Added the missing test file.

test/testvizucreateclass.js

@@ -0,0 +1,74 @@
+/* global describe, it */
+/* eslint import/no-extraneous-dependencies: 1, no-unused-expressions: 1 */
+
+// -- Node modules
+import { expect } from 'chai';
+
+// -- Local modules
+import { Vizu } from '../index';
+
+
+// -- Local constants
+
+
+// -- Local variables
+
+
+// Create a few Web Components:
+const Aaa = Vizu.createClass();
+
+const Bbb = Vizu.createClass({
+  render() {
+    return `
+      <div class='aaa'>
+        <h1>Title</h1>
+      </div>
+    `;
+  },
+});
+
+
+// -- Main
+export default function(dom) {
+  //
+  describe('Test Vizu.createClass() method:', () => {
+    const view = Vizu.render(
+      '<Bbb />',
+      { '<Bbb />': Bbb },
+      dom.window.document.getElementById('app50'),
+    );
+
+    it('Expects Vizu.createClass() without any arguments to return null.', () => {
+      expect(Aaa).to.be.null;
+    });
+
+    it('Expects Vizu.createClass({ ... }) to return an object.', () => {
+      expect(view).to.be.an('object');
+    });
+
+    it('Expects this object to own the property Bbb.', () => {
+      expect(view).to.have.own.property('Bbb');
+    });
+    it('Expects the property Bbb to be an object.', () => {
+      expect(view.Bbb).to.be.an('object');
+    });
+    it('Expects the object Bbb to have own property id.', () => {
+      expect(view.Bbb).to.have.own.property('id');
+    });
+    it('Expects this property to be a string.', () => {
+      expect(view.Bbb.id).to.be.a('string');
+    });
+    it('Expects the object Bbb to have own property cList.', () => {
+      expect(view.Bbb).to.have.own.property('cList');
+    });
+    it('Expects this property to be null.', () => {
+      expect(view.Bbb.cList).to.be.null;
+    });
+    it('Expects the object Bbb to have own property components.', () => {
+      expect(view.Bbb).to.have.own.property('components');
+    });
+    it('Expects this property to be null.', () => {
+      expect(view.Bbb.components).to.be.null;
+    });
+  });
+}