Function App

packages/react-reconciler/src/__tests__/useSyncExternalStore-test.js:247–252

()

    const store = createExternalStore('value:initial');

    function App() {
      const value = useSyncExternalStore(store.subscribe, store.getState);
      const [sameValue, setSameValue] = useState(value);
      if (value !== sameValue) setSameValue(value);
      return <Text text={value} />;
    }

    const root = ReactNoop.createRoot();
    await act(() => {