https://codesandbox.io/s/upbeat-frost-3tt25

1. Press Suspend, see "Loading..."
2. Wait five seconds, you'll see "Happy birthday" at some point 
3. You won't see it again no matter how long you wait

Expected: you'll see it every five seconds.
'Loading...',
      
      'Async',
    ]);
    expect(ReactNoop.getChildren()).toEqual([span('Async')]);
  });
  it('throws a helpful error when an update is suspends without a placeholder', () => {
    ReactNoop.render(<AsyncText ms={1000} text="Async" />);
    expect(Scheduler).toFlushAndThrow(
      'AsyncText suspended while rendering, but no fallback UI was specified.',
    );
  });
  it('a Suspense component correctly handles more than one suspended child', async () => {
    ReactNoop.render(
      <Suspense fallback={<Text text="Loading..." />}>
        <AsyncText text="A" ms={100} />
        <AsyncText text="B" ms={100} />
      </Suspense>,
    );
    Scheduler.unstable_advanceTime(10000);
    expect(Scheduler).toFlushExpired([
      'Suspend! [A]',
      'Suspend! [B]',
      'Loading...',
    ]);
    expect(ReactNoop.getChildren()).toEqual([span('Loading...')]);
    await advanceTimers(100);
    expect(Scheduler).toHaveYielded([
      'Promise resolved [A]',