invoicer initial version

Change-Id: Ib20a96c224f5c055874f72f8f9a04a4dc8bbbc24
diff --git a/personal/arsenicum/invoicer/frontend/src/App.test.js b/personal/arsenicum/invoicer/frontend/src/App.test.js
new file mode 100644
index 0000000..ccf118f
--- /dev/null
+++ b/personal/arsenicum/invoicer/frontend/src/App.test.js
@@ -0,0 +1,8 @@
+import { render, screen } from '@testing-library/react';
+import App from './App';
+
+test('renders learn react link', () => {
+  render(<App />);
+  const linkElement = screen.getByText(/Clients/i);
+  expect(linkElement).toBeInTheDocument();
+});