X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/8f3efc2235f836dd2b624d569d97a7ae0dad77ff..5766035cdc88ebe92caab7af494e5e077235d5e0:/src/editor/plugins/core/core.test.js

diff --git a/src/editor/plugins/core/core.test.js b/src/editor/plugins/core/core.test.js
index 940e22e..f227b67 100644
--- a/src/editor/plugins/core/core.test.js
+++ b/src/editor/plugins/core/core.test.js
@@ -1,13 +1,22 @@
 define(function(require) {
     
 'use strict';
-/* globals describe, it */
 
-var chai = require('libs/chai'),
+/* globals describe, it, afterEach */
+
+var $ = require('libs/jquery'),
+    _ = require('libs/underscore'),
+    chai = require('libs/chai'),
+    sinon = require('libs/sinon'),
     wlxml = require('wlxml/wlxml'),
+    canvas = require('modules/documentCanvas/canvas/canvas'),
+    keyboard = require('modules/documentCanvas/canvas/keyboard'),
+    keyEvent = require('modules/documentCanvas/canvas/keyEvent'),
     corePlugin = require('./core.js'),
     expect = chai.expect;
 
+var K = keyboard.KEYS;
+
 var getDocumentFromXML = function(xml, options) {
     var doc = wlxml.WLXMLDocumentFromXML(xml, options || {});
     doc.registerExtension(corePlugin.documentExtension);
@@ -15,6 +24,62 @@ var getDocumentFromXML = function(xml, options) {
 };
 
 
+var getCanvasFromXML = function(xml, elements) {
+    var c = canvas.fromXMLDocument(getDocumentFromXML(xml), elements),
+        view = c.view();
+    view.attr('canvas-test', true);
+    /* globals document */
+    $(document.body).append(view);
+    return c;
+};
+var removeCanvas = function() {
+    $('[canvas-test]').remove();
+};
+
+var getTextNodes = function(text, doc) {
+    /* globals Node */
+    var toret = [];
+    var search = function(node) {
+        node.contents().forEach(function(node) {
+            if(node.nodeType === Node.TEXT_NODE) {
+                if(node.getText() === text) {
+                    toret.push(node);
+                }
+            } else {
+                search(node);
+            }
+        });
+    };
+    search(doc.root);
+    return toret;
+};
+
+var getTextNode = function(text, doc) {
+    var nodes = getTextNodes(text, doc),
+        error;
+    if(nodes.length === 0) {
+        error = 'Text not found';
+    } else if(nodes.length > 1) {
+        error = 'Text not unique';
+    } else if(nodes[0].getText() !== text) {
+        error = 'I was trying to cheat your test :(';
+    }
+    if(error) {
+        throw new Error(error);
+    }
+    return nodes[0];
+};
+
+var getTextElement = function(text, c) {
+    var node = getTextNode(text, c.wlxmlDocument),
+        element =  node && node.getData('canvasElement');
+    if(!(element && element.getText() === text)) {
+        throw new Error();
+    }
+    return element;
+};
+
+
 describe('Document extensions', function() {
     describe('break content', function() {
         it('break text into two nodes', function() {
@@ -53,6 +118,632 @@ describe('Document extensions', function() {
             expect(result.emptyText.getText()).to.equal('');
         });
     });
+
+    describe('mergin text with preceding content', function() {
+        it('does nothing if text node parent has no preceding element', function() {
+            var doc = getDocumentFromXML('<section><div><div>some text</div></div></section>'),
+                text = getTextNode('some text', doc),
+                spy = sinon.spy();
+
+            doc.on('change', spy);
+            text.mergeContentUp();
+            expect(spy.callCount).to.equal(0);
+        });
+        it('does nothing if text node parent is precedeed by text node', function() {
+            var doc = getDocumentFromXML('<section><div></div>another text<div>some text</div></section>'),
+                text = getTextNode('some text', doc),
+                spy = sinon.spy();
+
+            doc.on('change', spy);
+            text.mergeContentUp();
+            expect(spy.callCount).to.equal(0);
+        });
+        it('does nothing if text node is not first child of its parent', function() {
+            var doc = getDocumentFromXML('<section><div></div><div><a></a>some text</div></section>'),
+                text = getTextNode('some text', doc),
+                spy = sinon.spy();
+
+            doc.on('change', spy);
+            text.mergeContentUp();
+            expect(spy.callCount).to.equal(0);
+        });
+        it('moves text node and its siblings to the block element preceding text node parent', function() {
+            var doc = getDocumentFromXML('<section><div></div><div>some text<span>is</span> here!</div></section>'),
+                text = getTextNode('some text', doc);
+            
+            text.mergeContentUp();
+            
+            var contents = doc.root.contents();
+            expect(contents.length).to.equal(1);
+            expect(contents[0].contents().length).to.equal(3);
+            expect(contents[0].contents()[0].getText()).to.equal('some text');
+            expect(contents[0].contents()[1].getTagName()).to.equal('span');
+            expect(contents[0].contents()[2].getText()).to.equal(' here!');
+        });
+    });
+});
+
+describe('Keyboard interactions', function() {
+
+    var Keyboard = function(canvas) {
+        this.canvas = canvas;
+    };
+
+    _.extend(Keyboard.prototype, {
+        press: function(key) {
+            this.canvas.triggerKeyEvent(keyEvent.fromParams({key:key}), this.selection);
+            this.selection = this.canvas.getSelection();
+            return this;
+        },
+        withCaret: function(where) {
+            var offset = where.indexOf('|'),
+                text = where.split('|').join(''),
+                el = getTextElement(text, this.canvas),
+                selection = this.canvas.createSelection({type: 'caret', element: el, offset: offset});
+            if(offset === -1) {
+                throw new Error('Invalid caret');
+            }
+            this.selection = selection;
+            return this;
+        },
+        withSelection: function(start, end) {
+            var startOffset = start.indexOf('|'),
+                endOffset = end.indexOf('|'),
+                startText= start.split('|').join(''),
+                endText = end.split('|').join(''),
+                startElement = getTextElement(startText, this.canvas),
+                endElement = getTextElement(endText, this.canvas),
+                selection = this.canvas.createSelection({
+                    type: 'textSelection', 
+                    anchorElement: startElement,
+                    anchorOffset: startOffset,
+                    focusElement: endElement,
+                    focusOffset: endOffset
+                });
+            if(startOffset === -1 || endOffset === -1) {
+                throw new Error('Invalid text selection');
+            }
+            this.selection = selection;
+            return this;    
+        }
+    });
+
+    describe('deleting text with selection', function() {
+        afterEach(removeCanvas);
+
+        [K.BACKSPACE, K.DELETE].forEach(function(key) {
+            it('deletes text withing a single text element ' + key, function() {
+                var c = getCanvasFromXML('<section><div>Alice</div></section>'),
+                    k = new Keyboard(c);
+
+                k.withSelection('A|lice', 'Alic|e').press(key);
+                expect(c.wlxmlDocument.root.contents()[0].contents()[0].getText()).to.equal('Ae');
+
+
+                var selection = c.getSelection();
+                expect(selection.type).to.equal('caret');
+                expect(selection.element.getText()).to.equal('Ae');
+                expect(selection.offset).to.equal(1);
+            });
+            it('deletes text across two paragraphs ' + key, function() {
+                var c = getCanvasFromXML('<section><div class="p">Alice</div><div class="p">cat</div></section>'),
+                    k = new Keyboard(c);
+
+                k.withSelection('A|lice', 'c|at').press(key);
+                var rootContents = c.wlxmlDocument.root.contents();
+
+                expect(rootContents.length).to.equal(2);
+                expect(rootContents[0].contents()[0].getText()).to.equal('A');
+                expect(rootContents[1].contents()[0].getText()).to.equal('at');
+
+                var selection = c.getSelection();
+                expect(selection.type).to.equal('caret');
+                expect(selection.element.wlxmlNode.getText()).to.equal(key === K.BACKSPACE ? 'A' : 'at');
+            });
+
+            it('keeps an empty paragraph after deleting its whole text ' + key, function() {
+                var c = getCanvasFromXML('<section><div class="p">Alice</div></section>'),
+                    k = new Keyboard(c);
+
+                k.withSelection('|Alice', 'Alice|').press(key);
+                var rootContents = c.wlxmlDocument.root.contents();
+
+                expect(rootContents.length).to.equal(1);
+                expect(rootContents[0].contents()[0].getText()).to.equal('');
+                
+                var selection = c.getSelection();
+                expect(selection.type).to.equal('caret');
+                expect(selection.element.wlxmlNode.parent().sameNode(c.wlxmlDocument.root.contents()[0]));
+            });
+        });
+
+    });
+
+
+    describe('backspace at the beginning of a block', function() {
+        afterEach(removeCanvas);
+
+        it('merges two adjacent paragraphs', function() {
+            var c = getCanvasFromXML('<section><div class="p">A</div><div class="p">B</div></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|B').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(1);
+            expect(rootContents[0].getClass()).to.equal('p');
+            expect(rootContents[0].contents()[0].getText()).to.equal('AB');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('AB', c))).to.equal(true);
+            expect(selection.offset).to.equal(1);
+        });
+        it('merges a paragraph with a header', function() {
+            var c = getCanvasFromXML('<section><header>A</header><div class="p">B</div></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|B').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(1);
+            expect(rootContents[0].getTagName()).to.equal('header');
+            expect(rootContents[0].contents()[0].getText()).to.equal('AB');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('AB', c))).to.equal(true);
+            expect(selection.offset).to.equal(1);
+        });
+        it('merges two adjacent headers', function() {
+            var c = getCanvasFromXML('<section><header>A</header><header>B</header></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|B').press(K.BACKSPACE);
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(1);
+            expect(rootContents[0].getTagName()).to.equal('header');
+            expect(rootContents[0].contents()[0].getText()).to.equal('AB');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('AB', c))).to.equal(true);
+            expect(selection.offset).to.equal(1);
+        });
+        it('merges a header with a paragraph', function() {
+            var c = getCanvasFromXML('<section><div class="p">A</div><header>B</header></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|B').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(1);
+            expect(rootContents[0].is('p')).to.equal(true);
+            expect(rootContents[0].contents()[0].getText()).to.equal('AB');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('AB', c))).to.equal(true);
+            expect(selection.offset).to.equal(1);
+        });
+        it('merges a paragraph into a last list item', function() {
+            var c = getCanvasFromXML('<section><div class="list"><div class="item">item</div></div><div class="p">paragraph</div></section>'),
+                list = c.wlxmlDocument.root.contents()[0],
+                k = new Keyboard(c);
+
+            k.withCaret('|paragraph').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(1);
+            expect(rootContents[0].sameNode(list)).to.equal(true);
+
+            var items = list.contents();
+            expect(items.length).to.equal(1);
+            expect(items[0].contents()[0].getText()).to.equal('itemparagraph');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('itemparagraph', c))).to.equal(true);
+            expect(selection.offset).to.equal(4);
+        });
+        it('merges a list item with a list item', function() {
+            var c = getCanvasFromXML('<section><div class="list"><div class="item">item1</div><div class="item">item2</div></div></section>'),
+                list = c.wlxmlDocument.root.contents()[0],
+                k = new Keyboard(c);
+
+            k.withCaret('|item2').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(1);
+            
+            expect(rootContents[0].sameNode(list)).to.equal(true);
+
+            var items = list.contents();
+
+            expect(items.length).to.equal(1);
+            expect(items[0].contents()[0].getText()).to.equal('item1item2');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('item1item2', c))).to.equal(true);
+            expect(selection.offset).to.equal(5);
+        });
+        it('creates a new paragraph preceding the list from a first list item', function() {
+            var c = getCanvasFromXML('<section><div class="list"><div class="item">item1</div><div class="item">item2</div></div></section>'),
+                list = c.wlxmlDocument.root.contents()[0],
+                k = new Keyboard(c);
+
+            k.withCaret('|item1').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            
+            expect(rootContents[0].getClass()).to.equal('p');
+            expect(rootContents[0].contents()[0].getText()).to.equal('item1');
+
+            expect(rootContents[1].sameNode(list)).to.equal(true);
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('item1', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+        it('removes list after moving up its only item', function() {
+            var c = getCanvasFromXML('<section><div class="list"><div class="item">item</div></div></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|item').press(K.BACKSPACE);
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(1);
+            
+            expect(rootContents[0].getClass()).to.equal('p');
+            expect(rootContents[0].contents()[0].getText()).to.equal('item');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('item', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+    });
+
+    describe('backspace at the beginning of a span', function() {
+        afterEach(removeCanvas);
+
+        it('deletes span if it contains only one character', function() {
+            var c = getCanvasFromXML('<section>Alice<span class="emp">h</span>a cat</section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('h|').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(1);
+            expect(rootContents[0].getText()).to.equal('Alicea cat');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('Alicea cat', c))).to.equal(true);
+            expect(selection.offset).to.equal(5);
+        });
+
+        it('deletes from the end of the preceding text element', function() {
+            var c = getCanvasFromXML('<section>Alice<span>has a cat</span></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|has a cat').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            expect(rootContents[0].getText()).to.equal('Alic');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('has a cat', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+
+        it('deletes from the end of the preceding text element - multiple spans', function() {
+            var c = getCanvasFromXML('<section>Alice<span><span>has a cat</span></span></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|has a cat').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            expect(rootContents[0].getText()).to.equal('Alic');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('has a cat', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+
+        it('deletes from the end of the preceding span element content', function() {
+            var c = getCanvasFromXML('<section><span>Alice</span><span>has a cat</span></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|has a cat').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            expect(rootContents[0].is({tagName: 'span'})).to.equal(true);
+            expect(rootContents[0].contents()[0].getText()).to.equal('Alic');
+
+            expect(rootContents[1].contents()[0].getText()).to.equal('has a cat');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('has a cat', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+
+        it('deletes from the end of the preceding span element content - multiple spans', function() {
+            var c = getCanvasFromXML('<section><span>Alice</span><span><span>has a cat</span></span></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|has a cat').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            expect(rootContents[0].is({tagName: 'span'})).to.equal(true);
+            expect(rootContents[0].contents()[0].getText()).to.equal('Alic');
+
+            var outerSpan = rootContents[1];
+            expect(outerSpan.is({tagName: 'span'})).to.equal(true);
+
+            var innerSpan = outerSpan.contents()[0];
+            expect(innerSpan.contents()[0].getText()).to.equal('has a cat');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('has a cat', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+
+        it('merges two paragrahps if span is a first content of the second paragraph', function() {
+            var c = getCanvasFromXML('<section><div class="p">para</div><div class="p"><span>Alice</span> has a cat</div></section>'),
+                k = new Keyboard(c);
+            
+            k.withCaret('|Alice').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+
+            expect(rootContents.length).to.equal(1, 'single paragraph left');
+
+            var p = rootContents[0],
+                pContents = p.contents();
+
+            expect(p.is('p')).to.equal(true);
+
+            expect(pContents.length).to.equal(3);
+            expect(pContents[0].getText()).to.equal('para');
+            expect(pContents[1].contents().length).to.equal(1);
+            expect(pContents[1].contents()[0].getText()).to.equal('Alice');
+
+            expect(pContents[2].getText()).to.equal(' has a cat');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('Alice', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+    });
+
+    describe('backspace before a span', function() {
+        it('deletes from the end of a span', function() {
+            var c = getCanvasFromXML('<section><span>Alice</span>has a cat</section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|has a cat').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            expect(rootContents[0].is({tagName: 'span'})).to.equal(true);
+            expect(rootContents[0].contents()[0].getText()).to.equal('Alic');
+            expect(rootContents[1].getText()).to.equal('has a cat');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('has a cat', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+        it('deletes span if it contains only one character', function() {
+            var c = getCanvasFromXML('<section>Alice <span>h</span> a cat</section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('| a cat').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(1);
+            expect(rootContents[0].getText()).to.equal('Alice  a cat');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('Alice  a cat', c))).to.equal(true);
+            expect(selection.offset).to.equal(6);
+        });
+    });
+
+    describe('splitting with enter', function() {
+        afterEach(removeCanvas);
+
+        it('splits paragraph into two in the middle', function() {
+            var c = getCanvasFromXML('<section><div class="p">paragraph</div></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('para|graph').press(K.ENTER);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            expect(rootContents[0].is({tagName: 'div', klass: 'p'})).to.equal(true);
+            expect(rootContents[0].contents()[0].getText()).to.equal('para');
+            expect(rootContents[1].is({tagName: 'div', klass: 'p'})).to.equal(true);
+            expect(rootContents[1].contents()[0].getText()).to.equal('graph');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('graph', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+        it('splits paragraph into two at the beginning', function() {
+            var c = getCanvasFromXML('<section><div class="p">paragraph</div></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('|paragraph').press(K.ENTER);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            expect(rootContents[0].is({tagName: 'div', klass: 'p'})).to.equal(true);
+            expect(rootContents[0].contents()[0].getText()).to.equal('');
+            expect(rootContents[1].is({tagName: 'div', klass: 'p'})).to.equal(true);
+            expect(rootContents[1].contents()[0].getText()).to.equal('paragraph');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+        it('splits paragraph into two at the end', function() {
+            var c = getCanvasFromXML('<section><div class="p">paragraph</div></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('paragraph|').press(K.ENTER);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            expect(rootContents[0].is({tagName: 'div', klass: 'p'})).to.equal(true);
+            expect(rootContents[0].contents()[0].getText()).to.equal('paragraph');
+            expect(rootContents[1].is({tagName: 'div', klass: 'p'})).to.equal(true);
+            expect(rootContents[1].contents()[0].getText()).to.equal('');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+
+        it('splits its parent box if inside a span', function() {
+            var c = getCanvasFromXML('<section><div class="p">this <span>is</span> a paragraph</div></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('i|s').press(K.ENTER);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+
+            expect(rootContents.length).to.equal(2);
+
+            var p1 = rootContents[0],
+                p2 = rootContents[1];
+
+            expect(p1.is({tagName: 'div', klass: 'p'})).to.equal(true);
+            expect(p2.is({tagName: 'div', klass: 'p'})).to.equal(true);
+
+            var p1Contents = p1.contents(),
+                p2Contents = p2.contents();
+
+            expect(p1Contents[0].getText()).to.equal('this ');
+            expect(p1Contents[1].is({tagName: 'span'})).to.equal(true);
+            expect(p1Contents[1].contents()[0].getText()).to.equal('i');
+
+            
+            expect(p2Contents[0].is({tagName: 'span'})).to.equal(true);
+            expect(p2Contents[0].contents()[0].getText()).to.equal('s');
+            expect(p2Contents[1].getText()).to.equal(' a paragraph');
+
+            var selection = c.getSelection();
+            expect(selection.element.sameNode(getTextElement('s', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+
+        it('splits its parent box if inside a double span', function() {
+            var c = getCanvasFromXML('<section><div class="p">this <span test="outer"><span test="inner">is</span></span> a paragraph</div></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('i|s').press(K.ENTER);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+
+            expect(rootContents.length).to.equal(2);
+
+            var p1 = rootContents[0],
+                p2 = rootContents[1];
+
+            expect(p1.is({tagName: 'div', klass: 'p'})).to.equal(true);
+            expect(p2.is({tagName: 'div', klass: 'p'})).to.equal(true);
+
+            var p1Contents = p1.contents(),
+                p2Contents = p2.contents();
+
+            /* first paragraph */
+            expect(p1Contents[0].getText()).to.equal('this ');
+            
+            var outer1 = p1Contents[1];
+            expect(outer1.getAttr('test')).to.equal('outer');
+            expect(outer1.contents().length).to.equal(1);
+            var inner1 = outer1.contents()[0];
+            expect(inner1.getAttr('test')).to.equal('inner');
+            expect(inner1.contents()[0].getText()).to.equal('i');
+
+            /* second paragraph */
+            var outer2 = p2Contents[0];
+            expect(outer2.getAttr('test')).to.equal('outer');
+            expect(outer2.contents().length).to.equal(1);
+            var inner2 = outer2.contents()[0];
+            expect(inner2.getAttr('test')).to.equal('inner');
+            expect(inner2.contents()[0].getText()).to.equal('s');
+
+            expect(p2Contents[1].getText()).to.equal(' a paragraph');
+
+            /* caret */
+            var selection = c.getSelection();
+            expect(selection.element.sameNode(getTextElement('s', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+    });
+
+    describe('Enter on a list items', function() {
+        afterEach(removeCanvas);
+
+        it('creates a paragraph after a list if hitting enter on the last and empty list item', function() {
+            var c = getCanvasFromXML('<section><div class="list"><div class="item">item</div></div></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('item|').press(K.ENTER).press(K.ENTER);
+            
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            expect(rootContents[0].is('list')).to.equal(true);
+            expect(rootContents[1].is('p')).to.equal(true);
+
+            var list = rootContents[0];
+            expect(list.contents().length).to.equal(1);
+            
+            var selection = c.getSelection();
+            expect(selection.element.wlxmlNode.sameNode(rootContents[1].contents()[0])).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+    });
+
+    describe('Deleting text from a node', function() {
+        it('deletes last character with backspace', function() {
+            var c = getCanvasFromXML('<section><div class="p">a</div><div class="p">b</div></section>'),
+                k = new Keyboard(c);
+
+            k.withCaret('b|').press(K.BACKSPACE);
+
+            var rootContents = c.wlxmlDocument.root.contents();
+            expect(rootContents.length).to.equal(2);
+            expect(rootContents[0].is({tagName: 'div', klass: 'p'})).to.equal(true);
+            expect(rootContents[0].contents()[0].getText()).to.equal('a');
+            expect(rootContents[1].is({tagName: 'div', klass: 'p'})).to.equal(true);
+            expect(rootContents[1].contents()[0].getText()).to.equal('');
+
+            var selection = c.getSelection();
+            expect(selection.type).to.equal('caret');
+            expect(selection.element.sameNode(getTextElement('', c))).to.equal(true);
+            expect(selection.offset).to.equal(0);
+        });
+    });
+
 });