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.
'C',
        'Loading...',
        'Mount [A]',
        'Mount [B]',
        'Mount [C]',
        
        'Mount [Loading...]',
        'Commit root',
      ]);
      expect(ReactNoop).toMatchRenderedOutput(
        <>
          <span hidden={true} prop="A" />
          <span hidden={true} prop="C" />
          <span prop="Loading..." />
        </>,
      );
      ReactNoop.expire(1000);
      await advanceTimers(1000);
      expect(Scheduler).toHaveYielded(['Promise resolved [B]']);
      expect(Scheduler).toFlushExpired(['B']);
      expect(ReactNoop).toMatchRenderedOutput(
        <>
          <span prop="A" />
          <span prop="B" />
          <span prop="C" />
        </>,
      );
    });
    it('suspends inside constructor', async () => {
      class AsyncTextInConstructor extends React.Component {