+ describe('Extension API', function() {
+ var doc, extension, elementNode, textNode, testClassNode;
+
+ beforeEach(function() {
+ doc = getDocumentFromXML('<section>Alice<div class="test_class"></div></section>');
+ elementNode = doc.root;
+ textNode = doc.root.contents()[0];
+ extension = {};
+
+ expect(function() {
+ elementNode.transform('testTransformation');
+ }).to.throw(Error);
+ expect(function() {
+ textNode.transform('testTransformation');
+ }).to.throw(Error);
+ expect(function() {
+ doc.testTransformation();
+ }).to.throw(Error);
+ expect(doc.testMethod).to.be.undefined;
+ expect(elementNode.testMethod).to.be.undefined;
+ expect(textNode.testMethod).to.be.undefined;
+ });
+
+ it('allows adding method to a document', function() {
+ extension = {document: {methods: {
+ testMethod: function() { return this; }
+ }}};
+
+ doc.registerExtension(extension);
+ expect(doc.testMethod()).to.equal(doc, 'context is set to a document instance');
+ });
+
+ it('allows adding transformation to a document', function() {
+ extension = {document: {transformations: {
+ testTransformation: function() { return this; },
+ testTransformation2: {impl: function() { return this;}}
+ }}};
+
+ doc.registerExtension(extension);
+ expect(doc.testTransformation()).to.equal(doc, 'context is set to a document instance');
+ expect(doc.testTransformation2()).to.equal(doc, 'context is set to a document instance');
+ });
+
+ it('allows adding method to a DocumentNode instance', function() {
+ extension = {documentNode: {methods: {
+ testMethod: function() { return this; }
+ }}};
+
+ doc.registerExtension(extension);
+
+ /* refresh */
+ elementNode = doc.root;
+ textNode = doc.root.contents()[0];
+
+ expect(elementNode.testMethod().sameNode(elementNode)).to.equal(true, 'context is set to a node instance');
+ expect(textNode.testMethod().sameNode(textNode)).to.equal(true, 'context is set to a node instance');
+ });
+
+ it('allows adding transformation to a DocumentNode', function() {
+ extension = {documentNode: {transformations: {
+ testTransformation: function() { return this; },
+ testTransformation2: {impl: function() { return this;}}
+ }}};
+
+ doc.registerExtension(extension);
+
+ /* refresh */
+ elementNode = doc.root;
+ textNode = doc.root.contents()[0];
+
+ expect(elementNode.testTransformation().sameNode(elementNode)).to.equal(true, '1');
+ expect(elementNode.testTransformation2().sameNode(elementNode)).to.equal(true, '2');
+ expect(textNode.testTransformation().sameNode(textNode)).to.equal(true, '3');
+ expect(textNode.testTransformation2().sameNode(textNode)).to.equal(true, '4');
+ });
+ });
+