Add www integration test

test/integration/app-www-tests.js

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+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  */
+/* WWW app integration/acceptance tests (just a few sample tests, not full coverage)              */
+/*                                                                                                */
+/* These tests require www.localhost to be set in /etc/hosts.                                     */
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  */
+
+import supertest          from 'supertest';  // SuperAgent driven library for testing HTTP servers
+import { expect }         from 'chai';       // BDD/TDD assertion library
+import { JSDOM as JsDom } from 'jsdom';      // JavaScript implementation of DOM and HTML standards
+
+import app  from '../../app.js';
+
+const appAdmin = supertest.agent(app.listen()).host('www.localhost');
+
+
+describe(`WWW app (${app.env})`, function() {
+    describe('basic tests', function() {
+        it('sees home page', async function() {
+            const response = await appAdmin.get('/');
+            expect(response.status).to.equal(200);
+            const document = new JsDom(response.text).window.document;
+            expect(document.querySelector('h1').textContent).to.equal('Koa Sample App (handlebars templating + RESTful API using MySQL, on Node.js)');
+        });
+
+        it('sees contact page', async function() {
+            const response = await appAdmin.get('/contact');
+            expect(response.status).to.equal(200);
+            const document = new JsDom(response.text).window.document;
+            expect(document.querySelector('h1').textContent).to.equal('Koa Sample App contact page');
+        });
+
+        it('submits contact page', async function() {
+            const response = await appAdmin.post('/contact').send({ email: 'user@example.com', message: 'Hi there' });
+            expect(response.status).to.equal(302);
+            expect(response.headers.location).to.equal('/contact');
+        });
+    });
+});