From: Aleksander Ɓukasz Date: Sat, 7 Dec 2013 23:28:20 +0000 (+0100) Subject: smartxml: testing three available levels of transformation undo-awareness X-Git-Url: https://git.mdrn.pl/fnpeditor.git/commitdiff_plain/7509ad5d22654faa0abd75465de9f3fa632b1f3a?ds=sidebyside smartxml: testing three available levels of transformation undo-awareness --- diff --git a/src/smartxml/smartxml.test.js b/src/smartxml/smartxml.test.js index 991f1af..0bf5dd5 100644 --- a/src/smartxml/smartxml.test.js +++ b/src/smartxml/smartxml.test.js @@ -1060,6 +1060,99 @@ describe('smartxml', function() { expect(textNode.getText()).to.equal('Alice h'); }); + + var sampleMethod = function(val) { + this._$.attr('x', val); + }; + + var transformations = { + 'unaware': sampleMethod, + 'returning change root': { + impl: sampleMethod, + getChangeRoot: function() { + return this.context; + } + }, + 'implementing undo operation': { + impl: function(t, val) { + t.oldVal = this.getAttr('x'); + sampleMethod.call(this, val); + }, + undo: function(t) { + this.setAttr('x', t.oldVal); + } + } + }; + + _.pairs(transformations).forEach(function(pair) { + var name = pair[0], + transformaton = pair[1]; + + describe(name + ' transformation: ', function() { + var doc, node, nodePath; + + beforeEach(function() { + doc = getDocumentFromXML('
'); + + doc.registerExtension({elementNode: {transformations: { + test: transformaton + }}}); + + node = doc.root.contents()[0]; + nodePath = node.getPath(); + }); + + it('transforms as expected', function() { + node.test('new'); + expect(node.getAttr('x')).to.equal('new'); + }); + + it('can be undone', function() { + node.test('new'); + doc.undo(); + node = doc.getNodeByPath(nodePath); + expect(node.getAttr('x')).to.equal('old'); + }); + + it('can be undone and then redone', function() { + node.test('new'); + doc.undo(); + doc.redo(); + node = doc.getNodeByPath(nodePath); + expect(node.getAttr('x')).to.equal('new'); + }); + + it('handles a sample scenario', function() { + doc.root.contents()[0].test('1'); + doc.root.contents()[0].test('2'); + doc.root.contents()[0].test('3'); + doc.root.contents()[0].test('4'); + doc.root.contents()[0].test('5'); + + expect(doc.root.contents()[0].getAttr('x')).to.equal('5', 'after initial transformations'); + doc.undo(); + expect(doc.root.contents()[0].getAttr('x')).to.equal('4', 'undo 1.1'); + doc.undo(); + expect(doc.root.contents()[0].getAttr('x')).to.equal('3', 'undo 1.2'); + doc.redo(); + expect(doc.root.contents()[0].getAttr('x')).to.equal('4', 'redo 1.1'); + doc.redo(); + expect(doc.root.contents()[0].getAttr('x')).to.equal('5', 'redo 1.2'); + doc.undo(); + expect(doc.root.contents()[0].getAttr('x')).to.equal('4', 'undo 2.1'); + doc.root.contents()[0].test('10'); + expect(doc.root.contents()[0].getAttr('x')).to.equal('10', 'additional transformation'); + expect(doc.redoStack.length).to.equal(0, 'transformation cleared redo stack'); + doc.redo(); + expect(doc.root.contents()[0].getAttr('x')).to.equal('10', 'empty redoStack so redo was noop'); + doc.undo(); + expect(doc.root.contents()[0].getAttr('x')).to.equal('4', 'undoing additional transformation'); + doc.redo() + expect(doc.root.contents()[0].getAttr('x')).to.equal('10', 'redoing additional transformation'); + }); + }); + }); + // it('does work', function() { // var doc = getDocumentFromXML('
Alice
'), // span = doc.root.contents()[0];