Function Component

packages/react-reconciler/src/__tests__/useMemoCache-test.js:62–69

(props)

  it('render component using cache', async () => {
    function Component(props) {
      const cache = useMemoCache(1);
      expect(Array.isArray(cache)).toBe(true);
      expect(cache.length).toBe(1);
      expect(cache[0]).toBe(MemoCacheSentinel);

      return 'Ok';
    }
    const root = ReactNoop.createRoot();
    await act(() => {
      root.render(<Component />);