+ 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('smoke tests nested transformations', function() {
+ var doc = getDocumentFromXML('<div></div>');
+
+ doc.registerExtension({elementNode: {transformations: {
+ nested: function(v) {
+ this._$.attr('innerAttr', v);
+ },
+ outer: function(v) {
+ this.nested(v);
+ this._$.attr('outerAttr', v);
+ }
+ }}});
+
+ doc.root.outer('test1');
+ doc.root.outer('test2');
+
+ expect(doc.root.getAttr('innerAttr')).to.equal('test2');
+ expect(doc.root.getAttr('outerAttr')).to.equal('test2');
+
+ doc.undo();
+
+ expect(doc.root.getAttr('innerAttr')).to.equal('test1');
+ expect(doc.root.getAttr('outerAttr')).to.equal('test1');
+
+ doc.undo();
+
+ expect(doc.root.getAttr('innerAttr')).to.equal(undefined);
+ expect(doc.root.getAttr('outerAttr')).to.equal(undefined);
+
+ doc.redo();
+
+ expect(doc.root.getAttr('innerAttr')).to.equal('test1');
+ expect(doc.root.getAttr('outerAttr')).to.equal('test1');
+
+ doc.redo();
+
+ expect(doc.root.getAttr('innerAttr')).to.equal('test2');
+ expect(doc.root.getAttr('outerAttr')).to.equal('test2');
+
+ });
+ });