fixing tests for changed bookmark

src/outputs/bookmarklet.js

@@ -1,10 +1,12 @@
 import EmbeddableWidget from './embeddable-widget';
 
-(function bookmarklet() {
+export default function bookmarklet() {
   if (window.EmbeddableWidget) {
     return;
   }
   window.EmbeddableWidget = EmbeddableWidget;
 
   EmbeddableWidget.mount();
-}());
+}
+
+bookmarklet();

src/outputs/bookmarklet.test.js

@@ -1,14 +1,17 @@
-import './bookmarklet';
 import ReactDOM from 'react-dom';
+import bookmarklet from './bookmarklet';
 
 describe('bookmarklet', () => {
   afterEach(() => {
     const el = document.querySelectorAll('body > div');
     ReactDOM.unmountComponentAtNode(el[0]);
     el[0].parentNode.removeChild(el[0]);
+    window.EmbeddableWidget = null;
   });
 
   test('#mount document becomes ready', async () => {
+    expect(window.EmbeddableWidget).not.toBeNull();
+    bookmarklet();
     const el = document.querySelectorAll('body > div');
     expect(el).toHaveLength(1);
   });

src/outputs/embeddable-widget.test.js

@@ -21,7 +21,6 @@ describe('EmbeddableWidget', () => {
     await waitForSelection(document, 'div');
   });
 
-
   test('#mount twice', async () => {
     EmbeddableWidget.mount();
     expect(() => EmbeddableWidget.mount()).toThrow('already mounted');