test: add tests

__tests__/Renderer-test.js

@@ -1,5 +1,5 @@
 import React from 'react';
-import { render } from '@testing-library/react';
+import { render, screen, fireEvent } from '@testing-library/react';
 import Renderer from '../src/Renderer';
 
 it('refault is rendering', () => {
@@ -12,3 +12,24 @@ it('should render a test div', () => {
 
   expect(container.querySelector('.rcv-render')).toContainHTML('<div>test</div>');
 });
+
+it('should render a test div with footer', () => {
+  render(<Renderer renderExtraFooter={() => <div>footer</div>} />);
+
+  expect(screen.getByText('footer')).toBeInTheDocument();
+});
+
+it('should call onOpenEditor and onCloseEditor callback', () => {
+  const onOpenEditor = jest.fn();
+  const onCloseEditor = jest.fn();
+
+  render(<Renderer onOpenEditor={onOpenEditor} onCloseEditor={onCloseEditor} />);
+
+  fireEvent.click(screen.getByRole('switch', { name: 'Show the full source' }));
+
+  expect(onOpenEditor).toHaveBeenCalled();
+
+  fireEvent.click(screen.getByRole('switch', { name: 'Show the full source' }));
+
+  expect(onCloseEditor).toHaveBeenCalled();
+});