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