b327bce87d2eaf26720831203595354d563420ad
[fnpeditor.git] / modules / documentCanvas / canvas / canvas.test3.js
1 define([
2 'libs/chai',
3 'libs/sinon',
4 'modules/documentCanvas/canvas/canvas',
5 'modules/documentCanvas/canvas/documentElement',
6 'modules/documentCanvas/canvas/utils'
7 ], function(chai, sinon, canvas, documentElement, utils) {
8     
9 'use strict';
10
11 var expect = chai.expect;
12
13
14 describe('Canvas', function() {
15
16     describe('Internal HTML representation of a DocumentNodeElement', function() {
17         it('is always a div tag', function() {
18             ['section', 'header', 'span', 'aside', 'figure'].forEach(function(tagName) {
19                 var dom = canvas.fromXML('<' + tagName + '></' + tagName + '>').doc().dom();
20                 expect(dom.prop('tagName')).to.equal('DIV', tagName + ' is represented as div');
21             });
22         });
23         it('has wlxml tag put into wlxml-tag attribute of its internal container', function() {
24             var dom = canvas.fromXML('<section></section>').doc().dom();
25             expect(dom.children('[document-element-content]').attr('wlxml-tag')).to.equal('section');
26         });
27         it('has wlxml class put into wlxml-class attribute of its internal containr, dots replaced with dashes', function() {
28             var dom = canvas.fromXML('<section class="some.class"></section>').doc().dom();
29             expect(dom.children('[document-element-content]').attr('wlxml-class')).to.equal('some-class');
30         });
31     });
32
33     describe('Internal HTML representation of a DocumentTextElement', function() {
34         it('is text node wrapped in a div with document-text-element attribute set', function() {
35             var dom = canvas.fromXML('<section>Alice</section>').doc().children()[0].dom();
36             expect(dom.prop('tagName')).to.equal('DIV');
37             expect(dom.attr('document-text-element')).to.equal('');
38             expect(dom.contents().length).to.equal(1);
39             expect(dom.contents()[0].nodeType).to.equal(Node.TEXT_NODE);
40             expect($(dom.contents()[0]).text()).to.equal('Alice');
41         });
42     });
43
44     describe('basic properties', function() {
45         it('renders empty document when canvas created from empty XML', function() {
46             var c = canvas.fromXML('');
47             expect(c.doc()).to.equal(null);
48         });
49
50         it('gives access to its document root node', function() {
51             var c = canvas.fromXML('<section></section>');
52             expect(c.doc().getWlxmlTag()).to.equal('section');
53         });
54
55         describe('root element', function() {
56             it('has no parent', function() {
57                 var c = canvas.fromXML('<section></section>');
58                 expect(c.doc().parent()).to.be.null;
59             });
60         });
61
62         describe('DocumentTextElement', function() {
63             it('can have its content set', function() {
64                 var c = canvas.fromXML('<section>Alice</section>'),
65                     root = c.doc(),
66                     text = root.children()[0];
67                 
68                 text.setText('a cat');
69                 expect(root.children()[0].getText()).to.equal('a cat');
70             });
71         });
72
73         describe('DocumentNodeElement', function() {
74             it('knows index of its child', function() {
75                 var c = canvas.fromXML('<section><div></div><header></header><span></span></section>'),
76                     root = c.doc(),
77                     child = root.children()[1];
78                 expect(root.childIndex(child)).to.equal(1);
79             });
80
81             it('knows WLXML tag it renders', function(){
82                 var c = canvas.fromXML('<section></section>'),
83                     section = c.doc();
84                 expect(section.getWlxmlTag()).to.equal('section', 'initial tag is section');
85                 section.setWlxmlTag('header');
86                 expect(section.getWlxmlTag()).to.equal('header', 'tag is changed to header');
87             });
88
89             it('knows WLXML class of a WLXML tag it renders', function(){
90                 var c = canvas.fromXML('<section class="some.class.A"></section>'),
91                     section = c.doc();
92                 expect(section.getWlxmlClass()).to.equal('some.class.A');
93                 section.setWlxmlClass('some.class.B');
94                 expect(section.getWlxmlClass()).to.equal('some.class.B');
95                 section.setWlxmlClass(null);
96                 expect(section.getWlxmlClass()).to.be.undefined;
97             });
98
99
100
101             describe('element has meta attributes', function() {
102                 it('can change its meta attributes', function() {
103                     var c = canvas.fromXML('<section><span class="uri" meta-uri="someuri"></span></section>'),
104                     span = c.doc().children()[0];
105                     
106                     expect(span.getWlxmlMetaAttr('uri')).to.equal('someuri');
107                     span.setWlxmlMetaAttr('uri', 'otheruri');
108                     expect(span.getWlxmlMetaAttr('uri')).to.equal('otheruri');
109                 });
110
111                 it('changes its meta attributes with class change', function() {
112                     var c = canvas.fromXML('<section><span class="uri" meta-uri="someuri"></span></section>'),
113                     span = c.doc().children()[0];
114                     
115                     expect(span.getWlxmlMetaAttr('uri')).to.equal('someuri');
116                     span.setWlxmlClass('author');
117                     expect(span.getWlxmlMetaAttr('uri')).to.be.undefined;
118                 });
119
120                 it('keeps meta attribute value on class change if a new class has this attribute', function() {
121                     var c = canvas.fromXML('<section><span class="uri" meta-uri="someuri"></span></section>'),
122                     span = c.doc().children()[0];
123                     span.setWlxmlClass('uri.some.subclass');
124                     expect(span.getWlxmlMetaAttr('uri')).to.equal('someuri');
125                 });
126             });
127         });
128
129         it('returns DocumentNodeElement instance from HTMLElement', function() {
130             var c = canvas.fromXML('<section></section>'),
131                 htmlElement = c.doc().dom().get(0),
132                 element = c.getDocumentElement(htmlElement);
133             expect(element).to.be.instanceOf(documentElement.DocumentNodeElement);
134             expect(element.sameNode(c.doc()));
135         });
136         
137         it('returns DocumentTextElement instance from Text Node', function() {
138             var c = canvas.fromXML('<section>Alice</section>'),
139                 aliceElement = c.doc().children()[0],
140                 textNode = aliceElement.dom().contents()[0],
141                 element = c.getDocumentElement(textNode);
142
143             expect(textNode.nodeType).to.equal(Node.TEXT_NODE, 'text node selected');
144             expect($(textNode).text()).to.equal('Alice');
145
146             expect(element).to.be.instanceOf(documentElement.DocumentTextElement);
147             expect(element.sameNode(c.doc().children()[0]));
148         });
149     });
150
151
152
153     describe('document representation api', function() {
154         describe('document root element', function() {
155             var c = canvas.fromXML('<section></section>');
156             it('exists', function() {
157                 expect(c.doc()).to.be.instanceOf(documentElement.DocumentElement);
158             });
159             it('is of type DocumentNodeElement', function() {
160                 expect(c.doc()).to.be.instanceOf(documentElement.DocumentNodeElement);
161             });
162         });
163
164         describe('DocumentElements comparison', function() {
165             it('reports dwo DocumentElements to be the same when they represent the same wlxml document element', function() {
166                 var c = canvas.fromXML('<section><div></div><div></div></section>'),
167                     first_div1 = c.doc().children()[0],
168                     first_div2 = c.doc().children()[0],
169                     second_div = c.doc().children()[1];
170                 expect(first_div1.sameNode(first_div1)).to.be.true;
171                 expect(first_div1.sameNode(first_div2)).to.be.true;
172                 expect(first_div1.sameNode(second_div)).to.be.false;
173             });
174         });
175
176         describe('traversing', function() {
177             it('reports element nodes', function() {
178                 var c = canvas.fromXML('<section><div></div></section>'),
179                     children = c.doc().children();
180                 expect(children.length).to.equal(1);
181                 expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
182
183                 c = canvas.fromXML('<section><div></div><div></div></section>'),
184                     children = c.doc().children();
185                 expect(children.length).to.equal(2);
186                 expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
187                 expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
188             });
189             
190             it('reports text nodes', function() {
191                 var c = canvas.fromXML('<section>Alice</section>'),
192                     children = c.doc().children();
193                 expect(children.length).to.equal(1);
194                 expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
195             });
196
197             describe('accessing parents', function() {
198                 it('returns DocumentNodeElement representing parent in wlxml document as DocumentNodeElement parent', function() {
199                     var c = canvas.fromXML('<section><div></div></section>'),
200                         div = c.doc().children()[0];
201                     expect(div.parent().sameNode(c.doc())).to.be.true;
202                 });
203                 it('returns DocumentNodeElement representing parent in wlxml document as DocumentTextElement parent', function() {
204                     var c = canvas.fromXML('<section>Alice</section>'),
205                         text = c.doc().children()[0];
206                     expect(text.parent().sameNode(c.doc())).to.be.true;
207                 });
208             });
209
210             describe('accessing sibling parents of two elements', function() {
211                 it('returns elements themself if they have direct common parent', function() {
212                     var c = canvas.fromXML('<section>\
213                         <div>\
214                             <div>A</div>\
215                             <div>B</div>\
216                         </div>\
217                     </section>'),
218                         section = c.doc(),
219                         wrappingDiv = c.doc().children()[0],
220                         divA = wrappingDiv.children()[0],
221                         divB = wrappingDiv.children()[1];
222
223                     var siblingParents = c.getSiblingParents({element1: divA, element2: divB});
224
225                     expect(siblingParents.element1.sameNode(divA)).to.equal(true, 'divA');
226                     expect(siblingParents.element2.sameNode(divB)).to.equal(true, 'divB');
227                 });
228
229                 it('returns sibling parents - example 1', function() {
230                     var c = canvas.fromXML('<section>Alice <span>has a cat</span></section>'),
231                         section = c.doc(),
232                         aliceText = section.children()[0],
233                         span = section.children()[1],
234                         spanText = span.children()[0];
235
236                     var siblingParents = c.getSiblingParents({element1: aliceText, element2: spanText});
237
238                     expect(siblingParents.element1.sameNode(aliceText)).to.equal(true, 'aliceText');
239                     expect(siblingParents.element2.sameNode(span)).to.equal(true, 'span');
240                 });
241             })
242
243             describe('free text handling', function() {
244                     it('sees free text', function() {
245                         var c = canvas.fromXML('<section>Alice <span>has</span> a cat</section>'),
246                             children = c.doc().children();
247                         expect(children.length).to.equal(3);
248                         expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
249                         expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
250                         expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
251                     });
252             });
253             
254             describe('white characters handling', function() {
255                 it('says empty element node has no children', function() {
256                     var c = canvas.fromXML('<section></section>');
257                     expect(c.doc().children().length).to.equal(0);
258                 });
259                 it('says element node with one space has one DocumentTextElement', function() {
260                     var c = canvas.fromXML('<section> </section>');
261                     expect(c.doc().children().length).to.equal(1);
262                     expect(c.doc().children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
263                     expect(c.doc().children()[0].getText()).to.equal(' ');
264                 });
265                 it('ignores white space surrounding block elements', function() {
266                     var c = canvas.fromXML('<section> <div></div> </section>');
267                     var children = c.doc().children();
268                     expect(children.length).to.equal(1);
269                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
270                 });
271                 it('ignores white space between block elements', function() {
272                     var c = canvas.fromXML('<section><div></div> <div></div></section>');
273                     var children = c.doc().children();
274                     expect(children.length === 2);
275                     [0,1].forEach(function(idx) {
276                         expect(children[idx]).to.be.instanceOf(documentElement.DocumentNodeElement);
277                     });
278                 });
279
280                 it('trims white space from the beginning and the end of the block elements', function() {
281                     var c = canvas.fromXML('<section> Alice <span>has</span> a cat </section>');
282                     expect(c.doc().children()[0].getText()).to.equal('Alice ');
283                     expect(c.doc().children()[2].getText()).to.equal(' a cat');
284                 });
285
286                 it('normalizes string of white characters to one space at the inline element boundries', function() {
287                     var c = canvas.fromXML('<span>   Alice has a cat   </span>');
288                     expect(c.doc().children()[0].getText()).to.equal(' Alice has a cat ');
289                 });
290
291                 it('normalizes string of white characters to one space before inline element', function() {
292                     var c = canvas.fromXML('<div>Alice has  <span>a cat</span></div>');
293                     expect(c.doc().children()[0].getText()).to.equal('Alice has ');
294                 });
295                 
296                 it('normalizes string of white characters to one space after inline element', function() {
297                     var c = canvas.fromXML('<div>Alice has <span>a</span>  cat</div>');
298                     expect(c.doc().children()[2].getText()).to.equal(' cat');
299                 });
300             });
301
302             describe('getting vertically first text element', function() {
303                 it('returns the first child if it\'s text element, ignores metadata', function() {
304                     var c = canvas.fromXML('<section><metadata><dc:author>author</dc:author></metadata>Alice<div>has</div>a cat</section>'),
305                         first = c.doc().getVerticallyFirstTextElement();
306
307                     expect(first.sameNode(c.doc().children()[1])).to.be.true;
308                 });
309
310                 it('looks recursively inside node elements if they precede text element', function() {
311                     var c = canvas.fromXML('\
312                             <section>\
313                                 <div>\
314                                     <div>\
315                                         Alice\
316                                     </div>\
317                                 </div>\
318                                 Some text\
319                             </section>'),
320                         textAlice = c.doc().children()[0].children()[0].children()[0],
321                         first = c.doc().getVerticallyFirstTextElement();
322
323                     expect(textAlice).to.be.instanceOf(documentElement.DocumentTextElement);
324                     expect(first.sameNode(textAlice)).to.be.true;
325                 });
326             });
327         });
328
329         describe('manipulation api', function() {
330
331             describe('Basic Element inserting', function() {
332                 it('can put new NodeElement at the end', function() {
333                     var c = canvas.fromXML('<section></section>'),
334                         appended = c.doc().append({tag: 'header', klass: 'some.class'}),
335                         children = c.doc().children();
336
337                     expect(children.length).to.equal(1);
338                     expect(children[0].sameNode(appended)).to.be.true;
339                 });
340
341                 it('can put new TextElement at the end', function() {
342                     var c = canvas.fromXML('<section></section>'),
343                         appended = c.doc().append({text: 'Alice'}),
344                         children = c.doc().children();
345
346                     expect(children.length).to.equal(1);
347                     expect(children[0].sameNode(appended)).to.be.true;
348                     expect(children[0].getText()).to.equal('Alice');
349                 });
350
351                 it('can put new NodeElement at the beginning', function() {
352                     var c = canvas.fromXML('<section><div></div></section>'),
353                         prepended = c.doc().prepend({tag: 'header', klass: 'some.class'}),
354                         children = c.doc().children();
355
356                     expect(children).to.have.length(2);
357                     expect(children[0].sameNode(prepended)).to.be.true;
358                 });
359
360                 it('can put new TextElement at the beginning', function() {
361                     var c = canvas.fromXML('<section><div></div></section>'),
362                         prepended = c.doc().prepend({text: 'Alice'}),
363                         children = c.doc().children();
364
365                     expect(children).to.have.length(2)
366                     expect(children[0].sameNode(prepended)).to.be.true;
367                     expect(children[0].getText()).to.equal('Alice');
368                 });
369
370                 it('can put new NodeElement after another NodeElement', function() {
371                     var c = canvas.fromXML('<section><div></div></section>'),
372                         div = c.doc().children()[0],
373                         added = div.after({tag: 'header', klass: 'some.class'}),
374                         children = c.doc().children();
375                     expect(children.length).to.equal(2);
376                     expect(children[1].sameNode(added)).to.be.true;
377                 });
378
379                 it('can put new Nodeelement before another element', function() {
380                     var c = canvas.fromXML('<section><div></div></section>'),
381                         div = c.doc().children()[0],
382                         added = div.before({tag: 'header', klass: 'some.class'}),
383                         children = c.doc().children();
384                     expect(children.length).to.equal(2);
385                     expect(children[0].sameNode(added)).to.be.true;
386                 });
387
388                 it('can put new DocumentNodeElement after DocumentTextElement', function() {
389                     var c = canvas.fromXML('<section>Alice</section>'),
390                         text = c.doc().children()[0],
391                         added = text.after({tag: 'p'}),
392                         children = c.doc().children();
393
394                     expect(children.length).to.equal(2);
395                     expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
396                     expect(children[0].getText()).to.equal('Alice');
397                     expect(children[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
398                     expect(children[1].sameNode(added)).to.be.true;
399                 });
400                 it('can put new DocumentNodeElement before DocumentTextElement', function() {
401                     var c = canvas.fromXML('<section>Alice</section>'),
402                         text = c.doc().children()[0],
403                         added = text.before({tag: 'p'}),
404                         children = c.doc().children();
405
406                     expect(children.length).to.equal(2);
407                     expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
408                     expect(children[0].sameNode(added)).to.be.true;
409                     expect(children[1]).to.be.instanceOf(documentElement.DocumentTextElement);
410                     expect(children[1].getText()).to.equal('Alice');
411                 });
412
413                 it('can divide DocumentTextElement with a new DocumentNodeElement', function() {
414                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
415                         section = c.doc(),
416                         text = section.children()[0];
417
418                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 5}),
419                         sectionChildren = section.children(),
420                         lhsText = sectionChildren[0],
421                         rhsText = sectionChildren[2];
422
423                     expect(lhsText.getText()).to.equal('Alice');
424                     expect(returned.sameNode(sectionChildren[1]));
425                     expect(rhsText.getText()).to.equal(' has a cat');
426                 });
427
428                 it('treats dividing DocumentTextElement at the very end as appending after it', function() {
429                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
430                         section = c.doc(),
431                         text = section.children()[0];
432
433                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 15}),
434                         sectionChildren = section.children(),
435                         textElement = sectionChildren[0],
436                         nodeElement = sectionChildren[1];
437
438                     expect(sectionChildren.length).to.equal(2);
439                     expect(textElement.getText()).to.equal('Alice has a cat');
440                     expect(returned.sameNode(nodeElement)).to.be.true;
441                     expect(nodeElement.getWlxmlTag()).to.equal('aside');
442                 });
443
444                 it('treats dividing DocumentTextElement at the very beginning as appending before it', function() {
445                     var c = canvas.fromXML('<section>Alice has a cat</section>'),
446                         section = c.doc(),
447                         text = section.children()[0];
448
449                     var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 0}),
450                         sectionChildren = section.children(),
451                         nodeElement = sectionChildren[0],
452                         textElement = sectionChildren[1];
453                         
454                     expect(sectionChildren.length).to.equal(2);
455                     expect(textElement.getText()).to.equal('Alice has a cat');
456                     expect(returned.sameNode(nodeElement)).to.be.true;
457                     expect(nodeElement.getWlxmlTag()).to.equal('aside');
458                 });
459             });
460
461             describe('Splitting text', function() {
462                 
463                 it('splits DocumentTextElement\'s parent into two DocumentNodeElements of the same type', function() {
464                     var c = canvas.fromXML('<section><header>Some header</header></section>'),
465                         section = c.doc(),
466                         text = section.children()[0].children()[0];
467
468                     var returnedValue = text.split({offset: 5});
469                     expect(section.children().length).to.equal(2, 'section has two children');
470                     
471                     var header1 = section.children()[0];
472                     var header2 = section.children()[1];
473
474                     expect(header1.getWlxmlTag()).to.equal('header', 'first section child represents wlxml header');
475                     expect(header1.children().length).to.equal(1, 'first header has one text child');
476                     expect(header1.children()[0].getText()).to.equal('Some ', 'first header has correct content');
477                     expect(header2.getWlxmlTag()).to.equal('header', 'second section child represents wlxml header');
478                     expect(header2.children().length).to.equal(1, 'second header has one text child');
479                     expect(header2.children()[0].getText()).to.equal('header', 'second header has correct content');
480
481                     expect(returnedValue.first.sameNode(header1)).to.equal(true, 'first node returnde');
482                     expect(returnedValue.second.sameNode(header2)).to.equal(true, 'second node returned');
483                 });
484
485                 it('leaves empty copy of DocumentNodeElement if splitting at the very beginning', function() {
486                         var c = canvas.fromXML('<section><header>Some header</header></section>'),
487                         section = c.doc(),
488                         text = section.children()[0].children()[0];
489
490                         text.split({offset: 0});
491                         
492                         var header1 = section.children()[0];
493                         var header2 = section.children()[1];
494
495                         expect(header1.children().length).to.equal(0);
496                         expect(header2.children()[0].getText()).to.equal('Some header');
497                 });
498
499                 it('leaves empty copy of DocumentNodeElement if splitting at the very end', function() {
500                         var c = canvas.fromXML('<section><header>Some header</header></section>'),
501                         section = c.doc(),
502                         text = section.children()[0].children()[0];
503
504                         text.split({offset: 11});
505                         
506                         var header1 = section.children()[0];
507                         var header2 = section.children()[1];
508
509                         expect(header1.children()[0].getText()).to.equal('Some header');
510                         expect(header2.children().length).to.equal(0);
511                 });
512
513                 it('keeps DocumentTextElement\'s parent\'s children elements intact', function() {
514                     var c = canvas.fromXML('\
515                             <section>\
516                                 <header>\
517                                     A <span>fancy</span> and <span>nice</span> header\
518                                 </header>\
519                             </section>'),
520                         section = c.doc(),
521                         header = section.children()[0],
522                         textAnd = header.children()[2];
523
524                     textAnd.split({offset: 2});
525                     
526                     var sectionChildren = section.children();
527                     expect(sectionChildren.length).to.equal(2, 'Section has two children');
528                     expect(sectionChildren[0].getWlxmlTag()).to.equal('header', 'First section element is a wlxml header');
529                     expect(sectionChildren[1].getWlxmlTag()).to.equal('header', 'Second section element is a wlxml header');
530
531                     var firstHeaderChildren = sectionChildren[0].children();
532                     expect(firstHeaderChildren.length).to.equal(3, 'First header has three children');
533                     expect(firstHeaderChildren[0].getText()).to.equal('A ', 'First header starts with a text');
534                     expect(firstHeaderChildren[1].getWlxmlTag()).to.equal('span', 'First header has span in the middle');
535                     expect(firstHeaderChildren[2].getText()).to.equal(' a', 'First header ends with text');
536
537                     var secondHeaderChildren = sectionChildren[1].children();
538                     expect(secondHeaderChildren.length).to.equal(3, 'Second header has three children');
539                     expect(secondHeaderChildren[0].getText()).to.equal('nd ', 'Second header starts with text');
540                     expect(secondHeaderChildren[1].getWlxmlTag()).to.equal('span', 'Second header has span in the middle');
541                     expect(secondHeaderChildren[2].getText()).to.equal(' header', 'Second header ends with text');
542                 });
543             });
544
545             describe('wrapping', function() {
546                 it('wraps DocumentNodeElement', function() {
547                     var c = canvas.fromXML('<section><div></div></section>'),
548                         div = c.doc().children()[0];
549                     
550                     var returned = div.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
551                         parent = div.parent(),
552                         parent2 = c.doc().children()[0];
553
554                     expect(returned.sameNode(parent)).to.be.true;
555                     expect(returned.sameNode(parent2)).to.be.true;
556                     expect(returned.getWlxmlTag()).to.equal('header');
557                     expect(returned.getWlxmlClass()).to.equal('some.class');
558                 });
559                 it('wraps DocumentTextElement', function() {
560                     var c = canvas.fromXML('<section>Alice</section>'),
561                         text = c.doc().children()[0];
562                     
563                     var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class'}),
564                         parent = text.parent(),
565                         parent2 = c.doc().children()[0];
566
567                     expect(returned.sameNode(parent)).to.be.true;
568                     expect(returned.sameNode(parent2)).to.be.true;
569                     expect(returned.getWlxmlTag()).to.equal('header');
570                     expect(returned.getWlxmlClass()).to.equal('some.class');
571                 });
572                 
573                 describe('wrapping part of DocumentTextElement', function() {
574                     [{start: 5, end: 12}, {start: 12, end: 5}].forEach(function(offsets) {
575                         it('wraps in the middle ' + offsets.start + '/' + offsets.end, function() {
576                             var c = canvas.fromXML('<section>Alice has a cat</section>'),
577                                 text = c.doc().children()[0];
578                             
579                             var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: offsets.start, end: offsets.end}),
580                                 children = c.doc().children();
581
582                             expect(children.length).to.equal(3);
583                             
584                             expect(children[0]).to.be.instanceOf(documentElement.DocumentTextElement);
585                             expect(children[0].getText()).to.equal('Alice');
586
587                             expect(children[1].sameNode(returned)).to.be.true;
588                             expect(returned.getWlxmlTag()).to.equal('header');
589                             expect(returned.getWlxmlClass()).to.equal('some.class');
590                             expect(children[1].children().length).to.equal(1);
591                             expect(children[1].children()[0].getText()).to.equal(' has a ');
592
593                             expect(children[2]).to.be.instanceOf(documentElement.DocumentTextElement);
594                             expect(children[2].getText()).to.equal('cat');
595                         });
596                     });
597
598                     it('wraps whole text inside DocumentTextElement if offsets span entire content', function() {
599                          var c = canvas.fromXML('<section>Alice has a cat</section>'),
600                              text = c.doc().children()[0];
601                          
602                          var returned = text.wrapWithNodeElement({tag: 'header', klass: 'some.class', start: 0, end: 15}),
603                              children = c.doc().children();
604
605                          expect(children.length).to.equal(1);
606                          expect(children[0]).to.be.instanceOf(documentElement.DocumentNodeElement);
607                          expect(children[0].children()[0].getText()).to.equal('Alice has a cat');
608                     });
609                 });
610
611                 it('wraps text spanning multiple sibling DocumentTextNodes', function() {
612                     var c = canvas.fromXML('<section>Alice has a <span>small</span> cat</section>'),
613                         section = c.doc(),
614                         wrapper = c.wrapText({
615                             inside: section, 
616                             _with: {tag: 'span', klass: 'some.class'},
617                             offsetStart: 6,
618                             offsetEnd: 4,
619                             textNodeIdx: [0,2]
620                         });
621
622                     expect(section.children().length).to.equal(2);
623                     expect(section.children()[0]).to.be.instanceOf(documentElement.DocumentTextElement);
624                     expect(section.children()[0].getText()).to.equal('Alice ');
625
626                     var wrapper2 = section.children()[1];
627                     expect(wrapper2.sameNode(wrapper)).to.be.true;
628
629                     var wrapperChildren = wrapper.children();
630                     expect(wrapperChildren.length).to.equal(3);
631                     expect(wrapperChildren[0].getText()).to.equal('has a ');
632
633                     expect(wrapperChildren[1]).to.be.instanceOf(documentElement.DocumentNodeElement);
634                     expect(wrapperChildren[1].children().length).to.equal(1);
635                     expect(wrapperChildren[1].children()[0].getText()).to.equal('small');
636
637                     expect(wrapperChildren[2].getText()).to.equal(' cat');
638                 });
639             });
640
641             describe('unwrapping', function() {
642                 it('unwraps DocumentTextElement from its parent DocumentNodeElement if it\'s its only child', function() {
643                     var c = canvas.fromXML('<section>Alice <span>has a</span> cat</section>'),
644                     section = c.doc(),
645                     text = section.children()[1].children()[0];
646
647                     var newTextContainer = text.unwrap();
648
649                     expect(section.children().length).to.equal(1, 'section has one child');
650                     expect(section.children()[0].getText()).to.equal('Alice has a cat');
651                     expect(newTextContainer.sameNode(c.doc())).to.equal(true, 'unwrap returns new text parent DocumentNodeElement');
652                 })
653             });
654         });
655
656         describe('Lists api', function() {
657             describe('creating lists', function() {
658                 it('allows creation of a list from existing sibling DocumentElements', function() {
659                     var c = canvas.fromXML('\
660                         <section>\
661                             Alice\
662                             <div>has</div>\
663                             a\
664                             <div>cat</div>\
665                         </section>'),
666                         section = c.doc(),
667                         textHas = section.children()[1],
668                         divA = section.children()[2]
669                     
670                     c.list.create({element1: textHas, element2: divA});
671
672                     expect(section.children().length).to.equal(3, 'section has three child elements');
673
674                     var child1 = section.children()[0],
675                         list = section.children()[1],
676                         child3 = section.children()[2];
677
678                     expect(child1.getText()).to.equal('Alice');
679                     expect(list.is('list')).to.equal(true, 'second child is a list');
680                     expect(list.children().length).to.equal(2, 'list contains two elements');
681                     list.children().forEach(function(child) {
682                         expect(child.getWlxmlClass()).to.equal('item', 'list childs have wlxml class of item');
683                     });
684                     expect(child3.children()[0].getText()).to.equal('cat');
685                 });
686                 
687                 it('allows creating nested list from existing sibling list items', function() {
688                     var c = canvas.fromXML('\
689                         <section>\
690                             <div class="list-items">\
691                                 <div class="item">A</div>\
692                                 <div class="item">B</div>\
693                                 <div class="item">C</div>\
694                                 <div class="item">D</div>\
695                             </div>\
696                         </section>'),
697                         outerList = c.doc().children()[0],
698                         itemB = outerList.children()[1],
699                         itemC = outerList.children()[2];
700
701
702                         c.list.create({element1: itemB, element2: itemC});
703
704                     var outerListItems = outerList.children(),
705                         innerList = outerListItems[1].children()[0],
706                         innerListItems = innerList.children();
707
708                     expect(outerListItems.length).to.equal(3, 'outer list has three items');
709                     expect(outerListItems[0].children()[0].getText()).to.equal('A', 'first outer item ok');
710                     expect(outerListItems[1].getWlxmlClass()).to.equal('item', 'inner list is wrapped by item element');
711
712                     expect(innerList.is('list')).to.equal(true, 'inner list created');
713                     expect(innerListItems.length).to.equal(2, 'inner list has two items');
714                     expect(innerListItems[0].children()[0].getText()).to.equal('B', 'first inner item ok');
715                     expect(innerListItems[1].children()[0].getText()).to.equal('C', 'second inner item ok');
716
717                     expect(outerListItems[2].children()[0].getText()).to.equal('D', 'last outer item ok');
718
719                 });
720
721             });
722
723             describe('extracting list items', function() {
724                 it('creates two lists with extracted items in the middle if extracting from the middle of the list', function() {
725                     var c = canvas.fromXML('\
726                         <section>\
727                             <div class="list.items">\
728                                 <div class="item">0</div>\
729                                 <div class="item">1</div>\
730                                 <div class="item">2</div>\
731                                 <div class="item">3</div>\
732                             </div>\
733                         </section>'),
734                         list = c.doc().children()[0],
735                         item1 = list.children()[1],
736                         item2 = list.children()[2];
737
738                     c.list.extractItems({element1: item1, element2: item2});
739
740                     var section = c.doc(),
741                         list1 = section.children()[0],
742                         oldItem1 = section.children()[1],
743                         oldItem2 = section.children()[2],
744                         list2 = section.children()[3];
745
746                     expect(section.children().length).to.equal(4, 'section contains four children');
747                     
748                     expect(list1.is('list')).to.equal(true, 'first section child is a list');
749                     expect(list1.children().length).to.equal(1, 'first list has one child');
750                     expect(list1.children()[0].children()[0].getText()).to.equal('0', 'first item of the first list is a first item of the original list');
751
752                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item got extracted');
753                     expect(oldItem1.getWlxmlClass() === undefined).to.equal(true, 'first extracted element has no wlxml class');
754
755                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item got extracted');
756                     expect(oldItem2.getWlxmlClass() === undefined).to.equal(true, 'second extracted element has no wlxml class');
757
758                     expect(list2.is('list')).to.equal(true, 'last section child is a list');
759                     expect(list2.children().length).to.equal(1, 'second list has one child');
760                     expect(list2.children()[0].children()[0].getText()).to.equal('3', 'first item of the second list is a last item of the original list');
761                 });
762
763                 it('puts extracted items above the list if starting item is the first one', function() {
764                     var c = canvas.fromXML('\
765                         <section>\
766                             <div class="list.items">\
767                                 <div class="item">0</div>\
768                                 <div class="item">1</div>\
769                                 <div class="item">2</div>\
770                             </div>\
771                         </section>'),
772                         list = c.doc().children()[0],
773                         item1 = list.children()[0],
774                         item2 = list.children()[1],
775                         item3 = list.children()[2];
776
777                     c.list.extractItems({element1: item1, element2: item2});
778
779                     var section = c.doc(),
780                         oldItem1 = section.children()[0],
781                         oldItem2 = section.children()[1],
782                         newList = section.children()[2];
783
784                     expect(section.children().length).to.equal(3, 'section has three children');
785                     expect(oldItem1.children()[0].getText()).to.equal('0', 'first item extracted');
786                     expect(oldItem2.children()[0].getText()).to.equal('1', 'second item extracted');
787                     expect(newList.is('list')).to.equal(true, 'list lies below extracted item');
788                     expect(newList.children().length).to.equal(1, 'list has now one child');
789                 });
790
791                 it('puts extracted items below the list if ending item is the last one', function() {
792                     var c = canvas.fromXML('\
793                         <section>\
794                             <div class="list.items">\
795                                 <div class="item">0</div>\
796                                 <div class="item">1</div>\
797                                 <div class="item">2</div>\
798                             </div>\
799                         </section>'),
800                         list = c.doc().children()[0],
801                         item1 = list.children()[0],
802                         item2 = list.children()[1],
803                         item3 = list.children()[2];
804
805                     c.list.extractItems({element1: item2, element2: item3});
806
807                     var section = c.doc(),
808                         oldItem1 = section.children()[1],
809                         oldItem2 = section.children()[2],
810                         newList = section.children()[0];
811
812                     expect(section.children().length).to.equal(3, 'section has three children');
813                     expect(oldItem1.children()[0].getText()).to.equal('1', 'first item extracted');
814                     expect(oldItem2.children()[0].getText()).to.equal('2', 'second item extracted');
815                     expect(newList.is('list')).to.equal(true, 'list lies above extracted item');
816                     expect(newList.children().length).to.equal(1, 'list has now one child');
817                 });
818
819                 it('removes list if all its items are extracted', function() {
820                     var c = canvas.fromXML('\
821                         <section>\
822                             <div class="list.items">\
823                                 <div class="item">some item</div>\
824                                 <div class="item">some item 2</div>\
825                             </div>\
826                         </section>'),
827                         list = c.doc().children()[0],
828                         item1 = list.children()[0],
829                         item2 = list.children()[1];
830
831                     c.list.extractItems({element1: item1, element2: item2});
832
833                     var section = c.doc(),
834                         list1 = section.children()[0],
835                         oldItem1 = section.children()[0],
836                         oldItem2 = section.children()[1];
837
838                     expect(section.children().length).to.equal(2, 'section contains two children');
839                     expect(oldItem1.children()[0].getText()).to.equal('some item');
840                     expect(oldItem2.children()[0].getText()).to.equal('some item 2');
841                 });
842
843                 it('creates two lists with extracted items in the middle if extracting from the middle of the list - nested case' , function() {
844                     var c = canvas.fromXML('\
845                         <section>\
846                             <div class="list.items">\
847                                 <div class="item">0</div>\
848                                 <div class="item">\
849                                     <div class="list.items">\
850                                         <div class="item">1.1</div>\
851                                         <div class="item">1.2</div>\
852                                         <div class="item">1.3</div>\
853                                     </div>\
854                                 </div>\
855                                 <div class="item">2</div>\
856                             </div>\
857                         </section>'),
858                         list = c.doc().children()[0],
859                         nestedList = list.children()[1].children()[0],
860                         nestedListItem = nestedList.children()[1];
861
862                     c.list.extractItems({element1: nestedListItem, element2: nestedListItem});
863
864                     var section = c.doc(),
865                         list = section.children()[0],
866                         item1 = list.children()[0],
867                         item2 = list.children()[1], //
868                         item3 = list.children()[2],
869                         item4 = list.children()[3], //
870                         item5 = list.children()[4],
871                         nestedList1 = item2.children()[0],
872                         nestedList2 = item4.children()[0];
873
874                     expect(list.children().length).to.equal(5, 'top list has five items');
875                     
876                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
877
878                     expect(item2.getWlxmlClass()).to.equal('item', 'first nested list is still wrapped in item element');
879                     expect(nestedList1.children().length).to.equal(1, 'first nested list is left with one child');
880                     expect(nestedList1.children()[0].children()[0].getText()).to.equal('1.1', 'first nested list item left alone');
881                     
882                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
883
884                     expect(item4.getWlxmlClass()).to.equal('item', 'second nested list is still wrapped in item element');
885                     expect(nestedList2.children().length).to.equal(1, 'second nested list is left with one child');
886                     expect(nestedList2.children()[0].children()[0].getText()).to.equal('1.3', 'second nested list item left alone');
887
888                     expect(item5.children()[0].getText()).to.equal('2', 'last item ok');
889                 });
890
891                 it('puts extracted items below the list if ending item is the last one - nested case' , function() {
892                     var c = canvas.fromXML('\
893                         <section>\
894                             <div class="list.items">\
895                                 <div class="item">0</div>\
896                                 <div class="item">\
897                                     <div class="list.items">\
898                                         <div class="item">1.1</div>\
899                                         <div class="item">1.2</div>\
900                                         <div class="item">1.3</div>\
901                                     </div>\
902                                 </div>\
903                                 <div class="item">2</div>\
904                             </div>\
905                         </section>'),
906                         list = c.doc().children()[0],
907                         nestedList = list.children()[1].children()[0],
908                         nestedListItem1 = nestedList.children()[1],
909                         nestedListItem2 = nestedList.children()[2];
910
911                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
912
913                     var section = c.doc(),
914                         list = section.children()[0],
915                         item1 = list.children()[0],
916                         item2 = list.children()[1],
917                         item3 = list.children()[2],
918                         item4 = list.children()[3],
919                         item5 = list.children()[4];
920                     nestedList = item2.children()[0];
921
922                     expect(list.children().length).to.equal(5, 'top list has five items');
923                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
924                     expect(item2.getWlxmlClass()).to.equal('item', 'nested list is still wrapped in item element');
925                     expect(nestedList.children().length).to.equal(1, 'nested list is left with one child');
926                     expect(nestedList.children()[0].children()[0].getText()).to.equal('1.1', 'nested list item left alone');
927                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
928                     expect(item4.children()[0].getText()).to.equal('1.3', 'fourth item ok');
929                     expect(item5.children()[0].getText()).to.equal('2', 'fifth item ok');
930                 });
931
932                 it('puts extracted items above the list if starting item is the first one - nested case' , function() {
933                     var c = canvas.fromXML('\
934                         <section>\
935                             <div class="list.items">\
936                                 <div class="item">0</div>\
937                                 <div class="item">\
938                                     <div class="list.items">\
939                                         <div class="item">1.1</div>\
940                                         <div class="item">1.2</div>\
941                                         <div class="item">1.3</div>\
942                                     </div>\
943                                 </div>\
944                                 <div class="item">2</div>\
945                             </div>\
946                         </section>'),
947                         list = c.doc().children()[0],
948                         nestedList = list.children()[1].children()[0],
949                         nestedListItem1 = nestedList.children()[0],
950                         nestedListItem2 = nestedList.children()[1];
951
952                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
953
954                     var section = c.doc(),
955                         list = section.children()[0],
956                         item1 = list.children()[0],
957                         item2 = list.children()[1],
958                         item3 = list.children()[2],
959                         item4 = list.children()[3],
960                         item5 = list.children()[4];
961                     nestedList = item4.children()[0];
962
963                     expect(list.children().length).to.equal(5, 'top list has five items');
964                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
965                     expect(item2.children()[0].getText()).to.equal('1.1', 'second item ok');
966                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
967                     
968                     expect(item4.getWlxmlClass()).to.equal('item', 'nested list is still wrapped in item element');
969                     expect(nestedList.children().length).to.equal(1, 'nested list is left with one child');
970                     expect(nestedList.children()[0].children()[0].getText()).to.equal('1.3', 'nested list item left alone');
971                     expect(item5.children()[0].getText()).to.equal('2', 'fifth item ok');
972                 });
973
974                 it('removes list if all its items are extracted - nested case', function() {
975                     var c = canvas.fromXML('\
976                         <section>\
977                             <div class="list.items">\
978                                 <div class="item">0</div>\
979                                 <div class="item">\
980                                     <div class="list.items">\
981                                         <div class="item">1.1</div>\
982                                         <div class="item">1.2</div>\
983                                     </div>\
984                                 </div>\
985                                 <div class="item">2</div>\
986                             </div>\
987                         </section>'),
988                         list = c.doc().children()[0],
989                         nestedList = list.children()[1].children()[0],
990                         nestedListItem1 = nestedList.children()[0],
991                         nestedListItem2 = nestedList.children()[1];
992
993                     c.list.extractItems({element1: nestedListItem1, element2: nestedListItem2});
994
995                     var section = c.doc(),
996                         list = section.children()[0],
997                         item1 = list.children()[0],
998                         item2 = list.children()[1],
999                         item3 = list.children()[2],
1000                         item4 = list.children()[3];
1001
1002                     expect(list.children().length).to.equal(4, 'top list has four items');
1003                     expect(item1.children()[0].getText()).to.equal('0', 'first item ok');
1004                     expect(item2.children()[0].getText()).to.equal('1.1', 'second item ok');
1005                     expect(item3.children()[0].getText()).to.equal('1.2', 'third item ok');
1006                     expect(item4.children()[0].getText()).to.equal('2', 'fourth item ok');
1007                 });
1008
1009                 it('extracts items out of outer most list when merge flag is set to false', function() {
1010                     var c = canvas.fromXML('\
1011                         <section>\
1012                             <div class="list.items">\
1013                                 <div class="item">0</div>\
1014                                 <div class="item">\
1015                                     <div class="list.items">\
1016                                         <div class="item">1.1</div>\
1017                                         <div class="item">1.2</div>\
1018                                     </div>\
1019                                 </div>\
1020                                 <div class="item">2</div>\
1021                             </div>\
1022                         </section>'),
1023                         section = c.doc(),
1024                         list = section.children()[0],
1025                         nestedList = list.children()[1].children()[0],
1026                         nestedListItem = nestedList.children()[0];
1027
1028                     var test = c.list.extractItems({element1: nestedListItem, element2: nestedListItem, merge: false});
1029
1030                     expect(test).to.equal(true, 'extraction status ok');
1031
1032                     var sectionChildren = section.children(),
1033                         extractedItem = sectionChildren[1];
1034
1035                     expect(sectionChildren.length).to.equal(3, 'section has three children');
1036                     expect(sectionChildren[0].is('list')).to.equal(true, 'first child is a list');
1037
1038                     expect(extractedItem.getWlxmlTag()).to.equal('div', 'extracted item is a wlxml div');
1039                     expect(extractedItem.getWlxmlClass()).to.equal(undefined, 'extracted item has no wlxml class');
1040                     expect(extractedItem.children()[0].getText()).to.equal('1.1', 'extracted item ok');
1041                     expect(sectionChildren[2].is('list')).to.equal(true, 'second child is a list');
1042                 });
1043             });
1044         });
1045
1046     });
1047
1048     describe('Cursor', function() {
1049
1050         var getSelection;
1051
1052         var findTextNode = function(inside, text) {
1053             var nodes = inside.find(':not(iframe)').addBack().contents().filter(function() {
1054                 return this.nodeType === Node.TEXT_NODE && this.data === text;
1055             });
1056             if(nodes.length)
1057                 return nodes[0];
1058             return null;
1059         }
1060
1061         beforeEach(function() {
1062             getSelection = sinon.stub(window, 'getSelection');
1063         });
1064
1065         afterEach(function() {
1066             getSelection.restore();
1067         });
1068
1069         it('returns position when browser selection collapsed', function() {
1070             var c = canvas.fromXML('<section>Alice has a cat</section>'),
1071                 dom = c.doc().dom(),
1072                 text = findTextNode(dom, 'Alice has a cat');
1073
1074             expect(text.nodeType).to.equal(Node.TEXT_NODE, 'correct node selected');
1075             expect($(text).text()).to.equal('Alice has a cat');
1076
1077             getSelection.returns({
1078                 anchorNode: text,
1079                 focusNode: text,
1080                 anchorOffset: 5,
1081                 focusOffset: 5,
1082                 isCollapsed: true
1083             });
1084             var cursor = c.getCursor(),
1085                 position = cursor.getPosition();
1086
1087             expect(cursor.isSelecting()).to.equal(false, 'cursor is not selecting anything');
1088             expect(position.element.getText()).to.equal('Alice has a cat');
1089             expect(position.offset).to.equal(5);
1090             expect(position.offsetAtEnd).to.equal(false, 'offset is not at end');
1091
1092             getSelection.returns({
1093                 anchorNode: text,
1094                 focusNode: text,
1095                 anchorOffset: 15,
1096                 focusOffset: 15,
1097                 isCollapsed: true
1098             });
1099
1100             expect(cursor.getPosition().offsetAtEnd).to.equal(true, 'offset at end');
1101         });
1102
1103         it('returns boundries of selection when browser selection not collapsed', function() {
1104             var c = canvas.fromXML('<section>Alice <span>has</span> a <span>big</span> cat</section>'),
1105                 dom = c.doc().dom(),
1106                 text = {
1107                     alice: findTextNode(dom, 'Alice '),
1108                     has: findTextNode(dom, 'has'),
1109                     cat: findTextNode(dom, ' cat')
1110                 },
1111                 cursor = c.getCursor(),
1112                 aliceElement = c.getDocumentElement(text.alice),
1113                 catElement = c.getDocumentElement(text.cat);
1114
1115
1116                 [
1117                     {focus: text.alice, focusOffset: 1, anchor: text.cat,   anchorOffset: 2, selectionAnchor: catElement},
1118                     {focus: text.cat,   focusOffset: 2, anchor: text.alice, anchorOffset: 1, selectionAnchor: aliceElement}
1119                 ].forEach(function(s, idx) {
1120                     getSelection.returns({isColapsed: false, anchorNode: s.anchor, anchorOffset: s.anchorOffset, focusNode: s.focus, focusOffset: s.focusOffset});
1121
1122                     var selectionStart = cursor.getSelectionStart(),
1123                         selectionEnd = cursor.getSelectionEnd(),
1124                         selectionAnchor = cursor.getSelectionAnchor();
1125
1126                     expect(cursor.isSelecting()).to.equal(true, 'cursor is selecting');
1127                     expect(selectionStart.element.sameNode(aliceElement)).to.equal(true, '"Alice" is the start of the selection ' + idx);
1128                     expect(selectionStart.offset).to.equal(1, '"Alice" offset ok' + idx);
1129                     expect(selectionEnd.element.sameNode(catElement)).to.equal(true, '"Cat" is the start of the selection ' + idx);
1130                     expect(selectionEnd.offset).to.equal(2, '"Cat" offset ok' + idx);
1131                     expect(selectionAnchor.element.sameNode(s.selectionAnchor)).to.equal(true, 'anchor ok');
1132                     expect(selectionAnchor.offset).to.equal(s.anchorOffset, 'anchor offset ok');
1133                 });
1134         });
1135
1136         it('recognizes when browser selection boundries lies in sibling DocumentTextElements', function() {
1137             var c = canvas.fromXML('<section>Alice <span>has</span> a <span>big</span> cat</section>'),
1138                 dom = c.doc().dom(),
1139                 text = {
1140                     alice: findTextNode(dom, 'Alice '),
1141                     has: findTextNode(dom, 'has'),
1142                     a: findTextNode(dom, ' a '),
1143                     big: findTextNode(dom, 'big'),
1144                     cat: findTextNode(dom, ' cat'),
1145                 },
1146                 cursor = c.getCursor();
1147
1148             expect($(text.alice).text()).to.equal('Alice ');
1149             expect($(text.has).text()).to.equal('has');
1150             expect($(text.a).text()).to.equal(' a ');
1151             expect($(text.big).text()).to.equal('big');
1152             expect($(text.cat).text()).to.equal(' cat');
1153
1154             getSelection.returns({anchorNode: text.alice, focusNode: text.a});
1155             expect(cursor.isSelectingSiblings()).to.equal(true, '"Alice" and "a" are children');
1156
1157             getSelection.returns({anchorNode: text.alice, focusNode: text.cat});
1158             expect(cursor.isSelectingSiblings()).to.equal(true, '"Alice" and "cat" are children');
1159
1160             getSelection.returns({anchorNode: text.alice, focusNode: text.has});
1161             expect(cursor.isSelectingSiblings()).to.equal(false, '"Alice" and "has" are not children');
1162
1163             getSelection.returns({anchorNode: text.has, focusNode: text.big});
1164             expect(cursor.isSelectingSiblings()).to.equal(false, '"has" and "big" are not children');
1165             
1166         })
1167
1168         describe('zero width space handling', function() {
1169             it('position range includes ZWS at the boundries of text in case when native selection api doesn\'t', function() {
1170                 var c = canvas.fromXML("<section>Alice</section>"),
1171                     dom = c.doc().dom(),
1172                     textNode = findTextNode(dom, 'Alice'),
1173                     cursor = c.getCursor();
1174
1175                 textNode.data = utils.unicode.ZWS + 'Alice';
1176                 getSelection.returns({anchorNode: textNode, anchorOffset: 1, focusNode: textNode, focusOffset: 1});
1177                 expect(cursor.getPosition().offset).to.equal(0);
1178                 expect(cursor.getPosition().offsetAtBeginning).to.equal(true, 'offset at beginning');
1179                 
1180                 textNode.data = 'Alice' + utils.unicode.ZWS;
1181                 getSelection.returns({anchorNode: textNode, anchorOffset: 5, focusNode: textNode, focusOffset: 5});
1182                 expect(cursor.getPosition().offset).to.equal(6);
1183                 expect(cursor.getPosition().offsetAtEnd).to.equal(true, 'offset at end');
1184             });
1185         });
1186     });
1187
1188     describe('Serializing document to WLXML', function() {
1189         it('keeps document intact when no changes have been made', function() {
1190             var xmlIn = '<section>Alice<div>has</div>a <span class="uri" meta-uri="http://cat.com">cat</span>!</section>',
1191                 c = canvas.fromXML(xmlIn),
1192                 xmlOut = c.toXML();
1193
1194             var parser = new DOMParser(),
1195                 input = parser.parseFromString(xmlIn, "application/xml").childNodes[0],
1196                 output = parser.parseFromString(xmlOut, "application/xml").childNodes[0];
1197             
1198             expect(input.isEqualNode(output)).to.be.true;
1199         });
1200
1201         it('keeps arbitrary node attributes intact', function() {
1202             var xmlIn = '<section a="1" xmlns:dcterms="http://purl.org/dc/terms/"></section>',
1203                 $xmlOut = $(canvas.fromXML(xmlIn).toXML());
1204
1205             expect($xmlOut.attr('a')).to.equal('1');
1206             expect($xmlOut.attr('xmlns:dcterms')).to.equal('http://purl.org/dc/terms/');
1207         });
1208
1209         it('doesn\' serialize meta attribute if its empty', function() {
1210             var c;
1211
1212             c = canvas.fromXML('<section class="uri" meta-uri="some.uri"></section>');
1213             c.doc().setWlxmlMetaAttr('uri', '');
1214             expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'overriding attribute with zero length string');
1215
1216             c = canvas.fromXML('<section class="uri"></section>');
1217             c.doc().setWlxmlMetaAttr('uri', '');
1218             expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'setting attribute to zero length string');
1219         });
1220
1221         describe('output xml', function() {
1222             it('keeps entities intact', function() {
1223                 var xmlIn = '<section>&lt; &gt;</section>',
1224                     c = canvas.fromXML(xmlIn),
1225                     xmlOut = c.toXML();
1226                 expect(xmlOut).to.equal(xmlIn);
1227             });
1228             it('keeps entities intact when they form html/xml', function() {
1229                 var xmlIn = '<section>&lt;abc&gt;</section>',
1230                     c = canvas.fromXML(xmlIn),
1231                     xmlOut = c.toXML();
1232                 expect(xmlOut).to.equal(xmlIn);
1233             });
1234         });
1235
1236         describe('formatting output xml', function() {
1237             /*it('keeps white spaces at the edges of input xml', function() {
1238                 var xmlIn = '  <section></section>  ',
1239                 c = canvas.fromXML(xmlIn),
1240                 xmlOut = c.toXML();
1241
1242                 expect(xmlOut.substr(4)).to.equal('   <', 'start');
1243                 expect(xmlOut.substr(-2)).to.equal('>  ', 'end');
1244             });*/
1245             it('keeps white space between XML nodes', function() {
1246                 var xmlIn = '<section>\n\n\n<div></div>\n\n\n<div></div>\n\n\n</section>',
1247                 c = canvas.fromXML(xmlIn),
1248                 xmlOut = c.toXML();
1249
1250                 var partsIn = xmlIn.split('\n\n\n'),
1251                     partsOut = xmlOut.split('\n\n\n');
1252                 
1253                 expect(partsIn).to.deep.equal(partsOut);
1254             });
1255
1256             it('keeps white space between XML nodes - inline case', function() {
1257                 var xmlIn = '<section>\n\n\n<span></span>\n\n\n<span></span>\n\n\n</section>',
1258                 c = canvas.fromXML(xmlIn),
1259                 xmlOut = c.toXML();
1260
1261                 var partsIn = xmlIn.split('\n\n\n'),
1262                     partsOut = xmlOut.split('\n\n\n');
1263                 
1264                 expect(partsIn).to.deep.equal(partsOut);
1265             });
1266
1267             it('keeps white space at the beginning of text', function() {
1268                 var xmlIn = '<section>    abc<div>some div</div>    abc</section>',
1269                     c = canvas.fromXML(xmlIn),
1270                     xmlOut = c.toXML();
1271
1272                 expect(xmlOut).to.equal(xmlIn);
1273             });
1274
1275             it('nests new children block elements', function() {
1276                 var c = canvas.fromXML('<section></section>');
1277     
1278                 c.doc().append({tag: 'header'});
1279
1280                 var xmlOut = c.toXML();
1281                 expect(xmlOut.split('\n  ')[0]).to.equal('<section>', 'nesting start ok');
1282                 expect(xmlOut.split('\n').slice(-1)[0]).to.equal('</section>', 'nesting end ok');
1283
1284             });
1285
1286             it('doesn\'t nest new children inline elements', function() {
1287                 var c = canvas.fromXML('<section></section>');
1288     
1289                 c.doc().append({tag: 'span'});
1290
1291                 var xmlOut = c.toXML();
1292                 expect(xmlOut).to.equal('<section><span></span></section>');
1293             });
1294
1295             it('keeps original white space at the end of text', function() {
1296                 
1297                 var xmlIn = '<header>    Some text ended with white space \
1298                 \
1299                 <span class="uri">Some text</span> some text\
1300             \
1301             </header>',
1302                     c = canvas.fromXML(xmlIn);
1303
1304             var xmlOut = c.toXML();
1305             console.log(xmlOut);
1306             expect(xmlOut).to.equal(xmlIn);
1307             });
1308
1309             it('keeps white space around text node', function() {
1310                 var xmlIn = '<section>\
1311                 <header>header1</header>\
1312                 Some text surrounded by white space\
1313                 <header>header2</header>\
1314             </section>',
1315                     c = canvas.fromXML(xmlIn);
1316
1317                 var xmlOut = c.toXML();
1318                 expect(xmlOut).to.equal(xmlIn);
1319             });
1320
1321             it('keeps white space around text node - last node case', function() {
1322                 var xmlIn = '<section>\
1323                 <header>header</header>\
1324                     \
1325                 Some text surrounded by white space\
1326                     \
1327             </section>',
1328                     c = canvas.fromXML(xmlIn);
1329
1330                 var xmlOut = c.toXML();
1331                 expect(xmlOut).to.equal(xmlIn);
1332             });
1333
1334             it('keeps white space after detaching text element', function() {
1335                 var xmlIn = '<section><header>header</header>\n\
1336                     \n\
1337                 text1\n\
1338                     \n\
1339             </section>',
1340                     expectedXmlOut = '<section><header>header</header>\n\
1341                     \n\
1342                 \n\
1343                     \n\
1344             </section>',
1345                     c = canvas.fromXML(xmlIn),
1346                     children = c.doc().children(),
1347                     text = children[children.length-1];
1348                 
1349                 expect(text.getText()).to.equal('text1');
1350
1351                 text.detach();
1352
1353                 var xmlOut = c.toXML();
1354                 expect(xmlOut).to.equal(expectedXmlOut);
1355             });
1356
1357         })
1358     })
1359 });
1360
1361
1362 });