() {
 330                     var c = canvas.fromXML('<section> <div></div> </section>');
 331                     var children = c.doc().children();
 332                     expect(children.length).to.equal(1);
 333                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 334                 });
 335                 it('ignores white space between block elements', function() {
 336                     var c = canvas.fromXML('<section><div></div> <div></div></section>');
 337                     var children = c.doc().children();
 338                     expect(children.length === 2);
 339                     [0,1].forEach(function(idx) {
 340                         expect(children[idx]).to.be.instanceOf(documentElement.DocumentNodeElement);
 341                     });
 342                 });
 343
 344                 it('trims white space from the beginning and the end of the block elements', function() {
 345                     var c = canvas.fromXML('<section> Alice <span>has</span> a cat </section>');
 346                     expect(c.doc().children()[0].getText()).to.equal('Alice ');
 347                     expect(c.doc().children()[2].getText()).to.equal(' a cat');
 348                 });
 349
 350                 it('normalizes string of white characters to one space at the inline element boundries', function() {
 351                     var c = canvas.fromXML('<span>   Alice has a cat   </span>');
 352                     expect(c.doc().children()[0].getText()).to.equal(' Alice has a cat ');
 353                 });
 354
 355                 it('normalizes string of white characters to one space before inline element', function() {
 356                     var c = canvas.fromXML('<div>Alice has  <span>a cat</span></div>');
 357                     expect(c.doc().children()[0].getText()).to.equal('Alice has ');
 358                 });
 359
 360                 it('normalizes string of white characters to one space after inline element', function() {
 361                     var c = canvas.fromXML('<div>Alice has <span>a</span>  cat</div>');
 362                     expect(c.doc().children()[2].getText()).to.equal(' cat');
 363                 });
 364             });
 365
 366             describe('getting vertically first text element', function() {
 367                 it('returns the first child if it\'s text element, ignores metadata', function() {
 368                     var c = canvas.fromXML('<section><metadata><dc:author>author</dc:author></metadata>Alice<div>has</div>a cat</section>'),
 369                         first = c.doc().getVerticallyFirstTextElement();
 370
 371                     expect(first.sameNode(c.doc().children()[1])).to.be.true;
 372                 });
 373
 374                 it('looks recursively inside node elements if they precede text element', function() {
 375                     var c = canvas.fromXML('\
 376                             <section>\
 377                                 <div>\
 378                                     <div>\
 379                                         Alice\
 380                                     </div>\
 381                                 </div>\
 382                                 Some text\
 383                             </section>'),
 384                         textAlice = c.doc().children()[0].children()[0].children()[0],
 385                         first = c.doc().getVerticallyFirstTextElement();
 386
 387                     expect(textAlice).to.be.instanceOf(documentElement.DocumentTextElement);
 388                     expect(first.sameNode(textAlice)).to.be.true;
 389                 });
 390             });
 391         });
 392
 393         describe('manipulation api', function() {
 394
 395             describe('Basic Element inserting', function() {
 396                 it('can put new NodeElement at the end', function() {
 397                     var c = canvas.fromXML('<section><div></div></section>'),
 398                         appended = c.doc().append({tag: 'header', klass: 'some.class'}),
 399                         children = c.doc().children();
 400
 401                     expect(children.length).to.equal(2);
 402                     expect(children[1].sameNode(appended)).to.be.true;
 403                 });
 404
 405                 it('can put new TextElement at the end', function() {
 406                     var c = canvas.fromXML('<section><div><div></section>'),
 407                         appended = c.doc().append({text: 'Alice'}),
 408                         children = c.doc().children();
 409
 410                     expect(children.length).to.equal(2);
 411                     expect(children[1].sameNode(appended)).to.be.true;
 412                     expect(children[1].getText()).to.equal('Alice');
 413                 });
 414
 415                 it('can put new NodeElement at the beginning', function() {
 416                     var c = canvas.fromXML('<section><div></div></section>'),
 417                         prepended = c.doc().prepend({tag: 'header', klass: 'some.class'}),
 418                         children = c.doc().children();
 419
 420                     expect(children).to.have.length(2);
 421                     expect(children[0].sameNode(prepended)).to.be.true;
 422                 });
 423
 424                 it('can put new TextElement at the beginning', function() {
 425                     var c = canvas.fromXML('<section><div></div></section>'),
 426                         prepended = c.doc().prepend({text: 'Alice'}),
 427                         children = c.doc().children();
 428
 429                     expect(children).to.have.length(2)
 430                     expect(children[0].sameNode(prepended)).to.be.true;
 431                     expect(children[0].getText()).to.equal('Alice');
 432                 });
 433
 434                 it('can put new NodeElement after another NodeElement', function() {
 435                     var c = canvas.fromXML('<section><div></div></section>'),
 436                         div = c.doc().children()[0],
 437                         added = div.after({tag: 'header', klass: 'some.class'}),
 438                         children = c.doc().children();
 439                     expect(children.length).to.equal(2);
 440                     expect(children[1].sameNode(added)).to.be.true;
 441                 });
 442
 443                 it('can put new Nodeelement before another element', function() {
 444                     var c = canvas.fromXML('<section><div></div></section>'),
 445                         div = c.doc().children()[0],
 446                         added = div.before({tag: 'header', klass: 'some.class'}),
 447                         children = c.doc().children();
 448                     expect(children.length).to.equal(2);
 449                     expect(children[0].sameNode(added)).to.be.true;
 450                 });
 451
 452                 it('can put new DocumentNodeElement after DocumentTextElement', function() {
 453                     var c = canvas.fromXML('<section>Alice</section>'),
 454                         text = c.doc().children()[0],
 455                         added = text.after({tag: 'p'}),
 456                         children = c.doc().children();
 457
 458                     expect(children.length).to.equal(2);
 459                     expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 460                     expect(children[0].getText()).to.equal('Alice');
 461                     expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 462                     expect(children[1].sameNode(added)).to.be.true;
 463                 });
 464                 it('can put new DocumentNodeElement before DocumentTextElement', function() {
 465                     var c = canvas.fromXML('<section>Alice</section>'),
 466                         text = c.doc().children()[0],
 467                         added = text.before({tag: 'p'}),
 468                         children = c.doc().children();
 469
 470                     expect(children.length).to.equal(2);
 471                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 472                     expect(children[0].sameNode(added)).to.be.true;
 473                     expect(children[1]).to.be.instanceOf(documentElement.DocumentTextElement);
 474                     expect(children[1].getText()).to.equal('Alice');
 475                 });
 476
 477                 it('can divide DocumentTextElement with a new DocumentNodeElement', function() {
 478                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 479                         section = c.doc(),
 480                         text = section.children()[0];
 481
 482                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 5}),
 483                         sectionChildren = section.children(),
 484                         lhsText = sectionChildren[0],
 485                         rhsText = sectionChildren[2];
 486
 487                     expect(lhsText.getText()).to.equal('Alice');
 488                     expect(returned.sameNode(sectionChildren[1]));
 489                     expect(rhsText.getText()).to.equal(' has a cat');
 490                 });
 491
 492                 it('treats dividing DocumentTextElement at the very end as appending after it', function() {
 493                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 494                         section = c.doc(),
 495                         text = section.children()[0];
 496
 497                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 15}),
 498                         sectionChildren = section.children(),
 499                         textElement = sectionChildren[0],
 500                         nodeElement = sectionChildren[1];
 501
 502                     expect(sectionChildren.length).to.equal(2);
 503                     expect(textElement.getText()).to.equal('Alice has a cat');
 504                     expect(returned.sameNode(nodeElement)).to.be.true;
 505                     expect(nodeElement.getWlxmlTag()).to.equal('aside');
 506                 });
 507
 508                 it('treats dividing DocumentTextElement at the very beginning as appending before it', function() {
 509                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
 510                         section = c.doc(),
 511                         text = section.children()[0];
 512
 513                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 0}),
 514                         sectionChildren = section.children(),
 515                         nodeElement = sectionChildren[0],
 516                         textElement = sectionChildren[1];
 517
 518                     expect(sectionChildren.length).to.equal(2);
 519                     expect(textElement.getText()).to.equal('Alice has a cat');
 520                     expect(returned.sameNode(nodeElement)).to.be.true;
 521                     expect(nodeElement.getWlxmlTag()).to.equal('aside');
 522                 });
 523             });
 524
 525             describe('Removing elements', function() {
 526                 it('merges left and right DocumentTextElement sibling of a detached DocumentNodeElement', function() {
 527                     var c = canvas.fromXML('<section>Alice<div>has</div>a cat</section>'),
 528                         section = c.doc(),
 529                         div = section.children()[1];
 530
 531                     div.detach();
 532
 533                     var sectionChildren = section.children(),
 534                         textElement = sectionChildren[0];
 535
 536                     expect(sectionChildren).to.have.length(1);
 537                     expect(textElement.getText()).to.equal('Alicea cat');
 538                 });
 539             });
 540
 541             describe('Splitting text', function() {
 542
 543                 it('splits DocumentTextElement\'s parent into two DocumentNodeElements of the same type', function() {
 544                     var c = canvas.fromXML('<section><header>Some header</header></section>'),
 545                         section = c.doc(),
 546                         text = section.children()[0].children()[0];
 547
 548                     var returnedValue = text.split({offset: 5});
 549                     expect(section.children().length).to.equal(2, 'section has two children');
 550
 551                     var header1 = section.children()[0];
 552                     var header2 = section.children()[1];
 553
 554                     expect(header1.getWlxmlTag()).to.equal('header', 'first section child represents wlxml header');
 555                     expect(header1.children().length).to.equal(1, 'first header has one text child');
 556                     expect(header1.children()[0].getText()).to.equal('Some ', 'first header has correct content');
 557                     expect(header2.getWlxmlTag()).to.equal('header', 'second section child represents wlxml header');
 558                     expect(header2.children().length).to.equal(1, 'second header has one text child');
 559                     expect(header2.children()[0].getText()).to.equal('header', 'second header has correct content');
 560
 561                     expect(returnedValue.first.sameNode(header1)).to.equal(true, 'first node returnde');
 562                     expect(returnedValue.second.sameNode(header2)).to.equal(true, 'second node returned');
 563                 });
 564
 565                 it('leaves empty copy of DocumentNodeElement if splitting at the very beginning', function() {
 566                         var c = canvas.fromXML('<section><header>Some header</header></section>'),
 567                         section = c.doc(),
 568                         text = section.children()[0].children()[0];
 569
 570                         text.split({offset: 0});
 571
 572                         var header1 = section.children()[0];
 573                         var header2 = section.children()[1];
 574
 575                         expect(header1.children().length).to.equal(0);
 576                         expect(header2.children()[0].getText()).to.equal('Some header');
 577                 });
 578
 579                 it('leaves empty copy of DocumentNodeElement if splitting at the very end', function() {
 580                         var c = canvas.fromXML('<section><header>Some header</header></section>'),
 581                         section = c.doc(),
 582                         text = section.children()[0].children()[0];
 583
 584                         text.split({offset: 11});
 585
 586                         var header1 = section.children()[0];
 587                         var header2 = section.children()[1];
 588
 589                         expect(header1.children()[0].getText()).to.equal('Some header');
 590                         expect(header2.children().length).to.equal(0);
 591                 });
 592
 593                 it('keeps DocumentTextElement\'s parent\'s children elements intact', function() {
 594                     var c = canvas.fromXML('\
 595                             <section>\
 596                                 <header>\
 597                                     A <span>fancy</span> and <span>nice</span> header\
 598                                 </header>\
 599                             </section>'),
 600                         section = c.doc(),
 601                         header = section.children()[0],
 602                         textAnd = header.children()[2];
 603
 604                     textAnd.split({offset: 2});
 605
 606                     var sectionChildren = section.children();
 607                     expect(sectionChildren.length).to.equal(2, 'Section has two children');
 608                     expect(sectionChildren[0].getWlxmlTag()).to.equal('header', 'First section element is a wlxml header');
 609                     expect(sectionChildren[1].getWlxmlTag()).to.equal('header', 'Second section element is a wlxml header');
 610
 611                     var firstHeaderChildren = sectionChildren[0].children();
 612                     expect(firstHeaderChildren.length).to.equal(3, 'First header has three children');
 613                     expect(firstHeaderChildren[0].getText()).to.equal('A ', 'First header starts with a text');
 614                     expect(firstHeaderChildren[1].getWlxmlTag()).to.equal('span', 'First header has span in the middle');
 615                     expect(firstHeaderChildren[2].getText()).to.equal(' a', 'First header ends with text');
 616
 617                     var secondHeaderChildren = sectionChildren[1].children();
 618                     expect(secondHeaderChildren.length).to.equal(3, 'Second header has three children');
 619                     expect(secondHeaderChildren[0].getText()).to.equal('nd ', 'Second header starts with text');
 620                     expect(secondHeaderChildren[1].getWlxmlTag()).to.equal('span', 'Second header has span in the middle');
 621                     expect(secondHeaderChildren[2].getText()).to.equal(' header', 'Second header ends with text');
 622                 });
 623             });
 624
 625             describe('wrapping', function() {
 626                 it('wraps DocumentNodeElement', function() {
 627                     var c = canvas.fromXML('<section><div></div></section>'),
 628                         div = c.doc().children()[0];
 629
 630                     var returned = div.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
 631                         parent = div.parent(),
 632                         parent2 = c.doc().children()[0];
 633
 634                     expect(returned.sameNode(parent)).to.be.true;
 635                     expect(returned.sameNode(parent2)).to.be.true;
 636                     expect(returned.getWlxmlTag()).to.equal('header');
 637                     expect(returned.getWlxmlClass()).to.equal('some.class');
 638                 });
 639                 it('wraps DocumentTextElement', function() {
 640                     var c = canvas.fromXML('<section>Alice</section>'),
 641                         text = c.doc().children()[0];
 642
 643                     var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
 644                         parent = text.parent(),
 645                         parent2 = c.doc().children()[0];
 646
 647                     expect(returned.sameNode(parent)).to.be.true;
 648                     expect(returned.sameNode(parent2)).to.be.true;
 649                     expect(returned.getWlxmlTag()).to.equal('header');
 650                     expect(returned.getWlxmlClass()).to.equal('some.class');
 651                 });
 652
 653                 describe('wrapping part of DocumentTextElement', function() {
 654                     [{start: 5, end: 12}, {start: 12, end: 5}].forEach(function(offsets) {
 655                         it('wraps in the middle ' + offsets.start + '/' + offsets.end, function() {
 656                             var c = canvas.fromXML('<section>Alice has a cat</section>'),
 657                                 text = c.doc().children()[0];
 658
 659                             var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: offsets.start, end: offsets.end}),
 660                                 children = c.doc().children();
 661
 662                             expect(children.length).to.equal(3);
 663
 664                             expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 665                             expect(children[0].getText()).to.equal('Alice');
 666
 667                             expect(children[1].sameNode(returned)).to.be.true;
 668                             expect(returned.getWlxmlTag()).to.equal('header');
 669                             expect(returned.getWlxmlClass()).to.equal('some.class');
 670                             expect(children[1].children().length).to.equal(1);
 671                             expect(children[1].children()[0].getText()).to.equal(' has a ');
 672
 673                             expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
 674                             expect(children[2].getText()).to.equal('cat');
 675                         });
 676                     });
 677
 678                     it('wraps whole text inside DocumentTextElement if offsets span entire content', function() {
 679                          var c = canvas.fromXML('<section>Alice has a cat</section>'),
 680                              text = c.doc().children()[0];
 681
 682                          var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: 0, end: 15}),
 683                              children = c.doc().children();
 684
 685                          expect(children.length).to.equal(1);
 686                          expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
 687                          expect(children[0].children()[0].getText()).to.equal('Alice has a cat');
 688                     });
 689                 });
 690
 691                 it('wraps text spanning multiple sibling DocumentTextNodes', function() {
 692                     var c = canvas.fromXML('<section>Alice has a <span>small</span> cat</section>'),
 693                         section = c.doc(),
 694                         wrapper = c.wrapText({
 695                             inside: section,
 696                             _with: {tag: 'span', klass: 'some.class'},
 697                             offsetStart: 6,
 698                             offsetEnd: 4,
 699                             textNodeIdx: [0,2]
 700                         });
 701
 702                     expect(section.children().length).to.equal(2);
 703                     expect(section.children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
 704                     expect(section.children()[0].getText()).to.equal('Alice ');
 705
 706                     var wrapper2 = section.children()[1];
 707                     expect(wrapper2.sameNode(wrapper)).to.be.true;
 708
 709                     var wrapperChildren = wrapper.children();
 710                     expect(wrapperChildren.length).to.equal(3);
 711                     expect(wrapperChildren[0].getText()).to.equal('has a ');
 712
 713                     expect(wrapperChildren[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
 714                     expect(wrapperChildren[1].children().length).to.equal(1);
 715                     expect(wrapperChildren[1].children()[0].getText()).to.equal('small');
 716
 717                     expect(wrapperChildren[2].getText()).to.equal(' cat');
 718                 });
 719
 720                 it('wraps multiple sibling Elements', function() {
 721                     var c = canvas.fromXML('<section>Alice<div>has</div><div>a cat</div></section>'),
 722                         section = c.doc(),
 723                         aliceText = section.children()[0],
 724                         firstDiv = section.children()[1],
 725                         lastDiv = section.children()[section.children().length -1];
 726
 727                     var returned = c.wrapElements({
 728                             element1: aliceText,
 729                             element2: lastDiv,
 730                             _with: {tag: 'header'}
 731                         });
 732
 733                     var sectionChildren = section.children(),
 734                         header = sectionChildren[0],
 735                         headerChildren = header.children();
 736
 737                     expect(sectionChildren).to.have.length(1);
 738                     expect(header.sameNode(returned)).to.equal(true, 'wrapper returned');
 739                     expect(headerChildren).to.have.length(3);
 740                     expect(headerChildren[0].sameNode(aliceText)).to.equal(true, 'first node wrapped');
 741                     expect(headerChildren[1].sameNode(firstDiv)).to.equal(true, 'second node wrapped');
 742                     expect(headerChildren[2].sameNode(lastDiv)).to.equal(true, 'third node wrapped');
 743                 });
 744                 it('wraps multiple sibling Elements - middle case', function() {
 745                     var c = canvas.fromXML('<section><div></div>div></div><div></div><div></div></section>'),
 746                         section = c.doc(),
 747                         div1 = section.children()[0],
 748                         div2 = section.children()[1],
 749                         div3 = section.children()[2],
 750                         div4 = section.children()[3];
 751
 752                     var returned = c.wrapElements({
 753                             element1: div2,
 754                             element2: div3,
 755                             _with: {tag: 'header'}
 756                         });
 757
 758                     var sectionChildren = section.children(),
 759                         header = sectionChildren[1],
 760                         headerChildren = header.children();
 761
 762                     expect(sectionChildren).to.have.length(3);
 763                     expect(headerChildren).to.have.length(2);
 764                     expect(headerChildren[0].sameNode(div2)).to.equal(true, 'first node wrapped');
 765                     expect(headerChildren[1].sameNode(div3)).to.equal(true, 'second node wrapped');
 766                 });
 767             });
 768
 769             describe('unwrapping DocumentTextElement from its parent DocumentNodeElement if it\'s its only child', function() {
 770                 it('unwraps text element from its parent and stays between its old parent siblings', function() {
 771                     var c = canvas.fromXML('<section><div>Alice</div><div>has</div><div>a cat</div></section>'),
 772                         section = c.doc(),
 773                         sectionChildren = section.children(),
 774                         divAlice = sectionChildren[0],
 775                         divHas = sectionChildren[1],
 776                         textHas = divHas.children()[0],
 777                         divCat = sectionChildren[2];
 778
 779                     var newTextContainer = textHas.unwrap(),
 780                         sectionChildren = section.children();
 781
 782                     expect(sectionChildren[0].sameNode(divAlice)).to.equal(true, 'divAlice ok');
 783                     expect(newTextContainer.sameNode(section)).to.equal(true, 'unwrap returns new text parent DocumentNodeElement');
 784                     expect(sectionChildren[1].getText()).to.equal('has');
 785                     expect(sectionChildren[2].sameNode(divCat)).to.equal(true, 'divCat ok');
 786
 787                 });
 788                 it('unwraps and join with its old parent adjacent text elements ', function() {
 789                     var c = canvas.fromXML('<section>Alice <span>has a</span> cat</section>'),
 790                     section = c.doc(),
 791                     text = section.children()[1].children()[0];
 792
 793                     var newTextContainer = text.unwrap();
 794
 795                     expect(section.children().length).to.equal(1, 'section has one child');
 796                     expect(section.children()[0].getText()).to.equal('Alice has a cat');
 797                     expect(newTextContainer.sameNode(c.doc())).to.equal(true, 'unwrap returns new text parent DocumentNodeElement');
 798                 });
 799
 800                 it('unwraps text element from its parent - first child case', function() {
 801                     var c = canvas.fromXML('<section><span class="uri">Some</span>text</section>'),
 802                         section = c.doc(),
 803                         span = section.children()[0];
 804
 805                     span.children()[0].unwrap();
 806
 807                     var sectionChildren = section.children();
 808
 809                     expect(sectionChildren).to.have.length(1);
 810                     expect(sectionChildren[0].getText()).to.equal('Sometext');
 811                 });
 812             });
 813         });
 814
 815         describe('Lists api', function() {
 816             describe('creating lists', function() {
 817                 it('allows creation of a list from existing sibling DocumentElements', function() {
 818                     var c = canvas.fromXML('\
 819                         <section>\
 820                             Alice\
 821                             <div>has</div>\
 822                             a\
 823                             <div>cat</div>\
 824                         </section>'),
 825                         section = c.doc(),
 826                         textHas = section.children()[1],
 827                         divA = section.children()[2]
 828
 829                     c.list.create({element1: textHas, element2: divA});
 830
 831                     expect(section.children().length).to.equal(3, 'section has three child elements');
 832
 833                     var child1 = section.children()[0],
 834                         list = section.children()[1],
 835                         child3 = section.children()[2];
 836
 837                     expect(child1.getText()).to.equal('Alice');
 838                     expect(list.is('list')).to.equal(true, 'second child is a list');
 839                     expect(list.children().length).to.equal(2, 'list contains two elements');
 840                     list.children().forEach(function(child) {
 841                         expect(child.getWlxmlClass()).to.equal('item', 'list childs have wlxml class of item');
 842                     });
 843                     expect(child3.children()[0].getText()).to.equal('cat');
 844                 });
 845
 846                 it('allows creating nested list from existing sibling list items', function() {
 847                     var c = canvas.fromXML('\
 848                         <section>\
 849                             <div class="list-items">\
 850                                 <div class="item">A</div>\
 851                                 <div class="item">B</div>\
 852                                 <div class="item">C</div>\
 853                                 <div class="item">D</div>\
 854                             </div>\
 855                         </section>'),
 856                         outerList = c.doc().children()[0],
 857                         itemB = outerList.children()[1],
 858                         itemC = outerList.children()[2];
 859
 860
 861                         c.list.create({element1: itemB, element2: itemC});
 862
 863                     var outerListItems = outerList.children(),
 864                         innerList = outerListItems[1].children()[0],
 865                         innerListItems = innerList.children();
 866
 867                     expect(outerListItems.length).to.equal(3, 'outer list has three items');
 868                     expect(outerListItems[0].children()[0].getText()).to.equal('A', 'first outer item ok');
 869                     expect(outerListItems[1].getWlxmlClass()).to.equal('item', 'inner list is wrapped by item element');
 870
 871                     expect(innerList.is('list')).to.equal(true, 'inner list created');
 872                     expect(innerListItems.length).to.equal(2, 'inner list has two items');
 873                     expect(innerListItems[0].children()[0].getText()).to.equal('B', 'first inner item ok');
 874                     expect(innerListItems[1].children()[0].getText()).to.equal('C', 'second inner item ok');
 875
 876                     expect(outerListItems[2].children()[0].getText()).to.equal('D', 'last outer item ok');
 877
 878                 });
 879
 880             });
 881
 882             describe('extracting list items', function() {
 883                 it('creates two lists with extracted items in the middle if extracting from the middle of the list', function() {
 884                     var c = canvas.fromXML('\
 885                         <section>\
 886                             <div class="list.items">\
 887                                 <div class="item">0</div>\
 888                                 <div class="item">1</div>\
 889                                 <div class="item">2</div>\
 890                                 <div class="item">3</div>\
 891                             </div>\
 892                         </section>'),
 893                         list = c.doc().children()[0],
 894                         item1 = list.children()[1],
 895                         item2 = list.children()[2];
 896
 897                     c.list.extractItems({element1: item1, element2: item2});
 898
 899                     var section = c.doc(),
 900                         list1 = section.children()[0],
 901                         oldItem1 = section.children()[1],
 902                         oldItem2 = section.children()[2],
 903                         list2 = section.children()[3];
 904
 905                     expect(section.children().length).to.equal(4, 'section contains four children');
 906
 907                     expect(list1.is('list')).to.equal(true, 'first section child is a list');
 908                     expect(list1.children().length).to.equal(1, 'first list has one child');
 909                     expect(list1.children()[0].children()[0].getText()).to.equal('0', 'first item of the first list is a first item of the original list');
 910
 911                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item got extracted');
 912                     expect(oldItem1.getWlxmlClass() === undefined).to.equal(true, 'first extracted element has no wlxml class');
 913
 914                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item got extracted');
 915                     expect(oldItem2.getWlxmlClass() === undefined).to.equal(true, 'second extracted element has no wlxml class');
 916
 917                     expect(list2.is('list')).to.equal(true, 'last section child is a list');
 918                     expect(list2.children().length).to.equal(1, 'second list has one child');
 919                     expect(list2.children()[0].children()[0].getText()).to.equal('3', 'first item of the second list is a last item of the original list');
 920                 });
 921
 922                 it('puts extracted items above the list if starting item is the first one', function() {
 923                     var c = canvas.fromXML('\
 924                         <section>\
 925                             <div class="list.items">\
 926                                 <div class="item">0</div>\
 927                                 <div class="item">1</div>\
 928                                 <div class="item">2</div>\
 929                             </div>\
 930                         </section>'),
 931                         list = c.doc().children()[0],
 932                         item1 = list.children()[0],
 933                         item2 = list.children()[1],
 934                         item3 = list.children()[2];
 935
 936                     c.list.extractItems({element1: item1, element2: item2});
 937
 938                     var section = c.doc(),
 939                         oldItem1 = section.children()[0],
 940                         oldItem2 = section.children()[1],
 941                         newList = section.children()[2];
 942
 943                     expect(section.children().length).to.equal(3, 'section has three children');
 944                     expect(oldItem1.children()[0].getText()).to.equal('0', 'first item extracted');
 945                     expect(oldItem2.children()[0].getText()).to.equal('1', 'second item extracted');
 946                     expect(newList.is('list')).to.equal(true, 'list lies below extracted item');
 947                     expect(newList.children().length).to.equal(1, 'list has now one child');
 948                 });
 949
 950                 it('puts extracted items below the list if ending item is the last one', function() {
 951                     var c = canvas.fromXML('\
 952                         <section>\
 953                             <div class="list.items">\
 954                                 <div class="item">0</div>\
 955                                 <div class="item">1</div>\
 956                                 <div class="item">2</div>\
 957                             </div>\
 958                         </section>'),
 959                         list = c.doc().children()[0],
 960                         item1 = list.children()[0],
 961                         item2 = list.children()[1],
 962                         item3 = list.children()[2];
 963
 964                     c.list.extractItems({element1: item2, element2: item3});
 965
 966                     var section = c.doc(),
 967                         oldItem1 = section.children()[1],
 968                         oldItem2 = section.children()[2],
 969                         newList = section.children()[0];
 970
 971                     expect(section.children().length).to.equal(3, 'section has three children');
 972                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item extracted');
 973                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item extracted');
 974                     expect(newList.is('list')).to.equal(true, 'list lies above extracted item');
 975                     expect(newList.children().length).to.equal(1, 'list has now one child');
 976                 });
 977
 978                 it('removes list if all its items are extracted', function() {
 979                     var c = canvas.fromXML('\
 980                         <section>\
 981                             <div class="list.items">\
 982                                 <div class="item">some item</div>\
 983                                 <div class="item">some item 2</div>\
 984                             </div>\
 985                         </section>'),
 986                         list = c.doc().children()[0],
 987                         item1 = list.children()[0],
 988                         item2 = list.children()[1];
 989
 990                     c.list.extractItems({element1: item1, element2: item2});
 991
 992                     var section = c.doc(),
 993                         list1 = section.children()[0],
 994                         oldItem1 = section.children()[0],
 995                         oldItem2 = section.children()[1];
 996
 997                     expect(section.children().length).to.equal(2, 'section contains two children');
 998                     expect(oldItem1.children()[0].getText()).to.equal('some item');
 999                     expect(oldItem2.children()[0].getText()).to.equal('some item 2');
1000                 });
1001
1002                 it('creates two lists with extracted items in the middle if extracting from the middle of the list - nested case' , function() {
1003                     var c = canvas.fromXML('\
1004                         <section>\
1005                             <div class="list.items">\
1006                                 <div class="item">0</div>\
1007                                 <div class="item">\
1008                                     <div class="list.items">\
1009                                         <div class="item">1.1</div>\
1010                                         <div class="item">1.2</div>\
1011                                         <div class="item">1.3</div>\
1012                                     </div>\
1013                                 </div>\
1014                                 <div class="item">2</div>\
1015                             </div>\
1016                         </section>'),
1017                         list = c.doc().children()[0],
1018                         nestedList = list.children()[1].children()[0],
1019                         nestedListItem = nestedList.children()[1];
1020
1021                     c.list.extractItems({element1: nestedListItem, element2: nestedListItem});
1022
1023                     var section = c.doc(),
1024                         list = section.children()[0],
1025                         item1 = list.children()[0],
1026                         item2 = list.children()[1], //
1027                         item3 = list.children()[2],
1028                         item4 = list.children()[3], //
1029                         item5 = list.children()[4],
1030                         nestedList1 = item2.children()[0],
1031                         nestedList2 = item4.children()[0];
1032
1033                     expect(list.children().length).to.equal(5, 'top list has five items');
1034
1035                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
1036
1037                     expect(item2.getWlxmlClass()).to.equal('item', 'first nested list is still wrapped in item element');
1038                     expect(nestedList1.children().length).to.equal(1, 'first nested list is left with one child');
1039                     expect(nestedList1.children()[0].children()[0].getText()).to.equal('1.1', 'first nested list item left alone');
1040
1041                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
1042
1043                     expect(item4.getWlxmlClass()).to.equal('item', 'second nested list is still wrapped in item element');
1044                     expect(nestedList2.children().length).to.equal(1, 'second nested list is left with one child');
1045                     expect(nestedList2.children()[0].children()[0].getText()).to.equal('1.3', 'second nested list item left alone');
1046
1047                     expect(item5.children()[0].getText()).to.equal('2', 'last item ok');
1048                 });
1049
1050                 it('puts extracted items below the list if ending item is the last one - nested case' , function() {
1051                     var c = canvas.fromXML('\
1052                         <section>\
1053                             <div class="list.items">\
1054                                 <div class="item">0</div>\
1055                                 <div class="item">\
1056                                     <div class="list.items">\
1057                                         <div class="item">1.1</div>\
1058                                         <div class="item">1.2</div>\
1059                                         <div class="item">1.3</div>\
1060                                     </div>\
1061                                 </div>\
1062                                 <div class="item">2</div>\
1063                             </div>\
1064                         </section>'),
1065                         list = c.doc().children()[0],
1066                         nestedList = list.children()[1].children()[0],
1067                         nestedListItem1 = nestedList.children()[1],
1068                         nestedListItem2 = nestedList.children()[2];
1069
1070                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
1071
1072                     var section = c.doc(),
1073                         list = section.children()[0],
1074                         item1 = list.children()[0],
1075                         item2 = list.children()[1],
1076                         item3 = list.children()[2],
1077                         item4 = list.children()[3],
1078                         item5 = list.children()[4];
1079                     nestedList = item2.children()[0];
1080
1081                     expect(list.children().length).to.equal(5, 'top list has five items');
1082                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
1083                     expect(item2.getWlxmlClass()).to.equal('item', 'nested list is still wrapped in item element');
1084                     expect(nestedList.children().length).to.equal(1, 'nested list is left with one child');
1085                     expect(nestedList.children()[0].children()[0].getText()).to.equal('1.1', 'nested list item left alone');
1086                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
1087                     expect(item4.children()[0].getText()).to.equal('1.3', 'fourth item ok');
1088                     expect(item5.children()[0].getText()).to.equal('2', 'fifth item ok');
1089                 });
1090
1091                 it('puts extracted items above the list if starting item is the first one - nested case' , function() {
1092                     var c = canvas.fromXML('\
1093                         <section>\
1094                             <div class="list.items">\
1095                                 <div class="item">0</div>\
1096                                 <div class="item">\
1097                                     <div class="list.items">\
1098                                         <div class="item">1.1</div>\
1099                                         <div class="item">1.2</div>\
1100                                         <div class="item">1.3</div>\
1101                                     </div>\
1102                                 </div>\
1103                                 <div class="item">2</div>\
1104                             </div>\
1105                         </section>'),
1106                         list = c.doc().children()[0],
1107                         nestedList = list.children()[1].children()[0],
1108                         nestedListItem1 = nestedList.children()[0],
1109                         nestedListItem2 = nestedList.children()[1];
1110
1111                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
1112
1113                     var section = c.doc(),
1114                         list = section.children()[0],
1115                         item1 = list.children()[0],
1116                         item2 = list.children()[1],
1117                         item3 = list.children()[2],
1118                         item4 = list.children()[3],
1119                         item5 = list.children()[4];
1120                     nestedList = item4.children()[0];
1121
1122                     expect(list.children().length).to.equal(5, 'top list has five items');
1123                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
1124                     expect(item2.children()[0].getText()).to.equal('1.1', 'second item ok');
1125                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
1126
1127                     expect(item4.getWlxmlClass()).to.equal('item', 'nested list is still wrapped in item element');
1128                     expect(nestedList.children().length).to.equal(1, 'nested list is left with one child');
1129                     expect(nestedList.children()[0].children()[0].getText()).to.equal('1.3', 'nested list item left alone');
1130                     expect(item5.children()[0].getText()).to.equal('2', 'fifth item ok');
1131                 });
1132
1133                 it('removes list if all its items are extracted - nested case', function() {
1134                     var c = canvas.fromXML('\
1135                         <section>\
1136                             <div class="list.items">\
1137                                 <div class="item">0</div>\
1138                                 <div class="item">\
1139                                     <div class="list.items">\
1140                                         <div class="item">1.1</div>\
1141                                         <div class="item">1.2</div>\
1142                                     </div>\
1143                                 </div>\
1144                                 <div class="item">2</div>\
1145                             </div>\
1146                         </section>'),
1147                         list = c.doc().children()[0],
1148                         nestedList = list.children()[1].children()[0],
1149                         nestedListItem1 = nestedList.children()[0],
1150                         nestedListItem2 = nestedList.children()[1];
1151
1152                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
1153
1154                     var section = c.doc(),
1155                         list = section.children()[0],
1156                         item1 = list.children()[0],
1157                         item2 = list.children()[1],
1158                         item3 = list.children()[2],
1159                         item4 = list.children()[3];
1160
1161                     expect(list.children().length).to.equal(4, 'top list has four items');
1162                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
1163                     expect(item2.children()[0].getText()).to.equal('1.1', 'second item ok');
1164                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
1165                     expect(item4.children()[0].getText()).to.equal('2', 'fourth item ok');
1166                 });
1167
1168                 it('extracts items out of outer most list when merge flag is set to false', function() {
1169                     var c = canvas.fromXML('\
1170                         <section>\
1171                             <div class="list.items">\
1172                                 <div class="item">0</div>\
1173                                 <div class="item">\
1174                                     <div class="list.items">\
1175                                         <div class="item">1.1</div>\
1176                                         <div class="item">1.2</div>\
1177                                     </div>\
1178                                 </div>\
1179                                 <div class="item">2</div>\
1180                             </div>\
1181                         </section>'),
1182                         section = c.doc(),
1183                         list = section.children()[0],
1184                         nestedList = list.children()[1].children()[0],
1185                         nestedListItem = nestedList.children()[0];
1186
1187                     var test = c.list.extractItems({element1: nestedListItem, element2: nestedListItem, merge: false});
1188
1189                     expect(test).to.equal(true, 'extraction status ok');
1190
1191                     var sectionChildren = section.children(),
1192                         extractedItem = sectionChildren[1];
1193
1194                     expect(sectionChildren.length).to.equal(3, 'section has three children');
1195                     expect(sectionChildren[0].is('list')).to.equal(true, 'first child is a list');
1196
1197                     expect(extractedItem.getWlxmlTag()).to.equal('div', 'extracted item is a wlxml div');
1198                     expect(extractedItem.getWlxmlClass()).to.equal(undefined, 'extracted item has no wlxml class');
1199                     expect(extractedItem.children()[0].getText()).to.equal('1.1', 'extracted item ok');
1200                     expect(sectionChildren[2].is('list')).to.equal(true, 'second child is a list');
1201                 });
1202             });
1203         });
1204
1205     });
1206
1207     describe('Cursor', function() {
1208
1209         var getSelection;
1210
1211         var findTextNode = function(inside, text) {
1212             var nodes = inside.find(':not(iframe)').addBack().contents().filter(function() {
1213                 return this.nodeType === Node.TEXT_NODE && this.data === text;
1214             });
1215             if(nodes.length)
1216                 return nodes[0];
1217             return null;
1218         }
1219
1220         beforeEach(function() {
1221             getSelection = sinon.stub(window, 'getSelection');
1222         });
1223
1224         afterEach(function() {
1225             getSelection.restore();
1226         });
1227
1228         it('returns position when browser selection collapsed', function() {
1229             var c = canvas.fromXML('<section>Alice has a cat</section>'),
1230                 dom = c.doc().dom(),
1231                 text = findTextNode(dom, 'Alice has a cat');
1232
1233             expect(text.nodeType).to.equal(Node.TEXT_NODE, 'correct node selected');
1234             expect($(text).text()).to.equal('Alice has a cat');
1235
1236             getSelection.returns({
1237                 anchorNode: text,
1238                 focusNode: text,
1239                 anchorOffset: 5,
1240                 focusOffset: 5,
1241                 isCollapsed: true
1242             });
1243             var cursor = c.getCursor(),
1244                 position = cursor.getPosition();
1245
1246             expect(cursor.isSelecting()).to.equal(false, 'cursor is not selecting anything');
1247             expect(position.element.getText()).to.equal('Alice has a cat');
1248             expect(position.offset).to.equal(5);
1249             expect(position.offsetAtEnd).to.equal(false, 'offset is not at end');
1250
1251             getSelection.returns({
1252                 anchorNode: text,
1253                 focusNode: text,
1254                 anchorOffset: 15,
1255                 focusOffset: 15,
1256                 isCollapsed: true
1257             });
1258
1259             expect(cursor.getPosition().offsetAtEnd).to.equal(true, 'offset at end');
1260         });
1261
1262         it('returns boundries of selection when browser selection not collapsed', function() {
1263             var c = canvas.fromXML('<section>Alice <span>has</span> a <span>big</span> cat</section>'),
1264                 dom = c.doc().dom(),
1265                 text = {
1266                     alice: findTextNode(dom, 'Alice '),
1267                     has: findTextNode(dom, 'has'),
1268                     cat: findTextNode(dom, ' cat')
1269                 },
1270                 cursor = c.getCursor(),
1271                 aliceElement = c.getDocumentElement(text.alice),
1272                 catElement = c.getDocumentElement(text.cat);
1273
1274
1275                 [
1276                     {focus: text.alice, focusOffset: 1, anchor: text.cat,   anchorOffset: 2, selectionAnchor: catElement},
1277                     {focus: text.cat,   focusOffset: 2, anchor: text.alice, anchorOffset: 1, selectionAnchor: aliceElement}
1278                 ].forEach(function(s, idx) {
1279                     getSelection.returns({isColapsed: false, anchorNode: s.anchor, anchorOffset: s.anchorOffset, focusNode: s.focus, focusOffset: s.focusOffset});
1280
1281                     var selectionStart = cursor.getSelectionStart(),
1282                         selectionEnd = cursor.getSelectionEnd(),
1283                         selectionAnchor = cursor.getSelectionAnchor();
1284
1285                     expect(cursor.isSelecting()).to.equal(true, 'cursor is selecting');
1286                     expect(selectionStart.element.sameNode(aliceElement)).to.equal(true, '"Alice" is the start of the selection ' + idx);
1287                     expect(selectionStart.offset).to.equal(1, '"Alice" offset ok' + idx);
1288                     expect(selectionEnd.element.sameNode(catElement)).to.equal(true, '"Cat" is the start of the selection ' + idx);
1289                     expect(selectionEnd.offset).to.equal(2, '"Cat" offset ok' + idx);
1290                     expect(selectionAnchor.element.sameNode(s.selectionAnchor)).to.equal(true, 'anchor ok');
1291                     expect(selectionAnchor.offset).to.equal(s.anchorOffset, 'anchor offset ok');
1292                 });
1293         });
1294
1295         it('recognizes when browser selection boundries lies in sibling DocumentTextElements', function() {
1296             var c = canvas.fromXML('<section>Alice <span>has</span> a <span>big</span> cat</section>'),
1297                 dom = c.doc().dom(),
1298                 text = {
1299                     alice: findTextNode(dom, 'Alice '),
1300                     has: findTextNode(dom, 'has'),
1301                     a: findTextNode(dom, ' a '),
1302                     big: findTextNode(dom, 'big'),
1303                     cat: findTextNode(dom, ' cat'),
1304                 },
1305                 cursor = c.getCursor();
1306
1307             expect($(text.alice).text()).to.equal('Alice ');
1308             expect($(text.has).text()).to.equal('has');
1309             expect($(text.a).text()).to.equal(' a ');
1310             expect($(text.big).text()).to.equal('big');
1311             expect($(text.cat).text()).to.equal(' cat');
1312
1313             getSelection.returns({anchorNode: text.alice, focusNode: text.a});
1314             expect(cursor.isSelectingSiblings()).to.equal(true, '"Alice" and "a" are children');
1315
1316             getSelection.returns({anchorNode: text.alice, focusNode: text.cat});
1317             expect(cursor.isSelectingSiblings()).to.equal(true, '"Alice" and "cat" are children');
1318
1319             getSelection.returns({anchorNode: text.alice, focusNode: text.has});
1320             expect(cursor.isSelectingSiblings()).to.equal(false, '"Alice" and "has" are not children');
1321
1322             getSelection.returns({anchorNode: text.has, focusNode: text.big});
1323             expect(cursor.isSelectingSiblings()).to.equal(false, '"has" and "big" are not children');
1324
1325         })
1326     });
1327
1328     describe('Serializing document to WLXML', function() {
1329         it('keeps document intact when no changes have been made', function() {
1330             var xmlIn = '<section>Alice<div>has</div>a <span class="uri" meta-uri="http://cat.com">cat</span>!</section>',
1331                 c = canvas.fromXML(xmlIn),
1332                 xmlOut = c.toXML();
1333
1334             var parser = new DOMParser(),
1335                 input = parser.parseFromString(xmlIn, "application/xml").childNodes[0],
1336                 output = parser.parseFromString(xmlOut, "application/xml").childNodes[0];
1337
1338             expect(input.isEqualNode(output)).to.be.true;
1339         });
1340
1341         it('keeps arbitrary node attributes intact', function() {
1342             var xmlIn = '<section a="1" xmlns:dcterms="http://purl.org/dc/terms/"></section>',
1343                 $xmlOut = $(canvas.fromXML(xmlIn).toXML());
1344
1345             expect($xmlOut.attr('a')).to.equal('1');
1346             expect($xmlOut.attr('xmlns:dcterms')).to.equal('http://purl.org/dc/terms/');
1347         });
1348
1349         it('doesn\' serialize meta attribute if its empty', function() {
1350             var c;
1351
1352             c = canvas.fromXML('<section class="uri" meta-uri="some.uri"></section>');
1353             c.doc().setWlxmlMetaAttr('uri', '');
1354             expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'overriding attribute with zero length string');
1355
1356             c = canvas.fromXML('<section class="uri"></section>');
1357             c.doc().setWlxmlMetaAttr('uri', '');
1358             expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'setting attribute to zero length string');
1359         });
1360
1361         describe('output xml', function() {
1362             it('keeps entities intact', function() {
1363                 var xmlIn = '<section>&lt; &gt;</section>',
1364                     c = canvas.fromXML(xmlIn),
1365                     xmlOut = c.toXML();
1366                 expect(xmlOut).to.equal(xmlIn);
1367             });
1368             it('keeps entities intact when they form html/xml', function() {
1369                 var xmlIn = '<section>&lt;abc&gt;</section>',
1370                     c = canvas.fromXML(xmlIn),
1371                     xmlOut = c.toXML();
1372                 expect(xmlOut).to.equal(xmlIn);
1373             });
1374         });
1375
1376         describe('formatting output xml', function() {
1377             /*it('keeps white spaces at the edges of input xml', function() {
1378                 var xmlIn = '  <section></section>  ',
1379                 c = canvas.fromXML(xmlIn),
1380                 xmlOut = c.toXML();
1381
1382                 expect(xmlOut.substr(4)).to.equal('   <', 'start');
1383                 expect(xmlOut.substr(-2)).to.equal('>  ', 'end');
1384             });*/
1385             it('keeps white space between XML nodes', function() {
1386                 var xmlIn = '<section>\n\n\n<div></div>\n\n\n<div></div>\n\n\n</section>',
1387                 c = canvas.fromXML(xmlIn),
1388                 xmlOut = c.toXML();
1389
1390                 var partsIn = xmlIn.split('\n\n\n'),
1391                     partsOut = xmlOut.split('\n\n\n');
1392
1393                 expect(partsIn).to.deep.equal(partsOut);
1394             });
1395
1396             it('keeps white space between XML nodes - inline case', function() {
1397                 var xmlIn = '<section>\n\n\n<span></span>\n\n\n<span></span>\n\n\n</section>',
1398                 c = canvas.fromXML(xmlIn);
1399
1400                 var xmlOut = c.toXML();
1401
1402                 var partsIn = xmlIn.split('\n\n\n'),
1403                     partsOut = xmlOut.split('\n\n\n');
1404
1405                 expect(partsIn).to.deep.equal(partsOut);
1406             });
1407
1408             it('keeps white space at the beginning of text', function() {
1409                 var xmlIn = '<section>    abc<div>some div</div>    abc</section>',
1410                     c = canvas.fromXML(xmlIn),
1411                     xmlOut = c.toXML();
1412
1413                 expect(xmlOut).to.equal(xmlIn);
1414             });
1415
1416             it('nests new children block elements', function() {
1417                 var c = canvas.fromXML('<section></section>');
1418
1419                 c.doc().append({tag: 'header'});
1420
1421                 var xmlOut = c.toXML();
1422                 expect(xmlOut.split('\n  ')[0]).to.equal('<section>', 'nesting start ok');
1423                 expect(xmlOut.split('\n').slice(-1)[0]).to.equal('</section>', 'nesting end ok');
1424
1425             });
1426
1427             it('doesn\'t nest new children inline elements', function() {
1428                 var c = canvas.fromXML('<section></section>');
1429
1430                 c.doc().append({tag: 'span'});
1431
1432                 var xmlOut = c.toXML();
1433                 expect(xmlOut).to.equal('<section><span></span></section>');
1434             });
1435
1436             it('keeps original white space at the end of text', function() {
1437
1438                 var xmlIn = '<header>    Some text ended with white space \
1439                 \
1440                 <span class="uri">Some text</span> some text\
1441             \
1442             </header>',
1443                     c = canvas.fromXML(xmlIn);
1444
1445             var xmlOut = c.toXML();
1446             console.log(xmlOut);
1447             expect(xmlOut).to.equal(xmlIn);
1448             });
1449
1450             it('keeps white space around text node', function() {
1451                 var xmlIn = '<section>\
1452                 <header>header1</header>\
1453                 Some text surrounded by white space\
1454                 <header>header2</header>\
1455             </section>',
1456                     c = canvas.fromXML(xmlIn);
1457
1458                 var xmlOut = c.toXML();
1459                 expect(xmlOut).to.equal(xmlIn);
1460             });
1461
1462             it('keeps white space around text node - last node case', function() {
1463                 var xmlIn = '<section>\
1464                 <header>header</header>\
1465                     \
1466                 Some text surrounded by white space\
1467                     \
1468             </section>',
1469                     c = canvas.fromXML(xmlIn);
1470
1471                 var xmlOut = c.toXML();
1472                 expect(xmlOut).to.equal(xmlIn);
1473             });
1474
1475             it('keeps white space after detaching text element', function() {
1476                 var xmlIn = '<section><header>header</header>\n\
1477                     \n\
1478                 text1\n\
1479                     \n\
1480             </section>',
1481                     expectedXmlOut = '<section><header>header</header>\n\
1482                     \n\
1483                 \n\
1484                     \n\
1485             </section>',
1486                     c = canvas.fromXML(xmlIn),
1487                     children = c.doc().children(),
1488                     text = children[children.length-1];
1489
1490                 expect(text.getText()).to.equal('text1');
1491
1492                 text.detach();
1493
1494                 var xmlOut = c.toXML();
1495                 expect(xmlOut).to.equal(expectedXmlOut);
1496             });
1497
1498         })
1499     })
1500 });
1501
1502
1503 });