+describe('Handling empty text nodes', function() {
+ it('puts zero width space into node with about to be remove text', function(done) {
+ var c = getCanvasFromXML('<section>Alice</section>'),
+ textElement = c.doc().children()[0];
+ textElement.setText('');
+
+ /* Wait for MutationObserver to kick in. */
+ wait(function() {
+ expect(textElement.getText({raw:true})).to.equal(utils.unicode.ZWS, 'ZWS in canvas');
+ expect(c.wlxmlDocument.root.contents()[0].getText()).to.equal('', 'empty string in a document');
+ done();
+ });
+ });
+});
+
+describe('Handling changes to the document', function() {
+ it('replaces the whole canvas content when document root node replaced', function() {
+ var doc = getDocumentFromXML('<section></section>'),
+ c = canvas.fromXMLDocument(doc);
+
+ var header = doc.root.replaceWith({tagName: 'header'});
+ expect(c.doc().data('wlxmlNode').sameNode(header)).to.equal(true);
+ });
+});
+
+describe('Listening to document changes', function() {
+
+ it('Handling element node moved', function() {
+ var doc = getDocumentFromXML('<section><a></a><b></b></section>'),
+ a = doc.root.contents()[0],
+ b = doc.root.contents()[1],
+ c = canvas.fromXMLDocument(doc);
+
+ a.before(b);
+ var sectionChildren = c.doc().children();
+ expect(sectionChildren.length).to.equal(2);
+ expect(sectionChildren[0].getWlxmlTag()).to.equal('b');
+ expect(sectionChildren[1].getWlxmlTag()).to.equal('a');
+ });