Fix test gated for forceConcurrentByDefaultForTesting

Author: Jack Pope

packages/react-reconciler/src/__tests__/ReactSuspense-test.internal.js

@@ -339,12 +339,10 @@ describe('ReactSuspense', () => {
  async () => {
  const root = ReactDOMClient.createRoot(container);
 
- async function interrupt() {
+ function interrupt() {
  // React has a heuristic to batch all updates that occur within the same
  // event. This is a trick to circumvent that heuristic.
- await act(() => {
- root.render('whatever');
- });
+ ReactDOM.render('whatever', document.createElement('div'));
  }
 
  function App({shouldSuspend, step}) {
@@ -360,32 +358,24 @@ describe('ReactSuspense', () => {
  );
  }
 
- await act(() => {
- root.render(null);
- });
-
  root.render(<App shouldSuspend={false} step={0} />);
  await waitForAll(['A0', 'B0', 'C0']);
  expect(container.textContent).toEqual('A0B0C0');
 
  // This update will suspend.
- await act(() => {
- root.render(<App shouldSuspend={true} step={1} />);
- });
+ root.render(<App shouldSuspend={true} step={1} />);
 
  // Do a bit of work
  await waitFor(['A1']);
 
  // Schedule another update. This will have lower priority because it's
  // a transition.
- React.startTransition(async () => {
- await act(() => {
- root.render(<App shouldSuspend={false} step={2} />);
- });
+ React.startTransition(() => {
+ root.render(<App shouldSuspend={false} step={2} />);
  });
 
  // Interrupt to trigger a restart.
- await interrupt();
+ interrupt();
 
  await waitFor([
  // Should have restarted the first update, because of the interruption