adding tests

src/widget.test.js

@@ -0,0 +1,9 @@
+import React from 'react';
+import { shallow } from 'enzyme';
+import Widget from './widget';
+
+test('simple test', () => {
+  const widgetDom = shallow(<Widget />);
+  console.log(widgetDom.html());
+  expect(widgetDom.find('.docked-widget').exists()).toBe(true);
+});