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...',
      'C',
      
    ]);
    expect(ReactNoop.getChildren()).toEqual([]);
    
    Scheduler.unstable_advanceTime(100);
    await advanceTimers(100);
    expect(Scheduler).toHaveYielded(['Promise resolved [A]']);
    
    
    expect(Scheduler).toFlushAndYield(['D']);
    expect(ReactNoop.getChildren()).toEqual([
      span('Loading...'),
      span('C'),
      span('D'),
    ]);
    
    await null;
    
    expect(Scheduler).toFlushAndYield(['Bar', 'A', 'B']);
    expect(ReactNoop.getChildren()).toEqual([
      span('A'),
      span('B'),
      span('C'),
      span('D'),
    ]);
  });
  it('suspends rendering and continues later', async () => {
    function Bar(props) {