Function makeApp

packages/react-dom/src/__tests__/ReactDOMFizzServer-test.js:4582–4609

()

  it('#24384: Suspending should halt hydration warnings and not emit any if hydration completes successfully after unsuspending', async () => {
    const makeApp = () => {
      let resolve, resolved;
      const promise = new Promise(r => {
        resolve = () => {
          resolved = true;
          return r();
        };
      });
      function ComponentThatSuspends() {
        if (!resolved) {
          throw promise;
        }
        return <p>A</p>;
      }

      const App = () => {
        return (
          <div>
            <Suspense fallback={<h1>Loading...</h1>}>
              <ComponentThatSuspends />
              <h2 name="hello">world</h2>
            </Suspense>
          </div>
        );
      };

      return [App, resolve];
    };

    const [ServerApp, serverResolve] = makeApp();
    await act(() => {