'),
                         appended = c.doc().append({text: 'Alice'}),
                         children = c.doc().children();
 
-                    expect(children.length).to.equal(1);
-                    expect(children[0].sameNode(appended)).to.be.true;
+                    expect(children.length).to.equal(2);
+                    expect(children[1].sameNode(appended)).to.be.true;
+                    expect(children[1].getText()).to.equal('Alice');
+                });
+
+                it('can put new NodeElement at the beginning', function() {
+                    var c = canvas.fromXML('
'),
+                        prepended = c.doc().prepend({tag: 'header', klass: 'some.class'}),
+                        children = c.doc().children();
+
+                    expect(children).to.have.length(2);
+                    expect(children[0].sameNode(prepended)).to.be.true;
+                });
+
+                it('can put new TextElement at the beginning', function() {
+                    var c = canvas.fromXML('
'),
+                        prepended = c.doc().prepend({text: 'Alice'}),
+                        children = c.doc().children();
+
+                    expect(children).to.have.length(2)
+                    expect(children[0].sameNode(prepended)).to.be.true;
                     expect(children[0].getText()).to.equal('Alice');
                 });
 
@@ -388,6 +473,69 @@ describe('Canvas', function() {
                     expect(children[1]).to.be.instanceOf(documentElement.DocumentTextElement);
                     expect(children[1].getText()).to.equal('Alice');
                 });
+
+                it('can divide DocumentTextElement with a new DocumentNodeElement', function() {
+                    var c = canvas.fromXML('
'),
+                        section = c.doc(),
+                        text = section.children()[0];
+
+                    var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 5}),
+                        sectionChildren = section.children(),
+                        lhsText = sectionChildren[0],
+                        rhsText = sectionChildren[2];
+
+                    expect(lhsText.getText()).to.equal('Alice');
+                    expect(returned.sameNode(sectionChildren[1]));
+                    expect(rhsText.getText()).to.equal(' has a cat');
+                });
+
+                it('treats dividing DocumentTextElement at the very end as appending after it', function() {
+                    var c = canvas.fromXML('
'),
+                        section = c.doc(),
+                        text = section.children()[0];
+
+                    var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 15}),
+                        sectionChildren = section.children(),
+                        textElement = sectionChildren[0],
+                        nodeElement = sectionChildren[1];
+
+                    expect(sectionChildren.length).to.equal(2);
+                    expect(textElement.getText()).to.equal('Alice has a cat');
+                    expect(returned.sameNode(nodeElement)).to.be.true;
+                    expect(nodeElement.getWlxmlTag()).to.equal('aside');
+                });
+
+                it('treats dividing DocumentTextElement at the very beginning as appending before it', function() {
+                    var c = canvas.fromXML('
'),
+                        section = c.doc(),
+                        text = section.children()[0];
+
+                    var returned = text.divide({tag: 'aside', klass: 'footnote', offset: 0}),
+                        sectionChildren = section.children(),
+                        nodeElement = sectionChildren[0],
+                        textElement = sectionChildren[1];
+                        
+                    expect(sectionChildren.length).to.equal(2);
+                    expect(textElement.getText()).to.equal('Alice has a cat');
+                    expect(returned.sameNode(nodeElement)).to.be.true;
+                    expect(nodeElement.getWlxmlTag()).to.equal('aside');
+                });
+            });
+
+            describe('Removing elements', function() {
+                it('merges left and right DocumentTextElement sibling of a detached DocumentNodeElement', function() {
+                    var c = canvas.fromXML('
'),
+                        section = c.doc(),
+                        div = section.children()[1];
+
+                    div.detach();
+
+                    var sectionChildren = section.children(),
+                        textElement = sectionChildren[0];
+
+                    expect(sectionChildren).to.have.length(1);
+                    expect(textElement.getText()).to.equal('Alicea cat');
+                });
             });
 
             describe('Splitting text', function() {
@@ -568,10 +716,76 @@ describe('Canvas', function() {
 
                     expect(wrapperChildren[2].getText()).to.equal(' cat');
                 });
+
+                it('wraps multiple sibling Elements', function() {
+                    var c = canvas.fromXML('
'),
+                        section = c.doc(),
+                        aliceText = section.children()[0],
+                        firstDiv = section.children()[1],
+                        lastDiv = section.children()[section.children().length -1];
+
+                    var returned = c.wrapElements({
+                            element1: aliceText,
+                            element2: lastDiv,
+                            _with: {tag: 'header'}
+                        });
+
+                    var sectionChildren = section.children(),
+                        header = sectionChildren[0],
+                        headerChildren = header.children();
+
+                    expect(sectionChildren).to.have.length(1);
+                    expect(header.sameNode(returned)).to.equal(true, 'wrapper returned');
+                    expect(headerChildren).to.have.length(3);
+                    expect(headerChildren[0].sameNode(aliceText)).to.equal(true, 'first node wrapped');
+                    expect(headerChildren[1].sameNode(firstDiv)).to.equal(true, 'second node wrapped');
+                    expect(headerChildren[2].sameNode(lastDiv)).to.equal(true, 'third node wrapped');
+                });
+                it('wraps multiple sibling Elements - middle case', function() {
+                    var c = canvas.fromXML('
'),
+                        section = c.doc(),
+                        div1 = section.children()[0],
+                        div2 = section.children()[1],
+                        div3 = section.children()[2],
+                        div4 = section.children()[3];
+
+                    var returned = c.wrapElements({
+                            element1: div2,
+                            element2: div3,
+                            _with: {tag: 'header'}
+                        });
+
+                    var sectionChildren = section.children(),
+                        header = sectionChildren[1],
+                        headerChildren = header.children();
+
+                    expect(sectionChildren).to.have.length(3);
+                    expect(headerChildren).to.have.length(2);
+                    expect(headerChildren[0].sameNode(div2)).to.equal(true, 'first node wrapped');
+                    expect(headerChildren[1].sameNode(div3)).to.equal(true, 'second node wrapped');
+                });
             });
 
-            describe('unwrapping', function() {
-                it('unwraps DocumentTextElement from its parent DocumentNodeElement if it\'s its only child', function() {
+            describe('unwrapping DocumentTextElement from its parent DocumentNodeElement if it\'s its only child', function() {
+                it('unwraps text element from its parent and stays between its old parent siblings', function() {
+                    var c = canvas.fromXML('
'),
+                        section = c.doc(),
+                        sectionChildren = section.children(),
+                        divAlice = sectionChildren[0],
+                        divHas = sectionChildren[1],
+                        textHas = divHas.children()[0],
+                        divCat = sectionChildren[2];
+
+                    var newTextContainer = textHas.unwrap(),
+                        sectionChildren = section.children();
+
+                    expect(sectionChildren[0].sameNode(divAlice)).to.equal(true, 'divAlice ok');
+                    expect(newTextContainer.sameNode(section)).to.equal(true, 'unwrap returns new text parent DocumentNodeElement');
+                    expect(sectionChildren[1].getText()).to.equal('has');
+                    expect(sectionChildren[2].sameNode(divCat)).to.equal(true, 'divCat ok');
+
+                });
+                it('unwraps and join with its old parent adjacent text elements ', function() {
                     var c = canvas.fromXML('
'),
                     section = c.doc(),
                     text = section.children()[1].children()[0];
@@ -581,7 +795,20 @@ describe('Canvas', function() {
                     expect(section.children().length).to.equal(1, 'section has one child');
                     expect(section.children()[0].getText()).to.equal('Alice has a cat');
                     expect(newTextContainer.sameNode(c.doc())).to.equal(true, 'unwrap returns new text parent DocumentNodeElement');
-                })
+                });
+
+                it('unwraps text element from its parent - first child case', function() {
+                    var c = canvas.fromXML('
'),
+                        section = c.doc(),
+                        span = section.children()[0];
+
+                    span.children()[0].unwrap();
+
+                    var sectionChildren = section.children();
+
+                    expect(sectionChildren).to.have.length(1);
+                    expect(sectionChildren[0].getText()).to.equal('Sometext');
+                });
             });
         });
 
@@ -981,6 +1208,15 @@ describe('Canvas', function() {
 
         var getSelection;
 
+        var findTextNode = function(inside, text) {
+            var nodes = inside.find(':not(iframe)').addBack().contents().filter(function() {
+                return this.nodeType === Node.TEXT_NODE && this.data === text;
+            });
+            if(nodes.length)
+                return nodes[0];
+            return null;
+        }
+
         beforeEach(function() {
             getSelection = sinon.stub(window, 'getSelection');
         });
@@ -992,7 +1228,7 @@ describe('Canvas', function() {
         it('returns position when browser selection collapsed', function() {
             var c = canvas.fromXML('
'),
                 dom = c.doc().dom(),
-                text = $(dom.contents()[0]).contents()[0];
+                text = findTextNode(dom, 'Alice has a cat');
 
             expect(text.nodeType).to.equal(Node.TEXT_NODE, 'correct node selected');
             expect($(text).text()).to.equal('Alice has a cat');
@@ -1027,9 +1263,9 @@ describe('Canvas', function() {
             var c = canvas.fromXML('
'),
                 dom = c.doc().dom(),
                 text = {
-                    alice: dom.contents()[0],
-                    has: $(dom.contents()[1]).contents()[0],
-                    cat: dom.contents()[4]
+                    alice: findTextNode(dom, 'Alice '),
+                    has: findTextNode(dom, 'has'),
+                    cat: findTextNode(dom, ' cat')
                 },
                 cursor = c.getCursor(),
                 aliceElement = c.getDocumentElement(text.alice),
@@ -1060,11 +1296,11 @@ describe('Canvas', function() {
             var c = canvas.fromXML('
'),
                 dom = c.doc().dom(),
                 text = {
-                    alice: dom.contents()[0],
-                    has: $(dom.contents()[1]).contents()[0],
-                    a: dom.contents()[2],
-                    big: $(dom.contents()[3]).contents()[0],
-                    cat: dom.contents()[4]
+                    alice: findTextNode(dom, 'Alice '),
+                    has: findTextNode(dom, 'has'),
+                    a: findTextNode(dom, ' a '),
+                    big: findTextNode(dom, 'big'),
+                    cat: findTextNode(dom, ' cat'),
                 },
                 cursor = c.getCursor();
 
@@ -1108,7 +1344,33 @@ describe('Canvas', function() {
 
             expect($xmlOut.attr('a')).to.equal('1');
             expect($xmlOut.attr('xmlns:dcterms')).to.equal('http://purl.org/dc/terms/');
+        });
+
+        it('doesn\' serialize meta attribute if its empty', function() {
+            var c;
+
+            c = canvas.fromXML('
');
+            c.doc().setWlxmlMetaAttr('uri', '');
+            expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'overriding attribute with zero length string');
+
+            c = canvas.fromXML('
');
+            c.doc().setWlxmlMetaAttr('uri', '');
+            expect($(c.toXML()).attr('meta-uri')).to.equal(undefined, 'setting attribute to zero length string');
+        });
 
+        describe('output xml', function() {
+            it('keeps entities intact', function() {
+                var xmlIn = '
',
+                    c = canvas.fromXML(xmlIn),
+                    xmlOut = c.toXML();
+                expect(xmlOut).to.equal(xmlIn);
+            });
+            it('keeps entities intact when they form html/xml', function() {
+                var xmlIn = '
',
+                    c = canvas.fromXML(xmlIn),
+                    xmlOut = c.toXML();
+                expect(xmlOut).to.equal(xmlIn);
+            });
         });
 
         describe('formatting output xml', function() {
@@ -1133,8 +1395,9 @@ describe('Canvas', function() {
 
             it('keeps white space between XML nodes - inline case', function() {
                 var xmlIn = '
',
-                c = canvas.fromXML(xmlIn),
-                xmlOut = c.toXML();
+                c = canvas.fromXML(xmlIn);
+                
+                var xmlOut = c.toXML();
 
                 var partsIn = xmlIn.split('\n\n\n'),
                     partsOut = xmlOut.split('\n\n\n');
@@ -1142,6 +1405,14 @@ describe('Canvas', function() {
                 expect(partsIn).to.deep.equal(partsOut);
             });
 
+            it('keeps white space at the beginning of text', function() {
+                var xmlIn = '
',
+                    c = canvas.fromXML(xmlIn),
+                    xmlOut = c.toXML();
+
+                expect(xmlOut).to.equal(xmlIn);
+            });
+
             it('nests new children block elements', function() {
                 var c = canvas.fromXML('
');
     
@@ -1162,6 +1433,68 @@ describe('Canvas', function() {
                 expect(xmlOut).to.equal('
');
             });
 
+            it('keeps original white space at the end of text', function() {
+                
+                var xmlIn = '
    Some text ended with white space \
+                \
+                Some text some text\
+            \
+            ',
+                    c = canvas.fromXML(xmlIn);
+
+            var xmlOut = c.toXML();
+            console.log(xmlOut);
+            expect(xmlOut).to.equal(xmlIn);
+            });
+
+            it('keeps white space around text node', function() {
+                var xmlIn = '
\
+                \
+                Some text surrounded by white space\
+                \
+            ',
+                    c = canvas.fromXML(xmlIn);
+
+                var xmlOut = c.toXML();
+                expect(xmlOut).to.equal(xmlIn);
+            });
+
+            it('keeps white space around text node - last node case', function() {
+                var xmlIn = '
\
+                \
+                    \
+                Some text surrounded by white space\
+                    \
+            ',
+                    c = canvas.fromXML(xmlIn);
+
+                var xmlOut = c.toXML();
+                expect(xmlOut).to.equal(xmlIn);
+            });
+
+            it('keeps white space after detaching text element', function() {
+                var xmlIn = '
\n\
+                    \n\
+                text1\n\
+                    \n\
+            ',
+                    expectedXmlOut = '
',
+                    c = canvas.fromXML(xmlIn),
+                    children = c.doc().children(),
+                    text = children[children.length-1];
+                
+                expect(text.getText()).to.equal('text1');
+
+                text.detach();
+
+                var xmlOut = c.toXML();
+                expect(xmlOut).to.equal(expectedXmlOut);
+            });
+
         })
     })
 });