+ describe('Extension API', function() {
+ var doc, extension, elementNode, textNode;
+
+ beforeEach(function() {
+ doc = getDocumentFromXML('<section>Alice<div class="test_class"></div></section>');
+ elementNode = doc.root;
+ textNode = doc.root.contents()[0];
+ extension = {};
+
+ expect(elementNode.testTransformation).to.be.undefined;
+ expect(textNode.testTransformation).to.be.undefined;
+ expect(doc.testTransformation).to.be.undefined;
+
+ expect(doc.testMethod).to.be.undefined;
+ expect(elementNode.testMethod).to.be.undefined;
+ expect(textNode.testMethod).to.be.undefined;
+ expect(elementNode.elementTestMethod).to.be.undefined;
+ expect(textNode.textTestMethod).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; }
+ }
+ },
+ textNode: {
+ methods: {
+ textTestMethod: function() { return this; }
+ }
+ },
+ elementNode: {
+ methods: {
+ elementTestMethod: 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');
+
+ expect(elementNode.elementTestMethod().sameNode(elementNode)).to.be.true;
+ expect(elementNode.textTestMethod).to.be.undefined;
+
+ expect(textNode.textTestMethod().sameNode(textNode)).to.be.true;
+ expect(textNode.elementTestMethod).to.be.undefined;
+ });
+
+ it('allows adding transformation to a DocumentNode', function() {
+ extension = {
+ documentNode: {
+ transformations: {
+ testTransformation: function() { return this; },
+ testTransformation2: {impl: function() { return this;}}
+ }
+ },
+ textNode: {
+ transformations: {
+ textTestTransformation: function() { return this; }
+ }
+ },
+ elementNode: {
+ transformations: {
+ elementTestTransformation: 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');
+
+ expect(elementNode.elementTestTransformation().sameNode(elementNode)).to.be.true;
+ expect(elementNode.textTestTransformation).to.be.undefined;
+
+ expect(textNode.textTestTransformation().sameNode(textNode)).to.be.true;
+ expect(textNode.elementTestTransfomation).to.be.undefined;
+ });
+
+ it('allows text/element node methods and transformations to access node and transormations on document node', function() {
+
+ var doc = getDocumentFromXML('<div>text</div>');
+
+ doc.registerExtension({
+ documentNode: {
+ methods: {
+ test: function() {
+ return 'super';
+ }
+ },
+ transformations: {
+ testT: function() {
+ return 'super_trans';
+ }
+ }
+ },
+ elementNode: {
+ methods: {
+ test: function() {
+ return 'element_sub_' + this.__super__.test();
+ }
+ },
+ transformations: {
+ testT: function() {
+ return 'element_trans_sub_' + this.__super__.testT();
+ }
+ }
+ },
+ textNode: {
+ methods: {
+ test: function() {
+ return 'text_sub_' + this.__super__.test();
+ }
+ },
+ transformations: {
+ testT: function() {
+ return 'text_trans_sub_' + this.__super__.testT();
+ }
+ }
+ }
+ });
+
+ var textNode = doc.root.contents()[0];
+
+ expect(doc.root.test()).to.equal('element_sub_super');
+ expect(textNode.test()).to.equal('text_sub_super');
+ expect(doc.root.testT()).to.equal('element_trans_sub_super_trans');
+ expect(textNode.testT()).to.equal('text_trans_sub_super_trans');
+ });
+ });
+