Function Dummy

test/AppContainer.dev.test.js:1603–1606

()

    it('force updates the tree on receiving cached children', () => {
      const firstSpy = jest.fn();
      const Dummy = () => {
        firstSpy();
        return <div>first</div>;
      };

      const App = () => <Dummy />;
      RHL.register(Dummy, 'Dummy', 'test.js');